matter.min.js

(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Matter=f()}})(function(){var define,module,exports;return function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}({1:[function(_dereq_,module,exports){var Body={};module.exports=Body;var Vertices=_dereq_("../geometry/Vertices");var Vector=_dereq_("../geometry/Vector");var Sleeping=_dereq_("../core/Sleeping");var Render=_dereq_("../render/Render");var Common=_dereq_("../core/Common");var Bounds=_dereq_("../geometry/Bounds");var Axes=_dereq_("../geometry/Axes");(function(){Body._inertiaScale=4;Body._nextCollidingGroupId=1;Body._nextNonCollidingGroupId=-1;Body._nextCategory=1;Body.create=function(options){var defaults={id:Common.nextId(),type:"body",label:"Body",parts:[],plugin:{},angle:0,vertices:Vertices.fromPath("L 0 0 L 40 0 L 40 40 L 0 40"),position:{x:0,y:0},force:{x:0,y:0},torque:0,positionImpulse:{x:0,y:0},constraintImpulse:{x:0,y:0,angle:0},totalContacts:0,speed:0,angularSpeed:0,velocity:{x:0,y:0},angularVelocity:0,isSensor:false,isStatic:false,isSleeping:false,motion:0,sleepThreshold:60,density:.001,restitution:0,friction:.1,frictionStatic:.5,frictionAir:.01,collisionFilter:{category:1,mask:4294967295,group:0},slop:.05,timeScale:1,render:{visible:true,opacity:1,sprite:{xScale:1,yScale:1,xOffset:0,yOffset:0},lineWidth:0}};var body=Common.extend(defaults,options);_initProperties(body,options);return body};Body.nextGroup=function(isNonColliding){if(isNonColliding)return Body._nextNonCollidingGroupId--;return Body._nextCollidingGroupId++};Body.nextCategory=function(){Body._nextCategory=Body._nextCategory<<1;return Body._nextCategory};var _initProperties=function(body,options){options=options||{};Body.set(body,{bounds:body.bounds||Bounds.create(body.vertices),positionPrev:body.positionPrev||Vector.clone(body.position),anglePrev:body.anglePrev||body.angle,vertices:body.vertices,parts:body.parts||[body],isStatic:body.isStatic,isSleeping:body.isSleeping,parent:body.parent||body});Vertices.rotate(body.vertices,body.angle,body.position);Axes.rotate(body.axes,body.angle);Bounds.update(body.bounds,body.vertices,body.velocity);Body.set(body,{axes:options.axes||body.axes,area:options.area||body.area,mass:options.mass||body.mass,inertia:options.inertia||body.inertia});var defaultFillStyle=body.isStatic?"#2e2b44":Common.choose(["#006BA6","#0496FF","#FFBC42","#D81159","#8F2D56"]),defaultStrokeStyle=Common.shadeColor(defaultFillStyle,-20);body.render.fillStyle=body.render.fillStyle||defaultFillStyle;body.render.strokeStyle=body.render.strokeStyle||defaultStrokeStyle;body.render.sprite.xOffset+=-(body.bounds.min.x-body.position.x)/(body.bounds.max.x-body.bounds.min.x);body.render.sprite.yOffset+=-(body.bounds.min.y-body.position.y)/(body.bounds.max.y-body.bounds.min.y)};Body.set=function(body,settings,value){var property;if(typeof settings==="string"){property=settings;settings={};settings[property]=value}for(property in settings){value=settings[property];if(!settings.hasOwnProperty(property))continue;switch(property){case"isStatic":Body.setStatic(body,value);break;case"isSleeping":Sleeping.set(body,value);break;case"mass":Body.setMass(body,value);break;case"density":Body.setDensity(body,value);break;case"inertia":Body.setInertia(body,value);break;case"vertices":Body.setVertices(body,value);break;case"position":Body.setPosition(body,value);break;case"angle":Body.setAngle(body,value);break;case"velocity":Body.setVelocity(body,value);break;case"angularVelocity":Body.setAngularVelocity(body,value);break;case"parts":Body.setParts(body,value);break;default:body[property]=value}}};Body.setStatic=function(body,isStatic){for(var i=0;i<body.parts.length;i++){var part=body.parts[i];part.isStatic=isStatic;if(isStatic){part._original={restitution:part.restitution,friction:part.friction,mass:part.mass,inertia:part.inertia,density:part.density,inverseMass:part.inverseMass,inverseInertia:part.inverseInertia};part.restitution=0;part.friction=1;part.mass=part.inertia=part.density=Infinity;part.inverseMass=part.inverseInertia=0;part.positionPrev.x=part.position.x;part.positionPrev.y=part.position.y;part.anglePrev=part.angle;part.angularVelocity=0;part.speed=0;part.angularSpeed=0;part.motion=0}else if(part._original){part.restitution=part._original.restitution;part.friction=part._original.friction;part.mass=part._original.mass;part.inertia=part._original.inertia;part.density=part._original.density;part.inverseMass=part._original.inverseMass;part.inverseInertia=part._original.inverseInertia;delete part._original}}};Body.setMass=function(body,mass){body.mass=mass;body.inverseMass=1/body.mass;body.density=body.mass/body.area};Body.setDensity=function(body,density){Body.setMass(body,density*body.area);body.density=density};Body.setInertia=function(body,inertia){body.inertia=inertia;body.inverseInertia=1/body.inertia};Body.setVertices=function(body,vertices){if(vertices[0].body===body){body.vertices=vertices}else{body.vertices=Vertices.create(vertices,body)}body.axes=Axes.fromVertices(body.vertices);body.area=Vertices.area(body.vertices);Body.setMass(body,body.density*body.area);var centre=Vertices.centre(body.vertices);Vertices.translate(body.vertices,centre,-1);Body.setInertia(body,Body._inertiaScale*Vertices.inertia(body.vertices,body.mass));Vertices.translate(body.vertices,body.position);Bounds.update(body.bounds,body.vertices,body.velocity)};Body.setParts=function(body,parts,autoHull){var i;parts=parts.slice(0);body.parts.length=0;body.parts.push(body);body.parent=body;for(i=0;i<parts.length;i++){var part=parts[i];if(part!==body){part.parent=body;body.parts.push(part)}}if(body.parts.length===1)return;autoHull=typeof autoHull!=="undefined"?autoHull:true;if(autoHull){var vertices=[];for(i=0;i<parts.length;i++){vertices=vertices.concat(parts[i].vertices)}Vertices.clockwiseSort(vertices);var hull=Vertices.hull(vertices),hullCentre=Vertices.centre(hull);Body.setVertices(body,hull);Vertices.translate(body.vertices,hullCentre)}var total=_totalProperties(body);body.area=total.area;body.parent=body;body.position.x=total.centre.x;body.position.y=total.centre.y;body.positionPrev.x=total.centre.x;body.positionPrev.y=total.centre.y;Body.setMass(body,total.mass);Body.setInertia(body,total.inertia);Body.setPosition(body,total.centre)};Body.setPosition=function(body,position){var delta=Vector.sub(position,body.position);body.positionPrev.x+=delta.x;body.positionPrev.y+=delta.y;for(var i=0;i<body.parts.length;i++){var part=body.parts[i];part.position.x+=delta.x;part.position.y+=delta.y;Vertices.translate(part.vertices,delta);Bounds.update(part.bounds,part.vertices,body.velocity)}};Body.setAngle=function(body,angle){var delta=angle-body.angle;body.anglePrev+=delta;for(var i=0;i<body.parts.length;i++){var part=body.parts[i];part.angle+=delta;Vertices.rotate(part.vertices,delta,body.position);Axes.rotate(part.axes,delta);Bounds.update(part.bounds,part.vertices,body.velocity);if(i>0){Vector.rotateAbout(part.position,delta,body.position,part.position)}}};Body.setVelocity=function(body,velocity){body.positionPrev.x=body.position.x-velocity.x;body.positionPrev.y=body.position.y-velocity.y;body.velocity.x=velocity.x;body.velocity.y=velocity.y;body.speed=Vector.magnitude(body.velocity)};Body.setAngularVelocity=function(body,velocity){body.anglePrev=body.angle-velocity;body.angularVelocity=velocity;body.angularSpeed=Math.abs(body.angularVelocity)};Body.translate=function(body,translation){Body.setPosition(body,Vector.add(body.position,translation))};Body.rotate=function(body,rotation){Body.setAngle(body,body.angle+rotation)};Body.scale=function(body,scaleX,scaleY,point){for(var i=0;i<body.parts.length;i++){var part=body.parts[i];Vertices.scale(part.vertices,scaleX,scaleY,body.position);part.axes=Axes.fromVertices(part.vertices);if(!body.isStatic){part.area=Vertices.area(part.vertices);Body.setMass(part,body.density*part.area);Vertices.translate(part.vertices,{x:-part.position.x,y:-part.position.y});Body.setInertia(part,Vertices.inertia(part.vertices,part.mass));Vertices.translate(part.vertices,{x:part.position.x,y:part.position.y})}Bounds.update(part.bounds,part.vertices,body.velocity)}if(body.circleRadius){if(scaleX===scaleY){body.circleRadius*=scaleX}else{body.circleRadius=null}}if(!body.isStatic){var total=_totalProperties(body);body.area=total.area;Body.setMass(body,total.mass);Body.setInertia(body,total.inertia)}};Body.update=function(body,deltaTime,timeScale,correction){var deltaTimeSquared=Math.pow(deltaTime*timeScale*body.timeScale,2);var frictionAir=1-body.frictionAir*timeScale*body.timeScale,velocityPrevX=body.position.x-body.positionPrev.x,velocityPrevY=body.position.y-body.positionPrev.y;body.velocity.x=velocityPrevX*frictionAir*correction+body.force.x/body.mass*deltaTimeSquared;body.velocity.y=velocityPrevY*frictionAir*correction+body.force.y/body.mass*deltaTimeSquared;body.positionPrev.x=body.position.x;body.positionPrev.y=body.position.y;body.position.x+=body.velocity.x;body.position.y+=body.velocity.y;body.angularVelocity=(body.angle-body.anglePrev)*frictionAir*correction+body.torque/body.inertia*deltaTimeSquared;body.anglePrev=body.angle;body.angle+=body.angularVelocity;body.speed=Vector.magnitude(body.velocity);body.angularSpeed=Math.abs(body.angularVelocity);for(var i=0;i<body.parts.length;i++){var part=body.parts[i];Vertices.translate(part.vertices,body.velocity);if(i>0){part.position.x+=body.velocity.x;part.position.y+=body.velocity.y}if(body.angularVelocity!==0){Vertices.rotate(part.vertices,body.angularVelocity,body.position);Axes.rotate(part.axes,body.angularVelocity);if(i>0){Vector.rotateAbout(part.position,body.angularVelocity,body.position,part.position)}}Bounds.update(part.bounds,part.vertices,body.velocity)}};Body.applyForce=function(body,position,force){body.force.x+=force.x;body.force.y+=force.y;var offset={x:position.x-body.position.x,y:position.y-body.position.y};body.torque+=offset.x*force.y-offset.y*force.x};var _totalProperties=function(body){var properties={mass:0,area:0,inertia:0,centre:{x:0,y:0}};for(var i=body.parts.length===1?0:1;i<body.parts.length;i++){var part=body.parts[i];properties.mass+=part.mass;properties.area+=part.area;properties.inertia+=part.inertia;properties.centre=Vector.add(properties.centre,Vector.mult(part.position,part.mass!