From b2980a705b1f2d9aaa11fe716930b911791b38c0 Mon Sep 17 00:00:00 2001
From: Rory Hardy <rory.cronin-hardy@cerner.com>
Date: Sat, 3 Aug 2013 22:33:31 -0500
Subject: [PATCH 01/13] Added leap.min.js and comments.

---
 plugin/leap/leap.js | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 plugin/leap/leap.js

diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
new file mode 100644
index 00000000..ee882422
--- /dev/null
+++ b/plugin/leap/leap.js
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2013, Leap Motion, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+!function(e,t,n){function i(n,s){if(!t[n]){if(!e[n]){var o=typeof require=="function"&&require;if(!s&&o)return o(n,!0);if(r)return r(n,!0);throw new Error("Cannot find module '"+n+"'")}var u=t[n]={exports:{}};e[n][0].call(u.exports,function(t){var r=e[n][1][t];return i(r?r:t)},u,u.exports)}return t[n].exports}var r=typeof require=="function"&&require;for(var s=0;s<n.length;s++)i(n[s]);return i}({1:[function(require,module,exports){var chooseProtocol=require("./protocol").chooseProtocol,EventEmitter=require("events").EventEmitter,_=require("underscore");var BaseConnection=module.exports=function(opts){this.opts=_.defaults(opts||{},{host:"127.0.0.1",enableGestures:false,port:6437,enableHeartbeat:true,heartbeatInterval:100,requestProtocolVersion:3});this.host=opts.host;this.port=opts.port;this.on("ready",function(){this.enableGestures(this.opts.enableGestures);if(this.opts.enableHeartbeat)this.startHeartbeat()});this.on("disconnect",function(){if(this.opts.enableHeartbeat)this.stopHeartbeat()});this.heartbeatTimer=null};BaseConnection.prototype.getUrl=function(){return"ws://"+this.host+":"+this.port+"/v"+this.opts.requestProtocolVersion+".json"};BaseConnection.prototype.sendHeartbeat=function(){if(this.protocol){this.setHeartbeatState(true);this.protocol.sendHeartbeat(this)}};BaseConnection.prototype.handleOpen=function(){this.emit("connect")};BaseConnection.prototype.enableGestures=function(enabled){this.gesturesEnabled=enabled?true:false;this.send(this.protocol.encode({enableGestures:this.gesturesEnabled}))};BaseConnection.prototype.handleClose=function(){this.disconnect();this.startReconnection()};BaseConnection.prototype.startReconnection=function(){var connection=this;setTimeout(function(){connection.connect()},1e3)};BaseConnection.prototype.disconnect=function(){if(!this.socket)return;this.socket.close();delete this.socket;delete this.protocol;this.emit("disconnect")};BaseConnection.prototype.handleData=function(data){var message=JSON.parse(data);var messageEvent;if(this.protocol===undefined){messageEvent=this.protocol=chooseProtocol(message);this.emit("ready")}else{messageEvent=this.protocol(message)}this.emit(messageEvent.type,messageEvent)};BaseConnection.prototype.connect=function(){if(this.socket)return;this.socket=this.setupSocket();return true};BaseConnection.prototype.send=function(data){this.socket.send(data)};BaseConnection.prototype.stopHeartbeat=function(){if(!this.heartbeatTimer)return;clearInterval(this.heartbeatTimer);delete this.heartbeatTimer;this.setHeartbeatState(false)};BaseConnection.prototype.setHeartbeatState=function(state){if(this.heartbeatState===state)return;this.heartbeatState=state;this.emit(this.heartbeatState?"focus":"blur")};_.extend(BaseConnection.prototype,EventEmitter.prototype)},{"./protocol":12,events:17,underscore:20}],2:[function(require,module,exports){var CircularBuffer=module.exports=function(size){this.pos=0;this._buf=[];this.size=size};CircularBuffer.prototype.get=function(i){if(i==undefined)i=0;if(i>=this.size)return undefined;if(i>=this._buf.length)return undefined;return this._buf[(this.pos-i-1)%this.size]};CircularBuffer.prototype.push=function(o){this._buf[this.pos%this.size]=o;return this.pos++}},{}],3:[function(require,module,exports){var Connection=module.exports=require("./base_connection");Connection.prototype.setupSocket=function(){var connection=this;var socket=new WebSocket(this.getUrl());socket.onopen=function(){connection.handleOpen()};socket.onmessage=function(message){connection.handleData(message.data)};socket.onclose=function(){connection.handleClose()};return socket};Connection.prototype.startHeartbeat=function(){if(!this.protocol.sendHeartbeat||this.heartbeatTimer)return;var connection=this;var propertyName=null;if(typeof document.hidden!=="undefined"){propertyName="hidden"}else if(typeof document.mozHidden!=="undefined"){propertyName="mozHidden"}else if(typeof document.msHidden!=="undefined"){propertyName="msHidden"}else if(typeof document.webkitHidden!=="undefined"){propertyName="webkitHidden"}else{propertyName=undefined}var windowVisible=true;var focusListener=window.addEventListener("focus",function(e){windowVisible=true});var blurListener=window.addEventListener("blur",function(e){windowVisible=false});this.on("disconnect",function(){if(connection.heartbeatTimer){clearTimeout(connection.heartbeatTimer);delete connection.heartbeatTimer}window.removeEventListener(focusListener);window.removeEventListener(blurListener)});this.heartbeatTimer=setInterval(function(){var isVisible=propertyName===undefined?true:document[propertyName]===false;if(isVisible&&windowVisible){connection.sendHeartbeat()}else{connection.setHeartbeatState(false)}},this.opts.heartbeatInterval)}},{"./base_connection":1}],4:[function(require,module,exports){!function(process){var Frame=require("./frame"),CircularBuffer=require("./circular_buffer"),Pipeline=require("./pipeline"),EventEmitter=require("events").EventEmitter,gestureListener=require("./gesture").gestureListener,_=require("underscore");var Controller=module.exports=function(opts){var inNode=typeof process!=="undefined"&&process.title==="node";opts=_.defaults(opts||{},{inNode:inNode});this.inNode=opts.inNode;opts=_.defaults(opts||{},{frameEventName:this.useAnimationLoop()?"animationFrame":"deviceFrame",supressAnimationLoop:false});this.supressAnimationLoop=opts.supressAnimationLoop;this.frameEventName=opts.frameEventName;this.history=new CircularBuffer(200);this.lastFrame=Frame.Invalid;this.lastValidFrame=Frame.Invalid;this.lastConnectionFrame=Frame.Invalid;this.accumulatedGestures=[];if(opts.connectionType===undefined){this.connectionType=this.inBrowser()?require("./connection"):require("./node_connection")}else{this.connectionType=opts.connectionType}this.connection=new this.connectionType(opts);this.setupConnectionEvents()};Controller.prototype.gesture=function(type,cb){var creator=gestureListener(this,type);if(cb!==undefined){creator.stop(cb)}return creator};Controller.prototype.inBrowser=function(){return!this.inNode};Controller.prototype.useAnimationLoop=function(){return this.inBrowser()&&typeof chrome==="undefined"};Controller.prototype.connect=function(){var controller=this;if(this.connection.connect()&&this.inBrowser()&&!controller.supressAnimationLoop){var callback=function(){controller.emit("animationFrame",controller.lastConnectionFrame);window.requestAnimFrame(callback)};window.requestAnimFrame(callback)}};Controller.prototype.disconnect=function(){this.connection.disconnect()};Controller.prototype.frame=function(num){return this.history.get(num)||Frame.Invalid};Controller.prototype.loop=function(callback){switch(callback.length){case 1:this.on(this.frameEventName,callback);break;case 2:var controller=this;var scheduler=null;var immediateRunnerCallback=function(frame){callback(frame,function(){if(controller.lastFrame!=frame){immediateRunnerCallback(controller.lastFrame)}else{controller.once(controller.frameEventName,immediateRunnerCallback)}})};this.once(this.frameEventName,immediateRunnerCallback);break}this.connect()};Controller.prototype.addStep=function(step){if(!this.pipeline)this.pipeline=new Pipeline(this);this.pipeline.addStep(step)};Controller.prototype.processFrame=function(frame){if(frame.gestures){this.accumulatedGestures=this.accumulatedGestures.concat(frame.gestures)}if(this.pipeline){frame=this.pipeline.run(frame);if(!frame)frame=Frame.Invalid}this.lastConnectionFrame=frame;this.emit("deviceFrame",frame)};Controller.prototype.processFinishedFrame=function(frame){this.lastFrame=frame;if(frame.valid){this.lastValidFrame=frame}frame.controller=this;frame.historyIdx=this.history.push(frame);if(frame.gestures){frame.gestures=this.accumulatedGestures;this.accumulatedGestures=[];for(var gestureIdx=0;gestureIdx!=frame.gestures.length;gestureIdx++){this.emit("gesture",frame.gestures[gestureIdx],frame)}}this.emit("frame",frame)};Controller.prototype.setupConnectionEvents=function(){var controller=this;this.connection.on("frame",function(frame){controller.processFrame(frame)});this.on(this.frameEventName,function(frame){controller.processFinishedFrame(frame)});this.connection.on("disconnect",function(){controller.emit("disconnect")});this.connection.on("ready",function(){controller.emit("ready")});this.connection.on("connect",function(){controller.emit("connect")});this.connection.on("focus",function(){controller.emit("focus")});this.connection.on("blur",function(){controller.emit("blur")});this.connection.on("protocol",function(protocol){controller.emit("protocol",protocol)});this.connection.on("deviceConnect",function(evt){controller.emit(evt.state?"deviceConnected":"deviceDisconnected")})};_.extend(Controller.prototype,EventEmitter.prototype)}(require("__browserify_process"))},{"./circular_buffer":2,"./connection":3,"./frame":5,"./gesture":6,"./node_connection":16,"./pipeline":10,__browserify_process:18,events:17,underscore:20}],5:[function(require,module,exports){var Hand=require("./hand"),Pointable=require("./pointable"),createGesture=require("./gesture").createGesture,glMatrix=require("gl-matrix"),mat3=glMatrix.mat3,vec3=glMatrix.vec3,InteractionBox=require("./interaction_box"),_=require("underscore");var Frame=module.exports=function(data){this.valid=true;this.id=data.id;this.timestamp=data.timestamp;this.hands=[];this.handsMap={};this.pointables=[];this.tools=[];this.fingers=[];if(data.interactionBox){this.interactionBox=new InteractionBox(data.interactionBox)}this.gestures=[];this.pointablesMap={};this._translation=data.t;this._rotation=_.flatten(data.r);this._scaleFactor=data.s;this.data=data;this.type="frame";this.currentFrameRate=data.currentFrameRate;var handMap={};for(var handIdx=0,handCount=data.hands.length;handIdx!=handCount;handIdx++){var hand=new Hand(data.hands[handIdx]);hand.frame=this;this.hands.push(hand);this.handsMap[hand.id]=hand;handMap[hand.id]=handIdx}for(var pointableIdx=0,pointableCount=data.pointables.length;pointableIdx!=pointableCount;pointableIdx++){var pointable=new Pointable(data.pointables[pointableIdx]);pointable.frame=this;this.pointables.push(pointable);this.pointablesMap[pointable.id]=pointable;(pointable.tool?this.tools:this.fingers).push(pointable);if(pointable.handId!==undefined&&handMap.hasOwnProperty(pointable.handId)){var hand=this.hands[handMap[pointable.handId]];hand.pointables.push(pointable);(pointable.tool?hand.tools:hand.fingers).push(pointable)}}if(data.gestures){for(var gestureIdx=0,gestureCount=data.gestures.length;gestureIdx!=gestureCount;gestureIdx++){this.gestures.push(createGesture(data.gestures[gestureIdx]))}}};Frame.prototype.tool=function(id){var pointable=this.pointable(id);return pointable.tool?pointable:Pointable.Invalid};Frame.prototype.pointable=function(id){return this.pointablesMap[id]||Pointable.Invalid};Frame.prototype.finger=function(id){var pointable=this.pointable(id);return!pointable.tool?pointable:Pointable.Invalid};Frame.prototype.hand=function(id){return this.handsMap[id]||Hand.Invalid};Frame.prototype.rotationAngle=function(sinceFrame,axis){if(!this.valid||!sinceFrame.valid)return 0;var rot=this.rotationMatrix(sinceFrame);var cs=(rot[0]+rot[4]+rot[8]-1)*.5;var angle=Math.acos(cs);angle=isNaN(angle)?0:angle;if(axis!==undefined){var rotAxis=this.rotationAxis(sinceFrame);angle*=vec3.dot(rotAxis,vec3.normalize(vec3.create(),axis))}return angle};Frame.prototype.rotationAxis=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();return vec3.normalize(vec3.create(),[this._rotation[7]-sinceFrame._rotation[5],this._rotation[2]-sinceFrame._rotation[6],this._rotation[3]-sinceFrame._rotation[1]])};Frame.prototype.rotationMatrix=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return mat3.create();var transpose=mat3.transpose(mat3.create(),this._rotation);return mat3.multiply(mat3.create(),sinceFrame._rotation,transpose)};Frame.prototype.scaleFactor=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return 1;return Math.exp(this._scaleFactor-sinceFrame._scaleFactor)};Frame.prototype.translation=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();return vec3.subtract(vec3.create(),this._translation,sinceFrame._translation)};Frame.prototype.toString=function(){var str="Frame [ id:"+this.id+" | timestamp:"+this.timestamp+" | Hand count:("+this.hands.length+") | Pointable count:("+this.pointables.length+")";if(this.gestures)str+=" | Gesture count:("+this.gestures.length+")";str+=" ]";return str};Frame.prototype.dump=function(){var out="";out+="Frame Info:<br/>";out+=this.toString();out+="<br/><br/>Hands:<br/>";for(var handIdx=0,handCount=this.hands.length;handIdx!=handCount;handIdx++){out+="  "+this.hands[handIdx].toString()+"<br/>"}out+="<br/><br/>Pointables:<br/>";for(var pointableIdx=0,pointableCount=this.pointables.length;pointableIdx!=pointableCount;pointableIdx++){out+="  "+this.pointables[pointableIdx].toString()+"<br/>"}if(this.gestures){out+="<br/><br/>Gestures:<br/>";for(var gestureIdx=0,gestureCount=this.gestures.length;gestureIdx!=gestureCount;gestureIdx++){out+="  "+this.gestures[gestureIdx].toString()+"<br/>"}}out+="<br/><br/>Raw JSON:<br/>";out+=JSON.stringify(this.data);return out};Frame.Invalid={valid:false,hands:[],fingers:[],tools:[],gestures:[],pointables:[],pointable:function(){return Pointable.Invalid},finger:function(){return Pointable.Invalid},hand:function(){return Hand.Invalid},toString:function(){return"invalid frame"},dump:function(){return this.toString()},rotationAngle:function(){return 0},rotationMatrix:function(){return mat3.create()},rotationAxis:function(){return vec3.create()},scaleFactor:function(){return 1},translation:function(){return vec3.create()}}},{"./gesture":6,"./hand":7,"./interaction_box":9,"./pointable":11,"gl-matrix":19,underscore:20}],6:[function(require,module,exports){var glMatrix=require("gl-matrix"),vec3=glMatrix.vec3,EventEmitter=require("events").EventEmitter,_=require("underscore");var createGesture=exports.createGesture=function(data){var gesture;switch(data.type){case"circle":gesture=new CircleGesture(data);break;case"swipe":gesture=new SwipeGesture(data);break;case"screenTap":gesture=new ScreenTapGesture(data);break;case"keyTap":gesture=new KeyTapGesture(data);break;default:throw"unkown gesture type"}gesture.id=data.id;gesture.handIds=data.handIds;gesture.pointableIds=data.pointableIds;gesture.duration=data.duration;gesture.state=data.state;gesture.type=data.type;return gesture};var gestureListener=exports.gestureListener=function(controller,type){var handlers={};var gestureMap={};var gestureCreator=function(){var candidateGesture=gestureMap[gesture.id];if(candidateGesture!==undefined)gesture.update(gesture,frame);if(gesture.state=="start"||gesture.state=="stop"){if(type==gesture.type&&gestureMap[gesture.id]===undefined){gestureMap[gesture.id]=new Gesture(gesture,frame);gesture.update(gesture,frame)}if(gesture.state=="stop"){delete gestureMap[gesture.id]}}};controller.on("gesture",function(gesture,frame){if(gesture.type==type){if(gesture.state=="start"||gesture.state=="stop"){if(gestureMap[gesture.id]===undefined){var gestureTracker=new Gesture(gesture,frame);gestureMap[gesture.id]=gestureTracker;_.each(handlers,function(cb,name){gestureTracker.on(name,cb)})}}gestureMap[gesture.id].update(gesture,frame);if(gesture.state=="stop"){delete gestureMap[gesture.id]}}});var builder={start:function(cb){handlers["start"]=cb;return builder},stop:function(cb){handlers["stop"]=cb;return builder},complete:function(cb){handlers["stop"]=cb;return builder},update:function(cb){handlers["update"]=cb;return builder}};return builder};var Gesture=exports.Gesture=function(gesture,frame){this.gestures=[gesture];this.frames=[frame]};Gesture.prototype.update=function(gesture,frame){this.gestures.push(gesture);this.frames.push(frame);this.emit(gesture.state,this)};_.extend(Gesture.prototype,EventEmitter.prototype);var CircleGesture=function(data){this.center=data.center;this.normal=data.normal;this.progress=data.progress;this.radius=data.radius};CircleGesture.prototype.toString=function(){return"CircleGesture ["+JSON.stringify(this)+"]"};var SwipeGesture=function(data){this.startPosition=data.startPosition;this.position=data.position;this.direction=data.direction;this.speed=data.speed};SwipeGesture.prototype.toString=function(){return"SwipeGesture ["+JSON.stringify(this)+"]"};var ScreenTapGesture=function(data){this.position=data.position;this.direction=data.direction;this.progress=data.progress};ScreenTapGesture.prototype.toString=function(){return"ScreenTapGesture ["+JSON.stringify(this)+"]"};var KeyTapGesture=function(data){this.position=data.position;this.direction=data.direction;this.progress=data.progress};KeyTapGesture.prototype.toString=function(){return"KeyTapGesture ["+JSON.stringify(this)+"]"}},{events:17,"gl-matrix":19,underscore:20}],7:[function(require,module,exports){var Pointable=require("./pointable"),glMatrix=require("gl-matrix"),mat3=glMatrix.mat3,vec3=glMatrix.vec3,_=require("underscore");var Hand=module.exports=function(data){this.id=data.id;this.palmPosition=data.palmPosition;this.direction=data.direction;this.palmVelocity=data.palmVelocity;this.palmNormal=data.palmNormal;this.sphereCenter=data.sphereCenter;this.sphereRadius=data.sphereRadius;this.valid=true;this.pointables=[];this.fingers=[];this.tools=[];this._translation=data.t;this._rotation=_.flatten(data.r);this._scaleFactor=data.s;this.timeVisible=data.timeVisible;this.stabilizedPalmPosition=data.stabilizedPalmPosition};Hand.prototype.finger=function(id){var finger=this.frame.finger(id);return finger&&finger.handId==this.id?finger:Pointable.Invalid};Hand.prototype.rotationAngle=function(sinceFrame,axis){if(!this.valid||!sinceFrame.valid)return 0;var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return 0;var rot=this.rotationMatrix(sinceFrame);var cs=(rot[0]+rot[4]+rot[8]-1)*.5;var angle=Math.acos(cs);angle=isNaN(angle)?0:angle;if(axis!==undefined){var rotAxis=this.rotationAxis(sinceFrame);angle*=vec3.dot(rotAxis,vec3.normalize(vec3.create(),axis))}return angle};Hand.prototype.rotationAxis=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return vec3.create();return vec3.normalize(vec3.create(),[this._rotation[7]-sinceHand._rotation[5],this._rotation[2]-sinceHand._rotation[6],this._rotation[3]-sinceHand._rotation[1]])};Hand.prototype.rotationMatrix=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return mat3.create();var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return mat3.create();var transpose=mat3.transpose(mat3.create(),this._rotation);var m=mat3.multiply(mat3.create(),sinceHand._rotation,transpose);return m};Hand.prototype.scaleFactor=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return 1;var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return 1;return Math.exp(this._scaleFactor-sinceHand._scaleFactor)};Hand.prototype.translation=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return vec3.create();return[this._translation[0]-sinceHand._translation[0],this._translation[1]-sinceHand._translation[1],this._translation[2]-sinceHand._translation[2]]};Hand.prototype.toString=function(){return"Hand [ id: "+this.id+" | palm velocity:"+this.palmVelocity+" | sphere center:"+this.sphereCenter+" ] "};Hand.Invalid={valid:false,fingers:[],tools:[],pointables:[],pointable:function(){return Pointable.Invalid},finger:function(){return Pointable.Invalid},toString:function(){return"invalid frame"},dump:function(){return this.toString()},rotationAngle:function(){return 0},rotationMatrix:function(){return mat3.create()},rotationAxis:function(){return vec3.create()},scaleFactor:function(){return 1},translation:function(){return vec3.create()}}},{"./pointable":11,"gl-matrix":19,underscore:20}],8:[function(require,module,exports){!function(){module.exports={Controller:require("./controller"),Frame:require("./frame"),Gesture:require("./gesture"),Hand:require("./hand"),Pointable:require("./pointable"),InteractionBox:require("./interaction_box"),Connection:require("./connection"),CircularBuffer:require("./circular_buffer"),UI:require("./ui"),glMatrix:require("gl-matrix"),mat3:require("gl-matrix").mat3,vec3:require("gl-matrix").vec3,loopController:undefined,loop:function(opts,callback){if(callback===undefined){callback=opts;opts={}}if(!this.loopController)this.loopController=new this.Controller(opts);this.loopController.loop(callback)}}}()},{"./circular_buffer":2,"./connection":3,"./controller":4,"./frame":5,"./gesture":6,"./hand":7,"./interaction_box":9,"./pointable":11,"./ui":13,"gl-matrix":19}],9:[function(require,module,exports){var glMatrix=require("gl-matrix"),vec3=glMatrix.vec3;var InteractionBox=module.exports=function(data){this.valid=true;this.center=data.center;this.size=data.size;this.width=data.size[0];this.height=data.size[1];this.depth=data.size[2]};InteractionBox.prototype.denormalizePoint=function(normalizedPosition){return vec3.fromValues((normalizedPosition[0]-.5)*this.size[0]+this.center[0],(normalizedPosition[1]-.5)*this.size[1]+this.center[1],(normalizedPosition[2]-.5)*this.size[2]+this.center[2])};InteractionBox.prototype.normalizePoint=function(position,clamp){var vec=vec3.fromValues((position[0]-this.center[0])/this.size[0]+.5,(position[1]-this.center[1])/this.size[1]+.5,(position[2]-this.center[2])/this.size[2]+.5);if(clamp){vec[0]=Math.min(Math.max(vec[0],0),1);vec[1]=Math.min(Math.max(vec[1],0),1);vec[2]=Math.min(Math.max(vec[2],0),1)}return vec};InteractionBox.prototype.toString=function(){return"InteractionBox [ width:"+this.width+" | height:"+this.height+" | depth:"+this.depth+" ]"};InteractionBox.Invalid={valid:false}},{"gl-matrix":19}],10:[function(require,module,exports){var Pipeline=module.exports=function(){this.steps=[]};Pipeline.prototype.addStep=function(step){this.steps.push(step)};Pipeline.prototype.run=function(frame){var stepsLength=this.steps.length;for(var i=0;i!=stepsLength;i++){if(!frame)break;frame=this.steps[i](frame)}return frame}},{}],11:[function(require,module,exports){var glMatrix=require("gl-matrix"),vec3=glMatrix.vec3;var Pointable=module.exports=function(data){this.valid=true;this.id=data.id;this.handId=data.handId;this.length=data.length;this.tool=data.tool;this.width=data.width;this.direction=data.direction;this.stabilizedTipPosition=data.stabilizedTipPosition;this.tipPosition=data.tipPosition;this.tipVelocity=data.tipVelocity;this.touchZone=data.touchZone;this.touchDistance=data.touchDistance;this.timeVisible=data.timeVisible};Pointable.prototype.toString=function(){if(this.tool==true){return"Pointable [ id:"+this.id+" "+this.length+"mmx | with:"+this.width+"mm | direction:"+this.direction+" ]"}else{return"Pointable [ id:"+this.id+" "+this.length+"mmx | direction: "+this.direction+" ]"}};Pointable.Invalid={valid:false}},{"gl-matrix":19}],12:[function(require,module,exports){var Frame=require("./frame");var Event=function(data){this.type=data.type;this.state=data.state};var chooseProtocol=exports.chooseProtocol=function(header){var protocol;switch(header.version){case 1:protocol=JSONProtocol(1,function(data){return new Frame(data)});break;case 2:protocol=JSONProtocol(2,function(data){return new Frame(data)});protocol.sendHeartbeat=function(connection){connection.send(protocol.encode({heartbeat:true}))};break;case 3:protocol=JSONProtocol(3,function(data){return data.event?new Event(data.event):new Frame(data)});protocol.sendHeartbeat=function(connection){connection.send(protocol.encode({heartbeat:true}))};break;default:throw"unrecognized version"}return protocol};var JSONProtocol=function(version,cb){var protocol=cb;protocol.encode=function(message){return JSON.stringify(message)};protocol.version=version;protocol.versionLong="Version "+version;protocol.type="protocol";return protocol}},{"./frame":5}],13:[function(require,module,exports){exports.UI={Region:require("./ui/region"),Cursor:require("./ui/cursor")}},{"./ui/cursor":14,"./ui/region":15}],14:[function(require,module,exports){var Cursor=module.exports=function(){return function(frame){var pointable=frame.pointables.sort(function(a,b){return a.z-b.z})[0];if(pointable&&pointable.valid){frame.cursorPosition=pointable.tipPosition}return frame}}},{}],15:[function(require,module,exports){var EventEmitter=require("events").EventEmitter,_=require("underscore");var Region=module.exports=function(start,end){this.start=new Vector(start);this.end=new Vector(end);this.enteredFrame=null};Region.prototype.hasPointables=function(frame){for(var i=0;i!