==Infinity?part.mass:1))}properties.centre=Vector.div(properties.centre,properties.mass!==Infinity?properties.mass:body.parts.length);return properties}})()},{"../core/Common":14,"../core/Sleeping":22,"../geometry/Axes":25,"../geometry/Bounds":26,"../geometry/Vector":28,"../geometry/Vertices":29,"../render/Render":31}],2:[function(_dereq_,module,exports){var Composite={};module.exports=Composite;var Events=_dereq_("../core/Events");var Common=_dereq_("../core/Common");var Body=_dereq_("./Body");(function(){Composite.create=function(options){return Common.extend({id:Common.nextId(),type:"composite",parent:null,isModified:false,bodies:[],constraints:[],composites:[],label:"Composite",plugin:{}},options)};Composite.setModified=function(composite,isModified,updateParents,updateChildren){composite.isModified=isModified;if(updateParents&&composite.parent){Composite.setModified(composite.parent,isModified,updateParents,updateChildren)}if(updateChildren){for(var i=0;i<composite.composites.length;i++){var childComposite=composite.composites[i];Composite.setModified(childComposite,isModified,updateParents,updateChildren)}}};Composite.add=function(composite,object){var objects=[].concat(object);Events.trigger(composite,"beforeAdd",{object:object});for(var i=0;i<objects.length;i++){var obj=objects[i];switch(obj.type){case"body":if(obj.parent!==obj){Common.warn("Composite.add: skipped adding a compound body part (you must add its parent instead)");break}Composite.addBody(composite,obj);break;case"constraint":Composite.addConstraint(composite,obj);break;case"composite":Composite.addComposite(composite,obj);break;case"mouseConstraint":Composite.addConstraint(composite,obj.constraint);break}}Events.trigger(composite,"afterAdd",{object:object});return composite};Composite.remove=function(composite,object,deep){var objects=[].concat(object);Events.trigger(composite,"beforeRemove",{object:object});for(var i=0;i<objects.length;i++){var obj=objects[i];switch(obj.type){case"body":Composite.removeBody(composite,obj,deep);break;case"constraint":Composite.removeConstraint(composite,obj,deep);break;case"composite":Composite.removeComposite(composite,obj,deep);break;case"mouseConstraint":Composite.removeConstraint(composite,obj.constraint);break}}Events.trigger(composite,"afterRemove",{object:object});return composite};Composite.addComposite=function(compositeA,compositeB){compositeA.composites.push(compositeB);compositeB.parent=compositeA;Composite.setModified(compositeA,true,true,false);return compositeA};Composite.removeComposite=function(compositeA,compositeB,deep){var position=Common.indexOf(compositeA.composites,compositeB);if(position!==-1){Composite.removeCompositeAt(compositeA,position);Composite.setModified(compositeA,true,true,false)}if(deep){for(var i=0;i<compositeA.composites.length;i++){Composite.removeComposite(compositeA.composites[i],compositeB,true)}}return compositeA};Composite.removeCompositeAt=function(composite,position){composite.composites.splice(position,1);Composite.setModified(composite,true,true,false);return composite};Composite.addBody=function(composite,body){composite.bodies.push(body);Composite.setModified(composite,true,true,false);return composite};Composite.removeBody=function(composite,body,deep){var position=Common.indexOf(composite.bodies,body);if(position!==-1){Composite.removeBodyAt(composite,position);Composite.setModified(composite,true,true,false)}if(deep){for(var i=0;i<composite.composites.length;i++){Composite.removeBody(composite.composites[i],body,true)}}return composite};Composite.removeBodyAt=function(composite,position){composite.bodies.splice(position,1);Composite.setModified(composite,true,true,false);return composite};Composite.addConstraint=function(composite,constraint){composite.constraints.push(constraint);Composite.setModified(composite,true,true,false);return composite};Composite.removeConstraint=function(composite,constraint,deep){var position=Common.indexOf(composite.constraints,constraint);if(position!==-1){Composite.removeConstraintAt(composite,position)}if(deep){for(var i=0;i<composite.composites.length;i++){Composite.removeConstraint(composite.composites[i],constraint,true)}}return composite};Composite.removeConstraintAt=function(composite,position){composite.constraints.splice(position,1);Composite.setModified(composite,true,true,false);return composite};Composite.clear=function(composite,keepStatic,deep){if(deep){for(var i=0;i<composite.composites.length;i++){Composite.clear(composite.composites[i],keepStatic,true)}}if(keepStatic){composite.bodies=composite.bodies.filter(function(body){return body.isStatic})}else{composite.bodies.length=0}composite.constraints.length=0;composite.composites.length=0;Composite.setModified(composite,true,true,false);return composite};Composite.allBodies=function(composite){var bodies=[].concat(composite.bodies);for(var i=0;i<composite.composites.length;i++)bodies=bodies.concat(Composite.allBodies(composite.composites[i]));return bodies};Composite.allConstraints=function(composite){var constraints=[].concat(composite.constraints);for(var i=0;i<composite.composites.length;i++)constraints=constraints.concat(Composite.allConstraints(composite.composites[i]));return constraints};Composite.allComposites=function(composite){var composites=[].concat(composite.composites);for(var i=0;i<composite.composites.length;i++)composites=composites.concat(Composite.allComposites(composite.composites[i]));return composites};Composite.get=function(composite,id,type){var objects,object;switch(type){case"body":objects=Composite.allBodies(composite);break;case"constraint":objects=Composite.allConstraints(composite);break;case"composite":objects=Composite.allComposites(composite).concat(composite);break}if(!objects)return null;object=objects.filter(function(object){return object.id.toString()===id.toString()});return object.length===0?null:object[0]};Composite.move=function(compositeA,objects,compositeB){Composite.remove(compositeA,objects);Composite.add(compositeB,objects);return compositeA};Composite.rebase=function(composite){var objects=Composite.allBodies(composite).concat(Composite.allConstraints(composite)).concat(Composite.allComposites(composite));for(var i=0;i<objects.length;i++){objects[i].id=Common.nextId()}Composite.setModified(composite,true,true,false);return composite};Composite.translate=function(composite,translation,recursive){var bodies=recursive?Composite.allBodies(composite):composite.bodies;for(var i=0;i<bodies.length;i++){Body.translate(bodies[i],translation)}Composite.setModified(composite,true,true,false);return composite};Composite.rotate=function(composite,rotation,point,recursive){var cos=Math.cos(rotation),sin=Math.sin(rotation),bodies=recursive?Composite.allBodies(composite):composite.bodies;for(var i=0;i<bodies.length;i++){var body=bodies[i],dx=body.position.x-point.x,dy=body.position.y-point.y;Body.setPosition(body,{x:point.x+(dx*cos-dy*sin),y:point.y+(dx*sin+dy*cos)});Body.rotate(body,rotation)}Composite.setModified(composite,true,true,false);return composite};Composite.scale=function(composite,scaleX,scaleY,point,recursive){var bodies=recursive?Composite.allBodies(composite):composite.bodies;for(var i=0;i<bodies.length;i++){var body=bodies[i],dx=body.position.x-point.x,dy=body.position.y-point.y;Body.setPosition(body,{x:point.x+dx*scaleX,y:point.y+dy*scaleY});Body.scale(body,scaleX,scaleY)}Composite.setModified(composite,true,true,false);return composite}})()},{"../core/Common":14,"../core/Events":16,"./Body":1}],3:[function(_dereq_,module,exports){var World={};module.exports=World;var Composite=_dereq_("./Composite");var Constraint=_dereq_("../constraint/Constraint");var Common=_dereq_("../core/Common");(function(){World.create=function(options){var composite=Composite.create();var defaults={label:"World",gravity:{x:0,y:1,scale:.001},bounds:{min:{x:-Infinity,y:-Infinity},max:{x:Infinity,y:Infinity}}};return Common.extend(composite,defaults,options)}})()},{"../constraint/Constraint":12,"../core/Common":14,"./Composite":2}],4:[function(_dereq_,module,exports){var Contact={};module.exports=Contact;(function(){Contact.create=function(vertex){return{id:Contact.id(vertex),vertex:vertex,normalImpulse:0,tangentImpulse:0}};Contact.id=function(vertex){return vertex.body.id+"_"+vertex.index}})()},{}],5:[function(_dereq_,module,exports){var Detector={};module.exports=Detector;var SAT=_dereq_("./SAT");var Pair=_dereq_("./Pair");var Bounds=_dereq_("../geometry/Bounds");(function(){Detector.collisions=function(broadphasePairs,engine){var collisions=[],pairsTable=engine.pairs.table;for(var i=0;i<broadphasePairs.length;i++){var bodyA=broadphasePairs[i][0],bodyB=broadphasePairs[i][1];if((bodyA.isStatic||bodyA.isSleeping)&&(bodyB.isStatic||bodyB.isSleeping))continue;if(!Detector.canCollide(bodyA.collisionFilter,bodyB.collisionFilter))continue;if(Bounds.overlaps(bodyA.bounds,bodyB.bounds)){for(var j=bodyA.parts.length>1?1:0;j<bodyA.parts.length;j++){var partA=bodyA.parts[j];for(var k=bodyB.parts.length>1?1:0;k<bodyB.parts.length;k++){var partB=bodyB.parts[k];if(partA===bodyA&&partB===bodyB||Bounds.overlaps(partA.bounds,partB.bounds)){var pairId=Pair.id(partA,partB),pair=pairsTable[pairId],previousCollision;if(pair&&pair.isActive){previousCollision=pair.collision}else{previousCollision=null}var collision=SAT.collides(partA,partB,previousCollision);if(collision.collided){collisions.push(collision)}}}}}}return collisions};Detector.canCollide=function(filterA,filterB){if(filterA.group===filterB.group&&filterA.group!==0)return filterA.group>0;return(filterA.mask&filterB.category)!==0&&(filterB.mask&filterA.category)!==0}})()},{"../geometry/Bounds":26,"./Pair":7,"./SAT":11}],6:[function(_dereq_,module,exports){var Grid={};module.exports=Grid;var Pair=_dereq_("./Pair");var Detector=_dereq_("./Detector");var Common=_dereq_("../core/Common");(function(){Grid.create=function(options){var defaults={controller:Grid,detector:Detector.collisions,buckets:{},pairs:{},pairsList:[],bucketWidth:48,bucketHeight:48};return Common.extend(defaults,options)};Grid.update=function(grid,bodies,engine,forceUpdate){var i,col,row,world=engine.world,buckets=grid.buckets,bucket,bucketId,gridChanged=false;for(i=0;i<bodies.length;i++){var body=bodies[i];if(body.isSleeping&&!forceUpdate)continue;if(body.bounds.max.x<world.bounds.min.x||body.bounds.min.x>world.bounds.max.x||body.bounds.max.y<world.bounds.min.y||body.bounds.min.y>world.bounds.max.y)continue;var newRegion=_getRegion(grid,body);if(!body.region||newRegion.id!==body.region.id||forceUpdate){if(!body.region||forceUpdate)body.region=newRegion;var union=_regionUnion(newRegion,body.region);for(col=union.startCol;col<=union.endCol;col++){for(row=union.startRow;row<=union.endRow;row++){bucketId=_getBucketId(col,row);bucket=buckets[bucketId];var isInsideNewRegion=col>=newRegion.startCol&&col<=newRegion.endCol&&row>=newRegion.startRow&&row<=newRegion.endRow;var isInsideOldRegion=col>=body.region.startCol&&col<=body.region.endCol&&row>=body.region.startRow&&row<=body.region.endRow;if(!isInsideNewRegion&&isInsideOldRegion){if(isInsideOldRegion){if(bucket)_bucketRemoveBody(grid,bucket,body)}}if(body.region===newRegion||isInsideNewRegion&&!isInsideOldRegion||forceUpdate){if(!bucket)bucket=_createBucket(buckets,bucketId);_bucketAddBody(grid,bucket,body)}}}body.region=newRegion;gridChanged=true}}if(gridChanged)grid.pairsList=_createActivePairsList(grid)};Grid.clear=function(grid){grid.buckets={};grid.pairs={};grid.pairsList=[]};var _regionUnion=function(regionA,regionB){var startCol=Math.min(regionA.startCol,regionB.startCol),endCol=Math.max(regionA.endCol,regionB.endCol),startRow=Math.min(regionA.startRow,regionB.startRow),endRow=Math.max(regionA.endRow,regionB.endRow);return _createRegion(startCol,endCol,startRow,endRow)};var _getRegion=function(grid,body){var bounds=body.bounds,startCol=Math.floor(bounds.min.x/grid.bucketWidth),endCol=Math.floor(bounds.max.x/grid.bucketWidth),startRow=Math.floor(bounds.min.y/grid.bucketHeight),endRow=Math.floor(bounds.max.y/grid.bucketHeight);return _createRegion(startCol,endCol,startRow,endRow)};var _createRegion=function(startCol,endCol,startRow,endRow){return{id:startCol+","+endCol+","+startRow+","+endRow,startCol:startCol,endCol:endCol,startRow:startRow,endRow:endRow}};var _getBucketId=function(column,row){return"C"+column+"R"+row};var _createBucket=function(buckets,bucketId){var bucket=buckets[bucketId]=[];return bucket};var _bucketAddBody=function(grid,bucket,body){for(var i=0;i<bucket.length;i++){var bodyB=bucket[i];if(body.id===bodyB.id||body.isStatic&&bodyB.isStatic)continue;var pairId=Pair.id(body,bodyB),pair=grid.pairs[pairId];if(pair){pair[2]+=1}else{grid.pairs[pairId]=[body,bodyB,1]}}bucket.push(body)};var _bucketRemoveBody=function(grid,bucket,body){bucket.splice(Common.indexOf(bucket,body),1);for(var i=0;i<bucket.length;i++){var bodyB=bucket[i],pairId=Pair.id(body,bodyB),pair=grid.pairs[pairId];if(pair)pair[2]-=1}};var _createActivePairsList=function(grid){var pairKeys,pair,pairs=[];pairKeys=Common.keys(grid.pairs);for(var k=0;k<pairKeys.length;k++){pair=grid.pairs[pairKeys[k]];if(pair[2]>0){pairs.push(pair)}else{delete grid.pairs[pairKeys[k]]}}return pairs}})()},{"../core/Common":14,"./Detector":5,"./Pair":7}],7:[function(_dereq_,module,exports){var Pair={};module.exports=Pair;var Contact=_dereq_("./Contact");(function(){Pair.create=function(collision,timestamp){var bodyA=collision.bodyA,bodyB=collision.bodyB,parentA=collision.parentA,parentB=collision.parentB;var pair={id:Pair.id(bodyA,bodyB),bodyA:bodyA,bodyB:bodyB,contacts:{},activeContacts:[],separation:0,isActive:true,isSensor:bodyA.isSensor||bodyB.isSensor,timeCreated:timestamp,timeUpdated:timestamp,inverseMass:parentA.inverseMass+parentB.inverseMass,friction:Math.min(parentA.friction,parentB.friction),frictionStatic:Math.max(parentA.frictionStatic,parentB.frictionStatic),restitution:Math.max(parentA.restitution,parentB.restitution),slop:Math.max(parentA.slop,parentB.slop)};Pair.update(pair,collision,timestamp);return pair};Pair.update=function(pair,collision,timestamp){var contacts=pair.contacts,supports=collision.supports,activeContacts=pair.activeContacts,parentA=collision.parentA,parentB=collision.parentB;pair.collision=collision;pair.inverseMass=parentA.inverseMass+parentB.inverseMass;pair.friction=Math.min(parentA.friction,parentB.friction);pair.frictionStatic=Math.max(parentA.frictionStatic,parentB.frictionStatic);pair.restitution=Math.max(parentA.restitution,parentB.restitution);pair.slop=Math.max(parentA.slop,parentB.slop);activeContacts.length=0;if(collision.collided){for(var i=0;i<supports.length;i++){var support=supports[i],contactId=Contact.id(support),contact=contacts[contactId];if(contact){activeContacts.push(contact)}else{activeContacts.push(contacts[contactId]=Contact.create(support))}}pair.separation=collision.depth;Pair.setActive(pair,true,timestamp)}else{if(pair.isActive===true)Pair.setActive(pair,false,timestamp)}};Pair.setActive=function(pair,isActive,timestamp){if(isActive){pair.isActive=true;pair.timeUpdated=timestamp}else{pair.isActive=false;pair.activeContacts.length=0}};Pair.id=function(bodyA,bodyB){if(bodyA.id<bodyB.id){return"A"+bodyA.id+"B"+bodyB.id}else{return"A"+bodyB.id+"B"+bodyA.id}}})()},{"./Contact":4}],8:[function(_dereq_,module,exports){var Pairs={};module.exports=Pairs;var Pair=_dereq_("./Pair");var Common=_dereq_("../core/Common");(function(){var _pairMaxIdleLife=1e3;Pairs.create=function(options){return Common.extend({table:{},list:[],collisionStart:[],collisionActive:[],collisionEnd:[]},options)};Pairs.update=function(pairs,collisions,timestamp){var pairsList=pairs.list,pairsTable=pairs.table,collisionStart=pairs.collisionStart,collisionEnd=pairs.collisionEnd,collisionActive=pairs.collisionActive,activePairIds=[],collision,pairId,pair,i;collisionStart.length=0;collisionEnd.length=0;collisionActive.length=0;for(i=0;i<collisions.length;i++){collision=collisions[i];if(collision.collided){pairId=Pair.id(collision.bodyA,collision.bodyB);activePairIds.push(pairId);pair=pairsTable[pairId];if(pair){if(pair.isActive){collisionActive.push(pair)}else{collisionStart.push(pair)}Pair.update(pair,collision,timestamp)}else{pair=Pair.create(collision,timestamp);pairsTable[pairId]=pair;collisionStart.push(pair);pairsList.push(pair)}}}for(i=0;i<pairsList.length;i++){pair=pairsList[i];if(pair.isActive&&Common.indexOf(activePairIds,pair.id)===-1){Pair.setActive(pair,false,timestamp);collisionEnd.push(pair)}}};Pairs.removeOld=function(pairs,timestamp){var pairsList=pairs.list,pairsTable=pairs.table,indexesToRemove=[],pair,collision,pairIndex,i;for(i=0;i<pairsList.length;i++){pair=pairsList[i];collision=pair.collision;if(collision.bodyA.isSleeping||collision.bodyB.isSleeping){pair.timeUpdated=timestamp;continue}if(timestamp-pair.timeUpdated>_pairMaxIdleLife){indexesToRemove.push(i)}}for(i=0;i<indexesToRemove.length;i++){pairIndex=indexesToRemove[i]-i;pair=pairsList[pairIndex];delete pairsTable[pair.id];pairsList.splice(pairIndex,1)}};Pairs.clear=function(pairs){pairs.table={};pairs.list.length=0;pairs.collisionStart.length=0;pairs.collisionActive.length=0;pairs.collisionEnd.length=0;return pairs}})()},{"../core/Common":14,"./Pair":7}],9:[function(_dereq_,module,exports){var Query={};module.exports=Query;var Vector=_dereq_("../geometry/Vector");var SAT=_dereq_("./SAT");var Bounds=_dereq_("../geometry/Bounds");var Bodies=_dereq_("../factory/Bodies");var Vertices=_dereq_("../geometry/Vertices");(function(){Query.ray=function(bodies,startPoint,endPoint,rayWidth){rayWidth=rayWidth||1e-100;var rayAngle=Vector.angle(startPoint,endPoint),rayLength=Vector.magnitude(Vector.sub(startPoint,endPoint)),rayX=(endPoint.x+startPoint.x)*.5,rayY=(endPoint.y+startPoint.y)*.5,ray=Bodies.rectangle(rayX,rayY,rayLength,rayWidth,{angle:rayAngle}),collisions=[];for(var i=0;i<bodies.length;i++){var bodyA=bodies[i];if(Bounds.overlaps(bodyA.bounds,ray.bounds)){for(var j=bodyA.parts.length===1?0:1;j<bodyA.parts.length;j++){var part=bodyA.parts[j];if(Bounds.overlaps(part.bounds,ray.bounds)){var collision=SAT.collides(part,ray);if(collision.collided){collision.body=collision.bodyA=collision.bodyB=bodyA;collisions.push(collision);break}}}}}return collisions};Query.region=function(bodies,bounds,outside){var result=[];for(var i=0;i<bodies.length;i++){var body=bodies[i],overlaps=Bounds.overlaps(body.bounds,bounds);if(overlaps&&!outside||!overlaps&&outside)result.push(body)}return result};Query.point=function(bodies,point){var result=[];for(var i=0;i<bodies.length;i++){var body=bodies[i];if(Bounds.contains(body.bounds,point)){for(var j=body.parts.length===1?0:1;j<body.parts.length;j++){var part=body.parts[j];if(Bounds.contains(part.bounds,point)&&Vertices.contains(part.vertices,point)){result.push(body);break}}}}return result}})()},{"../factory/Bodies":23,"../geometry/Bounds":26,"../geometry/Vector":28,"../geometry/Vertices":29,"./SAT":11}],10:[function(_dereq_,module,exports){var Resolver={};module.exports=Resolver;var Vertices=_dereq_("../geometry/Vertices");var Vector=_dereq_("../geometry/Vector");var Common=_dereq_("../core/Common");var Bounds=_dereq_("../geometry/Bounds");(function(){Resolver._restingThresh=4;Resolver._restingThreshTangent=6;Resolver._positionDampen=.9;Resolver._positionWarming=.8;Resolver._frictionNormalMultiplier=5;Resolver.preSolvePosition=function(pairs){var i,pair,activeCount;for(i=0;i<pairs.length;i++){pair=pairs[i];if(!pair.isActive)continue;activeCount=pair.activeContacts.length;pair.collision.parentA.totalContacts+=activeCount;pair.collision.parentB.totalContacts+=activeCount}};Resolver.solvePosition=function(pairs,timeScale){var i,pair,collision,bodyA,bodyB,normal,bodyBtoA,contactShare,positionImpulse,contactCount={},tempA=Vector._temp[0],tempB=Vector._temp[1],tempC=Vector._temp[2],tempD=Vector._temp[3];for(i=0;i<pairs.length;i++){pair=pairs[i];if(!pair.isActive||pair.isSensor)continue;collision=pair.collision;bodyA=collision.parentA;bodyB=collision.parentB;normal=collision.normal;bodyBtoA=Vector.sub(Vector.add(bodyB.positionImpulse,bodyB.position,tempA),Vector.add(bodyA.positionImpulse,Vector.sub(bodyB.position,collision.penetration,tempB),tempC),tempD);pair.separation=Vector.dot(normal,bodyBtoA)}for(i=0;i<pairs.length;i++){pair=pairs[i];if(!pair.isActive||pair.isSensor||pair.separation<0)continue;collision=pair.collision;bodyA=collision.parentA;bodyB=collision.parentB;normal=collision.normal;positionImpulse=(pair.separation-pair.slop)*timeScale;if(bodyA.isStatic||bodyB.isStatic)positionImpulse*=2;if(!(bodyA.isStatic||bodyA.isSleeping)){contactShare=Resolver._positionDampen/bodyA.totalContacts;bodyA.positionImpulse.x+=normal.x*positionImpulse*contactShare;bodyA.positionImpulse.y+=normal.y*positionImpulse*contactShare}if(!(bodyB.isStatic||bodyB.isSleeping)){contactShare=Resolver._positionDampen/bodyB.totalContacts;bodyB.positionImpulse.x-=normal.x*positionImpulse*contactShare;bodyB.positionImpulse.y-=normal.y*positionImpulse*contactShare}}};Resolver.postSolvePosition=function(bodies){for(var i=0;i<bodies.length;i++){var body=bodies[i];