=frame.pointables.length;i++){var position=frame.pointables[i].tipPosition;if(position.x>=this.start.x&&position.x<=this.end.x&&position.y>=this.start.y&&position.y<=this.end.y&&position.z>=this.start.z&&position.z<=this.end.z){return true}}return false};Region.prototype.listener=function(opts){var region=this;if(opts&&opts.nearThreshold)this.setupNearRegion(opts.nearThreshold);return function(frame){return region.updatePosition(frame)}};Region.prototype.clipper=function(){var region=this;return function(frame){region.updatePosition(frame);return region.enteredFrame?frame:null}};Region.prototype.setupNearRegion=function(distance){var nearRegion=this.nearRegion=new Region([this.start.x-distance,this.start.y-distance,this.start.z-distance],[this.end.x+distance,this.end.y+distance,this.end.z+distance]);var region=this;nearRegion.on("enter",function(frame){region.emit("near",frame)});nearRegion.on("exit",function(frame){region.emit("far",frame)});region.on("exit",function(frame){region.emit("near",frame)})};Region.prototype.updatePosition=function(frame){if(this.nearRegion)this.nearRegion.updatePosition(frame);if(this.hasPointables(frame)&&this.enteredFrame==null){this.enteredFrame=frame;this.emit("enter",this.enteredFrame)}else if(!this.hasPointables(frame)&&this.enteredFrame!=null){this.enteredFrame=null;this.emit("exit",this.enteredFrame)}return frame};Region.prototype.normalize=function(position){return new Vector([(position.x-this.start.x)/(this.end.x-this.start.x),(position.y-this.start.y)/(this.end.y-this.start.y),(position.z-this.start.z)/(this.end.z-this.start.z)])};Region.prototype.mapToXY=function(position,width,height){var normalized=this.normalize(position);var x=normalized.x,y=normalized.y;if(x>1)x=1;else if(x<-1)x=-1;if(y>1)y=1;else if(y<-1)y=-1;return[(x+1)/2*width,(1-y)/2*height,normalized.z]};_.extend(Region.prototype,EventEmitter.prototype)},{events:17,underscore:20}],16:[function(require,module,exports){},{}],17:[function(require,module,exports){!function(process){if(!process.EventEmitter)process.EventEmitter=function(){};var EventEmitter=exports.EventEmitter=process.EventEmitter;var isArray=typeof Array.isArray==="function"?Array.isArray:function(xs){return Object.prototype.toString.call(xs)==="[object Array]"};function indexOf(xs,x){if(xs.indexOf)return xs.indexOf(x);for(var i=0;i<xs.length;i++){if(x===xs[i])return i}return-1}var defaultMaxListeners=10;EventEmitter.prototype.setMaxListeners=function(n){if(!this._events)this._events={};this._events.maxListeners=n};EventEmitter.prototype.emit=function(type){if(type==="error"){if(!this._events||!this._events.error||isArray(this._events.error)&&!this._events.error.length){if(arguments[1]instanceof Error){throw arguments[1]}else{throw new Error("Uncaught, unspecified 'error' event.")}return false}}if(!this._events)return false;var handler=this._events[type];if(!handler)return false;if(typeof handler=="function"){switch(arguments.length){case 1:handler.call(this);break;case 2:handler.call(this,arguments[1]);break;case 3:handler.call(this,arguments[1],arguments[2]);break;default:var args=Array.prototype.slice.call(arguments,1);handler.apply(this,args)}return true}else if(isArray(handler)){var args=Array.prototype.slice.call(arguments,1);var listeners=handler.slice();for(var i=0,l=listeners.length;i<l;i++){listeners[i].apply(this,args)}return true}else{return false}};EventEmitter.prototype.addListener=function(type,listener){if("function"!==typeof listener){throw new Error("addListener only takes instances of Function")}if(!this._events)this._events={};this.emit("newListener",type,listener);if(!this._events[type]){this._events[type]=listener}else if(isArray(this._events[type])){if(!this._events[type].warned){var m;if(this._events.maxListeners!==undefined){m=this._events.maxListeners}else{m=defaultMaxListeners}if(m&&m>0&&this._events[type].length>m){this._events[type].warned=true;console.error("(node) warning: possible EventEmitter memory "+"leak detected. %d listeners added. "+"Use emitter.setMaxListeners() to increase limit.",this._events[type].length);console.trace()}}this._events[type].push(listener)}else{this._events[type]=[this._events[type],listener]}return this};EventEmitter.prototype.on=EventEmitter.prototype.addListener;EventEmitter.prototype.once=function(type,listener){var self=this;self.on(type,function g(){self.removeListener(type,g);listener.apply(this,arguments)});return this};EventEmitter.prototype.removeListener=function(type,listener){if("function"!==typeof listener){throw new Error("removeListener only takes instances of Function")}if(!this._events||!this._events[type])return this;var list=this._events[type];if(isArray(list)){var i=indexOf(list,listener);if(i<0)return this;list.splice(i,1);if(list.length==0)delete this._events[type]}else if(this._events[type]===listener){delete this._events[type]}return this};EventEmitter.prototype.removeAllListeners=function(type){if(arguments.length===0){this._events={};return this}if(type&&this._events&&this._events[type])this._events[type]=null;return this};EventEmitter.prototype.listeners=function(type){if(!this._events)this._events={};if(!this._events[type])this._events[type]=[];if(!isArray(this._events[type])){this._events[type]=[this._events[type]]}return this._events[type]}}(require("__browserify_process"))},{__browserify_process:18}],18:[function(require,module,exports){var process=module.exports={};process.nextTick=function(){var canSetImmediate=typeof window!=="undefined"&&window.setImmediate;var canPost=typeof window!=="undefined"&&window.postMessage&&window.addEventListener;if(canSetImmediate){return function(f){return window.setImmediate(f)}}if(canPost){var queue=[];window.addEventListener("message",function(ev){if(ev.source===window&&ev.data==="process-tick"){ev.stopPropagation();if(queue.length>0){var fn=queue.shift();fn()}}},true);return function nextTick(fn){queue.push(fn);window.postMessage("process-tick","*")}}return function nextTick(fn){setTimeout(fn,0)}}();process.title="browser";process.browser=true;process.env={};process.argv=[];process.binding=function(name){throw new Error("process.binding is not supported")};process.cwd=function(){return"/"};process.chdir=function(dir){throw new Error("process.chdir is not supported")}},{}],19:[function(require,module,exports){!function(){!function(){"use strict";var shim={};if(typeof exports==="undefined"){if(typeof define=="function"&&typeof define.amd=="object"&&define.amd){shim.exports={};define(function(){return shim.exports})}else{shim.exports=window}}else{shim.exports=exports}!function(exports){var vec2={};if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}vec2.create=function(){return new Float32Array(2)};vec2.clone=function(a){var out=new Float32Array(2);out[0]=a[0];out[1]=a[1];return out};vec2.fromValues=function(x,y){var out=new Float32Array(2);out[0]=x;out[1]=y;return out};vec2.copy=function(out,a){out[0]=a[0];out[1]=a[1];return out};vec2.set=function(out,x,y){out[0]=x;out[1]=y;return out};vec2.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];return out};vec2.sub=vec2.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];return out};vec2.mul=vec2.multiply=function(out,a,b){out[0]=a[0]*b[0];out[1]=a[1]*b[1];return out};vec2.div=vec2.divide=function(out,a,b){out[0]=a[0]/b[0];out[1]=a[1]/b[1];return out};vec2.min=function(out,a,b){out[0]=Math.min(a[0],b[0]);
+out[1]=Math.min(a[1],b[1]);return out};vec2.max=function(out,a,b){out[0]=Math.max(a[0],b[0]);out[1]=Math.max(a[1],b[1]);return out};vec2.scale=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;return out};vec2.dist=vec2.distance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1];return Math.sqrt(x*x+y*y)};vec2.sqrDist=vec2.squaredDistance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1];return x*x+y*y};vec2.len=vec2.length=function(a){var x=a[0],y=a[1];return Math.sqrt(x*x+y*y)};vec2.sqrLen=vec2.squaredLength=function(a){var x=a[0],y=a[1];return x*x+y*y};vec2.negate=function(out,a){out[0]=-a[0];out[1]=-a[1];return out};vec2.normalize=function(out,a){var x=a[0],y=a[1];var len=x*x+y*y;if(len>0){len=1/Math.sqrt(len);out[0]=a[0]*len;out[1]=a[1]*len}return out};vec2.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]};vec2.cross=function(out,a,b){var z=a[0]*b[1]-a[1]*b[0];out[0]=out[1]=0;out[2]=z;return out};vec2.lerp=function(out,a,b,t){var ax=a[0],ay=a[1];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);return out};vec2.transformMat2=function(out,a,m){var x=a[0],y=a[1];out[0]=x*m[0]+y*m[1];out[1]=x*m[2]+y*m[3];return out};vec2.forEach=function(){var vec=new Float32Array(2);return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=2}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i<l;i+=stride){vec[0]=a[i];vec[1]=a[i+1];fn(vec,vec,arg);a[i]=vec[0];a[i+1]=vec[1]}return a}}();vec2.str=function(a){return"vec2("+a[0]+", "+a[1]+")"};if(typeof exports!=="undefined"){exports.vec2=vec2}var vec3={};if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}vec3.create=function(){return new Float32Array(3)};vec3.clone=function(a){var out=new Float32Array(3);out[0]=a[0];out[1]=a[1];out[2]=a[2];return out};vec3.fromValues=function(x,y,z){var out=new Float32Array(3);out[0]=x;out[1]=y;out[2]=z;return out};vec3.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];return out};vec3.set=function(out,x,y,z){out[0]=x;out[1]=y;out[2]=z;return out};vec3.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];out[2]=a[2]+b[2];return out};vec3.sub=vec3.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];out[2]=a[2]-b[2];return out};vec3.mul=vec3.multiply=function(out,a,b){out[0]=a[0]*b[0];out[1]=a[1]*b[1];out[2]=a[2]*b[2];return out};vec3.div=vec3.divide=function(out,a,b){out[0]=a[0]/b[0];out[1]=a[1]/b[1];out[2]=a[2]/b[2];return out};vec3.min=function(out,a,b){out[0]=Math.min(a[0],b[0]);out[1]=Math.min(a[1],b[1]);out[2]=Math.min(a[2],b[2]);return out};vec3.max=function(out,a,b){out[0]=Math.max(a[0],b[0]);out[1]=Math.max(a[1],b[1]);out[2]=Math.max(a[2],b[2]);return out};vec3.scale=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;out[2]=a[2]*b;return out};vec3.dist=vec3.distance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2];return Math.sqrt(x*x+y*y+z*z)};vec3.sqrDist=vec3.squaredDistance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2];return x*x+y*y+z*z};vec3.len=vec3.length=function(a){var x=a[0],y=a[1],z=a[2];return Math.sqrt(x*x+y*y+z*z)};vec3.sqrLen=vec3.squaredLength=function(a){var x=a[0],y=a[1],z=a[2];return x*x+y*y+z*z};vec3.negate=function(out,a){out[0]=-a[0];out[1]=-a[1];out[2]=-a[2];return out};vec3.normalize=function(out,a){var x=a[0],y=a[1],z=a[2];var len=x*x+y*y+z*z;if(len>0){len=1/Math.sqrt(len);out[0]=a[0]*len;out[1]=a[1]*len;out[2]=a[2]*len}return out};vec3.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]};vec3.cross=function(out,a,b){var ax=a[0],ay=a[1],az=a[2],bx=b[0],by=b[1],bz=b[2];out[0]=ay*bz-az*by;out[1]=az*bx-ax*bz;out[2]=ax*by-ay*bx;return out};vec3.lerp=function(out,a,b,t){var ax=a[0],ay=a[1],az=a[2];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);out[2]=az+t*(b[2]-az);return out};vec3.transformMat4=function(out,a,m){var x=a[0],y=a[1],z=a[2];out[0]=m[0]*x+m[4]*y+m[8]*z+m[12];out[1]=m[1]*x+m[5]*y+m[9]*z+m[13];out[2]=m[2]*x+m[6]*y+m[10]*z+m[14];return out};vec3.transformQuat=function(out,a,q){var x=a[0],y=a[1],z=a[2],qx=q[0],qy=q[1],qz=q[2],qw=q[3],ix=qw*x+qy*z-qz*y,iy=qw*y+qz*x-qx*z,iz=qw*z+qx*y-qy*x,iw=-qx*x-qy*y-qz*z;out[0]=ix*qw+iw*-qx+iy*-qz-iz*-qy;out[1]=iy*qw+iw*-qy+iz*-qx-ix*-qz;out[2]=iz*qw+iw*-qz+ix*-qy-iy*-qx;return out};vec3.forEach=function(){var vec=new Float32Array(3);return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=3}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i<l;i+=stride){vec[0]=a[i];vec[1]=a[i+1];vec[2]=a[i+2];fn(vec,vec,arg);a[i]=vec[0];a[i+1]=vec[1];a[i+2]=vec[2]}return a}}();vec3.str=function(a){return"vec3("+a[0]+", "+a[1]+", "+a[2]+")"};if(typeof exports!=="undefined"){exports.vec3=vec3}var vec4={};if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}vec4.create=function(){return new Float32Array(4)};vec4.clone=function(a){var out=new Float32Array(4);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};vec4.fromValues=function(x,y,z,w){var out=new Float32Array(4);out[0]=x;out[1]=y;out[2]=z;out[3]=w;return out};vec4.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};vec4.set=function(out,x,y,z,w){out[0]=x;out[1]=y;out[2]=z;out[3]=w;return out};vec4.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];out[2]=a[2]+b[2];out[3]=a[3]+b[3];return out};vec4.sub=vec4.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];out[2]=a[2]-b[2];out[3]=a[3]-b[3];return out};vec4.mul=vec4.multiply=function(out,a,b){out[0]=a[0]*b[0];out[1]=a[1]*b[1];out[2]=a[2]*b[2];out[3]=a[3]*b[3];return out};vec4.div=vec4.divide=function(out,a,b){out[0]=a[0]/b[0];out[1]=a[1]/b[1];out[2]=a[2]/b[2];out[3]=a[3]/b[3];return out};vec4.min=function(out,a,b){out[0]=Math.min(a[0],b[0]);out[1]=Math.min(a[1],b[1]);out[2]=Math.min(a[2],b[2]);out[3]=Math.min(a[3],b[3]);return out};vec4.max=function(out,a,b){out[0]=Math.max(a[0],b[0]);out[1]=Math.max(a[1],b[1]);out[2]=Math.max(a[2],b[2]);out[3]=Math.max(a[3],b[3]);return out};vec4.scale=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;out[2]=a[2]*b;out[3]=a[3]*b;return out};vec4.dist=vec4.distance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2],w=b[3]-a[3];return Math.sqrt(x*x+y*y+z*z+w*w)};vec4.sqrDist=vec4.squaredDistance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2],w=b[3]-a[3];return x*x+y*y+z*z+w*w};vec4.len=vec4.length=function(a){var x=a[0],y=a[1],z=a[2],w=a[3];return Math.sqrt(x*x+y*y+z*z+w*w)};vec4.sqrLen=vec4.squaredLength=function(a){var x=a[0],y=a[1],z=a[2],w=a[3];return x*x+y*y+z*z+w*w};vec4.negate=function(out,a){out[0]=-a[0];out[1]=-a[1];out[2]=-a[2];out[3]=-a[3];return out};vec4.normalize=function(out,a){var x=a[0],y=a[1],z=a[2],w=a[3];var len=x*x+y*y+z*z+w*w;if(len>0){len=1/Math.sqrt(len);out[0]=a[0]*len;out[1]=a[1]*len;out[2]=a[2]*len;out[3]=a[3]*len}return out};vec4.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]+a[3]*b[3]};vec4.lerp=function(out,a,b,t){var ax=a[0],ay=a[1],az=a[2],aw=a[3];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);out[2]=az+t*(b[2]-az);out[3]=aw+t*(b[3]-aw);return out};vec4.transformMat4=function(out,a,m){var x=a[0],y=a[1],z=a[2],w=a[3];out[0]=m[0]*x+m[4]*y+m[8]*z+m[12]*w;out[1]=m[1]*x+m[5]*y+m[9]*z+m[13]*w;out[2]=m[2]*x+m[6]*y+m[10]*z+m[14]*w;out[3]=m[3]*x+m[7]*y+m[11]*z+m[15]*w;return out};vec4.transformQuat=function(out,a,q){var x=a[0],y=a[1],z=a[2],qx=q[0],qy=q[1],qz=q[2],qw=q[3],ix=qw*x+qy*z-qz*y,iy=qw*y+qz*x-qx*z,iz=qw*z+qx*y-qy*x,iw=-qx*x-qy*y-qz*z;out[0]=ix*qw+iw*-qx+iy*-qz-iz*-qy;out[1]=iy*qw+iw*-qy+iz*-qx-ix*-qz;out[2]=iz*qw+iw*-qz+ix*-qy-iy*-qx;return out};vec4.forEach=function(){var vec=new Float32Array(4);return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=4}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i<l;i+=stride){vec[0]=a[i];vec[1]=a[i+1];vec[2]=a[i+2];vec[3]=a[i+3];fn(vec,vec,arg);a[i]=vec[0];a[i+1]=vec[1];a[i+2]=vec[2];a[i+3]=vec[3]}return a}}();vec4.str=function(a){return"vec4("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"};if(typeof exports!=="undefined"){exports.vec4=vec4}var mat2={};var mat2Identity=new Float32Array([1,0,0,1]);if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}mat2.create=function(){return new Float32Array(mat2Identity)};mat2.clone=function(a){var out=new Float32Array(4);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};mat2.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};mat2.identity=function(out){out[0]=1;out[1]=0;out[2]=0;out[3]=1;return out};mat2.transpose=function(out,a){if(out===a){var a1=a[1];out[1]=a[2];out[2]=a1}else{out[0]=a[0];out[1]=a[2];out[2]=a[1];out[3]=a[3]}return out};mat2.invert=function(out,a){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],det=a0*a3-a2*a1;if(!det){return null}det=1/det;out[0]=a3*det;out[1]=-a1*det;out[2]=-a2*det;out[3]=a0*det;return out};mat2.adjoint=function(out,a){var a0=a[0];out[0]=a[3];out[1]=-a[1];out[2]=-a[2];out[3]=a0;return out};mat2.determinant=function(a){return a[0]*a[3]-a[2]*a[1]};mat2.mul=mat2.multiply=function(out,a,b){var a0=a[0],a1=a[1],a2=a[2],a3=a[3];var b0=b[0],b1=b[1],b2=b[2],b3=b[3];out[0]=a0*b0+a1*b2;out[1]=a0*b1+a1*b3;out[2]=a2*b0+a3*b2;out[3]=a2*b1+a3*b3;return out};mat2.rotate=function(out,a,rad){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],s=Math.sin(rad),c=Math.cos(rad);out[0]=a0*c+a1*s;out[1]=a0*-s+a1*c;out[2]=a2*c+a3*s;out[3]=a2*-s+a3*c;return out};mat2.scale=function(out,a,v){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],v0=v[0],v1=v[1];out[0]=a0*v0;out[1]=a1*v1;out[2]=a2*v0;out[3]=a3*v1;return out};mat2.str=function(a){return"mat2("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"};if(typeof exports!=="undefined"){exports.mat2=mat2}var mat3={};var mat3Identity=new Float32Array([1,0,0,0,1,0,0,0,1]);if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}mat3.create=function(){return new Float32Array(mat3Identity)};mat3.clone=function(a){var out=new Float32Array(9);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];return out};mat3.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];return out};mat3.identity=function(out){out[0]=1;out[1]=0;out[2]=0;out[3]=0;out[4]=1;out[5]=0;out[6]=0;out[7]=0;out[8]=1;return out};mat3.transpose=function(out,a){if(out===a){var a01=a[1],a02=a[2],a12=a[5];out[1]=a[3];out[2]=a[6];out[3]=a01;out[5]=a[7];out[6]=a02;out[7]=a12}else{out[0]=a[0];out[1]=a[3];out[2]=a[6];out[3]=a[1];out[4]=a[4];out[5]=a[7];out[6]=a[2];out[7]=a[5];out[8]=a[8]}return out};mat3.invert=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8],b01=a22*a11-a12*a21,b11=-a22*a10+a12*a20,b21=a21*a10-a11*a20,det=a00*b01+a01*b11+a02*b21;if(!det){return null}det=1/det;out[0]=b01*det;out[1]=(-a22*a01+a02*a21)*det;out[2]=(a12*a01-a02*a11)*det;out[3]=b11*det;out[4]=(a22*a00-a02*a20)*det;out[5]=(-a12*a00+a02*a10)*det;out[6]=b21*det;out[7]=(-a21*a00+a01*a20)*det;out[8]=(a11*a00-a01*a10)*det;return out};mat3.adjoint=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8];out[0]=a11*a22-a12*a21;out[1]=a02*a21-a01*a22;out[2]=a01*a12-a02*a11;out[3]=a12*a20-a10*a22;out[4]=a00*a22-a02*a20;out[5]=a02*a10-a00*a12;out[6]=a10*a21-a11*a20;out[7]=a01*a20-a00*a21;out[8]=a00*a11-a01*a10;return out};mat3.determinant=function(a){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8];return a00*(a22*a11-a12*a21)+a01*(-a22*a10+a12*a20)+a02*(a21*a10-a11*a20)};mat3.mul=mat3.multiply=function(out,a,b){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8],b00=b[0],b01=b[1],b02=b[2],b10=b[3],b11=b[4],b12=b[5],b20=b[6],b21=b[7],b22=b[8];out[0]=b00*a00+b01*a10+b02*a20;out[1]=b00*a01+b01*a11+b02*a21;out[2]=b00*a02+b01*a12+b02*a22;out[3]=b10*a00+b11*a10+b12*a20;out[4]=b10*a01+b11*a11+b12*a21;out[5]=b10*a02+b11*a12+b12*a22;out[6]=b20*a00+b21*a10+b22*a20;out[7]=b20*a01+b21*a11+b22*a21;out[8]=b20*a02+b21*a12+b22*a22;return out};mat3.str=function(a){return"mat3("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+", "+a[4]+", "+a[5]+", "+a[6]+", "+a[7]+", "+a[8]+")"};if(typeof exports!=="undefined"){exports.mat3=mat3}var mat4={};var mat4Identity=new Float32Array([1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]);if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}mat4.create=function(){return new Float32Array(mat4Identity)};mat4.clone=function(a){var out=new Float32Array(16);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];out[9]=a[9];out[10]=a[10];out[11]=a[11];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15];return out};mat4.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];out[9]=a[9];out[10]=a[10];out[11]=a[11];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15];return out};mat4.identity=function(out){out[0]=1;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=1;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=1;out[11]=0;out[12]=0;out[13]=0;out[14]=0;out[15]=1;return out};mat4.transpose=function(out,a){if(out===a){var a01=a[1],a02=a[2],a03=a[3],a12=a[6],a13=a[7],a23=a[11];out[1]=a[4];out[2]=a[8];out[3]=a[12];out[4]=a01;out[6]=a[9];out[7]=a[13];out[8]=a02;out[9]=a12;out[11]=a[14];out[12]=a03;out[13]=a13;out[14]=a23}else{out[0]=a[0];out[1]=a[4];out[2]=a[8];out[3]=a[12];out[4]=a[1];out[5]=a[5];out[6]=a[9];out[7]=a[13];out[8]=a[2];out[9]=a[6];out[10]=a[10];out[11]=a[14];out[12]=a[3];out[13]=a[7];out[14]=a[11];out[15]=a[15]}return out};mat4.invert=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15],b00=a00*a11-a01*a10,b01=a00*a12-a02*a10,b02=a00*a13-a03*a10,b03=a01*a12-a02*a11,b04=a01*a13-a03*a11,b05=a02*a13-a03*a12,b06=a20*a31-a21*a30,b07=a20*a32-a22*a30,b08=a20*a33-a23*a30,b09=a21*a32-a22*a31,b10=a21*a33-a23*a31,b11=a22*a33-a23*a32,det=b00*b11-b01*b10+b02*b09+b03*b08-b04*b07+b05*b06;if(!det){return null}det=1/det;out[0]=(a11*b11-a12*b10+a13*b09)*det;out[1]=(a02*b10-a01*b11-a03*b09)*det;out[2]=(a31*b05-a32*b04+a33*b03)*det;out[3]=(a22*b04-a21*b05-a23*b03)*det;out[4]=(a12*b08-a10*b11-a13*b07)*det;out[5]=(a00*b11-a02*b08+a03*b07)*det;out[6]=(a32*b02-a30*b05-a33*b01)*det;out[7]=(a20*b05-a22*b02+a23*b01)*det;out[8]=(a10*b10-a11*b08+a13*b06)*det;out[9]=(a01*b08-a00*b10-a03*b06)*det;out[10]=(a30*b04-a31*b02+a33*b00)*det;out[11]=(a21*b02-a20*b04-a23*b00)*det;out[12]=(a11*b07-a10*b09-a12*b06)*det;out[13]=(a00*b09-a01*b07+a02*b06)*det;out[14]=(a31*b01-a30*b03-a32*b00)*det;out[15]=(a20*b03-a21*b01+a22*b00)*det;return out};mat4.adjoint=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15];out[0]=a11*(a22*a33-a23*a32)-a21*(a12*a33-a13*a32)+a31*(a12*a23-a13*a22);out[1]=-(a01*(a22*a33-a23*a32)-a21*(a02*a33-a03*a32)+a31*(a02*a23-a03*a22));out[2]=a01*(a12*a33-a13*a32)-a11*(a02*a33-a03*a32)+a31*(a02*a13-a03*a12);out[3]=-(a01*(a12*a23-a13*a22)-a11*(a02*a23-a03*a22)+a21*(a02*a13-a03*a12));out[4]=-(a10*(a22*a33-a23*a32)-a20*(a12*a33-a13*a32)+a30*(a12*a23-a13*a22));out[5]=a00*(a22*a33-a23*a32)-a20*(a02*a33-a03*a32)+a30*(a02*a23-a03*a22);out[6]=-(a00*(a12*a33-a13*a32)-a10*(a02*a33-a03*a32)+a30*(a02*a13-a03*a12));out[7]=a00*(a12*a23-a13*a22)-a10*(a02*a23-a03*a22)+a20*(a02*a13-a03*a12);out[8]=a10*(a21*a33-a23*a31)-a20*(a11*a33-a13*a31)+a30*(a11*a23-a13*a21);out[9]=-(a00*(a21*a33-a23*a31)-a20*(a01*a33-a03*a31)+a30*(a01*a23-a03*a21));out[10]=a00*(a11*a33-a13*a31)-a10*(a01*a33-a03*a31)+a30*(a01*a13-a03*a11);out[11]=-(a00*(a11*a23-a13*a21)-a10*(a01*a23-a03*a21)+a20*(a01*a13-a03*a11));out[12]=-(a10*(a21*a32-a22*a31)-a20*(a11*a32-a12*a31)+a30*(a11*a22-a12*a21));out[13]=a00*(a21*a32-a22*a31)-a20*(a01*a32-a02*a31)+a30*(a01*a22-a02*a21);out[14]=-(a00*(a11*a32-a12*a31)-a10*(a01*a32-a02*a31)+a30*(a01*a12-a02*a11));out[15]=a00*(a11*a22-a12*a21)-a10*(a01*a22-a02*a21)+a20*(a01*a12-a02*a11);return out};mat4.determinant=function(a){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15],b00=a00*a11-a01*a10,b01=a00*a12-a02*a10,b02=a00*a13-a03*a10,b03=a01*a12-a02*a11,b04=a01*a13-a03*a11,b05=a02*a13-a03*a12,b06=a20*a31-a21*a30,b07=a20*a32-a22*a30,b08=a20*a33-a23*a30,b09=a21*a32-a22*a31,b10=a21*a33-a23*a31,b11=a22*a33-a23*a32;return b00*b11-b01*b10+b02*b09+b03*b08-b04*b07+b05*b06};mat4.mul=mat4.multiply=function(out,a,b){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15];var b0=b[0],b1=b[1],b2=b[2],b3=b[3];out[0]=b0*a00+b1*a10+b2*a20+b3*a30;out[1]=b0*a01+b1*a11+b2*a21+b3*a31;out[2]=b0*a02+b1*a12+b2*a22+b3*a32;out[3]=b0*a03+b1*a13+b2*a23+b3*a33;b0=b[4];b1=b[5];b2=b[6];b3=b[7];out[4]=b0*a00+b1*a10+b2*a20+b3*a30;out[5]=b0*a01+b1*a11+b2*a21+b3*a31;out[6]=b0*a02+b1*a12+b2*a22+b3*a32;out[7]=b0*a03+b1*a13+b2*a23+b3*a33;b0=b[8];b1=b[9];b2=b[10];b3=b[11];out[8]=b0*a00+b1*a10+b2*a20+b3*a30;out[9]=b0*a01+b1*a11+b2*a21+b3*a31;out[10]=b0*a02+b1*a12+b2*a22+b3*a32;out[11]=b0*a03+b1*a13+b2*a23+b3*a33;b0=b[12];b1=b[13];b2=b[14];b3=b[15];out[12]=b0*a00+b1*a10+b2*a20+b3*a30;out[13]=b0*a01+b1*a11+b2*a21+b3*a31;out[14]=b0*a02+b1*a12+b2*a22+b3*a32;out[15]=b0*a03+b1*a13+b2*a23+b3*a33;return out};mat4.translate=function(out,a,v){var x=v[0],y=v[1],z=v[2],a00,a01,a02,a03,a10,a11,a12,a13,a20,a21,a22,a23;if(a===out){out[12]=a[0]*x+a[4]*y+a[8]*z+a[12];out[13]=a[1]*x+a[5]*y+a[9]*z+a[13];out[14]=a[2]*x+a[6]*y+a[10]*z+a[14];out[15]=a[3]*x+a[7]*y+a[11]*z+a[15]}else{a00=a[0];a01=a[1];a02=a[2];a03=a[3];a10=a[4];a11=a[5];a12=a[6];a13=a[7];a20=a[8];a21=a[9];a22=a[10];a23=a[11];out[0]=a00;out[1]=a01;out[2]=a02;out[3]=a03;out[4]=a10;out[5]=a11;out[6]=a12;out[7]=a13;out[8]=a20;out[9]=a21;out[10]=a22;out[11]=a23;out[12]=a00*x+a10*y+a20*z+a[12];out[13]=a01*x+a11*y+a21*z+a[13];out[14]=a02*x+a12*y+a22*z+a[14];out[15]=a03*x+a13*y+a23*z+a[15]}return out};mat4.scale=function(out,a,v){var x=v[0],y=v[1],z=v[2];out[0]=a[0]*x;out[1]=a[1]*x;out[2]=a[2]*x;out[3]=a[3]*x;out[4]=a[4]*y;out[5]=a[5]*y;out[6]=a[6]*y;out[7]=a[7]*y;out[8]=a[8]*z;out[9]=a[9]*z;out[10]=a[10]*z;out[11]=a[11]*z;out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15];return out};mat4.rotate=function(out,a,rad,axis){var x=axis[0],y=axis[1],z=axis[2],len=Math.sqrt(x*x+y*y+z*z),s,c,t,a00,a01,a02,a03,a10,a11,a12,a13,a20,a21,a22,a23,b00,b01,b02,b10,b11,b12,b20,b21,b22;if(Math.abs(len)<GLMAT_EPSILON){return null}len=1/len;x*=len;y*=len;z*=len;s=Math.sin(rad);c=Math.cos(rad);t=1-c;a00=a[0];a01=a[1];a02=a[2];a03=a[3];a10=a[4];a11=a[5];a12=a[6];a13=a[7];a20=a[8];a21=a[9];a22=a[10];a23=a[11];b00=x*x*t+c;b01=y*x*t+z*s;b02=z*x*t-y*s;b10=x*y*t-z*s;b11=y*y*t+c;b12=z*y*t+x*s;b20=x*z*t+y*s;b21=y*z*t-x*s;b22=z*z*t+c;out[0]=a00*b00+a10*b01+a20*b02;out[1]=a01*b00+a11*b01+a21*b02;out[2]=a02*b00+a12*b01+a22*b02;out[3]=a03*b00+a13*b01+a23*b02;out[4]=a00*b10+a10*b11+a20*b12;out[5]=a01*b10+a11*b11+a21*b12;out[6]=a02*b10+a12*b11+a22*b12;out[7]=a03*b10+a13*b11+a23*b12;out[8]=a00*b20+a10*b21+a20*b22;out[9]=a01*b20+a11*b21+a21*b22;out[10]=a02*b20+a12*b21+a22*b22;out[11]=a03*b20+a13*b21+a23*b22;if(a!