body.totalContacts=0;if(body.positionImpulse.x!==0||body.positionImpulse.y!==0){for(var j=0;j<body.parts.length;j++){var part=body.parts[j];Vertices.translate(part.vertices,body.positionImpulse);Bounds.update(part.bounds,part.vertices,body.velocity);part.position.x+=body.positionImpulse.x;part.position.y+=body.positionImpulse.y}body.positionPrev.x+=body.positionImpulse.x;body.positionPrev.y+=body.positionImpulse.y;if(Vector.dot(body.positionImpulse,body.velocity)<0){body.positionImpulse.x=0;body.positionImpulse.y=0}else{body.positionImpulse.x*=Resolver._positionWarming;body.positionImpulse.y*=Resolver._positionWarming}}}};Resolver.preSolveVelocity=function(pairs){var i,j,pair,contacts,collision,bodyA,bodyB,normal,tangent,contact,contactVertex,normalImpulse,tangentImpulse,offset,impulse=Vector._temp[0],tempA=Vector._temp[1];for(i=0;i<pairs.length;i++){pair=pairs[i];if(!pair.isActive||pair.isSensor)continue;contacts=pair.activeContacts;collision=pair.collision;bodyA=collision.parentA;bodyB=collision.parentB;normal=collision.normal;tangent=collision.tangent;for(j=0;j<contacts.length;j++){contact=contacts[j];contactVertex=contact.vertex;normalImpulse=contact.normalImpulse;tangentImpulse=contact.tangentImpulse;if(normalImpulse!==0||tangentImpulse!==0){impulse.x=normal.x*normalImpulse+tangent.x*tangentImpulse;impulse.y=normal.y*normalImpulse+tangent.y*tangentImpulse;if(!(bodyA.isStatic||bodyA.isSleeping)){offset=Vector.sub(contactVertex,bodyA.position,tempA);bodyA.positionPrev.x+=impulse.x*bodyA.inverseMass;bodyA.positionPrev.y+=impulse.y*bodyA.inverseMass;bodyA.anglePrev+=Vector.cross(offset,impulse)*bodyA.inverseInertia}if(!(bodyB.isStatic||bodyB.isSleeping)){offset=Vector.sub(contactVertex,bodyB.position,tempA);bodyB.positionPrev.x-=impulse.x*bodyB.inverseMass;bodyB.positionPrev.y-=impulse.y*bodyB.inverseMass;bodyB.anglePrev-=Vector.cross(offset,impulse)*bodyB.inverseInertia}}}}};Resolver.solveVelocity=function(pairs,timeScale){var timeScaleSquared=timeScale*timeScale,impulse=Vector._temp[0],tempA=Vector._temp[1],tempB=Vector._temp[2],tempC=Vector._temp[3],tempD=Vector._temp[4],tempE=Vector._temp[5];for(var i=0;i<pairs.length;i++){var pair=pairs[i];if(!pair.isActive||pair.isSensor)continue;var collision=pair.collision,bodyA=collision.parentA,bodyB=collision.parentB,normal=collision.normal,tangent=collision.tangent,contacts=pair.activeContacts,contactShare=1/contacts.length;bodyA.velocity.x=bodyA.position.x-bodyA.positionPrev.x;bodyA.velocity.y=bodyA.position.y-bodyA.positionPrev.y;bodyB.velocity.x=bodyB.position.x-bodyB.positionPrev.x;bodyB.velocity.y=bodyB.position.y-bodyB.positionPrev.y;bodyA.angularVelocity=bodyA.angle-bodyA.anglePrev;bodyB.angularVelocity=bodyB.angle-bodyB.anglePrev;for(var j=0;j<contacts.length;j++){var contact=contacts[j],contactVertex=contact.vertex,offsetA=Vector.sub(contactVertex,bodyA.position,tempA),offsetB=Vector.sub(contactVertex,bodyB.position,tempB),velocityPointA=Vector.add(bodyA.velocity,Vector.mult(Vector.perp(offsetA),bodyA.angularVelocity),tempC),velocityPointB=Vector.add(bodyB.velocity,Vector.mult(Vector.perp(offsetB),bodyB.angularVelocity),tempD),relativeVelocity=Vector.sub(velocityPointA,velocityPointB,tempE),normalVelocity=Vector.dot(normal,relativeVelocity);var tangentVelocity=Vector.dot(tangent,relativeVelocity),tangentSpeed=Math.abs(tangentVelocity),tangentVelocityDirection=Common.sign(tangentVelocity);var normalImpulse=(1+pair.restitution)*normalVelocity,normalForce=Common.clamp(pair.separation+normalVelocity,0,1)*Resolver._frictionNormalMultiplier;var tangentImpulse=tangentVelocity,maxFriction=Infinity;if(tangentSpeed>pair.friction*pair.frictionStatic*normalForce*timeScaleSquared){maxFriction=tangentSpeed;tangentImpulse=Common.clamp(pair.friction*tangentVelocityDirection*timeScaleSquared,-maxFriction,maxFriction)}var oAcN=Vector.cross(offsetA,normal),oBcN=Vector.cross(offsetB,normal),share=contactShare/(bodyA.inverseMass+bodyB.inverseMass+bodyA.inverseInertia*oAcN*oAcN+bodyB.inverseInertia*oBcN*oBcN);normalImpulse*=share;tangentImpulse*=share;if(normalVelocity<0&&normalVelocity*normalVelocity>Resolver._restingThresh*timeScaleSquared){contact.normalImpulse=0}else{var contactNormalImpulse=contact.normalImpulse;contact.normalImpulse=Math.min(contact.normalImpulse+normalImpulse,0);normalImpulse=contact.normalImpulse-contactNormalImpulse}if(tangentVelocity*tangentVelocity>Resolver._restingThreshTangent*timeScaleSquared){contact.tangentImpulse=0}else{var contactTangentImpulse=contact.tangentImpulse;contact.tangentImpulse=Common.clamp(contact.tangentImpulse+tangentImpulse,-maxFriction,maxFriction);tangentImpulse=contact.tangentImpulse-contactTangentImpulse}impulse.x=normal.x*normalImpulse+tangent.x*tangentImpulse;impulse.y=normal.y*normalImpulse+tangent.y*tangentImpulse;if(!(bodyA.isStatic||bodyA.isSleeping)){bodyA.positionPrev.x+=impulse.x*bodyA.inverseMass;bodyA.positionPrev.y+=impulse.y*bodyA.inverseMass;bodyA.anglePrev+=Vector.cross(offsetA,impulse)*bodyA.inverseInertia}if(!(bodyB.isStatic||bodyB.isSleeping)){bodyB.positionPrev.x-=impulse.x*bodyB.inverseMass;bodyB.positionPrev.y-=impulse.y*bodyB.inverseMass;bodyB.anglePrev-=Vector.cross(offsetB,impulse)*bodyB.inverseInertia}}}}})()},{"../core/Common":14,"../geometry/Bounds":26,"../geometry/Vector":28,"../geometry/Vertices":29}],11:[function(_dereq_,module,exports){var SAT={};module.exports=SAT;var Vertices=_dereq_("../geometry/Vertices");var Vector=_dereq_("../geometry/Vector");(function(){SAT.collides=function(bodyA,bodyB,previousCollision){var overlapAB,overlapBA,minOverlap,collision,canReusePrevCol=false;if(previousCollision){var parentA=bodyA.parent,parentB=bodyB.parent,motion=parentA.speed*parentA.speed+parentA.angularSpeed*parentA.angularSpeed+parentB.speed*parentB.speed+parentB.angularSpeed*parentB.angularSpeed;canReusePrevCol=previousCollision&&previousCollision.collided&&motion<.2;collision=previousCollision}else{collision={collided:false,bodyA:bodyA,bodyB:bodyB}}if(previousCollision&&canReusePrevCol){var axisBodyA=collision.axisBody,axisBodyB=axisBodyA===bodyA?bodyB:bodyA,axes=[axisBodyA.axes[previousCollision.axisNumber]];minOverlap=_overlapAxes(axisBodyA.vertices,axisBodyB.vertices,axes);collision.reused=true;if(minOverlap.overlap<=0){collision.collided=false;return collision}}else{overlapAB=_overlapAxes(bodyA.vertices,bodyB.vertices,bodyA.axes);if(overlapAB.overlap<=0){collision.collided=false;return collision}overlapBA=_overlapAxes(bodyB.vertices,bodyA.vertices,bodyB.axes);if(overlapBA.overlap<=0){collision.collided=false;return collision}if(overlapAB.overlap<overlapBA.overlap){minOverlap=overlapAB;collision.axisBody=bodyA}else{minOverlap=overlapBA;collision.axisBody=bodyB}collision.axisNumber=minOverlap.axisNumber}collision.bodyA=bodyA.id<bodyB.id?bodyA:bodyB;collision.bodyB=bodyA.id<bodyB.id?bodyB:bodyA;collision.collided=true;collision.depth=minOverlap.overlap;collision.parentA=collision.bodyA.parent;collision.parentB=collision.bodyB.parent;bodyA=collision.bodyA;bodyB=collision.bodyB;if(Vector.dot(minOverlap.axis,Vector.sub(bodyB.position,bodyA.position))<0){collision.normal={x:minOverlap.axis.x,y:minOverlap.axis.y}}else{collision.normal={x:-minOverlap.axis.x,y:-minOverlap.axis.y}}collision.tangent=Vector.perp(collision.normal);collision.penetration=collision.penetration||{};collision.penetration.x=collision.normal.x*collision.depth;collision.penetration.y=collision.normal.y*collision.depth;var verticesB=_findSupports(bodyA,bodyB,collision.normal),supports=[];if(Vertices.contains(bodyA.vertices,verticesB[0]))supports.push(verticesB[0]);if(Vertices.contains(bodyA.vertices,verticesB[1]))supports.push(verticesB[1]);if(supports.length<2){var verticesA=_findSupports(bodyB,bodyA,Vector.neg(collision.normal));if(Vertices.contains(bodyB.vertices,verticesA[0]))supports.push(verticesA[0]);if(supports.length<2&&Vertices.contains(bodyB.vertices,verticesA[1]))supports.push(verticesA[1])}if(supports.length<1)supports=[verticesB[0]];collision.supports=supports;return collision};var _overlapAxes=function(verticesA,verticesB,axes){var projectionA=Vector._temp[0],projectionB=Vector._temp[1],result={overlap:Number.MAX_VALUE},overlap,axis;for(var i=0;i<axes.length;i++){axis=axes[i];_projectToAxis(projectionA,verticesA,axis);_projectToAxis(projectionB,verticesB,axis);overlap=Math.min(projectionA.max-projectionB.min,projectionB.max-projectionA.min);if(overlap<=0){result.overlap=overlap;return result}if(overlap<result.overlap){result.overlap=overlap;result.axis=axis;result.axisNumber=i}}return result};var _projectToAxis=function(projection,vertices,axis){var min=Vector.dot(vertices[0],axis),max=min;for(var i=1;i<vertices.length;i+=1){var dot=Vector.dot(vertices[i],axis);if(dot>max){max=dot}else if(dot<min){min=dot}}projection.min=min;projection.max=max};var _findSupports=function(bodyA,bodyB,normal){var