==out){out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}return out};mat4.rotateX=function(out,a,rad){var s=Math.sin(rad),c=Math.cos(rad),a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11];if(a!==out){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}out[4]=a10*c+a20*s;out[5]=a11*c+a21*s;out[6]=a12*c+a22*s;out[7]=a13*c+a23*s;out[8]=a20*c-a10*s;out[9]=a21*c-a11*s;out[10]=a22*c-a12*s;out[11]=a23*c-a13*s;return out};mat4.rotateY=function(out,a,rad){var s=Math.sin(rad),c=Math.cos(rad),a00=a[0],a01=a[1],a02=a[2],a03=a[3],a20=a[8],a21=a[9],a22=a[10],a23=a[11];if(a!==out){out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}out[0]=a00*c-a20*s;out[1]=a01*c-a21*s;out[2]=a02*c-a22*s;out[3]=a03*c-a23*s;out[8]=a00*s+a20*c;out[9]=a01*s+a21*c;out[10]=a02*s+a22*c;out[11]=a03*s+a23*c;return out};mat4.rotateZ=function(out,a,rad){var s=Math.sin(rad),c=Math.cos(rad),a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7];if(a!==out){out[8]=a[8];out[9]=a[9];out[10]=a[10];out[11]=a[11];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}out[0]=a00*c+a10*s;out[1]=a01*c+a11*s;out[2]=a02*c+a12*s;out[3]=a03*c+a13*s;out[4]=a10*c-a00*s;out[5]=a11*c-a01*s;out[6]=a12*c-a02*s;out[7]=a13*c-a03*s;return out};mat4.fromRotationTranslation=function(out,q,v){var x=q[0],y=q[1],z=q[2],w=q[3],x2=x+x,y2=y+y,z2=z+z,xx=x*x2,xy=x*y2,xz=x*z2,yy=y*y2,yz=y*z2,zz=z*z2,wx=w*x2,wy=w*y2,wz=w*z2;out[0]=1-(yy+zz);out[1]=xy+wz;out[2]=xz-wy;out[3]=0;out[4]=xy-wz;out[5]=1-(xx+zz);out[6]=yz+wx;out[7]=0;out[8]=xz+wy;out[9]=yz-wx;out[10]=1-(xx+yy);out[11]=0;out[12]=v[0];out[13]=v[1];out[14]=v[2];out[15]=1;return out};mat4.frustum=function(out,left,right,bottom,top,near,far){var rl=1/(right-left),tb=1/(top-bottom),nf=1/(near-far);out[0]=near*2*rl;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=near*2*tb;out[6]=0;out[7]=0;out[8]=(right+left)*rl;out[9]=(top+bottom)*tb;out[10]=(far+near)*nf;out[11]=-1;out[12]=0;out[13]=0;out[14]=far*near*2*nf;out[15]=0;return out};mat4.perspective=function(out,fovy,aspect,near,far){var f=1/Math.tan(fovy/2),nf=1/(near-far);out[0]=f/aspect;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=f;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=(far+near)*nf;out[11]=-1;out[12]=0;out[13]=0;out[14]=2*far*near*nf;out[15]=0;return out};mat4.ortho=function(out,left,right,bottom,top,near,far){var lr=1/(left-right),bt=1/(bottom-top),nf=1/(near-far);out[0]=-2*lr;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=-2*bt;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=2*nf;out[11]=0;out[12]=(left+right)*lr;out[13]=(top+bottom)*bt;out[14]=(far+near)*nf;out[15]=1;return out};mat4.lookAt=function(out,eye,center,up){var x0,x1,x2,y0,y1,y2,z0,z1,z2,len,eyex=eye[0],eyey=eye[1],eyez=eye[2],upx=up[0],upy=up[1],upz=up[2],centerx=center[0],centery=center[1],centerz=center[2];if(Math.abs(eyex-centerx)<GLMAT_EPSILON&&Math.abs(eyey-centery)<GLMAT_EPSILON&&Math.abs(eyez-centerz)<GLMAT_EPSILON){return mat4.identity(out)}z0=eyex-centerx;z1=eyey-centery;z2=eyez-centerz;len=1/Math.sqrt(z0*z0+z1*z1+z2*z2);z0*=len;z1*=len;z2*=len;x0=upy*z2-upz*z1;x1=upz*z0-upx*z2;x2=upx*z1-upy*z0;len=Math.sqrt(x0*x0+x1*x1+x2*x2);if(!len){x0=0;x1=0;x2=0}else{len=1/len;x0*=len;x1*=len;x2*=len}y0=z1*x2-z2*x1;y1=z2*x0-z0*x2;y2=z0*x1-z1*x0;len=Math.sqrt(y0*y0+y1*y1+y2*y2);if(!len){y0=0;y1=0;y2=0}else{len=1/len;y0*=len;y1*=len;y2*=len}out[0]=x0;out[1]=y0;out[2]=z0;out[3]=0;out[4]=x1;out[5]=y1;out[6]=z1;out[7]=0;out[8]=x2;out[9]=y2;out[10]=z2;out[11]=0;out[12]=-(x0*eyex+x1*eyey+x2*eyez);out[13]=-(y0*eyex+y1*eyey+y2*eyez);out[14]=-(z0*eyex+z1*eyey+z2*eyez);out[15]=1;return out};mat4.str=function(a){return"mat4("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+", "+a[4]+", "+a[5]+", "+a[6]+", "+a[7]+", "+a[8]+", "+a[9]+", "+a[10]+", "+a[11]+", "+a[12]+", "+a[13]+", "+a[14]+", "+a[15]+")"};if(typeof exports!=="undefined"){exports.mat4=mat4}var quat={};var quatIdentity=new Float32Array([0,0,0,1]);if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}quat.create=function(){return new Float32Array(quatIdentity)};quat.clone=vec4.clone;quat.fromValues=vec4.fromValues;quat.copy=vec4.copy;quat.set=vec4.set;quat.identity=function(out){out[0]=0;out[1]=0;out[2]=0;out[3]=1;return out};quat.setAxisAngle=function(out,axis,rad){rad=rad*.5;var s=Math.sin(rad);out[0]=s*axis[0];out[1]=s*axis[1];out[2]=s*axis[2];out[3]=Math.cos(rad);return out};quat.add=vec4.add;quat.mul=quat.multiply=function(out,a,b){var ax=a[0],ay=a[1],az=a[2],aw=a[3],bx=b[0],by=b[1],bz=b[2],bw=b[3];out[0]=ax*bw+aw*bx+ay*bz-az*by;out[1]=ay*bw+aw*by+az*bx-ax*bz;out[2]=az*bw+aw*bz+ax*by-ay*bx;out[3]=aw*bw-ax*bx-ay*by-az*bz;return out};quat.scale=vec4.scale;quat.rotateX=function(out,a,rad){rad*=.5;var ax=a[0],ay=a[1],az=a[2],aw=a[3],bx=Math.sin(rad),bw=Math.cos(rad);out[0]=ax*bw+aw*bx;out[1]=ay*bw+az*bx;out[2]=az*bw-ay*bx;out[3]=aw*bw-ax*bx;return out};quat.rotateY=function(out,a,rad){rad*=.5;var ax=a[0],ay=a[1],az=a[2],aw=a[3],by=Math.sin(rad),bw=Math.cos(rad);out[0]=ax*bw-az*by;out[1]=ay*bw+aw*by;out[2]=az*bw+ax*by;out[3]=aw*bw-ay*by;return out};quat.rotateZ=function(out,a,rad){rad*=.5;var ax=a[0],ay=a[1],az=a[2],aw=a[3],bz=Math.sin(rad),bw=Math.cos(rad);out[0]=ax*bw+ay*bz;out[1]=ay*bw-ax*bz;out[2]=az*bw+aw*bz;out[3]=aw*bw-az*bz;return out};quat.calculateW=function(out,a){var x=a[0],y=a[1],z=a[2];out[0]=x;out[1]=y;out[2]=z;out[3]=-Math.sqrt(Math.abs(1-x*x-y*y-z*z));return out};quat.dot=vec4.dot;quat.lerp=vec4.lerp;quat.slerp=function(out,a,b,t){var ax=a[0],ay=a[1],az=a[2],aw=a[3],bx=b[0],by=b[1],bz=b[2],bw=a[3];var cosHalfTheta=ax*bx+ay*by+az*bz+aw*bw,halfTheta,sinHalfTheta,ratioA,ratioB;if(Math.abs(cosHalfTheta)>=1){if(out!==a){out[0]=ax;out[1]=ay;out[2]=az;out[3]=aw}return out}halfTheta=Math.acos(cosHalfTheta);sinHalfTheta=Math.sqrt(1-cosHalfTheta*cosHalfTheta);if(Math.abs(sinHalfTheta)<.001){out[0]=ax*.5+bx*.5;out[1]=ay*.5+by*.5;out[2]=az*.5+bz*.5;out[3]=aw*.5+bw*.5;return out}ratioA=Math.sin((1-t)*halfTheta)/sinHalfTheta;ratioB=Math.sin(t*halfTheta)/sinHalfTheta;out[0]=ax*ratioA+bx*ratioB;out[1]=ay*ratioA+by*ratioB;out[2]=az*ratioA+bz*ratioB;out[3]=aw*ratioA+bw*ratioB;return out};quat.invert=function(out,a){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],dot=a0*a0+a1*a1+a2*a2+a3*a3,invDot=dot?1/dot:0;out[0]=-a0*invDot;out[1]=-a1*invDot;out[2]=-a2*invDot;out[3]=a3*invDot;return out};quat.conjugate=function(out,a){out[0]=-a[0];out[1]=-a[1];out[2]=-a[2];out[3]=a[3];return out};quat.len=quat.length=vec4.length;quat.sqrLen=quat.squaredLength=vec4.squaredLength;quat.normalize=vec4.normalize;quat.str=function(a){return"quat("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"};if(typeof exports!=="undefined"){exports.quat=quat}}(shim.exports)}()}()},{}],20:[function(require,module,exports){!function(){!function(){var root=this;var previousUnderscore=root._;var breaker={};var ArrayProto=Array.prototype,ObjProto=Object.prototype,FuncProto=Function.prototype;var push=ArrayProto.push,slice=ArrayProto.slice,concat=ArrayProto.concat,toString=ObjProto.toString,hasOwnProperty=ObjProto.hasOwnProperty;var nativeForEach=ArrayProto.forEach,nativeMap=ArrayProto.map,nativeReduce=ArrayProto.reduce,nativeReduceRight=ArrayProto.reduceRight,nativeFilter=ArrayProto.filter,nativeEvery=ArrayProto.every,nativeSome=ArrayProto.some,nativeIndexOf=ArrayProto.indexOf,nativeLastIndexOf=ArrayProto.lastIndexOf,nativeIsArray=Array.isArray,nativeKeys=Object.keys,nativeBind=FuncProto.bind;var _=function(obj){if(obj instanceof _)return obj;if(!(this instanceof _))return new _(obj);this._wrapped=obj};if(typeof exports!=="undefined"){if(typeof module!=="undefined"&&module.exports){exports=module.exports=_}exports._=_}else{root._=_}_.VERSION="1.4.4";var each=_.each=_.forEach=function(obj,iterator,context){if(obj==null)return;if(nativeForEach&&obj.forEach===nativeForEach){obj.forEach(iterator,context)}else if(obj.length===+obj.length){for(var i=0,l=obj.length;i<l;i++){if(iterator.call(context,obj[i],i,obj)===breaker)return}}else{for(var key in obj){if(_.has(obj,key)){if(iterator.call(context,obj[key],key,obj)===breaker)return}}}};_.map=_.collect=function(obj,iterator,context){var results=[];if(obj==null)return results;if(nativeMap&&obj.map===nativeMap)return obj.map(iterator,context);each(obj,function(value,index,list){results[results.length]=iterator.call(context,value,index,list)});return results};var reduceError="Reduce of empty array with no initial value";_.reduce=_.foldl=_.inject=function(obj,iterator,memo,context){var initial=arguments.length>2;if(obj==null)obj=[];if(nativeReduce&&obj.reduce===nativeReduce){if(context)iterator=_.bind(iterator,context);return initial?obj.reduce(iterator,memo):obj.reduce(iterator)}each(obj,function(value,index,list){if(!initial){memo=value;initial=true}else{memo=iterator.call(context,memo,value,index,list)}});if(!initial)throw new TypeError(reduceError);return memo};_.reduceRight=_.foldr=function(obj,iterator,memo,context){var initial=arguments.length>2;if(obj==null)obj=[];if(nativeReduceRight&&obj.reduceRight===nativeReduceRight){if(context)iterator=_.bind(iterator,context);return initial?obj.reduceRight(iterator,memo):obj.reduceRight(iterator)}var length=obj.length;if(length!==+length){var keys=_.keys(obj);length=keys.length}each(obj,function(value,index,list){index=keys?keys[--length]:--length;if(!initial){memo=obj[index];initial=true}else{memo=iterator.call(context,memo,obj[index],index,list)}});if(!initial)throw new TypeError(reduceError);return memo};_.find=_.detect=function(obj,iterator,context){var result;any(obj,function(value,index,list){if(iterator.call(context,value,index,list)){result=value;return true}});return result};_.filter=_.select=function(obj,iterator,context){var results=[];if(obj==null)return results;if(nativeFilter&&obj.filter===nativeFilter)return obj.filter(iterator,context);each(obj,function(value,index,list){if(iterator.call(context,value,index,list))results[results.length]=value});return results};_.reject=function(obj,iterator,context){return _.filter(obj,function(value,index,list){return!iterator.call(context,value,index,list)},context)};_.every=_.all=function(obj,iterator,context){iterator||(iterator=_.identity);var result=true;if(obj==null)return result;if(nativeEvery&&obj.every===nativeEvery)return obj.every(iterator,context);each(obj,function(value,index,list){if(!(result=result&&iterator.call(context,value,index,list)))return breaker});return!!result};var any=_.some=_.any=function(obj,iterator,context){iterator||(iterator=_.identity);var result=false;if(obj==null)return result;if(nativeSome&&obj.some===nativeSome)return obj.some(iterator,context);each(obj,function(value,index,list){if(result||(result=iterator.call(context,value,index,list)))return breaker});return!!result};_.contains=_.include=function(obj,target){if(obj==null)return false;if(nativeIndexOf&&obj.indexOf===nativeIndexOf)return obj.indexOf(target)!=-1;return any(obj,function(value){return value===target})};_.invoke=function(obj,method){var args=slice.call(arguments,2);var isFunc=_.isFunction(method);return _.map(obj,function(value){return(isFunc?method:value[method]).apply(value,args)})};_.pluck=function(obj,key){return _.map(obj,function(value){return value[key]})};_.where=function(obj,attrs,first){if(_.isEmpty(attrs))return first?null:[];return _[first?"find":"filter"](obj,function(value){for(var key in attrs){if(attrs[key]!==value[key])return false}return true})};_.findWhere=function(obj,attrs){return _.where(obj,attrs,true)};_.max=function(obj,iterator,context){if(!iterator&&_.isArray(obj)&&obj[0]===+obj[0]&&obj.length<65535){return Math.max.apply(Math,obj)}if(!iterator&&_.isEmpty(obj))return-Infinity;var result={computed:-Infinity,value:-Infinity};each(obj,function(value,index,list){var computed=iterator?iterator.call(context,value,index,list):value;computed>=result.computed&&(result={value:value,computed:computed})});return result.value};_.min=function(obj,iterator,context){if(!iterator&&_.isArray(obj)&&obj[0]===+obj[0]&&obj.length<65535){return Math.min.apply(Math,obj)}if(!iterator&&_.isEmpty(obj))return Infinity;var result={computed:Infinity,value:Infinity};each(obj,function(value,index,list){var computed=iterator?iterator.call(context,value,index,list):value;computed<result.computed&&(result={value:value,computed:computed})});return result.value};_.shuffle=function(obj){var rand;var index=0;var shuffled=[];each(obj,function(value){rand=_.random(index++);shuffled[index-1]=shuffled[rand];shuffled[rand]=value});return shuffled};var lookupIterator=function(value){return _.isFunction(value)?value:function(obj){return obj[value]}};_.sortBy=function(obj,value,context){var iterator=lookupIterator(value);return _.pluck(_.map(obj,function(value,index,list){return{value:value,index:index,criteria:iterator.call(context,value,index,list)}}).sort(function(left,right){var a=left.criteria;
+var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)return-1}return left.index<right.index?-1:1}),"value")};var group=function(obj,value,context,behavior){var result={};var iterator=lookupIterator(value||_.identity);each(obj,function(value,index){var key=iterator.call(context,value,index,obj);behavior(result,key,value)});return result};_.groupBy=function(obj,value,context){return group(obj,value,context,function(result,key,value){(_.has(result,key)?result[key]:result[key]=[]).push(value)})};_.countBy=function(obj,value,context){return group(obj,value,context,function(result,key){if(!_.has(result,key))result[key]=0;result[key]++})};_.sortedIndex=function(array,obj,iterator,context){iterator=iterator==null?_.identity:lookupIterator(iterator);var value=iterator.call(context,obj);var low=0,high=array.length;while(low<high){var mid=low+high>>>1;iterator.call(context,array[mid])<value?low=mid+1:high=mid}return low};_.toArray=function(obj){if(!obj)return[];if(_.isArray(obj))return slice.call(obj);if(obj.length===+obj.length)return _.map(obj,_.identity);return _.values(obj)};_.size=function(obj){if(obj==null)return 0;return obj.length===+obj.length?obj.length:_.keys(obj).length};_.first=_.head=_.take=function(array,n,guard){if(array==null)return void 0;return n!=null&&!guard?slice.call(array,0,n):array[0]};_.initial=function(array,n,guard){return slice.call(array,0,array.length-(n==null||guard?1:n))};_.last=function(array,n,guard){if(array==null)return void 0;if(n!=null&&!guard){return slice.call(array,Math.max(array.length-n,0))}else{return array[array.length-1]}};_.rest=_.tail=_.drop=function(array,n,guard){return slice.call(array,n==null||guard?1:n)};_.compact=function(array){return _.filter(array,_.identity)};var flatten=function(input,shallow,output){each(input,function(value){if(_.isArray(value)){shallow?push.apply(output,value):flatten(value,shallow,output)}else{output.push(value)}});return output};_.flatten=function(array,shallow){return flatten(array,shallow,[])};_.without=function(array){return _.difference(array,slice.call(arguments,1))};_.uniq=_.unique=function(array,isSorted,iterator,context){if(_.isFunction(isSorted)){context=iterator;iterator=isSorted;isSorted=false}var initial=iterator?_.map(array,iterator,context):array;var results=[];var seen=[];each(initial,function(value,index){if(isSorted?!index||seen[seen.length-1]!==value:!_.contains(seen,value)){seen.push(value);results.push(array[index])}});return results};_.union=function(){return _.uniq(concat.apply(ArrayProto,arguments))};_.intersection=function(array){var rest=slice.call(arguments,1);return _.filter(_.uniq(array),function(item){return _.every(rest,function(other){return 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result}};_.debounce=function(func,wait,immediate){var timeout,result;return function(){var context=this,args=arguments;var later=function(){timeout=null;if(!immediate)result=func.apply(context,args)};var callNow=immediate&&!timeout;clearTimeout(timeout);timeout=setTimeout(later,wait);if(callNow)result=func.apply(context,args);return result}};_.once=function(func){var ran=false,memo;return function(){if(ran)return memo;ran=true;memo=func.apply(this,arguments);func=null;return memo}};_.wrap=function(func,wrapper){return function(){var args=[func];push.apply(args,arguments);return wrapper.apply(this,args)}};_.compose=function(){var funcs=arguments;return function(){var args=arguments;for(var i=funcs.length-1;i>=0;i--){args=[funcs[i].apply(this,args)]}return args[0]}};_.after=function(times,func){if(times<=0)return func();return function(){if(--times<1){return func.apply(this,arguments)}}};_.keys=nativeKeys||function(obj){if(obj!==Object(obj))throw new TypeError("Invalid object");var keys=[];for(var key in obj)if(_.has(obj,key))keys[keys.length]=key;return keys};_.values=function(obj){var values=[];for(var key in obj)if(_.has(obj,key))values.push(obj[key]);return values};_.pairs=function(obj){var pairs=[];for(var key in obj)if(_.has(obj,key))pairs.push([key,obj[key]]);return pairs};_.invert=function(obj){var result={};for(var key in obj)if(_.has(obj,key))result[obj[key]]=key;return result};_.functions=_.methods=function(obj){var names=[];for(var key in obj){if(_.isFunction(obj[key]))names.push(key)}return names.sort()};_.extend=function(obj){each(slice.call(arguments,1),function(source){if(source){for(var prop in source){obj[prop]=source[prop]}}});return obj};_.pick=function(obj){var copy={};var keys=concat.apply(ArrayProto,slice.call(arguments,1));each(keys,function(key){if(key in obj)copy[key]=obj[key]});return copy};_.omit=function(obj){var copy={};var keys=concat.apply(ArrayProto,slice.call(arguments,1));for(var key in obj){if(!_.contains(keys,key))copy[key]=obj[key]}return copy};_.defaults=function(obj){each(slice.call(arguments,1),function(source){if(source){for(var prop in source){if(obj[prop]==null)obj[prop]=source[prop]}}});return obj};_.clone=function(obj){if(!_.isObject(obj))return obj;return _.isArray(obj)?obj.slice():_.extend({},obj)};_.tap=function(obj,interceptor){interceptor(obj);return obj};var eq=function(a,b,aStack,bStack){if(a===b)return a!==0||1/a==1/b;if(a==null||b==null)return a===b;if(a instanceof _)a=a._wrapped;if(b instanceof _)b=b._wrapped;var className=toString.call(a);if(className!=toString.call(b))return false;switch(className){case"[object String]":return a==String(b);case"[object Number]":return a!=+a?b!=+b:a==0?1/a==1/b:a==+b;case"[object Date]":case"[object Boolean]":return+a==+b;case"[object RegExp]":return a.source==b.source&&a.global==b.global&&a.multiline==b.multiline&&a.ignoreCase==b.ignoreCase}if(typeof a!="object"||typeof b!="object")return false;var length=aStack.length;while(length--){if(aStack[length]==a)return bStack[length]==b}aStack.push(a);bStack.push(b);var size=0,result=true;if(className=="[object Array]"){size=a.length;result=size==b.length;if(result){while(size--){if(!(result=eq(a[size],b[size],aStack,bStack)))break}}}else{var aCtor=a.constructor,bCtor=b.constructor;if(aCtor!==bCtor&&!(_.isFunction(aCtor)&&aCtor instanceof aCtor&&_.isFunction(bCtor)&&bCtor instanceof bCtor)){return false}for(var key in a){if(_.has(a,key)){size++;if(!(result=_.has(b,key)&&eq(a[key],b[key],aStack,bStack)))break}}if(result){for(key in b){if(_.has(b,key)&&!size--)break}result=!size}}aStack.pop();bStack.pop();return result};_.isEqual=function(a,b){return eq(a,b,[],[])};_.isEmpty=function(obj){if(obj==null)return true;if(_.isArray(obj)||_.isString(obj))return obj.length===0;for(var key in obj)if(_.has(obj,key))return false;return true};_.isElement=function(obj){return!!(obj&&obj.nodeType===1)};_.isArray=nativeIsArray||function(obj){return toString.call(obj)=="[object Array]"};_.isObject=function(obj){return obj===Object(obj)};each(["Arguments","Function","String","Number","Date","RegExp"],function(name){_["is"+name]=function(obj){return toString.call(obj)=="[object "+name+"]"}});if(!_.isArguments(arguments)){_.isArguments=function(obj){return!!(obj&&_.has(obj,"callee"))}}if(typeof/./!=="function"){_.isFunction=function(obj){return typeof obj==="function"}}_.isFinite=function(obj){return isFinite(obj)&&!isNaN(parseFloat(obj))};_.isNaN=function(obj){return _.isNumber(obj)&&obj!=+obj};_.isBoolean=function(obj){return obj===true||obj===false||toString.call(obj)=="[object Boolean]"};_.isNull=function(obj){return obj===null};_.isUndefined=function(obj){return obj===void 0};_.has=function(obj,key){return hasOwnProperty.call(obj,key)};_.noConflict=function(){root._=previousUnderscore;return this};_.identity=function(value){return value};_.times=function(n,iterator,context){var accum=Array(n);for(var i=0;i<n;i++)accum[i]=iterator.call(context,i);return accum};_.random=function(min,max){if(max==null){max=min;min=0}return min+Math.floor(Math.random()*(max-min+1))};var entityMap={escape:{"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#x27;","/":"&#x2F;"}};entityMap.unescape=_.invert(entityMap.escape);var entityRegexes={escape:new RegExp("["+_.keys(entityMap.escape).join("")+"]","g"),unescape:new RegExp("("+_.keys(entityMap.unescape).join("|")+")","g")};_.each(["escape","unescape"],function(method){_[method]=function(string){if(string==null)return"";return(""+string).replace(entityRegexes[method],function(match){return entityMap[method][match]})}});_.result=function(object,property){if(object==null)return null;var value=object[property];return _.isFunction(value)?value.call(object):value};_.mixin=function(obj){each(_.functions(obj),function(name){var func=_[name]=obj[name];_.prototype[name]=function(){var args=[this._wrapped];push.apply(args,arguments);return result.call(this,func.apply(_,args))}})};var idCounter=0;_.uniqueId=function(prefix){var id=++idCounter+"";return prefix?prefix+id:id};_.templateSettings={evaluate:/<%([\s\S]+?)%>/g,interpolate:/<%=([\s\S]+?)%>/g,escape:/<%-([\s\S]+?)%>/g};var noMatch=/(.)^/;var escapes={"'":"'","\\":"\\","\r":"r","\n":"n"," ":"t","\u2028":"u2028","\u2029":"u2029"};var escaper=/\\|'|\r|\n|\t|\u2028|\u2029/g;_.template=function(text,data,settings){var render;settings=_.defaults({},settings,_.templateSettings);var matcher=new RegExp([(settings.escape||noMatch).source,(settings.interpolate||noMatch).source,(settings.evaluate||noMatch).source].join("|")+"|$","g");var index=0;var source="__p+='";text.replace(matcher,function(match,escape,interpolate,evaluate,offset){source+=text.slice(index,offset).replace(escaper,function(match){return"\\"+escapes[match]});if(escape){source+="'+\n((__t=("+escape+"))==null?'':_.escape(__t))+\n'"}if(interpolate){source+="'+\n((__t=("+interpolate+"))==null?'':__t)+\n'"}if(evaluate){source+="';\n"+evaluate+"\n__p+='"}index=offset+match.length;return match});source+="';\n";if(!settings.variable)source="with(obj||{}){\n"+source+"}\n";source="var __t,__p='',__j=Array.prototype.join,"+"print=function(){__p+=__j.call(arguments,'');};\n"+source+"return __p;\n";try{render=new Function(settings.variable||"obj","_",source)}catch(e){e.source=source;throw e}if(data)return render(data,_);var template=function(data){return render.call(this,data,_)};template.source="function("+(settings.variable||"obj")+"){\n"+source+"}";return template};_.chain=function(obj){return _(obj).chain()};var result=function(obj){return this._chain?_(obj).chain():obj};_.mixin(_);each(["pop","push","reverse","shift","sort","splice","unshift"],function(name){var method=ArrayProto[name];_.prototype[name]=function(){var obj=this._wrapped;method.apply(obj,arguments);if((name=="shift"||name=="splice")&&obj.length===0)delete obj[0];return result.call(this,obj)}});each(["concat","join","slice"],function(name){var method=ArrayProto[name];_.prototype[name]=function(){return result.call(this,method.apply(this._wrapped,arguments))}});_.extend(_.prototype,{chain:function(){this._chain=true;return this},value:function(){return this._wrapped}})}.call(this)}()},{}],21:[function(require,module,exports){window.requestAnimFrame=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(callback){window.setTimeout(callback,1e3/60)}}();Leap=require("../lib/index")},{"../lib/index":8}]},{},[21]);
+
+
+/*
+ * Leap Motion integration for Reveal.js.
+ * James Sun  [sun16]
+ * Rory Hardy [gneatgeek]
+ */
+
+

From af5acd1aa2735833ec9f0104f1c16f97641f894c Mon Sep 17 00:00:00 2001
From: sun16 <crptone.sun16@gmail.com>
Date: Sat, 3 Aug 2013 22:36:11 -0500
Subject: [PATCH 02/13] Added gestures

Left, right, up, and down gestures.
Optional invert for gestures.
---
 plugin/leap/leap.js | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
index ee882422..3af73ce5 100644
--- a/plugin/leap/leap.js
+++ b/plugin/leap/leap.js
@@ -20,4 +20,35 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
  * Rory Hardy [gneatgeek]
  */
 
+(function () {
+  var controller = new Leap.Controller({enableGestures: true}),
+      config = Reveal.getConfig().leap ||
+        {
+          invert: false
+        };
 
+  controller.on('frame', function (frame) {
+    if (frame.gestures.length > 0) {
+      var gesture = frame.gestures[0];
+      //console.log(gesture);
+      var x = gesture.direction[0];
+      var y = gesture.direction[1];
+      if (gesture.state === 'start' && gesture.type === 'swipe') {
+        if (Math.abs(x) > Math.abs(y)) {
+          if (x > 0) {
+            config.invert ? Reveal.left() : Reveal.right();
+          } else {
+            config.invert ? Reveal.right() : Reveal.left();
+          }
+        } else {
+          if (y > 0) {
+            config.invert ? Reveal.down() : Reveal.up();
+          } else {
+            config.invert ? Reveal.up() : Reveal.down();
+          }
+        }
+      }
+    }
+  });
+  controller.connect();
+})();

From 70cade3732200f769f0d6c930c7dd14a94da7be2 Mon Sep 17 00:00:00 2001
From: Rory Hardy <rory.cronin-hardy@cerner.com>
Date: Sun, 4 Aug 2013 20:22:34 -0500
Subject: [PATCH 03/13] Updates to leap.js and index.html

Added timing code to limit gesture calls.
Added gesture to access the overview.
index.html includes the leap plugin
---
 index.html          |  6 ++++-
 plugin/leap/leap.js | 58 +++++++++++++++++++++++++++++++--------------
 2 files changed, 45 insertions(+), 19 deletions(-)

diff --git a/index.html b/index.html
index fab2780d..decc2944 100644
--- a/index.html
+++ b/index.html
@@ -359,6 +359,9 @@ function linkify( selector ) {
 				progress: true,
 				history: true,
 				center: true,
+				leap: {
+			    invert : true
+			  },
 
 				theme: Reveal.getQueryHash().theme, // available themes are in /css/theme
 				transition: Reveal.getQueryHash().transition || 'default', // default/cube/page/concave/zoom/linear/fade/none
@@ -370,7 +373,8 @@ function linkify( selector ) {
 					{ src: 'plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
 					{ src: 'plugin/highlight/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } },
 					{ src: 'plugin/zoom-js/zoom.js', async: true, condition: function() { return !!document.body.classList; } },
-					{ src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } }
+					{ src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } },
+					{ src: 'plugin/leap/leap.js', async: true, }
 					// { src: 'plugin/search/search.js', async: true, condition: function() { return !!document.body.classList; } }
 					// { src: 'plugin/remotes/remotes.js', async: true, condition: function() { return !!document.body.classList; } }
 				]
diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
index 3af73ce5..27dc517a 100644
--- a/plugin/leap/leap.js
+++ b/plugin/leap/leap.js
@@ -21,34 +21,56 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
  */
 
 (function () {
-  var controller = new Leap.Controller({enableGestures: true}),
-      config = Reveal.getConfig().leap ||
+  var controller  = new Leap.Controller({enableGestures: true}),
+      lastGesture = 0,
+      config      = Reveal.getConfig().leap ||
         {
           invert: false
-        };
+        },
+      now;
 
   controller.on('frame', function (frame) {
-    if (frame.gestures.length > 0) {
-      var gesture = frame.gestures[0];
-      //console.log(gesture);
-      var x = gesture.direction[0];
-      var y = gesture.direction[1];
-      if (gesture.state === 'start' && gesture.type === 'swipe') {
-        if (Math.abs(x) > Math.abs(y)) {
-          if (x > 0) {
-            config.invert ? Reveal.left() : Reveal.right();
+    now = new Date().getTime();
+
+    if( lastGesture === 0 ) {
+      lastGesture = now;
+    }
+
+    if ( (now - lastGesture) > 500 && frame.gestures.length > 0 ) {
+      var gesture = frame.gestures[0],
+          x       = gesture.direction[0],
+          y       = gesture.direction[1];
+
+      
+      if ( gesture.speed > 1000 && gesture.state === 'start' && gesture.type === 'swipe' ) {
+        if( frame.fingers.length > 1 ) {
+          if ( Math.abs(x) > Math.abs(y) ) {
+            if ( x > 0 ) {
+              config.invert ? Reveal.left() : Reveal.right();
+            } else {
+              config.invert ? Reveal.right() : Reveal.left();
+            }
+
+            lastGesture = now;
           } else {
-            config.invert ? Reveal.right() : Reveal.left();
+            if ( y > 0 ) {
+              config.invert ? Reveal.down() : Reveal.up();
+            } else {
+              config.invert ? Reveal.up() : Reveal.down();
+            }
           }
-        } else {
-          if (y > 0) {
-            config.invert ? Reveal.down() : Reveal.up();
-          } else {
-            config.invert ? Reveal.up() : Reveal.down();
+
+          lastGesture = now;
+        } else if( frame.hands.length == 2 ) {
+          if ( y > 0 ) {
+            Reveal.toggleOverview();
           }
+
+          lastGesture = now;
         }
       }
     }
   });
+
   controller.connect();
 })();

From 0e7bc4091ec7a870805f040e342732388db99560 Mon Sep 17 00:00:00 2001
From: Rory Hardy <rory.cronin-hardy@cerner.com>
Date: Sun, 4 Aug 2013 20:27:47 -0500
Subject: [PATCH 04/13] Minor updates Changed invert to naturalSwipe Removed
 invert rule from index.html Ensured that left/right swipes only work with 1
 hand present modified:   index.html modified:   plugin/leap/leap.js

---
 index.html          |  3 ---
 plugin/leap/leap.js | 12 ++++++------
 2 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/index.html b/index.html
index decc2944..9ee09411 100644
--- a/index.html
+++ b/index.html
@@ -359,9 +359,6 @@ function linkify( selector ) {
 				progress: true,
 				history: true,
 				center: true,
-				leap: {
-			    invert : true
-			  },
 
 				theme: Reveal.getQueryHash().theme, // available themes are in /css/theme
 				transition: Reveal.getQueryHash().transition || 'default', // default/cube/page/concave/zoom/linear/fade/none
diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
index 27dc517a..ad2e3db7 100644
--- a/plugin/leap/leap.js
+++ b/plugin/leap/leap.js
@@ -25,7 +25,7 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
       lastGesture = 0,
       config      = Reveal.getConfig().leap ||
         {
-          invert: false
+          naturalSwipe: true
         },
       now;
 
@@ -43,20 +43,20 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
 
       
       if ( gesture.speed > 1000 && gesture.state === 'start' && gesture.type === 'swipe' ) {
-        if( frame.fingers.length > 1 ) {
+        if( frame.hands.length === 1 && frame.fingers.length > 1 ) {
           if ( Math.abs(x) > Math.abs(y) ) {
             if ( x > 0 ) {
-              config.invert ? Reveal.left() : Reveal.right();
+              config.naturalSwipe ? Reveal.left() : Reveal.right();
             } else {
-              config.invert ? Reveal.right() : Reveal.left();
+              config.naturalSwipe ? Reveal.right() : Reveal.left();
             }
 
             lastGesture = now;
           } else {
             if ( y > 0 ) {
-              config.invert ? Reveal.down() : Reveal.up();
+              config.naturalSwipe ? Reveal.down() : Reveal.up();
             } else {
-              config.invert ? Reveal.up() : Reveal.down();
+              config.naturalSwipe ? Reveal.up() : Reveal.down();
             }
           }
 

From a06c84e42a0a90dafea063abb6a40419610100a1 Mon Sep 17 00:00:00 2001
From: Rory Hardy <rory.cronin-hardy@cerner.com>
Date: Mon, 5 Aug 2013 12:43:07 -0500
Subject: [PATCH 05/13] Removed timing code. When used correctly, the 1/2
 second delay is uncessary and may yield undesireable results. modified:  
 plugin/leap/leap.js

---
 plugin/leap/leap.js | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
index ad2e3db7..97375290 100644
--- a/plugin/leap/leap.js
+++ b/plugin/leap/leap.js
@@ -22,21 +22,14 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
 
 (function () {
   var controller  = new Leap.Controller({enableGestures: true}),
-      lastGesture = 0,
       config      = Reveal.getConfig().leap ||
         {
           naturalSwipe: true
-        },
-      now;
+        };
 
   controller.on('frame', function (frame) {
-    now = new Date().getTime();
 
-    if( lastGesture === 0 ) {
-      lastGesture = now;
-    }
-
-    if ( (now - lastGesture) > 500 && frame.gestures.length > 0 ) {
+    if ( frame.gestures.length > 0 ) {
       var gesture = frame.gestures[0],
           x       = gesture.direction[0],
           y       = gesture.direction[1];
@@ -50,8 +43,6 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
             } else {
               config.naturalSwipe ? Reveal.right() : Reveal.left();
             }
-
-            lastGesture = now;
           } else {
             if ( y > 0 ) {
               config.naturalSwipe ? Reveal.down() : Reveal.up();
@@ -59,14 +50,10 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
               config.naturalSwipe ? Reveal.up() : Reveal.down();
             }
           }
-
-          lastGesture = now;
         } else if( frame.hands.length == 2 ) {
           if ( y > 0 ) {
             Reveal.toggleOverview();
           }
-
-          lastGesture = now;
         }
       }
     }

From dbcbc7aa699452f77d1c4561318b72180b3273af Mon Sep 17 00:00:00 2001
From: Rory Hardy <rory.cronin-hardy@cerner.com>
Date: Mon, 5 Aug 2013 22:41:04 -0500
Subject: [PATCH 06/13] Added pointer and tweaked the code modified:  
 css/reveal.css modified:   css/reveal.min.css modified:   plugin/leap/leap.js

---
 css/reveal.css      |  9 +++++
 css/reveal.min.css  |  8 ++++-
 plugin/leap/leap.js | 80 ++++++++++++++++++++++++++++++++++++---------
 3 files changed, 81 insertions(+), 16 deletions(-)

diff --git a/css/reveal.css b/css/reveal.css
index ad55cf86..b88815b8 100644
--- a/css/reveal.css
+++ b/css/reveal.css
@@ -1605,3 +1605,12 @@ body {
 }
 
 
+/*********************************************
+ * LEAP PLUGIN
+ *********************************************/
+
+#leap {
+  position: absolute; 
+  z-index: 50;
+  visibility: hidden;
+}
diff --git a/css/reveal.min.css b/css/reveal.min.css
index 874eda98..bd805e4c 100644
--- a/css/reveal.min.css
+++ b/css/reveal.min.css
@@ -4,4 +4,10 @@
  * MIT licensed
  *
  * Copyright (C) 2013 Hakim El Hattab, http://hakim.se
- */ html,body,.reveal div,.reveal span,.reveal applet,.reveal object,.reveal iframe,.reveal h1,.reveal h2,.reveal h3,.reveal h4,.reveal h5,.reveal h6,.reveal p,.reveal blockquote,.reveal pre,.reveal a,.reveal abbr,.reveal acronym,.reveal address,.reveal big,.reveal cite,.reveal code,.reveal del,.reveal dfn,.reveal em,.reveal img,.reveal ins,.reveal kbd,.reveal q,.reveal s,.reveal samp,.reveal small,.reveal strike,.reveal strong,.reveal sub,.reveal sup,.reveal tt,.reveal var,.reveal b,.reveal u,.reveal i,.reveal center,.reveal dl,.reveal dt,.reveal dd,.reveal ol,.reveal ul,.reveal li,.reveal fieldset,.reveal form,.reveal label,.reveal legend,.reveal table,.reveal caption,.reveal tbody,.reveal tfoot,.reveal thead,.reveal tr,.reveal th,.reveal td,.reveal article,.reveal aside,.reveal canvas,.reveal details,.reveal embed,.reveal figure,.reveal figcaption,.reveal footer,.reveal header,.reveal hgroup,.reveal menu,.reveal nav,.reveal output,.reveal ruby,.reveal section,.reveal 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.progress,.zoomed .reveal .controls{opacity:0}.zoomed .reveal .roll span{background:0}.zoomed .reveal .roll span:after{visibility:hidden}
+
+ #leap {
+  position: absolute; 
+  z-index: 50;
+  visibility: hidden;
+}
diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
index 97375290..ac1c26e7 100644
--- a/plugin/leap/leap.js
+++ b/plugin/leap/leap.js
@@ -22,27 +22,75 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
 
 (function () {
   var controller  = new Leap.Controller({enableGestures: true}),
-      config      = Reveal.getConfig().leap ||
-        {
-          naturalSwipe: true
-        };
+      leapConfig  = Reveal.getConfig().leap,
+      leapDOM     = document.createElement('div'),
+      body        = document.body,
+      config      = {
+        naturalSwipe   : true,
+        pointerDefault : 15,
+        pointerColor   : '#00aaff',
+        pointerOpacity : 0.75
+      };
+
+      // Merge user defined settings with defaults
+      if ( leapConfig ) {
+        for (key in leapConfig) {
+          config[key] = leapConfig[key];
+        }
+      }
+
+      leapDOM.id = 'leap';
+
+      leapDOM.style.filter          = 'alpha(opacity="'+ config.pointerOpacity +'")';
+      leapDOM.style.opacity         = config.pointerOpacity;
+      leapDOM.style.backgroundColor = config.pointerColor;
+
+      body.appendChild(leapDOM);
 
   controller.on('frame', function (frame) {
 
-    if ( frame.gestures.length > 0 ) {
-      var gesture = frame.gestures[0],
-          x       = gesture.direction[0],
-          y       = gesture.direction[1];
+    // Pointer code
+    if ( frame.hands.length === 1 && frame.fingers.length === 1 ) {
+      var size  =  -2 * frame.hands[0].palmPosition[2];
 
-      
-      if ( gesture.speed > 1000 && gesture.state === 'start' && gesture.type === 'swipe' ) {
-        if( frame.hands.length === 1 && frame.fingers.length > 1 ) {
+      if ( size < config.pointerDefault ) {
+        size = config.pointerDefault
+      }
+
+      leapDOM.style.bottom =
+        frame.hands[0].palmPosition[1] * (body.offsetHeight / 100) - body.offsetHeight + 'px';
+
+      leapDOM.style.left =
+        frame.hands[0].palmPosition[0] * (body.offsetWidth / 100) + (body.offsetWidth / 2) + 'px';
+
+      leapDOM.style.visibility   = 'visible';
+      leapDOM.style.width        = size     + 'px';
+      leapDOM.style.height       = size     + 'px';
+      leapDOM.style.borderRadius = size - 5 + 'px';
+    } else {
+      // Hide pointer on exit
+      leapDOM.style.visibility = 'hidden';
+    }
+    
+    // Gestures
+    if ( frame.gestures.length > 0 ) {
+      var gesture = frame.gestures[0];
+
+      // One hand gestures
+      if( frame.hands.length === 1 ) {
+        // Swipe gestures. 2+ fingers.
+        if ( frame.fingers.length > 1 && gesture.speed > 1000 && gesture.state === 'start' && gesture.type === 'swipe' ) {
+          var x = gesture.direction[0],
+              y = gesture.direction[1];
+
+          // Left/right swipe gestures
           if ( Math.abs(x) > Math.abs(y) ) {
             if ( x > 0 ) {
               config.naturalSwipe ? Reveal.left() : Reveal.right();
             } else {
               config.naturalSwipe ? Reveal.right() : Reveal.left();
             }
+          // Up/down swipe gestures
           } else {
             if ( y > 0 ) {
               config.naturalSwipe ? Reveal.down() : Reveal.up();
@@ -50,10 +98,12 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
               config.naturalSwipe ? Reveal.up() : Reveal.down();
             }
           }
-        } else if( frame.hands.length == 2 ) {
-          if ( y > 0 ) {
-            Reveal.toggleOverview();
-          }
+        }
+        // Two hand gestures
+      } else if( frame.hands.length == 2 ) {
+        // All upwards 2 hand gestures = toggle overview
+        if ( gesture.direction[1] > 0 ) {
+          Reveal.toggleOverview();
         }
       }
     }

From 32865b43f8fd9cbf00733c59f171c11c39d8c93c Mon Sep 17 00:00:00 2001
From: Rory Hardy <rory.cronin-hardy@cerner.com>
Date: Mon, 5 Aug 2013 22:49:39 -0500
Subject: [PATCH 07/13] Put the timing code back in.