nearestDistance=Number.MAX_VALUE,vertexToBody=Vector._temp[0],vertices=bodyB.vertices,bodyAPosition=bodyA.position,distance,vertex,vertexA,vertexB;for(var i=0;i<vertices.length;i++){vertex=vertices[i];vertexToBody.x=vertex.x-bodyAPosition.x;vertexToBody.y=vertex.y-bodyAPosition.y;distance=-Vector.dot(normal,vertexToBody);if(distance<nearestDistance){nearestDistance=distance;vertexA=vertex}}var prevIndex=vertexA.index-1>=0?vertexA.index-1:vertices.length-1;vertex=vertices[prevIndex];vertexToBody.x=vertex.x-bodyAPosition.x;vertexToBody.y=vertex.y-bodyAPosition.y;nearestDistance=-Vector.dot(normal,vertexToBody);vertexB=vertex;var nextIndex=(vertexA.index+1)%vertices.length;vertex=vertices[nextIndex];vertexToBody.x=vertex.x-bodyAPosition.x;vertexToBody.y=vertex.y-bodyAPosition.y;distance=-Vector.dot(normal,vertexToBody);if(distance<nearestDistance){vertexB=vertex}return[vertexA,vertexB]}})()},{"../geometry/Vector":28,"../geometry/Vertices":29}],12:[function(_dereq_,module,exports){var Constraint={};module.exports=Constraint;var Vertices=_dereq_("../geometry/Vertices");var Vector=_dereq_("../geometry/Vector");var Sleeping=_dereq_("../core/Sleeping");var Bounds=_dereq_("../geometry/Bounds");var Axes=_dereq_("../geometry/Axes");var Common=_dereq_("../core/Common");(function(){var _minLength=1e-6,_minDifference=.001;Constraint.create=function(options){var constraint=options;if(constraint.bodyA&&!constraint.pointA)constraint.pointA={x:0,y:0};if(constraint.bodyB&&!constraint.pointB)constraint.pointB={x:0,y:0};var initialPointA=constraint.bodyA?Vector.add(constraint.bodyA.position,constraint.pointA):constraint.pointA,initialPointB=constraint.bodyB?Vector.add(constraint.bodyB.position,constraint.pointB):constraint.pointB,length=Vector.magnitude(Vector.sub(initialPointA,initialPointB));constraint.length=constraint.length||length||_minLength;var render={visible:true,lineWidth:2,strokeStyle:"#ffffff"};constraint.render=Common.extend(render,constraint.render);constraint.id=constraint.id||Common.nextId();constraint.label=constraint.label||"Constraint";constraint.type="constraint";constraint.stiffness=constraint.stiffness||1;constraint.angularStiffness=constraint.angularStiffness||0;constraint.angleA=constraint.bodyA?constraint.bodyA.angle:constraint.angleA;constraint.angleB=constraint.bodyB?constraint.bodyB.angle:constraint.angleB;constraint.plugin={};return constraint};Constraint.solveAll=function(constraints,timeScale){for(var i=0;i<constraints.length;i++){Constraint.solve(constraints[i],timeScale)}};Constraint.solve=function(constraint,timeScale){var bodyA=constraint.bodyA,bodyB=constraint.bodyB,pointA=constraint.pointA,pointB=constraint.pointB;if(bodyA&&!bodyA.isStatic){constraint.pointA=Vector.rotate(pointA,bodyA.angle-constraint.angleA);constraint.angleA=bodyA.angle}if(bodyB&&!bodyB.isStatic){constraint.pointB=Vector.rotate(pointB,bodyB.angle-constraint.angleB);constraint.angleB=bodyB.angle}var pointAWorld=pointA,pointBWorld=pointB;if(bodyA)pointAWorld=Vector.add(bodyA.position,pointA);if(bodyB)pointBWorld=Vector.add(bodyB.position,pointB);if(!pointAWorld||!pointBWorld)return;var delta=Vector.sub(pointAWorld,pointBWorld),currentLength=Vector.magnitude(delta);if(currentLength===0)currentLength=_minLength;var difference=(currentLength-constraint.length)/currentLength,normal=Vector.div(delta,currentLength),force=Vector.mult(delta,difference*.5*constraint.stiffness*timeScale*timeScale);if(Math.abs(1-currentLength/constraint.length)<_minDifference*timeScale)return;var velocityPointA,velocityPointB,offsetA,offsetB,oAn,oBn,bodyADenom,bodyBDenom;if(bodyA&&!bodyA.isStatic){offsetA={x:pointAWorld.x-bodyA.position.x+force.x,y:pointAWorld.y-bodyA.position.y+force.y};bodyA.velocity.x=bodyA.position.x-bodyA.positionPrev.x;bodyA.velocity.y=bodyA.position.y-bodyA.positionPrev.y;bodyA.angularVelocity=bodyA.angle-bodyA.anglePrev;velocityPointA=Vector.add(bodyA.velocity,Vector.mult(Vector.perp(offsetA),bodyA.angularVelocity));oAn=Vector.dot(offsetA,normal);bodyADenom=bodyA.inverseMass+bodyA.inverseInertia*oAn*oAn}else{velocityPointA={x:0,y:0};bodyADenom=bodyA?bodyA.inverseMass:0}if(bodyB&&!bodyB.isStatic){offsetB={x:pointBWorld.x-bodyB.position.x-force.x,y:pointBWorld.y-bodyB.position.y-force.y};bodyB.velocity.x=bodyB.position.x-bodyB.positionPrev.x;bodyB.velocity.y=bodyB.position.y-bodyB.positionPrev.y;bodyB.angularVelocity=bodyB.angle-bodyB.anglePrev;velocityPointB=Vector.add(bodyB.velocity,Vector.mult(Vector.perp(offsetB),bodyB.angularVelocity));oBn=Vector.dot(offsetB,normal);bodyBDenom=bodyB.inverseMass+bodyB.inverseInertia*oBn*oBn}else{velocityPointB={x:0,y:0};bodyBDenom=bodyB?bodyB.inverseMass:0}var relativeVelocity=Vector.sub(velocityPointB,velocityPointA),normalImpulse=Vector.dot(normal,relativeVelocity)/(bodyADenom+bodyBDenom);if(normalImpulse>0)normalImpulse=0;var normalVelocity={x:normal.x*normalImpulse,y:normal.y*normalImpulse};var torque;if(bodyA&&!bodyA.isStatic){torque=Vector.cross(offsetA,normalVelocity)*bodyA.inverseInertia*(1-constraint.angularStiffness);bodyA.constraintImpulse.x-=force.x;bodyA.constraintImpulse.y-=force.y;bodyA.constraintImpulse.angle+=torque;bodyA.position.x-=force.x;bodyA.position.y-=force.y;bodyA.angle+=torque}if(bodyB&&!bodyB.isStatic){torque=Vector.cross(offsetB,normalVelocity)*bodyB.inverseInertia*(1-constraint.angularStiffness);bodyB.constraintImpulse.x+=force.x;bodyB.constraintImpulse.y+=force.y;bodyB.constraintImpulse.angle-=torque;bodyB.position.x+=force.x;bodyB.position.y+=force.y;bodyB.angle-=torque}};Constraint.postSolveAll=function(bodies){for(var i=0;i<bodies.length;i++){var body=bodies[i],impulse=body.constraintImpulse;if(impulse.x===0&&impulse.y===0&&impulse.angle===0){continue}Sleeping.set(body,false);for(var j=0;j<body.parts.length;j++){var part=body.parts[j];Vertices.translate(part.vertices,impulse);if(j>0){part.position.x+=impulse.x;part.position.y+=impulse.y}if(impulse.angle!==0){Vertices.rotate(part.vertices,impulse.angle,body.position);Axes.rotate(part.axes,impulse.angle);if(j>0){Vector.rotateAbout(part.position,impulse.angle,body.position,part.position)}}Bounds.update(part.bounds,part.vertices,body.velocity)}impulse.angle=0;impulse.x=0;impulse.y=0}}})()},{"../core/Common":14,"../core/Sleeping":22,"../geometry/Axes":25,"../geometry/Bounds":26,"../geometry/Vector":28,"../geometry/Vertices":29}],13:[function(_dereq_,module,exports){var MouseConstraint={};module.exports=MouseConstraint;var Vertices=_dereq_("../geometry/Vertices");var Sleeping=_dereq_("../core/Sleeping");var Mouse=_dereq_("../core/Mouse");var Events=_dereq_("../core/Events");var Detector=_dereq_("../collision/Detector");var Constraint=_dereq_("./Constraint");var Composite=_dereq_("../body/Composite");var Common=_dereq_("../core/Common");var Bounds=_dereq_("../geometry/Bounds");(function(){MouseConstraint.create=function(engine,options){var mouse=(engine?engine.mouse:null)||(options?options.mouse:null);if(!mouse){if(engine&&engine.render&&engine.render.canvas){mouse=Mouse.create(engine.render.canvas)}else if(options&&options.element){mouse=Mouse.create(options.element)}else{mouse=Mouse.create();Common.warn("MouseConstraint.create: options.mouse was undefined, options.element was undefined, may not function as expected")}}var constraint=Constraint.create({label:"Mouse Constraint",pointA:mouse.position,pointB:{x:0,y:0},length:.01,stiffness:.1,angularStiffness:1,render:{strokeStyle:"#90EE90",lineWidth:3}});var defaults={type:"mouseConstraint",mouse:mouse,element:null,body:null,constraint:constraint,collisionFilter:{category:1,mask:4294967295,group:0}};var mouseConstraint=Common.extend(defaults,options);Events.on(engine,"beforeUpdate",function(){var allBodies=Composite.allBodies(engine.world);MouseConstraint.update(mouseConstraint,allBodies);_triggerEvents(mouseConstraint)});return mouseConstraint};MouseConstraint.update=function(mouseConstraint,bodies){var mouse=mouseConstraint.mouse,constraint=mouseConstraint.constraint,body=mouseConstraint.body;if(mouse.button===0){if(!constraint.bodyB){for(var i=0;i<bodies.length;i++){body=bodies[i];if(Bounds.contains(body.bounds,mouse.position)&&Detector.canCollide(body.collisionFilter,mouseConstraint.collisionFilter)){for(var j=body.parts.length>1?1:0;j<body.parts.length;j++){var part=body.parts[j];if(Vertices.contains(part.vertices,mouse.position)){constraint.pointA=mouse.position;constraint.bodyB=mouseConstraint.body=body;constraint.pointB={x:mouse.position.x-body.position.x,y:mouse.position.y-body.position.y};constraint.angleB=body.angle;Sleeping.set(body,false);Events.trigger(mouseConstraint,"startdrag",{mouse:mouse,body:body});break}}}}}else{Sleeping.set(constraint.bodyB,false);constraint.pointA=mouse.position}}else{constraint.bodyB=mouseConstraint.body=null;constraint.pointB=null;if(body)Events.trigger(mouseConstraint,"enddrag",{mouse:mouse,body:body})}};var _triggerEvents=function(mouseConstraint){var mouse=mouseConstraint.mouse,mouseEvents=mouse.sourceEvents;if(mouseEvents.mousemove)Events.trigger(mouseConstraint,"mousemove",{mouse:mouse});if(mouseEvents.mousedown)Events.trigger(mouseConstraint,"mousedown",{mouse:mouse});if(mouseEvents.mouseup)Events.trigger(mouseConstraint,"mouseup",{mouse:mouse});Mouse.clearSourceEvents(mouse)}})()},{"../body/Composite":2,"../collision/Detector":5,"../core/Common":14,"../core/Events":16,"../core/Mouse":19,"../core/Sleeping":22,"../geometry/Bounds":26,"../geometry/Vertices":29,"./Constraint":12}],14:[function(_dereq_,module,exports){var Common={};module.exports=Common;(function(){Common._nextId=0;Common._seed=0;Common.extend=function(obj,deep){var argsStart,args,deepClone;if(typeof deep==="boolean"){argsStart=2;deepClone=deep}else{argsStart=1;deepClone=true}for(var i=argsStart;i<arguments.length;i++){var source=arguments[i];if(source){for(var prop in source){if(deepClone&&source[prop]&&source[prop].constructor===Object){if(!obj[prop]||obj[prop].constructor===Object){obj[prop]=obj[prop]||{};Common.extend(obj[prop],deepClone,source[prop])}else{obj[prop]=source[prop]}}else{obj[prop]=source[prop]}}}}return obj};Common.clone=function(obj,deep){return Common.extend({},deep,obj)};Common.keys=function(obj){if(Object.keys)return Object.keys(obj);var keys=[];for(var key in obj)keys.push(key);return keys};Common.values=function(obj){var values=[];if(Object.keys){var keys=Object.keys(obj);for(var i=0;i<keys.length;i++){values.push(obj[keys[i]])}return values}for(var key in obj)values.push(obj[key]);return values};Common.get=function(obj,path,begin,end){path=path.split(".").slice(begin,end);for(var i=0;i<path.length;i+=1){obj=obj[path[i]]}return obj};Common.set=function(obj,path,val,begin,end){var parts=path.split(".").slice(begin,end);Common.get(obj,path,0,-1)[parts[parts.length-1]]=val;return val};Common.shadeColor=function(color,percent){var colorInteger=parseInt(color.slice(1),16),amount=Math.round(2.55*percent),R=(colorInteger>>16)+amount,B=(colorInteger>>8&255)+amount,G=(colorInteger&255)+amount;return"#"+(16777216+(R<255?R<1?0:R:255)*65536+(B<255?B<1?0:B:255)*256+(G<255?G<1?0:G:255)).toString(16).slice(1)};Common.shuffle=function(array){for(var i=array.length-1;i>0;i--){var j=Math.floor(Common.random()*(i+1));var temp=array[i];array[i]=array[j];array[j]=temp}return array};Common.choose=function(choices){return choices[Math.floor(Common.random()*choices.length)]};Common.isElement=function(obj){try{return obj instanceof HTMLElement}catch(e){return typeof obj==="object"&&obj.nodeType===1&&typeof obj.style==="object"&&typeof obj.ownerDocument==="object"}};Common.isArray=function(obj){return Object.prototype.toString.call(obj)==="[object Array]"};Common.isFunction=function(obj){return typeof obj==="function"};Common.isPlainObject=function(obj){return typeof obj==="object"&&obj.constructor===Object};Common.isString=function(obj){return toString.call(obj)==="[object String]"};Common.clamp=function(value,min,max){if(value<min)return min;if(value>max)return max;return value};Common.sign=function(value){return value<0?-1:1};Common.now=function(){var performance=window.performance||{};performance.now=function(){return performance.now||performance.webkitNow||performance.msNow||performance.oNow||performance.mozNow||function(){return+new Date}}();return performance.now()};Common.random=function(min,max){min=typeof min!=="undefined"?min:0;max=typeof max!=="undefined"?max:1;return min+_seededRandom()*(max-min)};var _seededRandom=function(){Common._seed=(Common._seed*9301+49297)%233280;return Common._seed/233280};Common.colorToNumber=function(colorString){colorString=colorString.replace("#","");if(colorString.length==3){colorString=colorString.charAt(0)+colorString.charAt(0)+colorString.charAt(1)+colorString.charAt(1)+colorString.charAt(2)+colorString.charAt(2)}return parseInt(colorString,16)};Common.logLevel=1;Common.log=function(){if(console&&Common.logLevel>0&&Common.logLevel<=3){console.log.apply(console,["matter-js:"].concat(Array.prototype.slice.call(arguments)))}};Common.info=function(){if(console&&Common.logLevel>0&&Common.logLevel<=2){console.info.apply(console,["matter-js:"].concat(Array.prototype.slice.call(arguments)))}};Common.warn=function(){if(console&&Common.logLevel>0&&Common.logLevel<=3){console.warn.apply(console,["matter-js:"].concat(Array.prototype.slice.call(arguments)))}};Common.nextId=function(){return Common._nextId++};Common.indexOf=function(haystack,needle){if(haystack.indexOf)return haystack.indexOf(needle);for(var i=0;i<haystack.length;i++){if(haystack[i]===needle)return i}return-1};Common.map=function(list,func){if(list.map){return list.map(func)}var mapped=[];for(var i=0;i<list.length;i+=1){mapped.push(func(list[i]))}return mapped};Common.topologicalSort=function(graph){var result=[],visited=[],temp=[];for(var node in graph){if(!visited[node]&&!temp[node]){_topologicalSort(node,visited,temp,graph,result)}}return result};var _topologicalSort=function(node,visited,temp,graph,result){var neighbors=graph[node]||[];temp[node]=true;for(var i=0;i<neighbors.length;i+=1){var neighbor=neighbors[i];if(temp[neighbor]){continue}if(!visited[neighbor]){_topologicalSort(neighbor,visited,temp,graph,result)}}temp[node]=false;visited[node]=true;result.push(node)};Common.chain=function(){var funcs=[];for(var i=0;i<arguments.length;i+=1){var func=arguments[i];if(func._chained){funcs.push.apply(funcs,func._chained)}else{funcs.push(func)}}var chain=function(){var lastResult,args=new Array(arguments.length);for(var i=0,l=arguments.length;i<l;i++){args[i]=arguments[i]}for(i=0;i<funcs.length;i+=1){var result=funcs[i].apply(lastResult,args);if(typeof result!=="undefined"){lastResult=result}}return lastResult};chain._chained=funcs;return chain};Common.chainPathBefore=function(base,path,func){return Common.set(base,path,Common.chain(func,Common.get(base,path)))};Common.chainPathAfter=function(base,path,func){return Common.set(base,path,Common.chain(Common.get(base,path),func))}})()},{}],15:[function(_dereq_,module,exports){var Engine={};module.exports=Engine;var World=_dereq_("../body/World");var Sleeping=_dereq_("./Sleeping");var Resolver=_dereq_("../collision/Resolver");var Render=_dereq_("../render/Render");var Pairs=_dereq_("../collision/Pairs");var Metrics=_dereq_("./Metrics");var Grid=_dereq_("../collision/Grid");var Events=_dereq_("./Events");var Composite=_dereq_("../body/Composite");var Constraint=_dereq_("../constraint/Constraint");var Common=_dereq_("./Common");var Body=_dereq_("../body/Body");(function(){Engine.create=function(element,options){options=Common.isElement(element)?options:element;element=Common.isElement(element)?element:null;options=options||{};if(element||options.render){Common.warn("Engine.create: engine.render is deprecated (see docs)")}var defaults={positionIterations:6,velocityIterations:4,constraintIterations:2,enableSleeping:false,events:[],plugin:{},timing:{timestamp:0,timeScale:1},broadphase:{controller:Grid}};var engine=Common.extend(defaults,options);if(element||engine.render){var renderDefaults={element:element,controller:Render};engine.render=Common.extend(renderDefaults,engine.render)}if(engine.render&&engine.render.controller){engine.render=engine.render.controller.create(engine.render)}if(engine.render){engine.render.engine=engine}engine.world=options.world||World.create(engine.world);engine.pairs=Pairs.create();engine.broadphase=engine.broadphase.controller.create(engine.broadphase);engine.metrics=engine.metrics||{extended:false};return engine};Engine.update=function(engine,delta,correction){delta=delta||1e3/60;correction=correction||1;var world=engine.world,timing=engine.timing,broadphase=engine.broadphase,broadphasePairs=[],i;timing.timestamp+=delta*timing.timeScale;var event={timestamp:timing.timestamp};Events.trigger(engine,"beforeUpdate",event);var allBodies=Composite.allBodies(world),allConstraints=Composite.allConstraints(world);if(engine.enableSleeping)Sleeping.update(allBodies,timing.timeScale);_bodiesApplyGravity(allBodies,world.gravity);_bodiesUpdate(allBodies,delta,timing.timeScale,correction,world.bounds);for(i=0;i<engine.constraintIterations;i++){Constraint.solveAll(allConstraints,timing.timeScale)}Constraint.postSolveAll(allBodies);if(broadphase.controller){if(world.isModified)broadphase.controller.clear(broadphase);broadphase.controller.update(broadphase,allBodies,engine,world.isModified);broadphasePairs=broadphase.pairsList}else{broadphasePairs=allBodies}if(world.isModified){Composite.setModified(world,false,false,true)}var collisions=broadphase.detector(broadphasePairs,engine);var pairs=engine.pairs,timestamp=timing.timestamp;Pairs.update(pairs,collisions,timestamp);Pairs.removeOld(pairs,timestamp);if(engine.enableSleeping)Sleeping.afterCollisions(pairs.list,timing.timeScale);if(pairs.collisionStart.length>0)Events.trigger(engine,"collisionStart",{pairs:pairs.collisionStart});Resolver.preSolvePosition(pairs.list);for(i=0;i<engine.positionIterations;i++){Resolver.solvePosition(pairs.list,timing.timeScale)}Resolver.postSolvePosition(allBodies);Resolver.preSolveVelocity(pairs.list);for(i=0;i<engine.velocityIterations;i++){Resolver.solveVelocity(pairs.list,timing.timeScale)}if(pairs.collisionActive.length>0)Events.trigger(engine,"collisionActive",{pairs:pairs.collisionActive});if(pairs.collisionEnd.length>0)Events.trigger(engine,"collisionEnd",{pairs:pairs.collisionEnd});_bodiesClearForces(allBodies);Events.trigger(engine,"afterUpdate",event);return engine};Engine.merge=function(engineA,engineB){Common.extend(engineA,engineB);if(engineB.world){engineA.world=engineB.world;Engine.clear(engineA);var bodies=Composite.allBodies(engineA.world);for(var i=0;i<bodies.length;i++){var body=bodies[i];Sleeping.set(body,false);body.id=Common.nextId()}}};Engine.clear=function(engine){var world=engine.world;Pairs.clear(engine.pairs);var broadphase=engine.broadphase;if(broadphase.controller){var bodies=Composite.allBodies(world);broadphase.controller.clear(broadphase);broadphase.controller.update(broadphase,bodies,engine,true)}};var _bodiesClearForces=function(bodies){for(var i=0;i<bodies.length;i++){var body=bodies[i];body.force.x=0;body.force.y=0;body.torque=0}};var _bodiesApplyGravity=function(bodies,gravity){var gravityScale=typeof gravity.scale!=="undefined"?gravity.scale:.001;if(gravity.x===0&&gravity.y===0||gravityScale===0){return}for(var i=0;i<bodies.length;i++){var body=bodies[i];if(body.isStatic||body.isSleeping)continue;body.force.y+=body.mass*gravity.y*gravityScale;body.force.x+=body.mass*gravity.x*gravityScale}};var _bodiesUpdate=function(bodies,deltaTime,timeScale,correction,worldBounds){for(var i=0;i<bodies.length;i++){var body=bodies[i];if(body.isStatic||body.isSleeping)continue;Body.update(body,deltaTime,timeScale,correction)}}})()},{"../body/Body":1,"../body/Composite":2,"../body/World":3,"../collision/Grid":6,"../collision/Pairs":8,"../collision/Resolver":10,"../constraint/Constraint":12,"../render/Render":31,"./Common":14,"./Events":16,"./Metrics":18,"./Sleeping":22}],16:[function(_dereq_,module,exports){var Events={};module.exports=Events;var Common=_dereq_("./Common");(function(){Events.on=function(object,eventNames,callback){var names=eventNames.split(" "),name;for(var i=0;i<names.length;i++){name=names[i];object.events=object.events||{};object.events[name]=object.events[name]||[];object.events[name].push(callback)}return callback};Events.off=function(object,eventNames,callback){if(!eventNames){object.events={};return}if(typeof eventNames==="function"){callback=eventNames;eventNames=Common.keys(object.events).join(" ")}var names=eventNames.split(" ");for(var i=0;i<names.length;i++){var callbacks=object.events[names[i]],newCallbacks=[];if(callback&&callbacks){for(var j=0;j<callbacks.length;j++){if(callbacks[j]!