Occasionally gestures were fired twice. This helps prevent that.
modified:   plugin/leap/leap.js
---
 plugin/leap/leap.js | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
index ac1c26e7..62a30fcf 100644
--- a/plugin/leap/leap.js
+++ b/plugin/leap/leap.js
@@ -25,12 +25,14 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
       leapConfig  = Reveal.getConfig().leap,
       leapDOM     = document.createElement('div'),
       body        = document.body,
+      lastGesture = 0,
       config      = {
         naturalSwipe   : true,
         pointerDefault : 15,
         pointerColor   : '#00aaff',
         pointerOpacity : 0.75
-      };
+      },
+      now;
 
       // Merge user defined settings with defaults
       if ( leapConfig ) {
@@ -48,6 +50,12 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
       body.appendChild(leapDOM);
 
   controller.on('frame', function (frame) {
+    // Timing code to rate limit gesture execution
+    now = new Date().getTime();
+
+    if( lastGesture === 0 ) {
+      lastGesture = now;
+    }
 
     // Pointer code
     if ( frame.hands.length === 1 && frame.fingers.length === 1 ) {
@@ -73,13 +81,13 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
     }
     
     // Gestures
-    if ( frame.gestures.length > 0 ) {
+    if ( (now - lastGesture) > 500 && frame.gestures.length > 0 ) {
       var gesture = frame.gestures[0];
 
       // One hand gestures
       if( frame.hands.length === 1 ) {
         // Swipe gestures. 2+ fingers.
-        if ( frame.fingers.length > 1 && gesture.speed > 1000 && gesture.state === 'start' && gesture.type === 'swipe' ) {
+        if ( frame.fingers.length > 1 && gesture.speed > 1000 && gesture.type === 'swipe' ) {
           var x = gesture.direction[0],
               y = gesture.direction[1];
 
@@ -90,6 +98,8 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
             } else {
               config.naturalSwipe ? Reveal.right() : Reveal.left();
             }
+
+            lastGesture = now;
           // Up/down swipe gestures
           } else {
             if ( y > 0 ) {
@@ -97,6 +107,8 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
             } else {
               config.naturalSwipe ? Reveal.up() : Reveal.down();
             }
+
+            lastGesture = now;
           }
         }
         // Two hand gestures
@@ -105,6 +117,8 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
         if ( gesture.direction[1] > 0 ) {
           Reveal.toggleOverview();
         }
+
+        lastGesture = now;
       }
     }
   });

From 36a4f56f6253db7d2624686909979f97690776f4 Mon Sep 17 00:00:00 2001
From: Rory Hardy <rory.cronin-hardy@cerner.com>
Date: Mon, 5 Aug 2013 23:36:07 -0500
Subject: [PATCH 08/13] Minor updates modified:   css/reveal.min.css modified: 
  plugin/leap/leap.js

---
 css/reveal.min.css  |  8 +-----
 plugin/leap/leap.js | 65 ++++++++++++++++++++++++---------------------
 2 files changed, 36 insertions(+), 37 deletions(-)

diff --git a/css/reveal.min.css b/css/reveal.min.css
index bd805e4c..2ba3965a 100644
--- a/css/reveal.min.css
+++ b/css/reveal.min.css
@@ -4,10 +4,4 @@
  * MIT licensed
  *
  * Copyright (C) 2013 Hakim El Hattab, http://hakim.se
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summary,.reveal time,.reveal mark,.reveal audio,video{margin:0;padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline}.reveal article,.reveal aside,.reveal details,.reveal figcaption,.reveal figure,.reveal footer,.reveal header,.reveal hgroup,.reveal menu,.reveal nav,.reveal section{display:block}html,body{width:100%;height:100%;overflow:hidden}body{position:relative;line-height:1}::selection{background:#FF5E99;color:#fff;text-shadow:none}.reveal h1,.reveal h2,.reveal h3,.reveal h4,.reveal h5,.reveal h6{-webkit-hyphens:auto;-moz-hyphens:auto;hyphens:auto;word-wrap:break-word;line-height:1}.reveal h1{font-size:3.77em}.reveal h2{font-size:2.11em}.reveal h3{font-size:1.55em}.reveal h4{font-size:1em}.reveal .slides section .fragment{opacity:0;-webkit-transition:all .2s ease;-moz-transition:all .2s ease;-ms-transition:all .2s ease;-o-transition:all .2s ease;transition:all .2s ease}.reveal .slides section .fragment.visible{opacity:1}.reveal .slides section 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diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
index 62a30fcf..072f73da 100644
--- a/plugin/leap/leap.js
+++ b/plugin/leap/leap.js
@@ -7,13 +7,15 @@
  * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Version 0.2.0 - http://js.leapmotion.com/0.2.0/leap.min.js
+ * Grab latest versions from http://js.leapmotion.com/
  */
 
 !function(e,t,n){function i(n,s){if(!t[n]){if(!e[n]){var o=typeof require=="function"&&require;if(!s&&o)return o(n,!0);if(r)return r(n,!0);throw new Error("Cannot find module '"+n+"'")}var u=t[n]={exports:{}};e[n][0].call(u.exports,function(t){var r=e[n][1][t];return i(r?r:t)},u,u.exports)}return t[n].exports}var r=typeof require=="function"&&require;for(var s=0;s<n.length;s++)i(n[s]);return i}({1:[function(require,module,exports){var chooseProtocol=require("./protocol").chooseProtocol,EventEmitter=require("events").EventEmitter,_=require("underscore");var BaseConnection=module.exports=function(opts){this.opts=_.defaults(opts||{},{host:"127.0.0.1",enableGestures:false,port:6437,enableHeartbeat:true,heartbeatInterval:100,requestProtocolVersion:3});this.host=opts.host;this.port=opts.port;this.on("ready",function(){this.enableGestures(this.opts.enableGestures);if(this.opts.enableHeartbeat)this.startHeartbeat()});this.on("disconnect",function(){if(this.opts.enableHeartbeat)this.stopHeartbeat()});this.heartbeatTimer=null};BaseConnection.prototype.getUrl=function(){return"ws://"+this.host+":"+this.port+"/v"+this.opts.requestProtocolVersion+".json"};BaseConnection.prototype.sendHeartbeat=function(){if(this.protocol){this.setHeartbeatState(true);this.protocol.sendHeartbeat(this)}};BaseConnection.prototype.handleOpen=function(){this.emit("connect")};BaseConnection.prototype.enableGestures=function(enabled){this.gesturesEnabled=enabled?true:false;this.send(this.protocol.encode({enableGestures:this.gesturesEnabled}))};BaseConnection.prototype.handleClose=function(){this.disconnect();this.startReconnection()};BaseConnection.prototype.startReconnection=function(){var connection=this;setTimeout(function(){connection.connect()},1e3)};BaseConnection.prototype.disconnect=function(){if(!this.socket)return;this.socket.close();delete this.socket;delete this.protocol;this.emit("disconnect")};BaseConnection.prototype.handleData=function(data){var message=JSON.parse(data);var messageEvent;if(this.protocol===undefined){messageEvent=this.protocol=chooseProtocol(message);this.emit("ready")}else{messageEvent=this.protocol(message)}this.emit(messageEvent.type,messageEvent)};BaseConnection.prototype.connect=function(){if(this.socket)return;this.socket=this.setupSocket();return true};BaseConnection.prototype.send=function(data){this.socket.send(data)};BaseConnection.prototype.stopHeartbeat=function(){if(!this.heartbeatTimer)return;clearInterval(this.heartbeatTimer);delete this.heartbeatTimer;this.setHeartbeatState(false)};BaseConnection.prototype.setHeartbeatState=function(state){if(this.heartbeatState===state)return;this.heartbeatState=state;this.emit(this.heartbeatState?"focus":"blur")};_.extend(BaseConnection.prototype,EventEmitter.prototype)},{"./protocol":12,events:17,underscore:20}],2:[function(require,module,exports){var CircularBuffer=module.exports=function(size){this.pos=0;this._buf=[];this.size=size};CircularBuffer.prototype.get=function(i){if(i==undefined)i=0;if(i>=this.size)return undefined;if(i>=this._buf.length)return undefined;return this._buf[(this.pos-i-1)%this.size]};CircularBuffer.prototype.push=function(o){this._buf[this.pos%this.size]=o;return this.pos++}},{}],3:[function(require,module,exports){var Connection=module.exports=require("./base_connection");Connection.prototype.setupSocket=function(){var connection=this;var socket=new WebSocket(this.getUrl());socket.onopen=function(){connection.handleOpen()};socket.onmessage=function(message){connection.handleData(message.data)};socket.onclose=function(){connection.handleClose()};return socket};Connection.prototype.startHeartbeat=function(){if(!this.protocol.sendHeartbeat||this.heartbeatTimer)return;var connection=this;var propertyName=null;if(typeof document.hidden!=="undefined"){propertyName="hidden"}else if(typeof document.mozHidden!=="undefined"){propertyName="mozHidden"}else if(typeof document.msHidden!=="undefined"){propertyName="msHidden"}else if(typeof document.webkitHidden!=="undefined"){propertyName="webkitHidden"}else{propertyName=undefined}var windowVisible=true;var focusListener=window.addEventListener("focus",function(e){windowVisible=true});var blurListener=window.addEventListener("blur",function(e){windowVisible=false});this.on("disconnect",function(){if(connection.heartbeatTimer){clearTimeout(connection.heartbeatTimer);delete connection.heartbeatTimer}window.removeEventListener(focusListener);window.removeEventListener(blurListener)});this.heartbeatTimer=setInterval(function(){var isVisible=propertyName===undefined?true:document[propertyName]===false;if(isVisible&&windowVisible){connection.sendHeartbeat()}else{connection.setHeartbeatState(false)}},this.opts.heartbeatInterval)}},{"./base_connection":1}],4:[function(require,module,exports){!function(process){var Frame=require("./frame"),CircularBuffer=require("./circular_buffer"),Pipeline=require("./pipeline"),EventEmitter=require("events").EventEmitter,gestureListener=require("./gesture").gestureListener,_=require("underscore");var Controller=module.exports=function(opts){var inNode=typeof process!=="undefined"&&process.title==="node";opts=_.defaults(opts||{},{inNode:inNode});this.inNode=opts.inNode;opts=_.defaults(opts||{},{frameEventName:this.useAnimationLoop()?"animationFrame":"deviceFrame",supressAnimationLoop:false});this.supressAnimationLoop=opts.supressAnimationLoop;this.frameEventName=opts.frameEventName;this.history=new CircularBuffer(200);this.lastFrame=Frame.Invalid;this.lastValidFrame=Frame.Invalid;this.lastConnectionFrame=Frame.Invalid;this.accumulatedGestures=[];if(opts.connectionType===undefined){this.connectionType=this.inBrowser()?require("./connection"):require("./node_connection")}else{this.connectionType=opts.connectionType}this.connection=new this.connectionType(opts);this.setupConnectionEvents()};Controller.prototype.gesture=function(type,cb){var creator=gestureListener(this,type);if(cb!==undefined){creator.stop(cb)}return creator};Controller.prototype.inBrowser=function(){return!this.inNode};Controller.prototype.useAnimationLoop=function(){return this.inBrowser()&&typeof chrome==="undefined"};Controller.prototype.connect=function(){var controller=this;if(this.connection.connect()&&this.inBrowser()&&!controller.supressAnimationLoop){var callback=function(){controller.emit("animationFrame",controller.lastConnectionFrame);window.requestAnimFrame(callback)};window.requestAnimFrame(callback)}};Controller.prototype.disconnect=function(){this.connection.disconnect()};Controller.prototype.frame=function(num){return this.history.get(num)||Frame.Invalid};Controller.prototype.loop=function(callback){switch(callback.length){case 1:this.on(this.frameEventName,callback);break;case 2:var controller=this;var scheduler=null;var immediateRunnerCallback=function(frame){callback(frame,function(){if(controller.lastFrame!=frame){immediateRunnerCallback(controller.lastFrame)}else{controller.once(controller.frameEventName,immediateRunnerCallback)}})};this.once(this.frameEventName,immediateRunnerCallback);break}this.connect()};Controller.prototype.addStep=function(step){if(!this.pipeline)this.pipeline=new Pipeline(this);this.pipeline.addStep(step)};Controller.prototype.processFrame=function(frame){if(frame.gestures){this.accumulatedGestures=this.accumulatedGestures.concat(frame.gestures)}if(this.pipeline){frame=this.pipeline.run(frame);if(!frame)frame=Frame.Invalid}this.lastConnectionFrame=frame;this.emit("deviceFrame",frame)};Controller.prototype.processFinishedFrame=function(frame){this.lastFrame=frame;if(frame.valid){this.lastValidFrame=frame}frame.controller=this;frame.historyIdx=this.history.push(frame);if(frame.gestures){frame.gestures=this.accumulatedGestures;this.accumulatedGestures=[];for(var gestureIdx=0;gestureIdx!=frame.gestures.length;gestureIdx++){this.emit("gesture",frame.gestures[gestureIdx],frame)}}this.emit("frame",frame)};Controller.prototype.setupConnectionEvents=function(){var controller=this;this.connection.on("frame",function(frame){controller.processFrame(frame)});this.on(this.frameEventName,function(frame){controller.processFinishedFrame(frame)});this.connection.on("disconnect",function(){controller.emit("disconnect")});this.connection.on("ready",function(){controller.emit("ready")});this.connection.on("connect",function(){controller.emit("connect")});this.connection.on("focus",function(){controller.emit("focus")});this.connection.on("blur",function(){controller.emit("blur")});this.connection.on("protocol",function(protocol){controller.emit("protocol",protocol)});this.connection.on("deviceConnect",function(evt){controller.emit(evt.state?"deviceConnected":"deviceDisconnected")})};_.extend(Controller.prototype,EventEmitter.prototype)}(require("__browserify_process"))},{"./circular_buffer":2,"./connection":3,"./frame":5,"./gesture":6,"./node_connection":16,"./pipeline":10,__browserify_process:18,events:17,underscore:20}],5:[function(require,module,exports){var Hand=require("./hand"),Pointable=require("./pointable"),createGesture=require("./gesture").createGesture,glMatrix=require("gl-matrix"),mat3=glMatrix.mat3,vec3=glMatrix.vec3,InteractionBox=require("./interaction_box"),_=require("underscore");var Frame=module.exports=function(data){this.valid=true;this.id=data.id;this.timestamp=data.timestamp;this.hands=[];this.handsMap={};this.pointables=[];this.tools=[];this.fingers=[];if(data.interactionBox){this.interactionBox=new InteractionBox(data.interactionBox)}this.gestures=[];this.pointablesMap={};this._translation=data.t;this._rotation=_.flatten(data.r);this._scaleFactor=data.s;this.data=data;this.type="frame";this.currentFrameRate=data.currentFrameRate;var handMap={};for(var handIdx=0,handCount=data.hands.length;handIdx!=handCount;handIdx++){var hand=new Hand(data.hands[handIdx]);hand.frame=this;this.hands.push(hand);this.handsMap[hand.id]=hand;handMap[hand.id]=handIdx}for(var pointableIdx=0,pointableCount=data.pointables.length;pointableIdx!=pointableCount;pointableIdx++){var pointable=new Pointable(data.pointables[pointableIdx]);pointable.frame=this;this.pointables.push(pointable);this.pointablesMap[pointable.id]=pointable;(pointable.tool?this.tools:this.fingers).push(pointable);if(pointable.handId!==undefined&&handMap.hasOwnProperty(pointable.handId)){var hand=this.hands[handMap[pointable.handId]];hand.pointables.push(pointable);(pointable.tool?hand.tools:hand.fingers).push(pointable)}}if(data.gestures){for(var gestureIdx=0,gestureCount=data.gestures.length;gestureIdx!=gestureCount;gestureIdx++){this.gestures.push(createGesture(data.gestures[gestureIdx]))}}};Frame.prototype.tool=function(id){var pointable=this.pointable(id);return pointable.tool?pointable:Pointable.Invalid};Frame.prototype.pointable=function(id){return this.pointablesMap[id]||Pointable.Invalid};Frame.prototype.finger=function(id){var pointable=this.pointable(id);return!pointable.tool?pointable:Pointable.Invalid};Frame.prototype.hand=function(id){return this.handsMap[id]||Hand.Invalid};Frame.prototype.rotationAngle=function(sinceFrame,axis){if(!this.valid||!sinceFrame.valid)return 0;var rot=this.rotationMatrix(sinceFrame);var cs=(rot[0]+rot[4]+rot[8]-1)*.5;var angle=Math.acos(cs);angle=isNaN(angle)?0:angle;if(axis!==undefined){var rotAxis=this.rotationAxis(sinceFrame);angle*=vec3.dot(rotAxis,vec3.normalize(vec3.create(),axis))}return angle};Frame.prototype.rotationAxis=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();return vec3.normalize(vec3.create(),[this._rotation[7]-sinceFrame._rotation[5],this._rotation[2]-sinceFrame._rotation[6],this._rotation[3]-sinceFrame._rotation[1]])};Frame.prototype.rotationMatrix=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return mat3.create();var transpose=mat3.transpose(mat3.create(),this._rotation);return mat3.multiply(mat3.create(),sinceFrame._rotation,transpose)};Frame.prototype.scaleFactor=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return 1;return Math.exp(this._scaleFactor-sinceFrame._scaleFactor)};Frame.prototype.translation=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();return vec3.subtract(vec3.create(),this._translation,sinceFrame._translation)};Frame.prototype.toString=function(){var str="Frame [ id:"+this.id+" | timestamp:"+this.timestamp+" | Hand count:("+this.hands.length+") | Pointable count:("+this.pointables.length+")";if(this.gestures)str+=" | Gesture count:("+this.gestures.length+")";str+=" ]";return str};Frame.prototype.dump=function(){var out="";out+="Frame Info:<br/>";out+=this.toString();out+="<br/><br/>Hands:<br/>";for(var handIdx=0,handCount=this.hands.length;handIdx!=handCount;handIdx++){out+="  "+this.hands[handIdx].toString()+"<br/>"}out+="<br/><br/>Pointables:<br/>";for(var pointableIdx=0,pointableCount=this.pointables.length;pointableIdx!=pointableCount;pointableIdx++){out+="  "+this.pointables[pointableIdx].toString()+"<br/>"}if(this.gestures){out+="<br/><br/>Gestures:<br/>";for(var gestureIdx=0,gestureCount=this.gestures.length;gestureIdx!=gestureCount;gestureIdx++){out+="  "+this.gestures[gestureIdx].toString()+"<br/>"}}out+="<br/><br/>Raw JSON:<br/>";out+=JSON.stringify(this.data);return out};Frame.Invalid={valid:false,hands:[],fingers:[],tools:[],gestures:[],pointables:[],pointable:function(){return Pointable.Invalid},finger:function(){return Pointable.Invalid},hand:function(){return Hand.Invalid},toString:function(){return"invalid frame"},dump:function(){return this.toString()},rotationAngle:function(){return 0},rotationMatrix:function(){return mat3.create()},rotationAxis:function(){return vec3.create()},scaleFactor:function(){return 1},translation:function(){return vec3.create()}}},{"./gesture":6,"./hand":7,"./interaction_box":9,"./pointable":11,"gl-matrix":19,underscore:20}],6:[function(require,module,exports){var glMatrix=require("gl-matrix"),vec3=glMatrix.vec3,EventEmitter=require("events").EventEmitter,_=require("underscore");var createGesture=exports.createGesture=function(data){var gesture;switch(data.type){case"circle":gesture=new CircleGesture(data);break;case"swipe":gesture=new SwipeGesture(data);break;case"screenTap":gesture=new ScreenTapGesture(data);break;case"keyTap":gesture=new KeyTapGesture(data);break;default:throw"unkown gesture type"}gesture.id=data.id;gesture.handIds=data.handIds;gesture.pointableIds=data.pointableIds;gesture.duration=data.duration;gesture.state=data.state;gesture.type=data.type;return gesture};var gestureListener=exports.gestureListener=function(controller,type){var handlers={};var gestureMap={};var gestureCreator=function(){var candidateGesture=gestureMap[gesture.id];if(candidateGesture!==undefined)gesture.update(gesture,frame);if(gesture.state=="start"||gesture.state=="stop"){if(type==gesture.type&&gestureMap[gesture.id]===undefined){gestureMap[gesture.id]=new Gesture(gesture,frame);gesture.update(gesture,frame)}if(gesture.state=="stop"){delete gestureMap[gesture.id]}}};controller.on("gesture",function(gesture,frame){if(gesture.type==type){if(gesture.state=="start"||gesture.state=="stop"){if(gestureMap[gesture.id]===undefined){var gestureTracker=new Gesture(gesture,frame);gestureMap[gesture.id]=gestureTracker;_.each(handlers,function(cb,name){gestureTracker.on(name,cb)})}}gestureMap[gesture.id].update(gesture,frame);if(gesture.state=="stop"){delete gestureMap[gesture.id]}}});var builder={start:function(cb){handlers["start"]=cb;return builder},stop:function(cb){handlers["stop"]=cb;return builder},complete:function(cb){handlers["stop"]=cb;return builder},update:function(cb){handlers["update"]=cb;return builder}};return builder};var Gesture=exports.Gesture=function(gesture,frame){this.gestures=[gesture];this.frames=[frame]};Gesture.prototype.update=function(gesture,frame){this.gestures.push(gesture);this.frames.push(frame);this.emit(gesture.state,this)};_.extend(Gesture.prototype,EventEmitter.prototype);var CircleGesture=function(data){this.center=data.center;this.normal=data.normal;this.progress=data.progress;this.radius=data.radius};CircleGesture.prototype.toString=function(){return"CircleGesture ["+JSON.stringify(this)+"]"};var SwipeGesture=function(data){this.startPosition=data.startPosition;this.position=data.position;this.direction=data.direction;this.speed=data.speed};SwipeGesture.prototype.toString=function(){return"SwipeGesture ["+JSON.stringify(this)+"]"};var ScreenTapGesture=function(data){this.position=data.position;this.direction=data.direction;this.progress=data.progress};ScreenTapGesture.prototype.toString=function(){return"ScreenTapGesture ["+JSON.stringify(this)+"]"};var KeyTapGesture=function(data){this.position=data.position;this.direction=data.direction;this.progress=data.progress};KeyTapGesture.prototype.toString=function(){return"KeyTapGesture ["+JSON.stringify(this)+"]"}},{events:17,"gl-matrix":19,underscore:20}],7:[function(require,module,exports){var Pointable=require("./pointable"),glMatrix=require("gl-matrix"),mat3=glMatrix.mat3,vec3=glMatrix.vec3,_=require("underscore");var Hand=module.exports=function(data){this.id=data.id;this.palmPosition=data.palmPosition;this.direction=data.direction;this.palmVelocity=data.palmVelocity;this.palmNormal=data.palmNormal;this.sphereCenter=data.sphereCenter;this.sphereRadius=data.sphereRadius;this.valid=true;this.pointables=[];this.fingers=[];this.tools=[];this._translation=data.t;this._rotation=_.flatten(data.r);this._scaleFactor=data.s;this.timeVisible=data.timeVisible;this.stabilizedPalmPosition=data.stabilizedPalmPosition};Hand.prototype.finger=function(id){var finger=this.frame.finger(id);return finger&&finger.handId==this.id?finger:Pointable.Invalid};Hand.prototype.rotationAngle=function(sinceFrame,axis){if(!this.valid||!sinceFrame.valid)return 0;var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return 0;var rot=this.rotationMatrix(sinceFrame);var cs=(rot[0]+rot[4]+rot[8]-1)*.5;var angle=Math.acos(cs);angle=isNaN(angle)?0:angle;if(axis!==undefined){var rotAxis=this.rotationAxis(sinceFrame);angle*=vec3.dot(rotAxis,vec3.normalize(vec3.create(),axis))}return angle};Hand.prototype.rotationAxis=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return vec3.create();return vec3.normalize(vec3.create(),[this._rotation[7]-sinceHand._rotation[5],this._rotation[2]-sinceHand._rotation[6],this._rotation[3]-sinceHand._rotation[1]])};Hand.prototype.rotationMatrix=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return mat3.create();var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return mat3.create();var transpose=mat3.transpose(mat3.create(),this._rotation);var m=mat3.multiply(mat3.create(),sinceHand._rotation,transpose);return m};Hand.prototype.scaleFactor=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return 1;var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return 1;return Math.exp(this._scaleFactor-sinceHand._scaleFactor)};Hand.prototype.translation=function(sinceFrame){if(!this.valid||!sinceFrame.valid)return vec3.create();var sinceHand=sinceFrame.hand(this.id);if(!sinceHand.valid)return vec3.create();return[this._translation[0]-sinceHand._translation[0],this._translation[1]-sinceHand._translation[1],this._translation[2]-sinceHand._translation[2]]};Hand.prototype.toString=function(){return"Hand [ id: "+this.id+" | palm velocity:"+this.palmVelocity+" | sphere center:"+this.sphereCenter+" ] "};Hand.Invalid={valid:false,fingers:[],tools:[],pointables:[],pointable:function(){return Pointable.Invalid},finger:function(){return Pointable.Invalid},toString:function(){return"invalid frame"},dump:function(){return this.toString()},rotationAngle:function(){return 0},rotationMatrix:function(){return mat3.create()},rotationAxis:function(){return vec3.create()},scaleFactor:function(){return 1},translation:function(){return vec3.create()}}},{"./pointable":11,"gl-matrix":19,underscore:20}],8:[function(require,module,exports){!function(){module.exports={Controller:require("./controller"),Frame:require("./frame"),Gesture:require("./gesture"),Hand:require("./hand"),Pointable:require("./pointable"),InteractionBox:require("./interaction_box"),Connection:require("./connection"),CircularBuffer:require("./circular_buffer"),UI:require("./ui"),glMatrix:require("gl-matrix"),mat3:require("gl-matrix").mat3,vec3:require("gl-matrix").vec3,loopController:undefined,loop:function(opts,callback){if(callback===undefined){callback=opts;opts={}}if(!this.loopController)this.loopController=new this.Controller(opts);this.loopController.loop(callback)}}}()},{"./circular_buffer":2,"./connection":3,"./controller":4,"./frame":5,"./gesture":6,"./hand":7,"./interaction_box":9,"./pointable":11,"./ui":13,"gl-matrix":19}],9:[function(require,module,exports){var glMatrix=require("gl-matrix"),vec3=glMatrix.vec3;var InteractionBox=module.exports=function(data){this.valid=true;this.center=data.center;this.size=data.size;this.width=data.size[0];this.height=data.size[1];this.depth=data.size[2]};InteractionBox.prototype.denormalizePoint=function(normalizedPosition){return vec3.fromValues((normalizedPosition[0]-.5)*this.size[0]+this.center[0],(normalizedPosition[1]-.5)*this.size[1]+this.center[1],(normalizedPosition[2]-.5)*this.size[2]+this.center[2])};InteractionBox.prototype.normalizePoint=function(position,clamp){var vec=vec3.fromValues((position[0]-this.center[0])/this.size[0]+.5,(position[1]-this.center[1])/this.size[1]+.5,(position[2]-this.center[2])/this.size[2]+.5);if(clamp){vec[0]=Math.min(Math.max(vec[0],0),1);vec[1]=Math.min(Math.max(vec[1],0),1);vec[2]=Math.min(Math.max(vec[2],0),1)}return vec};InteractionBox.prototype.toString=function(){return"InteractionBox [ width:"+this.width+" | height:"+this.height+" | depth:"+this.depth+" ]"};InteractionBox.Invalid={valid:false}},{"gl-matrix":19}],10:[function(require,module,exports){var Pipeline=module.exports=function(){this.steps=[]};Pipeline.prototype.addStep=function(step){this.steps.push(step)};Pipeline.prototype.run=function(frame){var stepsLength=this.steps.length;for(var i=0;i!=stepsLength;i++){if(!frame)break;frame=this.steps[i](frame)}return frame}},{}],11:[function(require,module,exports){var glMatrix=require("gl-matrix"),vec3=glMatrix.vec3;var Pointable=module.exports=function(data){this.valid=true;this.id=data.id;this.handId=data.handId;this.length=data.length;this.tool=data.tool;this.width=data.width;this.direction=data.direction;this.stabilizedTipPosition=data.stabilizedTipPosition;this.tipPosition=data.tipPosition;this.tipVelocity=data.tipVelocity;this.touchZone=data.touchZone;this.touchDistance=data.touchDistance;this.timeVisible=data.timeVisible};Pointable.prototype.toString=function(){if(this.tool==true){return"Pointable [ id:"+this.id+" "+this.length+"mmx | with:"+this.width+"mm | direction:"+this.direction+" ]"}else{return"Pointable [ id:"+this.id+" "+this.length+"mmx | direction: "+this.direction+" ]"}};Pointable.Invalid={valid:false}},{"gl-matrix":19}],12:[function(require,module,exports){var Frame=require("./frame");var Event=function(data){this.type=data.type;this.state=data.state};var chooseProtocol=exports.chooseProtocol=function(header){var protocol;switch(header.version){case 1:protocol=JSONProtocol(1,function(data){return new Frame(data)});break;case 2:protocol=JSONProtocol(2,function(data){return new Frame(data)});protocol.sendHeartbeat=function(connection){connection.send(protocol.encode({heartbeat:true}))};break;case 3:protocol=JSONProtocol(3,function(data){return data.event?new Event(data.event):new Frame(data)});protocol.sendHeartbeat=function(connection){connection.send(protocol.encode({heartbeat:true}))};break;default:throw"unrecognized version"}return protocol};var JSONProtocol=function(version,cb){var protocol=cb;protocol.encode=function(message){return JSON.stringify(message)};protocol.version=version;protocol.versionLong="Version "+version;protocol.type="protocol";return protocol}},{"./frame":5}],13:[function(require,module,exports){exports.UI={Region:require("./ui/region"),Cursor:require("./ui/cursor")}},{"./ui/cursor":14,"./ui/region":15}],14:[function(require,module,exports){var Cursor=module.exports=function(){return function(frame){var pointable=frame.pointables.sort(function(a,b){return a.z-b.z})[0];if(pointable&&pointable.valid){frame.cursorPosition=pointable.tipPosition}return frame}}},{}],15:[function(require,module,exports){var EventEmitter=require("events").EventEmitter,_=require("underscore");var Region=module.exports=function(start,end){this.start=new Vector(start);this.end=new Vector(end);this.enteredFrame=null};Region.prototype.hasPointables=function(frame){for(var i=0;i!=frame.pointables.length;i++){var position=frame.pointables[i].tipPosition;if(position.x>=this.start.x&&position.x<=this.end.x&&position.y>=this.start.y&&position.y<=this.end.y&&position.z>=this.start.z&&position.z<=this.end.z){return true}}return false};Region.prototype.listener=function(opts){var region=this;if(opts&&opts.nearThreshold)this.setupNearRegion(opts.nearThreshold);return function(frame){return region.updatePosition(frame)}};Region.prototype.clipper=function(){var region=this;return function(frame){region.updatePosition(frame);return region.enteredFrame?frame:null}};Region.prototype.setupNearRegion=function(distance){var nearRegion=this.nearRegion=new Region([this.start.x-distance,this.start.y-distance,this.start.z-distance],[this.end.x+distance,this.end.y+distance,this.end.z+distance]);var region=this;nearRegion.on("enter",function(frame){region.emit("near",frame)});nearRegion.on("exit",function(frame){region.emit("far",frame)});region.on("exit",function(frame){region.emit("near",frame)})};Region.prototype.updatePosition=function(frame){if(this.nearRegion)this.nearRegion.updatePosition(frame);if(this.hasPointables(frame)&&this.enteredFrame==null){this.enteredFrame=frame;this.emit("enter",this.enteredFrame)}else if(!this.hasPointables(frame)&&this.enteredFrame!=null){this.enteredFrame=null;this.emit("exit",this.enteredFrame)}return frame};Region.prototype.normalize=function(position){return new Vector([(position.x-this.start.x)/(this.end.x-this.start.x),(position.y-this.start.y)/(this.end.y-this.start.y),(position.z-this.start.z)/(this.end.z-this.start.z)])};Region.prototype.mapToXY=function(position,width,height){var normalized=this.normalize(position);var x=normalized.x,y=normalized.y;if(x>1)x=1;else if(x<-1)x=-1;if(y>1)y=1;else if(y<-1)y=-1;return[(x+1)/2*width,(1-y)/2*height,normalized.z]};_.extend(Region.prototype,EventEmitter.prototype)},{events:17,underscore:20}],16:[function(require,module,exports){},{}],17:[function(require,module,exports){!function(process){if(!process.EventEmitter)process.EventEmitter=function(){};var EventEmitter=exports.EventEmitter=process.EventEmitter;var isArray=typeof Array.isArray==="function"?Array.isArray:function(xs){return Object.prototype.toString.call(xs)==="[object Array]"};function indexOf(xs,x){if(xs.indexOf)return xs.indexOf(x);for(var i=0;i<xs.length;i++){if(x===xs[i])return i}return-1}var defaultMaxListeners=10;EventEmitter.prototype.setMaxListeners=function(n){if(!this._events)this._events={};this._events.maxListeners=n};EventEmitter.prototype.emit=function(type){if(type==="error"){if(!this._events||!this._events.error||isArray(this._events.error)&&!this._events.error.length){if(arguments[1]instanceof Error){throw arguments[1]}else{throw new Error("Uncaught, unspecified 'error' event.")}return false}}if(!this._events)return false;var handler=this._events[type];if(!handler)return false;if(typeof handler=="function"){switch(arguments.length){case 1:handler.call(this);break;case 2:handler.call(this,arguments[1]);break;case 3:handler.call(this,arguments[1],arguments[2]);break;default:var args=Array.prototype.slice.call(arguments,1);handler.apply(this,args)}return true}else if(isArray(handler)){var args=Array.prototype.slice.call(arguments,1);var listeners=handler.slice();for(var i=0,l=listeners.length;i<l;i++){listeners[i].apply(this,args)}return true}else{return false}};EventEmitter.prototype.addListener=function(type,listener){if("function"!==typeof listener){throw new Error("addListener only takes instances of Function")}if(!this._events)this._events={};this.emit("newListener",type,listener);if(!this._events[type]){this._events[type]=listener}else if(isArray(this._events[type])){if(!this._events[type].warned){var m;if(this._events.maxListeners!==undefined){m=this._events.maxListeners}else{m=defaultMaxListeners}if(m&&m>0&&this._events[type].length>m){this._events[type].warned=true;console.error("(node) warning: possible EventEmitter memory "+"leak detected. %d listeners added. "+"Use emitter.setMaxListeners() to increase limit.",this._events[type].length);console.trace()}}this._events[type].push(listener)}else{this._events[type]=[this._events[type],listener]}return this};EventEmitter.prototype.on=EventEmitter.prototype.addListener;EventEmitter.prototype.once=function(type,listener){var self=this;self.on(type,function g(){self.removeListener(type,g);listener.apply(this,arguments)});return this};EventEmitter.prototype.removeListener=function(type,listener){if("function"!==typeof listener){throw new Error("removeListener only takes instances of Function")}if(!this._events||!this._events[type])return this;var list=this._events[type];if(isArray(list)){var i=indexOf(list,listener);if(i<0)return this;list.splice(i,1);if(list.length==0)delete this._events[type]}else if(this._events[type]===listener){delete this._events[type]}return this};EventEmitter.prototype.removeAllListeners=function(type){if(arguments.length===0){this._events={};return this}if(type&&this._events&&this._events[type])this._events[type]=null;return this};EventEmitter.prototype.listeners=function(type){if(!this._events)this._events={};if(!this._events[type])this._events[type]=[];if(!isArray(this._events[type])){this._events[type]=[this._events[type]]}return this._events[type]}}(require("__browserify_process"))},{__browserify_process:18}],18:[function(require,module,exports){var process=module.exports={};process.nextTick=function(){var canSetImmediate=typeof window!=="undefined"&&window.setImmediate;var canPost=typeof window!=="undefined"&&window.postMessage&&window.addEventListener;if(canSetImmediate){return function(f){return window.setImmediate(f)}}if(canPost){var queue=[];window.addEventListener("message",function(ev){if(ev.source===window&&ev.data==="process-tick"){ev.stopPropagation();if(queue.length>0){var fn=queue.shift();fn()}}},true);return function nextTick(fn){queue.push(fn);window.postMessage("process-tick","*")}}return function nextTick(fn){setTimeout(fn,0)}}();process.title="browser";process.browser=true;process.env={};process.argv=[];process.binding=function(name){throw new Error("process.binding is not supported")};process.cwd=function(){return"/"};process.chdir=function(dir){throw new Error("process.chdir is not supported")}},{}],19:[function(require,module,exports){!function(){!function(){"use strict";var shim={};if(typeof exports==="undefined"){if(typeof define=="function"&&typeof define.amd=="object"&&define.amd){shim.exports={};define(function(){return shim.exports})}else{shim.exports=window}}else{shim.exports=exports}!function(exports){var vec2={};if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}vec2.create=function(){return new Float32Array(2)};vec2.clone=function(a){var out=new Float32Array(2);out[0]=a[0];out[1]=a[1];return out};vec2.fromValues=function(x,y){var out=new Float32Array(2);out[0]=x;out[1]=y;return out};vec2.copy=function(out,a){out[0]=a[0];out[1]=a[1];return out};vec2.set=function(out,x,y){out[0]=x;out[1]=y;return out};vec2.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];return out};vec2.sub=vec2.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];return out};vec2.mul=vec2.multiply=function(out,a,b){out[0]=a[0]*b[0];out[1]=a[1]*b[1];return out};vec2.div=vec2.divide=function(out,a,b){out[0]=a[0]/b[0];out[1]=a[1]/b[1];return out};vec2.min=function(out,a,b){out[0]=Math.min(a[0],b[0]);