==callback)newCallbacks.push(callbacks[j])}}object.events[names[i]]=newCallbacks}};Events.trigger=function(object,eventNames,event){var names,name,callbacks,eventClone;if(object.events){if(!event)event={};names=eventNames.split(" ");for(var i=0;i<names.length;i++){name=names[i];callbacks=object.events[name];if(callbacks){eventClone=Common.clone(event,false);eventClone.name=name;eventClone.source=object;for(var j=0;j<callbacks.length;j++){callbacks[j].apply(object,[eventClone])}}}}}})()},{"./Common":14}],17:[function(_dereq_,module,exports){var Matter={};module.exports=Matter;var Plugin=_dereq_("./Plugin");var Common=_dereq_("./Common");(function(){Matter.name="matter-js";Matter.version="0.12.0";Matter.uses=[];Matter.used=[];Matter.use=function(){Plugin.use(Matter,Array.prototype.slice.call(arguments))};Matter.before=function(path,func){path=path.replace(/^Matter./,"");return Common.chainPathBefore(Matter,path,func)};Matter.after=function(path,func){path=path.replace(/^Matter./,"");return Common.chainPathAfter(Matter,path,func)}})()},{"./Common":14,"./Plugin":20}],18:[function(_dereq_,module,exports){},{"../body/Composite":2,"./Common":14}],19:[function(_dereq_,module,exports){var Mouse={};module.exports=Mouse;var Common=_dereq_("../core/Common");(function(){Mouse.create=function(element){var mouse={};if(!element){Common.log("Mouse.create: element was undefined, defaulting to document.body","warn")}mouse.element=element||document.body;mouse.absolute={x:0,y:0};mouse.position={x:0,y:0};mouse.mousedownPosition={x:0,y:0};mouse.mouseupPosition={x:0,y:0};mouse.offset={x:0,y:0};mouse.scale={x:1,y:1};mouse.wheelDelta=0;mouse.button=-1;mouse.pixelRatio=mouse.element.getAttribute("data-pixel-ratio")||1;mouse.sourceEvents={mousemove:null,mousedown:null,mouseup:null,mousewheel:null};mouse.mousemove=function(event){var position=_getRelativeMousePosition(event,mouse.element,mouse.pixelRatio),touches=event.changedTouches;if(touches){mouse.button=0;event.preventDefault()}mouse.absolute.x=position.x;mouse.absolute.y=position.y;mouse.position.x=mouse.absolute.x*mouse.scale.x+mouse.offset.x;mouse.position.y=mouse.absolute.y*mouse.scale.y+mouse.offset.y;mouse.sourceEvents.mousemove=event};mouse.mousedown=function(event){var position=_getRelativeMousePosition(event,mouse.element,mouse.pixelRatio),touches=event.changedTouches;if(touches){mouse.button=0;event.preventDefault()}else{mouse.button=event.button
}mouse.absolute.x=position.x;mouse.absolute.y=position.y;mouse.position.x=mouse.absolute.x*mouse.scale.x+mouse.offset.x;mouse.position.y=mouse.absolute.y*mouse.scale.y+mouse.offset.y;mouse.mousedownPosition.x=mouse.position.x;mouse.mousedownPosition.y=mouse.position.y;mouse.sourceEvents.mousedown=event};mouse.mouseup=function(event){var position=_getRelativeMousePosition(event,mouse.element,mouse.pixelRatio),touches=event.changedTouches;if(touches){event.preventDefault()}mouse.button=-1;mouse.absolute.x=position.x;mouse.absolute.y=position.y;mouse.position.x=mouse.absolute.x*mouse.scale.x+mouse.offset.x;mouse.position.y=mouse.absolute.y*mouse.scale.y+mouse.offset.y;mouse.mouseupPosition.x=mouse.position.x;mouse.mouseupPosition.y=mouse.position.y;mouse.sourceEvents.mouseup=event};mouse.mousewheel=function(event){mouse.wheelDelta=Math.max(-1,Math.min(1,event.wheelDelta||-event.detail));event.preventDefault()};Mouse.setElement(mouse,mouse.element);return mouse};Mouse.setElement=function(mouse,element){mouse.element=element;element.addEventListener("mousemove",mouse.mousemove);element.addEventListener("mousedown",mouse.mousedown);element.addEventListener("mouseup",mouse.mouseup);element.addEventListener("mousewheel",mouse.mousewheel);element.addEventListener("DOMMouseScroll",mouse.mousewheel);element.addEventListener("touchmove",mouse.mousemove);element.addEventListener("touchstart",mouse.mousedown);element.addEventListener("touchend",mouse.mouseup)};Mouse.clearSourceEvents=function(mouse){mouse.sourceEvents.mousemove=null;mouse.sourceEvents.mousedown=null;mouse.sourceEvents.mouseup=null;mouse.sourceEvents.mousewheel=null;mouse.wheelDelta=0};Mouse.setOffset=function(mouse,offset){mouse.offset.x=offset.x;mouse.offset.y=offset.y;mouse.position.x=mouse.absolute.x*mouse.scale.x+mouse.offset.x;mouse.position.y=mouse.absolute.y*mouse.scale.y+mouse.offset.y};Mouse.setScale=function(mouse,scale){mouse.scale.x=scale.x;mouse.scale.y=scale.y;mouse.position.x=mouse.absolute.x*mouse.scale.x+mouse.offset.x;mouse.position.y=mouse.absolute.y*mouse.scale.y+mouse.offset.y};var _getRelativeMousePosition=function(event,element,pixelRatio){var elementBounds=element.getBoundingClientRect(),rootNode=document.documentElement||document.body.parentNode||document.body,scrollX=window.pageXOffset!==undefined?window.pageXOffset:rootNode.scrollLeft,scrollY=window.pageYOffset!==undefined?window.pageYOffset:rootNode.scrollTop,touches=event.changedTouches,x,y;if(touches){x=touches[0].pageX-elementBounds.left-scrollX;y=touches[0].pageY-elementBounds.top-scrollY}else{x=event.pageX-elementBounds.left-scrollX;y=event.pageY-elementBounds.top-scrollY}return{x:x/(element.clientWidth/(element.width||element.clientWidth)*pixelRatio),y:y/(element.clientHeight/(element.height||element.clientHeight)*pixelRatio)}}})()},{"../core/Common":14}],20:[function(_dereq_,module,exports){var Plugin={};module.exports=Plugin;var Common=_dereq_("./Common");(function(){Plugin._registry={};Plugin.register=function(plugin){if(!Plugin.isPlugin(plugin)){Common.warn("Plugin.register:",Plugin.toString(plugin),"does not implement all required fields.")}if(plugin.name in Plugin._registry){var registered=Plugin._registry[plugin.name],pluginVersion=Plugin.versionParse(plugin.version).number,registeredVersion=Plugin.versionParse(registered.version).number;if(pluginVersion>registeredVersion){Common.warn("Plugin.register:",Plugin.toString(registered),"was upgraded to",Plugin.toString(plugin));Plugin._registry[plugin.name]=plugin}else if(pluginVersion<registeredVersion){Common.warn("Plugin.register:",Plugin.toString(registered),"can not be downgraded to",Plugin.toString(plugin))}else if(plugin!==registered){Common.warn("Plugin.register:",Plugin.toString(plugin),"is already registered to different plugin object")}}else{Plugin._registry[plugin.name]=plugin}return plugin};Plugin.resolve=function(dependency){return Plugin._registry[Plugin.dependencyParse(dependency).name]};Plugin.toString=function(plugin){return typeof plugin==="string"?plugin:(plugin.name||"anonymous")+"@"+(plugin.version||plugin.range||"0.0.0")};Plugin.isPlugin=function(obj){return obj&&obj.name&&obj.version&&obj.install};Plugin.isUsed=function(module,name){return module.used.indexOf(name)>-1};Plugin.isFor=function(plugin,module){var parsed=plugin.for&&Plugin.dependencyParse(plugin.for);return!plugin.for||module.name===parsed.name&&Plugin.versionSatisfies(module.version,parsed.range)};Plugin.use=function(module,plugins){module.uses=(module.uses||[]).concat(plugins||[]);if(module.uses.length===0){Common.warn("Plugin.use:",Plugin.toString(module),"does not specify any dependencies to install.");return}var dependencies=Plugin.dependencies(module),sortedDependencies=Common.topologicalSort(dependencies),status=[];for(var i=0;i<sortedDependencies.length;i+=1){if(sortedDependencies[i]===module.name){continue}var plugin=Plugin.resolve(sortedDependencies[i]);if(!plugin){status.push("❌ "+sortedDependencies[i]);continue}if(Plugin.isUsed(module,plugin.name)){continue}if(!Plugin.isFor(plugin,module)){Common.warn("Plugin.use:",Plugin.toString(plugin),"is for",plugin.for,"but installed on",Plugin.toString(module)+".");plugin._warned=true}if(plugin.install){plugin.install(module)}else{Common.warn("Plugin.use:",Plugin.toString(plugin),"does not specify an install function.");plugin._warned=true}if(plugin._warned){status.push("🔶 "+Plugin.toString(plugin));delete plugin._warned}else{status.push("✅ "+Plugin.toString(plugin))}module.used.push(plugin.name)}if(status.length>0){Common.info(status.join("  "))}};Plugin.dependencies=function(module,tracked){var parsedBase=Plugin.dependencyParse(module),name=parsedBase.name;tracked=tracked||{};if(name in tracked){return}module=Plugin.resolve(module)||module;tracked[name]=Common.map(module.uses||[],function(dependency){if(Plugin.isPlugin(dependency)){Plugin.register(dependency)}var parsed=Plugin.dependencyParse(dependency),resolved=Plugin.resolve(dependency);if(resolved&&!Plugin.versionSatisfies(resolved.version,parsed.range)){Common.warn("Plugin.dependencies:",Plugin.toString(resolved),"does not satisfy",Plugin.toString(parsed),"used by",Plugin.toString(parsedBase)+".");resolved._warned=true;module._warned=true}else if(!resolved){Common.warn("Plugin.dependencies:",Plugin.toString(dependency),"used by",Plugin.toString(parsedBase),"could not be resolved.");module._warned=true}return parsed.name});for(var i=0;i<tracked[name].length;i+=1){Plugin.dependencies(tracked[name][i],tracked)}return tracked};Plugin.dependencyParse=function(dependency){if(Common.isString(dependency)){var pattern=/^[\w-]+(@(\*|[\^~]?\d+\.\d+\.\d+(-[0-9A-Za-z-]+)?))?$/;if(!pattern.test(dependency)){Common.warn("Plugin.dependencyParse:",dependency,"is not a valid dependency string.")}return{name:dependency.split("@")[0],range:dependency.split("@")[1]||"*"}}return{name:dependency.name,range:dependency.range||dependency.version}};Plugin.versionParse=function(range){var pattern=/^\*|[\^~]?\d+\.\d+\.\d+(-[0-9A-Za-z-]+)?$/;if(!pattern.test(range)){Common.warn("Plugin.versionParse:",range,"is not a valid version or range.")