 out[1]=Math.min(a[1],b[1]);return out};vec2.max=function(out,a,b){out[0]=Math.max(a[0],b[0]);out[1]=Math.max(a[1],b[1]);return out};vec2.scale=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;return out};vec2.dist=vec2.distance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1];return Math.sqrt(x*x+y*y)};vec2.sqrDist=vec2.squaredDistance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1];return x*x+y*y};vec2.len=vec2.length=function(a){var x=a[0],y=a[1];return Math.sqrt(x*x+y*y)};vec2.sqrLen=vec2.squaredLength=function(a){var x=a[0],y=a[1];return x*x+y*y};vec2.negate=function(out,a){out[0]=-a[0];out[1]=-a[1];return out};vec2.normalize=function(out,a){var x=a[0],y=a[1];var len=x*x+y*y;if(len>0){len=1/Math.sqrt(len);out[0]=a[0]*len;out[1]=a[1]*len}return out};vec2.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]};vec2.cross=function(out,a,b){var z=a[0]*b[1]-a[1]*b[0];out[0]=out[1]=0;out[2]=z;return out};vec2.lerp=function(out,a,b,t){var ax=a[0],ay=a[1];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);return out};vec2.transformMat2=function(out,a,m){var x=a[0],y=a[1];out[0]=x*m[0]+y*m[1];out[1]=x*m[2]+y*m[3];return out};vec2.forEach=function(){var vec=new Float32Array(2);return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=2}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i<l;i+=stride){vec[0]=a[i];vec[1]=a[i+1];fn(vec,vec,arg);a[i]=vec[0];a[i+1]=vec[1]}return a}}();vec2.str=function(a){return"vec2("+a[0]+", "+a[1]+")"};if(typeof exports!=="undefined"){exports.vec2=vec2}var vec3={};if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}vec3.create=function(){return new Float32Array(3)};vec3.clone=function(a){var out=new Float32Array(3);out[0]=a[0];out[1]=a[1];out[2]=a[2];return out};vec3.fromValues=function(x,y,z){var out=new Float32Array(3);out[0]=x;out[1]=y;out[2]=z;return out};vec3.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];return out};vec3.set=function(out,x,y,z){out[0]=x;out[1]=y;out[2]=z;return out};vec3.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];out[2]=a[2]+b[2];return out};vec3.sub=vec3.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];out[2]=a[2]-b[2];return out};vec3.mul=vec3.multiply=function(out,a,b){out[0]=a[0]*b[0];out[1]=a[1]*b[1];out[2]=a[2]*b[2];return out};vec3.div=vec3.divide=function(out,a,b){out[0]=a[0]/b[0];out[1]=a[1]/b[1];out[2]=a[2]/b[2];return out};vec3.min=function(out,a,b){out[0]=Math.min(a[0],b[0]);out[1]=Math.min(a[1],b[1]);out[2]=Math.min(a[2],b[2]);return out};vec3.max=function(out,a,b){out[0]=Math.max(a[0],b[0]);out[1]=Math.max(a[1],b[1]);out[2]=Math.max(a[2],b[2]);return out};vec3.scale=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;out[2]=a[2]*b;return out};vec3.dist=vec3.distance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2];return Math.sqrt(x*x+y*y+z*z)};vec3.sqrDist=vec3.squaredDistance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2];return x*x+y*y+z*z};vec3.len=vec3.length=function(a){var x=a[0],y=a[1],z=a[2];return Math.sqrt(x*x+y*y+z*z)};vec3.sqrLen=vec3.squaredLength=function(a){var x=a[0],y=a[1],z=a[2];return x*x+y*y+z*z};vec3.negate=function(out,a){out[0]=-a[0];out[1]=-a[1];out[2]=-a[2];return out};vec3.normalize=function(out,a){var x=a[0],y=a[1],z=a[2];var len=x*x+y*y+z*z;if(len>0){len=1/Math.sqrt(len);out[0]=a[0]*len;out[1]=a[1]*len;out[2]=a[2]*len}return out};vec3.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]};vec3.cross=function(out,a,b){var ax=a[0],ay=a[1],az=a[2],bx=b[0],by=b[1],bz=b[2];out[0]=ay*bz-az*by;out[1]=az*bx-ax*bz;out[2]=ax*by-ay*bx;return out};vec3.lerp=function(out,a,b,t){var ax=a[0],ay=a[1],az=a[2];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);out[2]=az+t*(b[2]-az);return out};vec3.transformMat4=function(out,a,m){var x=a[0],y=a[1],z=a[2];out[0]=m[0]*x+m[4]*y+m[8]*z+m[12];out[1]=m[1]*x+m[5]*y+m[9]*z+m[13];out[2]=m[2]*x+m[6]*y+m[10]*z+m[14];return out};vec3.transformQuat=function(out,a,q){var x=a[0],y=a[1],z=a[2],qx=q[0],qy=q[1],qz=q[2],qw=q[3],ix=qw*x+qy*z-qz*y,iy=qw*y+qz*x-qx*z,iz=qw*z+qx*y-qy*x,iw=-qx*x-qy*y-qz*z;out[0]=ix*qw+iw*-qx+iy*-qz-iz*-qy;out[1]=iy*qw+iw*-qy+iz*-qx-ix*-qz;out[2]=iz*qw+iw*-qz+ix*-qy-iy*-qx;return out};vec3.forEach=function(){var vec=new Float32Array(3);return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=3}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i<l;i+=stride){vec[0]=a[i];vec[1]=a[i+1];vec[2]=a[i+2];fn(vec,vec,arg);a[i]=vec[0];a[i+1]=vec[1];a[i+2]=vec[2]}return a}}();vec3.str=function(a){return"vec3("+a[0]+", "+a[1]+", "+a[2]+")"};if(typeof exports!=="undefined"){exports.vec3=vec3}var vec4={};if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}vec4.create=function(){return new Float32Array(4)};vec4.clone=function(a){var out=new Float32Array(4);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};vec4.fromValues=function(x,y,z,w){var out=new Float32Array(4);out[0]=x;out[1]=y;out[2]=z;out[3]=w;return out};vec4.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};vec4.set=function(out,x,y,z,w){out[0]=x;out[1]=y;out[2]=z;out[3]=w;return out};vec4.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];out[2]=a[2]+b[2];out[3]=a[3]+b[3];return out};vec4.sub=vec4.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];out[2]=a[2]-b[2];out[3]=a[3]-b[3];return out};vec4.mul=vec4.multiply=function(out,a,b){out[0]=a[0]*b[0];out[1]=a[1]*b[1];out[2]=a[2]*b[2];out[3]=a[3]*b[3];return out};vec4.div=vec4.divide=function(out,a,b){out[0]=a[0]/b[0];out[1]=a[1]/b[1];out[2]=a[2]/b[2];out[3]=a[3]/b[3];return out};vec4.min=function(out,a,b){out[0]=Math.min(a[0],b[0]);out[1]=Math.min(a[1],b[1]);out[2]=Math.min(a[2],b[2]);out[3]=Math.min(a[3],b[3]);return out};vec4.max=function(out,a,b){out[0]=Math.max(a[0],b[0]);out[1]=Math.max(a[1],b[1]);out[2]=Math.max(a[2],b[2]);out[3]=Math.max(a[3],b[3]);return out};vec4.scale=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;out[2]=a[2]*b;out[3]=a[3]*b;return out};vec4.dist=vec4.distance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2],w=b[3]-a[3];return Math.sqrt(x*x+y*y+z*z+w*w)};vec4.sqrDist=vec4.squaredDistance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2],w=b[3]-a[3];return x*x+y*y+z*z+w*w};vec4.len=vec4.length=function(a){var x=a[0],y=a[1],z=a[2],w=a[3];return Math.sqrt(x*x+y*y+z*z+w*w)};vec4.sqrLen=vec4.squaredLength=function(a){var x=a[0],y=a[1],z=a[2],w=a[3];return x*x+y*y+z*z+w*w};vec4.negate=function(out,a){out[0]=-a[0];out[1]=-a[1];out[2]=-a[2];out[3]=-a[3];return out};vec4.normalize=function(out,a){var x=a[0],y=a[1],z=a[2],w=a[3];var len=x*x+y*y+z*z+w*w;if(len>0){len=1/Math.sqrt(len);out[0]=a[0]*len;out[1]=a[1]*len;out[2]=a[2]*len;out[3]=a[3]*len}return out};vec4.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]+a[3]*b[3]};vec4.lerp=function(out,a,b,t){var ax=a[0],ay=a[1],az=a[2],aw=a[3];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);out[2]=az+t*(b[2]-az);out[3]=aw+t*(b[3]-aw);return out};vec4.transformMat4=function(out,a,m){var x=a[0],y=a[1],z=a[2],w=a[3];out[0]=m[0]*x+m[4]*y+m[8]*z+m[12]*w;out[1]=m[1]*x+m[5]*y+m[9]*z+m[13]*w;out[2]=m[2]*x+m[6]*y+m[10]*z+m[14]*w;out[3]=m[3]*x+m[7]*y+m[11]*z+m[15]*w;return out};vec4.transformQuat=function(out,a,q){var x=a[0],y=a[1],z=a[2],qx=q[0],qy=q[1],qz=q[2],qw=q[3],ix=qw*x+qy*z-qz*y,iy=qw*y+qz*x-qx*z,iz=qw*z+qx*y-qy*x,iw=-qx*x-qy*y-qz*z;out[0]=ix*qw+iw*-qx+iy*-qz-iz*-qy;out[1]=iy*qw+iw*-qy+iz*-qx-ix*-qz;out[2]=iz*qw+iw*-qz+ix*-qy-iy*-qx;return out};vec4.forEach=function(){var vec=new Float32Array(4);return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=4}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i<l;i+=stride){vec[0]=a[i];vec[1]=a[i+1];vec[2]=a[i+2];vec[3]=a[i+3];fn(vec,vec,arg);a[i]=vec[0];a[i+1]=vec[1];a[i+2]=vec[2];a[i+3]=vec[3]}return a}}();vec4.str=function(a){return"vec4("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"};if(typeof exports!=="undefined"){exports.vec4=vec4}var mat2={};var mat2Identity=new Float32Array([1,0,0,1]);if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}mat2.create=function(){return new Float32Array(mat2Identity)};mat2.clone=function(a){var out=new Float32Array(4);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};mat2.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};mat2.identity=function(out){out[0]=1;out[1]=0;out[2]=0;out[3]=1;return out};mat2.transpose=function(out,a){if(out===a){var a1=a[1];out[1]=a[2];out[2]=a1}else{out[0]=a[0];out[1]=a[2];out[2]=a[1];out[3]=a[3]}return out};mat2.invert=function(out,a){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],det=a0*a3-a2*a1;if(!det){return null}det=1/det;out[0]=a3*det;out[1]=-a1*det;out[2]=-a2*det;out[3]=a0*det;return out};mat2.adjoint=function(out,a){var a0=a[0];out[0]=a[3];out[1]=-a[1];out[2]=-a[2];out[3]=a0;return out};mat2.determinant=function(a){return a[0]*a[3]-a[2]*a[1]};mat2.mul=mat2.multiply=function(out,a,b){var a0=a[0],a1=a[1],a2=a[2],a3=a[3];var b0=b[0],b1=b[1],b2=b[2],b3=b[3];out[0]=a0*b0+a1*b2;out[1]=a0*b1+a1*b3;out[2]=a2*b0+a3*b2;out[3]=a2*b1+a3*b3;return out};mat2.rotate=function(out,a,rad){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],s=Math.sin(rad),c=Math.cos(rad);out[0]=a0*c+a1*s;out[1]=a0*-s+a1*c;out[2]=a2*c+a3*s;out[3]=a2*-s+a3*c;return out};mat2.scale=function(out,a,v){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],v0=v[0],v1=v[1];out[0]=a0*v0;out[1]=a1*v1;out[2]=a2*v0;out[3]=a3*v1;return out};mat2.str=function(a){return"mat2("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"};if(typeof exports!=="undefined"){exports.mat2=mat2}var mat3={};var mat3Identity=new Float32Array([1,0,0,0,1,0,0,0,1]);if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}mat3.create=function(){return new Float32Array(mat3Identity)};mat3.clone=function(a){var out=new Float32Array(9);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];return out};mat3.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];return out};mat3.identity=function(out){out[0]=1;out[1]=0;out[2]=0;out[3]=0;out[4]=1;out[5]=0;out[6]=0;out[7]=0;out[8]=1;return out};mat3.transpose=function(out,a){if(out===a){var a01=a[1],a02=a[2],a12=a[5];out[1]=a[3];out[2]=a[6];out[3]=a01;out[5]=a[7];out[6]=a02;out[7]=a12}else{out[0]=a[0];out[1]=a[3];out[2]=a[6];out[3]=a[1];out[4]=a[4];out[5]=a[7];out[6]=a[2];out[7]=a[5];out[8]=a[8]}return out};mat3.invert=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8],b01=a22*a11-a12*a21,b11=-a22*a10+a12*a20,b21=a21*a10-a11*a20,det=a00*b01+a01*b11+a02*b21;if(!det){return null}det=1/det;out[0]=b01*det;out[1]=(-a22*a01+a02*a21)*det;out[2]=(a12*a01-a02*a11)*det;out[3]=b11*det;out[4]=(a22*a00-a02*a20)*det;out[5]=(-a12*a00+a02*a10)*det;out[6]=b21*det;out[7]=(-a21*a00+a01*a20)*det;out[8]=(a11*a00-a01*a10)*det;return out};mat3.adjoint=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8];out[0]=a11*a22-a12*a21;out[1]=a02*a21-a01*a22;out[2]=a01*a12-a02*a11;out[3]=a12*a20-a10*a22;out[4]=a00*a22-a02*a20;out[5]=a02*a10-a00*a12;out[6]=a10*a21-a11*a20;out[7]=a01*a20-a00*a21;out[8]=a00*a11-a01*a10;return out};mat3.determinant=function(a){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8];return a00*(a22*a11-a12*a21)+a01*(-a22*a10+a12*a20)+a02*(a21*a10-a11*a20)};mat3.mul=mat3.multiply=function(out,a,b){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8],b00=b[0],b01=b[1],b02=b[2],b10=b[3],b11=b[4],b12=b[5],b20=b[6],b21=b[7],b22=b[8];out[0]=b00*a00+b01*a10+b02*a20;out[1]=b00*a01+b01*a11+b02*a21;out[2]=b00*a02+b01*a12+b02*a22;out[3]=b10*a00+b11*a10+b12*a20;out[4]=b10*a01+b11*a11+b12*a21;out[5]=b10*a02+b11*a12+b12*a22;out[6]=b20*a00+b21*a10+b22*a20;out[7]=b20*a01+b21*a11+b22*a21;out[8]=b20*a02+b21*a12+b22*a22;return out};mat3.str=function(a){return"mat3("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+", "+a[4]+", "+a[5]+", "+a[6]+", "+a[7]+", "+a[8]+")"};if(typeof exports!=="undefined"){exports.mat3=mat3}var mat4={};var mat4Identity=new Float32Array([1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]);if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}mat4.create=function(){return new Float32Array(mat4Identity)};mat4.clone=function(a){var out=new Float32Array(16);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];out[9]=a[9];out[10]=a[10];out[11]=a[11];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15];return out};mat4.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];out[9]=a[9];out[10]=a[10];out[11]=a[11];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15];return out};mat4.identity=function(out){out[0]=1;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=1;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=1;out[11]=0;out[12]=0;out[13]=0;out[14]=0;out[15]=1;return out};mat4.transpose=function(out,a){if(out===a){var a01=a[1],a02=a[2],a03=a[3],a12=a[6],a13=a[7],a23=a[11];out[1]=a[4];out[2]=a[8];out[3]=a[12];out[4]=a01;out[6]=a[9];out[7]=a[13];out[8]=a02;out[9]=a12;out[11]=a[14];out[12]=a03;out[13]=a13;out[14]=a23}else{out[0]=a[0];out[1]=a[4];out[2]=a[8];out[3]=a[12];out[4]=a[1];out[5]=a[5];out[6]=a[9];out[7]=a[13];out[8]=a[2];out[9]=a[6];out[10]=a[10];out[11]=a[14];out[12]=a[3];out[13]=a[7];out[14]=a[11];out[15]=a[15]}return out};mat4.invert=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15],b00=a00*a11-a01*a10,b01=a00*a12-a02*a10,b02=a00*a13-a03*a10,b03=a01*a12-a02*a11,b04=a01*a13-a03*a11,b05=a02*a13-a03*a12,b06=a20*a31-a21*a30,b07=a20*a32-a22*a30,b08=a20*a33-a23*a30,b09=a21*a32-a22*a31,b10=a21*a33-a23*a31,b11=a22*a33-a23*a32,det=b00*b11-b01*b10+b02*b09+b03*b08-b04*b07+b05*b06;if(!det){return null}det=1/det;out[0]=(a11*b11-a12*b10+a13*b09)*det;out[1]=(a02*b10-a01*b11-a03*b09)*det;out[2]=(a31*b05-a32*b04+a33*b03)*det;out[3]=(a22*b04-a21*b05-a23*b03)*det;out[4]=(a12*b08-a10*b11-a13*b07)*det;out[5]=(a00*b11-a02*b08+a03*b07)*det;out[6]=(a32*b02-a30*b05-a33*b01)*det;out[7]=(a20*b05-a22*b02+a23*b01)*det;out[8]=(a10*b10-a11*b08+a13*b06)*det;out[9]=(a01*b08-a00*b10-a03*b06)*det;out[10]=(a30*b04-a31*b02+a33*b00)*det;out[11]=(a21*b02-a20*b04-a23*b00)*det;out[12]=(a11*b07-a10*b09-a12*b06)*det;out[13]=(a00*b09-a01*b07+a02*b06)*det;out[14]=(a31*b01-a30*b03-a32*b00)*det;out[15]=(a20*b03-a21*b01+a22*b00)*det;return out};mat4.adjoint=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15];out[0]=a11*(a22*a33-a23*a32)-a21*(a12*a33-a13*a32)+a31*(a12*a23-a13*a22);out[1]=-(a01*(a22*a33-a23*a32)-a21*(a02*a33-a03*a32)+a31*(a02*a23-a03*a22));out[2]=a01*(a12*a33-a13*a32)-a11*(a02*a33-a03*a32)+a31*(a02*a13-a03*a12);out[3]=-(a01*(a12*a23-a13*a22)-a11*(a02*a23-a03*a22)+a21*(a02*a13-a03*a12));out[4]=-(a10*(a22*a33-a23*a32)-a20*(a12*a33-a13*a32)+a30*(a12*a23-a13*a22));out[5]=a00*(a22*a33-a23*a32)-a20*(a02*a33-a03*a32)+a30*(a02*a23-a03*a22);out[6]=-(a00*(a12*a33-a13*a32)-a10*(a02*a33-a03*a32)+a30*(a02*a13-a03*a12));out[7]=a00*(a12*a23-a13*a22)-a10*(a02*a23-a03*a22)+a20*(a02*a13-a03*a12);out[8]=a10*(a21*a33-a23*a31)-a20*(a11*a33-a13*a31)+a30*(a11*a23-a13*a21);out[9]=-(a00*(a21*a33-a23*a31)-a20*(a01*a33-a03*a31)+a30*(a01*a23-a03*a21));out[10]=a00*(a11*a33-a13*a31)-a10*(a01*a33-a03*a31)+a30*(a01*a13-a03*a11);out[11]=-(a00*(a11*a23-a13*a21)-a10*(a01*a23-a03*a21)+a20*(a01*a13-a03*a11));out[12]=-(a10*(a21*a32-a22*a31)-a20*(a11*a32-a12*a31)+a30*(a11*a22-a12*a21));out[13]=a00*(a21*a32-a22*a31)-a20*(a01*a32-a02*a31)+a30*(a01*a22-a02*a21);out[14]=-(a00*(a11*a32-a12*a31)-a10*(a01*a32-a02*a31)+a30*(a01*a12-a02*a11));out[15]=a00*(a11*a22-a12*a21)-a10*(a01*a22-a02*a21)+a20*(a01*a12-a02*a11);return out};mat4.determinant=function(a){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15],b00=a00*a11-a01*a10,b01=a00*a12-a02*a10,b02=a00*a13-a03*a10,b03=a01*a12-a02*a11,b04=a01*a13-a03*a11,b05=a02*a13-a03*a12,b06=a20*a31-a21*a30,b07=a20*a32-a22*a30,b08=a20*a33-a23*a30,b09=a21*a32-a22*a31,b10=a21*a33-a23*a31,b11=a22*a33-a23*a32;return b00*b11-b01*b10+b02*b09+b03*b08-b04*b07+b05*b06};mat4.mul=mat4.multiply=function(out,a,b){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15];var b0=b[0],b1=b[1],b2=b[2],b3=b[3];out[0]=b0*a00+b1*a10+b2*a20+b3*a30;out[1]=b0*a01+b1*a11+b2*a21+b3*a31;out[2]=b0*a02+b1*a12+b2*a22+b3*a32;out[3]=b0*a03+b1*a13+b2*a23+b3*a33;b0=b[4];b1=b[5];b2=b[6];b3=b[7];out[4]=b0*a00+b1*a10+b2*a20+b3*a30;out[5]=b0*a01+b1*a11+b2*a21+b3*a31;out[6]=b0*a02+b1*a12+b2*a22+b3*a32;out[7]=b0*a03+b1*a13+b2*a23+b3*a33;b0=b[8];b1=b[9];b2=b[10];b3=b[11];out[8]=b0*a00+b1*a10+b2*a20+b3*a30;out[9]=b0*a01+b1*a11+b2*a21+b3*a31;out[10]=b0*a02+b1*a12+b2*a22+b3*a32;out[11]=b0*a03+b1*a13+b2*a23+b3*a33;b0=b[12];b1=b[13];b2=b[14];b3=b[15];out[12]=b0*a00+b1*a10+b2*a20+b3*a30;out[13]=b0*a01+b1*a11+b2*a21+b3*a31;out[14]=b0*a02+b1*a12+b2*a22+b3*a32;out[15]=b0*a03+b1*a13+b2*a23+b3*a33;return out};mat4.translate=function(out,a,v){var x=v[0],y=v[1],z=v[2],a00,a01,a02,a03,a10,a11,a12,a13,a20,a21,a22,a23;if(a===out){out[12]=a[0]*x+a[4]*y+a[8]*z+a[12];out[13]=a[1]*x+a[5]*y+a[9]*z+a[13];out[14]=a[2]*x+a[6]*y+a[10]*z+a[14];out[15]=a[3]*x+a[7]*y+a[11]*z+a[15]}else{a00=a[0];a01=a[1];a02=a[2];a03=a[3];a10=a[4];a11=a[5];a12=a[6];a13=a[7];a20=a[8];a21=a[9];a22=a[10];a23=a[11];out[0]=a00;out[1]=a01;out[2]=a02;out[3]=a03;out[4]=a10;out[5]=a11;out[6]=a12;out[7]=a13;out[8]=a20;out[9]=a21;out[10]=a22;out[11]=a23;out[12]=a00*x+a10*y+a20*z+a[12];out[13]=a01*x+a11*y+a21*z+a[13];out[14]=a02*x+a12*y+a22*z+a[14];out[15]=a03*x+a13*y+a23*z+a[15]}return out};mat4.scale=function(out,a,v){var x=v[0],y=v[1],z=v[2];out[0]=a[0]*x;out[1]=a[1]*x;out[2]=a[2]*x;out[3]=a[3]*x;out[4]=a[4]*y;out[5]=a[5]*y;out[6]=a[6]*y;out[7]=a[7]*y;out[8]=a[8]*z;out[9]=a[9]*z;out[10]=a[10]*z;out[11]=a[11]*z;out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15];return out};mat4.rotate=function(out,a,rad,axis){var x=axis[0],y=axis[1],z=axis[2],len=Math.sqrt(x*x+y*y+z*z),s,c,t,a00,a01,a02,a03,a10,a11,a12,a13,a20,a21,a22,a23,b00,b01,b02,b10,b11,b12,b20,b21,b22;if(Math.abs(len)<GLMAT_EPSILON){return null}len=1/len;x*=len;y*=len;z*=len;s=Math.sin(rad);c=Math.cos(rad);t=1-c;a00=a[0];a01=a[1];a02=a[2];a03=a[3];a10=a[4];a11=a[5];a12=a[6];a13=a[7];a20=a[8];a21=a[9];a22=a[10];a23=a[11];b00=x*x*t+c;b01=y*x*t+z*s;b02=z*x*t-y*s;b10=x*y*t-z*s;b11=y*y*t+c;b12=z*y*t+x*s;b20=x*z*t+y*s;b21=y*z*t-x*s;b22=z*z*t+c;out[0]=a00*b00+a10*b01+a20*b02;out[1]=a01*b00+a11*b01+a21*b02;out[2]=a02*b00+a12*b01+a22*b02;out[3]=a03*b00+a13*b01+a23*b02;out[4]=a00*b10+a10*b11+a20*b12;out[5]=a01*b10+a11*b11+a21*b12;out[6]=a02*b10+a12*b11+a22*b12;out[7]=a03*b10+a13*b11+a23*b12;out[8]=a00*b20+a10*b21+a20*b22;out[9]=a01*b20+a11*b21+a21*b22;out[10]=a02*b20+a12*b21+a22*b22;out[11]=a03*b20+a13*b21+a23*b22;if(a!==out){out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}return out};mat4.rotateX=function(out,a,rad){var s=Math.sin(rad),c=Math.cos(rad),a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11];if(a!==out){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}out[4]=a10*c+a20*s;out[5]=a11*c+a21*s;out[6]=a12*c+a22*s;out[7]=a13*c+a23*s;out[8]=a20*c-a10*s;out[9]=a21*c-a11*s;out[10]=a22*c-a12*s;out[11]=a23*c-a13*s;return out};mat4.rotateY=function(out,a,rad){var s=Math.sin(rad),c=Math.cos(rad),a00=a[0],a01=a[1],a02=a[2],a03=a[3],a20=a[8],a21=a[9],a22=a[10],a23=a[11];if(a!==out){out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}out[0]=a00*c-a20*s;out[1]=a01*c-a21*s;out[2]=a02*c-a22*s;out[3]=a03*c-a23*s;out[8]=a00*s+a20*c;out[9]=a01*s+a21*c;out[10]=a02*s+a22*c;out[11]=a03*s+a23*c;return out};mat4.rotateZ=function(out,a,rad){var s=Math.sin(rad),c=Math.cos(rad),a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7];if(a!==out){out[8]=a[8];out[9]=a[9];out[10]=a[10];out[11]=a[11];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}out[0]=a00*c+a10*s;out[1]=a01*c+a11*s;out[2]=a02*c+a12*s;out[3]=a03*c+a13*s;out[4]=a10*c-a00*s;out[5]=a11*c-a01*s;out[6]=a12*c-a02*s;out[7]=a13*c-a03*s;return out};mat4.fromRotationTranslation=function(out,q,v){var x=q[0],y=q[1],z=q[2],w=q[3],x2=x+x,y2=y+y,z2=z+z,xx=x*x2,xy=x*y2,xz=x*z2,yy=y*y2,yz=y*z2,zz=z*z2,wx=w*x2,wy=w*y2,wz=w*z2;out[0]=1-(yy+zz);out[1]=xy+wz;out[2]=xz-wy;out[3]=0;out[4]=xy-wz;out[5]=1-(xx+zz);out[6]=yz+wx;out[7]=0;out[8]=xz+wy;out[9]=yz-wx;out[10]=1-(xx+yy);out[11]=0;out[12]=v[0];out[13]=v[1];out[14]=v[2];out[15]=1;return out};mat4.frustum=function(out,left,right,bottom,top,near,far){var rl=1/(right-left),tb=1/(top-bottom),nf=1/(near-far);out[0]=near*2*rl;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=near*2*tb;out[6]=0;out[7]=0;out[8]=(right+left)*rl;out[9]=(top+bottom)*tb;out[10]=(far+near)*nf;out[11]=-1;out[12]=0;out[13]=0;out[14]=far*near*2*nf;out[15]=0;return out};mat4.perspective=function(out,fovy,aspect,near,far){var f=1/Math.tan(fovy/2),nf=1/(near-far);out[0]=f/aspect;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=f;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=(far+near)*nf;out[11]=-1;out[12]=0;out[13]=0;out[14]=2*far*near*nf;out[15]=0;return out};mat4.ortho=function(out,left,right,bottom,top,near,far){var lr=1/(left-right),bt=1/(bottom-top),nf=1/(near-far);out[0]=-2*lr;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=-2*bt;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=2*nf;out[11]=0;out[12]=(left+right)*lr;out[13]=(top+bottom)*bt;out[14]=(far+near)*nf;out[15]=1;return out};mat4.lookAt=function(out,eye,center,up){var x0,x1,x2,y0,y1,y2,z0,z1,z2,len,eyex=eye[0],eyey=eye[1],eyez=eye[2],upx=up[0],upy=up[1],upz=up[2],centerx=center[0],centery=center[1],centerz=center[2];if(Math.abs(eyex-centerx)<GLMAT_EPSILON&&Math.abs(eyey-centery)<GLMAT_EPSILON&&Math.abs(eyez-centerz)<GLMAT_EPSILON){return mat4.identity(out)}z0=eyex-centerx;z1=eyey-centery;z2=eyez-centerz;len=1/Math.sqrt(z0*z0+z1*z1+z2*z2);z0*=len;z1*=len;z2*=len;x0=upy*z2-upz*z1;x1=upz*z0-upx*z2;x2=upx*z1-upy*z0;len=Math.sqrt(x0*x0+x1*x1+x2*x2);if(!len){x0=0;x1=0;x2=0}else{len=1/len;x0*=len;x1*=len;x2*=len}y0=z1*x2-z2*x1;y1=z2*x0-z0*x2;y2=z0*x1-z1*x0;len=Math.sqrt(y0*y0+y1*y1+y2*y2);if(!len){y0=0;y1=0;y2=0}else{len=1/len;y0*=len;y1*=len;y2*=len}out[0]=x0;out[1]=y0;out[2]=z0;out[3]=0;out[4]=x1;out[5]=y1;out[6]=z1;out[7]=0;out[8]=x2;out[9]=y2;out[10]=z2;out[11]=0;out[12]=-(x0*eyex+x1*eyey+x2*eyez);out[13]=-(y0*eyex+y1*eyey+y2*eyez);out[14]=-(z0*eyex+z1*eyey+z2*eyez);out[15]=1;return out};mat4.str=function(a){return"mat4("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+", "+a[4]+", "+a[5]+", "+a[6]+", "+a[7]+", "+a[8]+", "+a[9]+", "+a[10]+", "+a[11]+", "+a[12]+", "+a[13]+", "+a[14]+", "+a[15]+")"};if(typeof exports!=="undefined"){exports.mat4=mat4}var quat={};var quatIdentity=new Float32Array([0,0,0,1]);if(!GLMAT_EPSILON){var GLMAT_EPSILON=1e-6}quat.create=function(){return new Float32Array(quatIdentity)};quat.clone=vec4.clone;quat.fromValues=vec4.fromValues;quat.copy=vec4.copy;quat.set=vec4.set;quat.identity=function(out){out[0]=0;out[1]=0;out[2]=0;out[3]=1;return out};quat.setAxisAngle=function(out,axis,rad){rad=rad*.5;var s=Math.sin(rad);out[0]=s*axis[0];out[1]=s*axis[1];out[2]=s*axis[2];out[3]=Math.cos(rad);return out};quat.add=vec4.add;quat.mul=quat.multiply=function(out,a,b){var ax=a[0],ay=a[1],az=a[2],aw=a[3],bx=b[0],by=b[1],bz=b[2],bw=b[3];out[0]=ax*bw+aw*bx+ay*bz-az*by;out[1]=ay*bw+aw*by+az*bx-ax*bz;out[2]=az*bw+aw*bz+ax*by-ay*bx;out[3]=aw*bw-ax*bx-ay*by-az*bz;return out};quat.scale=vec4.scale;quat.rotateX=function(out,a,rad){rad*=.5;var ax=a[0],ay=a[1],az=a[2],aw=a[3],bx=Math.sin(rad),bw=Math.cos(rad);out[0]=ax*bw+aw*bx;out[1]=ay*bw+az*bx;out[2]=az*bw-ay*bx;out[3]=aw*bw-ax*bx;return out};quat.rotateY=function(out,a,rad){rad*=.5;var ax=a[0],ay=a[1],az=a[2],aw=a[3],by=Math.sin(rad),bw=Math.cos(rad);out[0]=ax*bw-az*by;out[1]=ay*bw+aw*by;out[2]=az*bw+ax*by;out[3]=aw*bw-ay*by;return out};quat.rotateZ=function(out,a,rad){rad*=.5;var ax=a[0],ay=a[1],az=a[2],aw=a[3],bz=Math.sin(rad),bw=Math.cos(rad);out[0]=ax*bw+ay*bz;out[1]=ay*bw-ax*bz;out[2]=az*bw+aw*bz;out[3]=aw*bw-az*bz;return out};quat.calculateW=function(out,a){var x=a[0],y=a[1],z=a[2];out[0]=x;out[1]=y;out[2]=z;out[3]=-Math.sqrt(Math.abs(1-x*x-y*y-z*z));return out};quat.dot=vec4.dot;quat.lerp=vec4.lerp;quat.slerp=function(out,a,b,t){var ax=a[0],ay=a[1],az=a[2],aw=a[3],bx=b[0],by=b[1],bz=b[2],bw=a[3];var cosHalfTheta=ax*bx+ay*by+az*bz+aw*bw,halfTheta,sinHalfTheta,ratioA,ratioB;if(Math.abs(cosHalfTheta)>=1){if(out!==a){out[0]=ax;out[1]=ay;out[2]=az;out[3]=aw}return out}halfTheta=Math.acos(cosHalfTheta);sinHalfTheta=Math.sqrt(1-cosHalfTheta*cosHalfTheta);if(Math.abs(sinHalfTheta)<.001){out[0]=ax*.5+bx*.5;out[1]=ay*.5+by*.5;out[2]=az*.5+bz*.5;out[3]=aw*.5+bw*.5;return out}ratioA=Math.sin((1-t)*halfTheta)/sinHalfTheta;ratioB=Math.sin(t*halfTheta)/sinHalfTheta;out[0]=ax*ratioA+bx*ratioB;out[1]=ay*ratioA+by*ratioB;out[2]=az*ratioA+bz*ratioB;out[3]=aw*ratioA+bw*ratioB;return out};quat.invert=function(out,a){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],dot=a0*a0+a1*a1+a2*a2+a3*a3,invDot=dot?1/dot:0;out[0]=-a0*invDot;out[1]=-a1*invDot;out[2]=-a2*invDot;out[3]=a3*invDot;return out};quat.conjugate=function(out,a){out[0]=-a[0];out[1]=-a[1];out[2]=-a[2];out[3]=a[3];return out};quat.len=quat.length=vec4.length;quat.sqrLen=quat.squaredLength=vec4.squaredLength;quat.normalize=vec4.normalize;quat.str=function(a){return"quat("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"};if(typeof exports!=="undefined"){exports.quat=quat}}(shim.exports)}()}()},{}],20:[function(require,module,exports){!function(){!function(){var root=this;var previousUnderscore=root._;var breaker={};var ArrayProto=Array.prototype,ObjProto=Object.prototype,FuncProto=Function.prototype;var push=ArrayProto.push,slice=ArrayProto.slice,concat=ArrayProto.concat,toString=ObjProto.toString,hasOwnProperty=ObjProto.hasOwnProperty;var nativeForEach=ArrayProto.forEach,nativeMap=ArrayProto.map,nativeReduce=ArrayProto.reduce,nativeReduceRight=ArrayProto.reduceRight,nativeFilter=ArrayProto.filter,nativeEvery=ArrayProto.every,nativeSome=ArrayProto.some,nativeIndexOf=ArrayProto.indexOf,nativeLastIndexOf=ArrayProto.lastIndexOf,nativeIsArray=Array.isArray,nativeKeys=Object.keys,nativeBind=FuncProto.bind;var _=function(obj){if(obj instanceof _)return obj;if(!(this instanceof _))return new _(obj);this._wrapped=obj};if(typeof exports!=="undefined"){if(typeof module!=="undefined"&&module.exports){exports=module.exports=_}exports._=_}else{root._=_}_.VERSION="1.4.4";var each=_.each=_.forEach=function(obj,iterator,context){if(obj==null)return;if(nativeForEach&&obj.forEach===nativeForEach){obj.forEach(iterator,context)}else if(obj.length===+obj.length){for(var i=0,l=obj.length;i<l;i++){if(iterator.call(context,obj[i],i,obj)===breaker)return}}else{for(var key in obj){if(_.has(obj,key)){if(iterator.call(context,obj[key],key,obj)===breaker)return}}}};_.map=_.collect=function(obj,iterator,context){var results=[];if(obj==null)return results;if(nativeMap&&obj.map===nativeMap)return obj.map(iterator,context);each(obj,function(value,index,list){results[results.length]=iterator.call(context,value,index,list)});return results};var reduceError="Reduce of empty array with no initial 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keys=[];for(var key in obj)if(_.has(obj,key))keys[keys.length]=key;return keys};_.values=function(obj){var values=[];for(var key in obj)if(_.has(obj,key))values.push(obj[key]);return values};_.pairs=function(obj){var pairs=[];for(var key in obj)if(_.has(obj,key))pairs.push([key,obj[key]]);return pairs};_.invert=function(obj){var result={};for(var key in obj)if(_.has(obj,key))result[obj[key]]=key;return result};_.functions=_.methods=function(obj){var names=[];for(var key in obj){if(_.isFunction(obj[key]))names.push(key)}return names.sort()};_.extend=function(obj){each(slice.call(arguments,1),function(source){if(source){for(var prop in source){obj[prop]=source[prop]}}});return obj};_.pick=function(obj){var copy={};var keys=concat.apply(ArrayProto,slice.call(arguments,1));each(keys,function(key){if(key in obj)copy[key]=obj[key]});return copy};_.omit=function(obj){var copy={};var keys=concat.apply(ArrayProto,slice.call(arguments,1));for(var key in obj){if(!_.contains(keys,key))copy[key]=obj[key]}return copy};_.defaults=function(obj){each(slice.call(arguments,1),function(source){if(source){for(var prop in source){if(obj[prop]==null)obj[prop]=source[prop]}}});return obj};_.clone=function(obj){if(!_.isObject(obj))return obj;return _.isArray(obj)?obj.slice():_.extend({},obj)};_.tap=function(obj,interceptor){interceptor(obj);return obj};var eq=function(a,b,aStack,bStack){if(a===b)return a!==0||1/a==1/b;if(a==null||b==null)return a===b;if(a instanceof _)a=a._wrapped;if(b instanceof _)b=b._wrapped;var className=toString.call(a);if(className!=toString.call(b))return false;switch(className){case"[object String]":return a==String(b);case"[object Number]":return a!=+a?b!=+b:a==0?1/a==1/b:a==+b;case"[object Date]":case"[object Boolean]":return+a==+b;case"[object RegExp]":return a.source==b.source&&a.global==b.global&&a.multiline==b.multiline&&a.ignoreCase==b.ignoreCase}if(typeof a!="object"||typeof b!="object")return false;var length=aStack.length;while(length--){if(aStack[length]==a)return bStack[length]==b}aStack.push(a);bStack.push(b);var size=0,result=true;if(className=="[object Array]"){size=a.length;result=size==b.length;if(result){while(size--){if(!(result=eq(a[size],b[size],aStack,bStack)))break}}}else{var aCtor=a.constructor,bCtor=b.constructor;if(aCtor!==bCtor&&!(_.isFunction(aCtor)&&aCtor instanceof aCtor&&_.isFunction(bCtor)&&bCtor instanceof bCtor)){return false}for(var key in a){if(_.has(a,key)){size++;if(!(result=_.has(b,key)&&eq(a[key],b[key],aStack,bStack)))break}}if(result){for(key in b){if(_.has(b,key)&&!size--)break}result=!size}}aStack.pop();bStack.pop();return result};_.isEqual=function(a,b){return eq(a,b,[],[])};_.isEmpty=function(obj){if(obj==null)return true;if(_.isArray(obj)||_.isString(obj))return obj.length===0;for(var key in obj)if(_.has(obj,key))return false;return true};_.isElement=function(obj){return!!(obj&&obj.nodeType===1)};_.isArray=nativeIsArray||function(obj){return toString.call(obj)=="[object Array]"};_.isObject=function(obj){return obj===Object(obj)};each(["Arguments","Function","String","Number","Date","RegExp"],function(name){_["is"+name]=function(obj){return toString.call(obj)=="[object "+name+"]"}});if(!_.isArguments(arguments)){_.isArguments=function(obj){return!!(obj&&_.has(obj,"callee"))}}if(typeof/./!=="function"){_.isFunction=function(obj){return typeof obj==="function"}}_.isFinite=function(obj){return isFinite(obj)&&!isNaN(parseFloat(obj))};_.isNaN=function(obj){return _.isNumber(obj)&&obj!=+obj};_.isBoolean=function(obj){return obj===true||obj===false||toString.call(obj)=="[object Boolean]"};_.isNull=function(obj){return obj===null};_.isUndefined=function(obj){return obj===void 0};_.has=function(obj,key){return hasOwnProperty.call(obj,key)};_.noConflict=function(){root._=previousUnderscore;return this};_.identity=function(value){return value};_.times=function(n,iterator,context){var accum=Array(n);for(var i=0;i<n;i++)accum[i]=iterator.call(context,i);return accum};_.random=function(min,max){if(max==null){max=min;min=0}return min+Math.floor(Math.random()*(max-min+1))};var entityMap={escape:{"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#x27;","/":"&#x2F;"}};entityMap.unescape=_.invert(entityMap.escape);var entityRegexes={escape:new RegExp("["+_.keys(entityMap.escape).join("")+"]","g"),unescape:new RegExp("("+_.keys(entityMap.unescape).join("|")+")","g")};_.each(["escape","unescape"],function(method){_[method]=function(string){if(string==null)return"";return(""+string).replace(entityRegexes[method],function(match){return entityMap[method][match]})}});_.result=function(object,property){if(object==null)return null;var value=object[property];return _.isFunction(value)?value.call(object):value};_.mixin=function(obj){each(_.functions(obj),function(name){var func=_[name]=obj[name];_.prototype[name]=function(){var args=[this._wrapped];push.apply(args,arguments);return result.call(this,func.apply(_,args))}})};var idCounter=0;_.uniqueId=function(prefix){var id=++idCounter+"";return prefix?prefix+id:id};_.templateSettings={evaluate:/<%([\s\S]+?)%>/g,interpolate:/<%=([\s\S]+?)%>/g,escape:/<%-([\s\S]+?)%>/g};var noMatch=/(.)^/;var escapes={"'":"'","\\":"\\","\r":"r","\n":"n"," ":"t","\u2028":"u2028","\u2029":"u2029"};var escaper=/\\|'|\r|\n|\t|\u2028|\u2029/g;_.template=function(text,data,settings){var render;settings=_.defaults({},settings,_.templateSettings);var matcher=new RegExp([(settings.escape||noMatch).source,(settings.interpolate||noMatch).source,(settings.evaluate||noMatch).source].join("|")+"|$","g");var index=0;var source="__p+='";text.replace(matcher,function(match,escape,interpolate,evaluate,offset){source+=text.slice(index,offset).replace(escaper,function(match){return"\\"+escapes[match]});if(escape){source+="'+\n((__t=("+escape+"))==null?'':_.escape(__t))+\n'"}if(interpolate){source+="'+\n((__t=("+interpolate+"))==null?'':__t)+\n'"}if(evaluate){source+="';\n"+evaluate+"\n__p+='"}index=offset+match.length;return match});source+="';\n";if(!settings.variable)source="with(obj||{}){\n"+source+"}\n";source="var __t,__p='',__j=Array.prototype.join,"+"print=function(){__p+=__j.call(arguments,'');};\n"+source+"return __p;\n";try{render=new Function(settings.variable||"obj","_",source)}catch(e){e.source=source;throw e}if(data)return render(data,_);var template=function(data){return render.call(this,data,_)};template.source="function("+(settings.variable||"obj")+"){\n"+source+"}";return template};_.chain=function(obj){return _(obj).chain()};var result=function(obj){return this._chain?_(obj).chain():obj};_.mixin(_);each(["pop","push","reverse","shift","sort","splice","unshift"],function(name){var method=ArrayProto[name];_.prototype[name]=function(){var obj=this._wrapped;method.apply(obj,arguments);if((name=="shift"||name=="splice")&&obj.length===0)delete obj[0];return result.call(this,obj)}});each(["concat","join","slice"],function(name){var method=ArrayProto[name];_.prototype[name]=function(){return result.call(this,method.apply(this._wrapped,arguments))}});_.extend(_.prototype,{chain:function(){this._chain=true;return this},value:function(){return this._wrapped}})}.call(this)}()},{}],21:[function(require,module,exports){window.requestAnimFrame=function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(callback){window.setTimeout(callback,1e3/60)}}();Leap=require("../lib/index")},{"../lib/index":8}]},{},[21]);
 
-
 /*
  * Leap Motion integration for Reveal.js.
  * James Sun  [sun16]
@@ -21,16 +23,17 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
  */
 
 (function () {
-  var controller  = new Leap.Controller({enableGestures: true}),
+  var controller  = new Leap.Controller({ enableGestures: true }),
       leapConfig  = Reveal.getConfig().leap,
-      leapDOM     = document.createElement('div'),
+      pointer     = document.createElement('div'),
       body        = document.body,
       lastGesture = 0,
       config      = {
-        naturalSwipe   : true,
-        pointerDefault : 15,
-        pointerColor   : '#00aaff',
-        pointerOpacity : 0.75
+        naturalSwipe   : true,      // Swipe as if it were a touch screen.
+        pointerDefault : 15,        // Default height/width of the pointer.
+        pointerColor   : '#00aaff', // Default color of the pointer.
+        pointerOpacity : 0.75,      // Default opacity of the pointer.
+        gestureDelay   : 500        // How long to delay between gestures.
       },
       now;
 
@@ -41,22 +44,18 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
         }
       }
 
-      leapDOM.id = 'leap';
+      pointer.id = 'leap';
 
-      leapDOM.style.filter          = 'alpha(opacity="'+ config.pointerOpacity +'")';
-      leapDOM.style.opacity         = config.pointerOpacity;
-      leapDOM.style.backgroundColor = config.pointerColor;
+      pointer.style.filter          = 'alpha(opacity="' + config.pointerOpacity * 100 + '")';
+      pointer.style.opacity         = config.pointerOpacity;
+      pointer.style.backgroundColor = config.pointerColor;
 
-      body.appendChild(leapDOM);
+      body.appendChild(pointer);
 
   controller.on('frame', function (frame) {
     // Timing code to rate limit gesture execution
     now = new Date().getTime();
 
-    if( lastGesture === 0 ) {
-      lastGesture = now;
-    }
-
     // Pointer code
     if ( frame.hands.length === 1 && frame.fingers.length === 1 ) {
       var size  =  -2 * frame.hands[0].palmPosition[2];
@@ -65,29 +64,31 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
         size = config.pointerDefault
       }
 
-      leapDOM.style.bottom =
+      pointer.style.bottom =
         frame.hands[0].palmPosition[1] * (body.offsetHeight / 100) - body.offsetHeight + 'px';
 
-      leapDOM.style.left =
+      pointer.style.left =
         frame.hands[0].palmPosition[0] * (body.offsetWidth / 100) + (body.offsetWidth / 2) + 'px';
 
-      leapDOM.style.visibility   = 'visible';
-      leapDOM.style.width        = size     + 'px';
-      leapDOM.style.height       = size     + 'px';
-      leapDOM.style.borderRadius = size - 5 + 'px';
-    } else {
+      pointer.style.visibility   = 'visible';
+      pointer.style.width        = size     + 'px';
+      pointer.style.height       = size     + 'px';
+      pointer.style.borderRadius = size - 5 + 'px';
+    } 
+    else {
       // Hide pointer on exit
-      leapDOM.style.visibility = 'hidden';
+      pointer.style.visibility = 'hidden';
     }
     
     // Gestures
-    if ( (now - lastGesture) > 500 && frame.gestures.length > 0 ) {
+    if ( frame.gestures.length > 0 && (now - lastGesture) > config.gestureDelay ) {
       var gesture = frame.gestures[0];
 
       // One hand gestures
       if( frame.hands.length === 1 ) {
         // Swipe gestures. 2+ fingers.
-        if ( frame.fingers.length > 1 && gesture.speed > 1000 && gesture.type === 'swipe' ) {
+        if ( frame.fingers.length > 1 && gesture.type === 'swipe' ) {
+          // Define here since some gestures will throw undefined for these.
           var x = gesture.direction[0],
               y = gesture.direction[1];
 
@@ -95,16 +96,19 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
           if ( Math.abs(x) > Math.abs(y) ) {
             if ( x > 0 ) {
               config.naturalSwipe ? Reveal.left() : Reveal.right();
-            } else {
+            }
+            else {
               config.naturalSwipe ? Reveal.right() : Reveal.left();
             }
 
             lastGesture = now;
           // Up/down swipe gestures
-          } else {
+          }
+          else {
             if ( y > 0 ) {
               config.naturalSwipe ? Reveal.down() : Reveal.up();
-            } else {
+            }
+            else {
               config.naturalSwipe ? Reveal.up() : Reveal.down();
             }
 
@@ -112,7 +116,8 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
           }
         }
         // Two hand gestures
-      } else if( frame.hands.length == 2 ) {
+      }
+      else if ( frame.hands.length == 2 ) {
         // All upwards 2 hand gestures = toggle overview
         if ( gesture.direction[1] > 0 ) {
           Reveal.toggleOverview();

From 1d895bad612c218f125c43b8195ab475be625bf0 Mon Sep 17 00:00:00 2001
From: Rory Hardy <rory.cronin-hardy@cerner.com>
Date: Tue, 6 Aug 2013 00:11:58 -0500
Subject: [PATCH 09/13] Docs and updates Updated README.md to mention the leap
 plugin. Removed leap settings from index.html. Better variable naming in
 leap.js

modified:   README.md
modified:   index.html
modified:   plugin/leap/leap.js
---
 README.md           | 42 ++++++++++++++++++++++++++++++++++++++++++
 index.html          |  3 +--
 plugin/leap/leap.js |  6 +++---
 3 files changed, 46 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 04313dfd..15cabcff 100644
--- a/README.md
+++ b/README.md
@@ -625,6 +625,48 @@ Reveal.initialize({
 });
 ```
 
+## Leap Motion
+The Leap Motion plugin lets you utilize your [Leap Motion](https://www.leapmotion.com/) device to control basic navigation of your presentation. The gestures currently supported are:
+
+##### 1 hand + 1 finger
+* Pointer &mdash; Point to anything on screen. Move your finger past the device to expand the pointer.
+
+##### 1 hand + 2 or more fingers
+
+* Left
+* Right
+* Up
+* down
+
+Navigate through your slides. See config options to invert movements.
+
+##### 2 hands
+* Up
+
+Toggle the overview mode. Do it a second time to exit the overview.
+
+#### Config Options
+You can edit the following options:
+* naturalSwipe: Defaults to true. Swipe as though you were touching a touch screen. Set to false to invert.
+* pointerSize: Defaults to 15. The minimum height and width of the pointer.
+* pointerColor: Defaults to #00aaff. The color of the pointer.
+* pointerOpacity: Defaults to 0.75. The opacity of the pointer.
+* gestureDelay: Defaults to 500. How long to delay between gestures in milliseconds.
+
+Example configuration:
+```js
+Reveal.initialize({
+	// other options
+	leap: {
+		naturalSwipe   : false,    // Invert swipe gestures
+		pointerOpacity : 0.5,      // Set pointer opacity to 0.5
+		pointerColor   : '#d80000' // Red pointer
+	}
+	
+	// Optional libraries used to extend on reveal.js
+	{ src: 'plugin/leap/leap.js', async: true }
+```
+
 ## Installation
 
 The **basic setup** is for authoring presentations only. The **full setup** gives you access to all reveal.js features as well as the development tasks needed to make changes to the source.
diff --git a/index.html b/index.html
index 9ee09411..fab2780d 100644
--- a/index.html
+++ b/index.html
@@ -370,8 +370,7 @@ function linkify( selector ) {
 					{ src: 'plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
 					{ src: 'plugin/highlight/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } },
 					{ src: 'plugin/zoom-js/zoom.js', async: true, condition: function() { return !!document.body.classList; } },
-					{ src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } },
-					{ src: 'plugin/leap/leap.js', async: true, }
+					{ src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } }
 					// { src: 'plugin/search/search.js', async: true, condition: function() { return !!document.body.classList; } }
 					// { src: 'plugin/remotes/remotes.js', async: true, condition: function() { return !!document.body.classList; } }
 				]
diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
index 072f73da..a6051535 100644
--- a/plugin/leap/leap.js
+++ b/plugin/leap/leap.js
@@ -30,7 +30,7 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
       lastGesture = 0,
       config      = {
         naturalSwipe   : true,      // Swipe as if it were a touch screen.
-        pointerDefault : 15,        // Default height/width of the pointer.
+        pointerSize    : 15,        // Default height/width of the pointer.
         pointerColor   : '#00aaff', // Default color of the pointer.
         pointerOpacity : 0.75,      // Default opacity of the pointer.
         gestureDelay   : 500        // How long to delay between gestures.
@@ -60,8 +60,8 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
     if ( frame.hands.length === 1 && frame.fingers.length === 1 ) {
       var size  =  -2 * frame.hands[0].palmPosition[2];
 
-      if ( size < config.pointerDefault ) {
-        size = config.pointerDefault
+      if ( size < config.pointerSize ) {
+        size = config.pointerSize
       }
 
       pointer.style.bottom =

From bd543e5ceec87927ea8be959bddcf8bc3c4a4b7d Mon Sep 17 00:00:00 2001
From: Rory Hardy <rory.cronin-hardy@cerner.com>
Date: Wed, 7 Aug 2013 21:53:31 -0500
Subject: [PATCH 10/13] Various updates

Enhanced the pointer.
Cleaned up the code.
Added additional optional parameters.
Updated documentation.

modified:   README.md
modified:   index.html
modified:   plugin/leap/leap.js
---
 README.md           |  14 +++---
 index.html          |   3 +-
 plugin/leap/leap.js | 103 +++++++++++++++++++++++++++-----------------
 3 files changed, 74 insertions(+), 46 deletions(-)

diff --git a/README.md b/README.md
index 15cabcff..c740bca1 100644
--- a/README.md
+++ b/README.md
@@ -628,10 +628,10 @@ Reveal.initialize({
 ## Leap Motion
 The Leap Motion plugin lets you utilize your [Leap Motion](https://www.leapmotion.com/) device to control basic navigation of your presentation. The gestures currently supported are:
 
-##### 1 hand + 1 finger
+##### 1 to 2 fingers
 * Pointer &mdash; Point to anything on screen. Move your finger past the device to expand the pointer.
 
-##### 1 hand + 2 or more fingers
+##### 1 hand + 3 or more fingers
 
 * Left
 * Right
@@ -647,11 +647,13 @@ Toggle the overview mode. Do it a second time to exit the overview.
 
 #### Config Options
 You can edit the following options:
-* naturalSwipe: Defaults to true. Swipe as though you were touching a touch screen. Set to false to invert.
-* pointerSize: Defaults to 15. The minimum height and width of the pointer.
-* pointerColor: Defaults to #00aaff. The color of the pointer.
-* pointerOpacity: Defaults to 0.75. The opacity of the pointer.
+* autoCenter: Defaults to true. Center the pointer based on where you put your finger into the leap motions detection field.
 * gestureDelay: Defaults to 500. How long to delay between gestures in milliseconds.
+* naturalSwipe: Defaults to true. Swipe as though you were touching a touch screen. Set to false to invert.
+* pointerColor: Defaults to #00aaff. The color of the pointer.
+* pointerOpacity: Defaults to 0.7. The opacity of the pointer.
+* pointerSize: Defaults to 15. The minimum height and width of the pointer.
+* pointerTolerance: Defaults to 120. Bigger = slower pointer.
 
 Example configuration:
 ```js
diff --git a/index.html b/index.html
index fab2780d..5aa8dfe0 100644
--- a/index.html
+++ b/index.html
@@ -370,7 +370,8 @@ function linkify( selector ) {
 					{ src: 'plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
 					{ src: 'plugin/highlight/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } },
 					{ src: 'plugin/zoom-js/zoom.js', async: true, condition: function() { return !!document.body.classList; } },
-					{ src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } }
+					{ src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } },
+					{ src: 'plugin/leap/leap.js', async: true }
 					// { src: 'plugin/search/search.js', async: true, condition: function() { return !!document.body.classList; } }
 					// { src: 'plugin/remotes/remotes.js', async: true, condition: function() { return !!document.body.classList; } }
 				]
diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
index a6051535..8ec51eca 100644
--- a/plugin/leap/leap.js
+++ b/plugin/leap/leap.js
@@ -23,78 +23,103 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
  */
 
 (function () {
-  var controller  = new Leap.Controller({ enableGestures: true }),
-      leapConfig  = Reveal.getConfig().leap,
-      pointer     = document.createElement('div'),
-      body        = document.body,
+  var body        = document.body,
+      controller  = new Leap.Controller({ enableGestures: true }),
       lastGesture = 0,
+      leapConfig  = Reveal.getConfig().leap,
+      pointer     = document.createElement( 'div' ),
       config      = {
-        naturalSwipe   : true,      // Swipe as if it were a touch screen.
-        pointerSize    : 15,        // Default height/width of the pointer.
-        pointerColor   : '#00aaff', // Default color of the pointer.
-        pointerOpacity : 0.75,      // Default opacity of the pointer.
-        gestureDelay   : 500        // How long to delay between gestures.
+        autoCenter       : true,      // Center pointer around detected position.
+        gestureDelay     : 500,       // How long to delay between gestures.
+        naturalSwipe     : true,      // Swipe as if it were a touch screen.
+        pointerColor     : '#00aaff', // Default color of the pointer.
+        pointerOpacity   : 0.7,       // Default opacity of the pointer.
+        pointerSize      : 15,        // Default height/width of the pointer.
+        pointerTolerance : 120        // Bigger = slower pointer.
       },
-      now;
+      now,
+      entered;
 
       // Merge user defined settings with defaults
-      if ( leapConfig ) {
-        for (key in leapConfig) {
+      if( leapConfig ) {
+        for( key in leapConfig ) {
           config[key] = leapConfig[key];
         }
       }
 
       pointer.id = 'leap';
 
-      pointer.style.filter          = 'alpha(opacity="' + config.pointerOpacity * 100 + '")';
       pointer.style.opacity         = config.pointerOpacity;
       pointer.style.backgroundColor = config.pointerColor;
 
-      body.appendChild(pointer);
+      body.appendChild( pointer );
 
-  controller.on('frame', function (frame) {
+  // Leap's loop
+  controller.on( 'frame', function ( frame ) {
     // Timing code to rate limit gesture execution
     now = new Date().getTime();
 
-    // Pointer code
-    if ( frame.hands.length === 1 && frame.fingers.length === 1 ) {
-      var size  =  -2 * frame.hands[0].palmPosition[2];
+    // Pointer: 1 to 2 fingers. Strictly one finger works but may cause innaccuracies.
+    // The innaccuracies were observed on a development model and may not be an issue with consumer models.
+    if( frame.fingers.length > 0 && frame.fingers.length < 3 ) {
+      // Invert direction and multiply by 3 for greater effect.
+      var size = -3 * frame.fingers[0].tipPosition[2];
 
-      if ( size < config.pointerSize ) {
-        size = config.pointerSize
+      if( size < config.pointerSize ) {
+        size = config.pointerSize;
       }
 
-      pointer.style.bottom =
-        frame.hands[0].palmPosition[1] * (body.offsetHeight / 100) - body.offsetHeight + 'px';
-
-      pointer.style.left =
-        frame.hands[0].palmPosition[0] * (body.offsetWidth / 100) + (body.offsetWidth / 2) + 'px';
-
-      pointer.style.visibility   = 'visible';
       pointer.style.width        = size     + 'px';
       pointer.style.height       = size     + 'px';
       pointer.style.borderRadius = size - 5 + 'px';
-    } 
+      pointer.style.visibility   = 'visible';
+
+      tipPosition = frame.fingers[0].tipPosition;
+
+      if( config.autoCenter ) {
+        // Check whether the finger has entered the z range of the Leap Motion. Used for the autoCenter option.
+        if( !entered ) {
+          entered         = true;
+          enteredPosition = frame.fingers[0].tipPosition;
+        }
+
+        pointer.style.top =
+          (-1 * (( tipPosition[1] - enteredPosition[1] ) * body.offsetHeight / config.pointerTolerance )) +
+            ( body.offsetHeight / 2 ) + 'px';
+
+        pointer.style.left =
+          (( tipPosition[0] - enteredPosition[0] ) * body.offsetWidth / config.pointerTolerance ) +
+            ( body.offsetWidth / 2 ) + 'px';
+      }
+      else {
+        pointer.style.top  = ( 1 - (( tipPosition[1] - 50) / config.pointerTolerance )) *
+          body.offsetHeight + 'px';
+
+        pointer.style.left = ( tipPosition[0] * body.offsetWidth / config.pointerTolerance ) +
+          ( body.offsetWidth / 2 ) + 'px';
+      }
+    }
     else {
       // Hide pointer on exit
+      entered                  = false;
       pointer.style.visibility = 'hidden';
     }
-    
+
     // Gestures
-    if ( frame.gestures.length > 0 && (now - lastGesture) > config.gestureDelay ) {
+    if( frame.gestures.length > 0 && (now - lastGesture) > config.gestureDelay ) {
       var gesture = frame.gestures[0];
 
       // One hand gestures
       if( frame.hands.length === 1 ) {
-        // Swipe gestures. 2+ fingers.
-        if ( frame.fingers.length > 1 && gesture.type === 'swipe' ) {
+        // Swipe gestures. 3+ fingers.
+        if( frame.fingers.length > 2 && gesture.type === 'swipe' ) {
           // Define here since some gestures will throw undefined for these.
           var x = gesture.direction[0],
               y = gesture.direction[1];
 
           // Left/right swipe gestures
-          if ( Math.abs(x) > Math.abs(y) ) {
-            if ( x > 0 ) {
+          if( Math.abs( x ) > Math.abs( y )) {
+            if( x > 0 ) {
               config.naturalSwipe ? Reveal.left() : Reveal.right();
             }
             else {
@@ -105,7 +130,7 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
           // Up/down swipe gestures
           }
           else {
-            if ( y > 0 ) {
+            if( y > 0 ) {
               config.naturalSwipe ? Reveal.down() : Reveal.up();
             }
             else {
@@ -115,11 +140,11 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
             lastGesture = now;
           }
         }
-        // Two hand gestures
       }
-      else if ( frame.hands.length == 2 ) {
-        // All upwards 2 hand gestures = toggle overview
-        if ( gesture.direction[1] > 0 ) {
+      // Two hand gestures
+      else if( frame.hands.length === 2 ) {
+        // Upward two hand swipe gesture
+        if( gesture.direction[1] > 0 && gesture.type === 'swipe' ) {
           Reveal.toggleOverview();
         }
 

From 1e1919274c4c9e3baa0fa2c3424b3aedd470ed34 Mon Sep 17 00:00:00 2001
From: Rory Hardy <rory.cronin-hardy@cerner.com>
Date: Wed, 7 Aug 2013 22:07:02 -0500
Subject: [PATCH 11/13] Removed redundant code

modified:   plugin/leap/leap.js
---
 plugin/leap/leap.js | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
index 8ec51eca..b2f91de5 100644
--- a/plugin/leap/leap.js
+++ b/plugin/leap/leap.js
@@ -34,7 +34,7 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
         naturalSwipe     : true,      // Swipe as if it were a touch screen.
         pointerColor     : '#00aaff', // Default color of the pointer.
         pointerOpacity   : 0.7,       // Default opacity of the pointer.
-        pointerSize      : 15,        // Default height/width of the pointer.
+        pointerSize      : 15,        // Default minimum height/width of the pointer.
         pointerTolerance : 120        // Bigger = slower pointer.
       },
       now,
@@ -125,10 +125,8 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
             else {
               config.naturalSwipe ? Reveal.right() : Reveal.left();
             }
-
-            lastGesture = now;
-          // Up/down swipe gestures
           }
+          // Up/down swipe gestures
           else {
             if( y > 0 ) {
               config.naturalSwipe ? Reveal.down() : Reveal.up();
@@ -136,9 +134,9 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
             else {
               config.naturalSwipe ? Reveal.up() : Reveal.down();
             }
-
-            lastGesture = now;
           }
+
+          lastGesture = now;
         }
       }
       // Two hand gestures

From 0a78486b22ff904c6bf5c54efcb726da38974cdd Mon Sep 17 00:00:00 2001
From: Rory Hardy <gneatgeek@gmail.com>
Date: Wed, 7 Aug 2013 22:06:41 -0500
Subject: [PATCH 12/13] Update index.html

Commented out leap plugin inclusion.
---
 index.html | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/index.html b/index.html
index 5aa8dfe0..8df38ed0 100644
--- a/index.html
+++ b/index.html
@@ -370,8 +370,8 @@ function linkify( selector ) {
 					{ src: 'plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
 					{ src: 'plugin/highlight/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } },
 					{ src: 'plugin/zoom-js/zoom.js', async: true, condition: function() { return !!document.body.classList; } },
-					{ src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } },
-					{ src: 'plugin/leap/leap.js', async: true }
+					{ src: 'plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } }
+					// { src: 'plugin/leap/leap.js', async: true }
 					// { src: 'plugin/search/search.js', async: true, condition: function() { return !!document.body.classList; } }
 					// { src: 'plugin/remotes/remotes.js', async: true, condition: function() { return !!document.body.classList; } }
 				]

From b2c6ccc91205ef1b6e2a6ddc720458af443f0b84 Mon Sep 17 00:00:00 2001
From: Rory Hardy <rory.cronin-hardy@cerner.com>
Date: Wed, 7 Aug 2013 22:40:07 -0500
Subject: [PATCH 13/13] Minor update

Made sure all vars are declared with the var keyword.
	modified:   plugin/leap/leap.js
---
 plugin/leap/leap.js | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/plugin/leap/leap.js b/plugin/leap/leap.js
index b2f91de5..8ba00636 100644
--- a/plugin/leap/leap.js
+++ b/plugin/leap/leap.js
@@ -37,8 +37,7 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
         pointerSize      : 15,        // Default minimum height/width of the pointer.
         pointerTolerance : 120        // Bigger = slower pointer.
       },
-      now,
-      entered;
+      entered, enteredPosition, now, size, tipPosition; // Other vars we need later, but don't need to redeclare.
 
       // Merge user defined settings with defaults
       if( leapConfig ) {
@@ -63,7 +62,7 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
     // The innaccuracies were observed on a development model and may not be an issue with consumer models.
     if( frame.fingers.length > 0 && frame.fingers.length < 3 ) {
       // Invert direction and multiply by 3 for greater effect.
-      var size = -3 * frame.fingers[0].tipPosition[2];
+      size = -3 * frame.fingers[0].tipPosition[2];
 
       if( size < config.pointerSize ) {
         size = config.pointerSize;
@@ -74,9 +73,9 @@ var b=right.criteria;if(a!==b){if(a>b||a===void 0)return 1;if(a<b||b===void 0)re
       pointer.style.borderRadius = size - 5 + 'px';
       pointer.style.visibility   = 'visible';
 
-      tipPosition = frame.fingers[0].tipPosition;
-
       if( config.autoCenter ) {
+        tipPosition = frame.fingers[0].tipPosition;
+
         // Check whether the finger has entered the z range of the Leap Motion. Used for the autoCenter option.
         if( !entered ) {
           entered         = true;