}var identifiers=range.split("-");range=identifiers[0];var isRange=isNaN(Number(range[0])),version=isRange?range.substr(1):range,parts=Common.map(version.split("."),function(part){return Number(part)});return{isRange:isRange,version:version,range:range,operator:isRange?range[0]:"",parts:parts,prerelease:identifiers[1],number:parts[0]*1e8+parts[1]*1e4+parts[2]}};Plugin.versionSatisfies=function(version,range){range=range||"*";var rangeParsed=Plugin.versionParse(range),rangeParts=rangeParsed.parts,versionParsed=Plugin.versionParse(version),versionParts=versionParsed.parts;if(rangeParsed.isRange){if(rangeParsed.operator==="*"||version==="*"){return true}if(rangeParsed.operator==="~"){return versionParts[0]===rangeParts[0]&&versionParts[1]===rangeParts[1]&&versionParts[2]>=rangeParts[2]}if(rangeParsed.operator==="^"){if(rangeParts[0]>0){return versionParts[0]===rangeParts[0]&&versionParsed.number>=rangeParsed.number}if(rangeParts[1]>0){return versionParts[1]===rangeParts[1]&&versionParts[2]>=rangeParts[2]}return versionParts[2]===rangeParts[2]}}return version===range||version==="*"}})()},{"./Common":14}],21:[function(_dereq_,module,exports){var Runner={};module.exports=Runner;var Events=_dereq_("./Events");var Engine=_dereq_("./Engine");var Common=_dereq_("./Common");(function(){var _requestAnimationFrame,_cancelAnimationFrame;if(typeof window!=="undefined"){_requestAnimationFrame=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame;_cancelAnimationFrame=window.cancelAnimationFrame||window.mozCancelAnimationFrame||window.webkitCancelAnimationFrame||window.msCancelAnimationFrame}if(!_requestAnimationFrame){var _frameTimeout;_requestAnimationFrame=function(callback){_frameTimeout=setTimeout(function(){callback(Common.now())},1e3/60)};_cancelAnimationFrame=function(){clearTimeout(_frameTimeout)}}Runner.create=function(options){var defaults={fps:60,correction:1,deltaSampleSize:60,counterTimestamp:0,frameCounter:0,deltaHistory:[],timePrev:null,timeScalePrev:1,frameRequestId:null,isFixed:false,enabled:true};var runner=Common.extend(defaults,options);runner.delta=runner.delta||1e3/runner.fps;runner.deltaMin=runner.deltaMin||1e3/runner.fps;runner.deltaMax=runner.deltaMax||1e3/(runner.fps*.5);runner.fps=1e3/runner.delta;return runner};Runner.run=function(runner,engine){if(typeof runner.positionIterations!=="undefined"){engine=runner;runner=Runner.create()}(function render(time){runner.frameRequestId=_requestAnimationFrame(render);if(time&&runner.enabled){Runner.tick(runner,engine,time)}})();return runner};Runner.tick=function(runner,engine,time){var timing=engine.timing,correction=1,delta;var event={timestamp:timing.timestamp};Events.trigger(runner,"beforeTick",event);Events.trigger(engine,"beforeTick",event);if(runner.isFixed){delta=runner.delta}else{delta=time-runner.timePrev||runner.delta;runner.timePrev=time;runner.deltaHistory.push(delta);runner.deltaHistory=runner.deltaHistory.slice(-runner.deltaSampleSize);delta=Math.min.apply(null,runner.deltaHistory);delta=delta<runner.deltaMin?runner.deltaMin:delta;delta=delta>runner.deltaMax?runner.deltaMax:delta;correction=delta/runner.delta;runner.delta=delta}if(runner.timeScalePrev!==0)correction*=timing.timeScale/runner.timeScalePrev;if(timing.timeScale===0)correction=0;runner.timeScalePrev=timing.timeScale;runner.correction=correction;runner.frameCounter+=1;if(time-runner.counterTimestamp>=1e3){runner.fps=runner.frameCounter*((time-runner.counterTimestamp)/1e3);runner.counterTimestamp=time;runner.frameCounter=0}Events.trigger(runner,"tick",event);Events.trigger(engine,"tick",event);if(engine.world.isModified&&engine.render&&engine.render.controller&&engine.render.controller.clear){engine.render.controller.clear(engine.render)}Events.trigger(runner,"beforeUpdate",event);Engine.update(engine,delta,correction);Events.trigger(runner,"afterUpdate",event);if(engine.render&&engine.render.controller){Events.trigger(runner,"beforeRender",event);Events.trigger(engine,"beforeRender",event);engine.render.controller.world(engine.render);Events.trigger(runner,"afterRender",event);Events.trigger(engine,"afterRender",event)}Events.trigger(runner,"afterTick",event);Events.trigger(engine,"afterTick",event)};Runner.stop=function(runner){_cancelAnimationFrame(runner.frameRequestId)};Runner.start=function(runner,engine){Runner.run(runner,engine)}})()},{"./Common":14,"./Engine":15,"./Events":16}],22:[function(_dereq_,module,exports){var Sleeping={};module.exports=Sleeping;var Events=_dereq_("./Events");(function(){Sleeping._motionWakeThreshold=.18;Sleeping._motionSleepThreshold=.08;Sleeping._minBias=.9;Sleeping.update=function(bodies,timeScale){var timeFactor=timeScale*timeScale*timeScale;for(var i=0;i<bodies.length;i++){var body=bodies[i],motion=body.speed*body.speed+body.angularSpeed*body.angularSpeed;if(body.force.x!==0||body.force.y!==0){Sleeping.set(body,false);continue}var minMotion=Math.min(body.motion,motion),maxMotion=Math.max(body.motion,motion);body.motion=Sleeping._minBias*minMotion+(1-Sleeping._minBias)*maxMotion;if(body.sleepThreshold>0&&body.motion<Sleeping._motionSleepThreshold*timeFactor){body.sleepCounter+=1;if(body.sleepCounter>=body.sleepThreshold)Sleeping.set(body,true)}else if(body.sleepCounter>0){body.sleepCounter-=1}}};Sleeping.afterCollisions=function(pairs,timeScale){var timeFactor=timeScale*timeScale*timeScale;for(var i=0;i<pairs.length;i++){var pair=pairs[i];if(!pair.isActive)continue;var collision=pair.collision,bodyA=collision.bodyA.parent,bodyB=collision.bodyB.parent;if(bodyA.isSleeping&&bodyB.isSleeping||bodyA.isStatic||bodyB.isStatic)continue;if(bodyA.isSleeping||bodyB.isSleeping){var sleepingBody=bodyA.isSleeping&&!bodyA.isStatic?bodyA:bodyB,movingBody=sleepingBody===bodyA?bodyB:bodyA;if(!sleepingBody.isStatic&&movingBody.motion>Sleeping._motionWakeThreshold*timeFactor){Sleeping.set(sleepingBody,false)}}}};Sleeping.set=function(body,isSleeping){var wasSleeping=body.isSleeping;if(isSleeping){body.isSleeping=true;body.sleepCounter=body.sleepThreshold;body.positionImpulse.x=0;body.positionImpulse.y=0;body.positionPrev.x=body.position.x;body.positionPrev.y=body.position.y;body.anglePrev=body.angle;body.speed=0;body.angularSpeed=0;body.motion=0;if(!wasSleeping){Events.trigger(body,"sleepStart")}}else{body.isSleeping=false;body.sleepCounter=0;if(wasSleeping){Events.trigger(body,"sleepEnd")}}}})()},{"./Events":16}],23:[function(_dereq_,module,exports){(function(global){var Bodies={};module.exports=Bodies;var Vertices=_dereq_("../geometry/Vertices");var Common=_dereq_("../core/Common");var Body=_dereq_("../body/Body");var Bounds=_dereq_("../geometry/Bounds");var Vector=_dereq_("../geometry/Vector");var decomp=typeof window!=="undefined"?window["decomp"]:typeof global!=="undefined"?global["decomp"]:null;(function(){Bodies.rectangle=function(x,y,width,height,options){options=options||{};var rectangle={label:"Rectangle Body",position:{x:x,y:y},vertices:Vertices.fromPath("L 0 0 L "+width+" 0 L "+width+" "+height+" L 0 "+height)};if(options.chamfer){var chamfer=options.chamfer;rectangle.vertices=Vertices.chamfer(rectangle.vertices,chamfer.radius,chamfer.quality,chamfer.qualityMin,chamfer.qualityMax);delete options.chamfer}return Body.create(Common.extend({},rectangle,options))};Bodies.trapezoid=function(x,y,width,height,slope,options){options=options||{};slope*=.5;var roof=(1-slope*2)*width;var x1=width*slope,x2=x1+roof,x3=x2+x1,verticesPath;if(slope<.5){verticesPath="L 0 0 L "+x1+" "+-height+" L "+x2+" "+-height+" L "+x3+" 0"}else{verticesPath="L 0 0 L "+x2+" "+-height+" L "+x3+" 0"}var trapezoid={label:"Trapezoid Body",position:{x:x,y:y},vertices:Vertices.fromPath(verticesPath)};if(options.chamfer){var chamfer=options.chamfer;trapezoid.vertices=Vertices.chamfer(trapezoid.vertices,chamfer.radius,chamfer.quality,chamfer.qualityMin,chamfer.qualityMax);delete options.chamfer}return Body.create(Common.extend({},trapezoid,options))};Bodies.circle=function(x,y,radius,options,maxSides){options=options||{};var circle={label:"Circle Body",circleRadius:radius};maxSides=maxSides||25;var sides=Math.ceil(Math.max(10,Math.min(maxSides,radius)));if(sides%2===1)sides+=1;return Bodies.polygon(x,y,sides,radius,Common.extend({},circle,options))};Bodies.polygon=function(x,y,sides,radius,options){options=options||{};if(sides<3)return Bodies.circle(x,y,radius,options);var theta=2*Math.PI/sides,path="",offset=theta*.5;for(var i=0;i<sides;i+=1){var angle=offset+i*theta,xx=Math.cos(angle)*radius,yy=Math.sin(angle)*radius;path+="L "+xx.toFixed(3)+" "+yy.toFixed(3)+" "}var polygon={label:"Polygon Body",position:{x:x,y:y},vertices:Vertices.fromPath(path)};if(options.chamfer){var chamfer=options.chamfer;polygon.vertices=Vertices.chamfer(polygon.vertices,chamfer.radius,chamfer.quality,chamfer.qualityMin,chamfer.qualityMax);delete options.chamfer}return Body.create(Common.extend({},polygon,options))};Bodies.fromVertices=function(x,y,vertexSets,options,flagInternal,removeCollinear,minimumArea){var body,parts,isConvex,vertices,i,j,k,v,z;options=options||{};parts=[];flagInternal=typeof flagInternal!=="undefined"?flagInternal:false;removeCollinear=typeof removeCollinear!=="undefined"?removeCollinear:.01;minimumArea=typeof minimumArea!=="undefined"?minimumArea:10;if(!decomp){Common.warn("Bodies.fromVertices: poly-decomp.js required. Could not decompose vertices. Fallback to convex hull.")}if(!Common.isArray(vertexSets[0])){vertexSets=[vertexSets]}for(v=0;v<vertexSets.length;v+=1){vertices=vertexSets[v];isConvex=Vertices.isConvex(vertices);if(isConvex||!decomp){if(isConvex){vertices=Vertices.clockwiseSort(vertices)}else{vertices=Vertices.hull(vertices)}parts.push({position:{x:x,y:y},vertices:vertices})}else{var concave=vertices.map(function(vertex){return[vertex.x,vertex.y]});decomp.makeCCW(concave);if(removeCollinear!==false)decomp.removeCollinearPoints(concave,removeCollinear);var decomposed=decomp.quickDecomp(concave);for(i=0;i<decomposed.length;i++){var chunk=decomposed[i];var chunkVertices=chunk.map(function(vertices){return{x:vertices[0],y:vertices[1]}});if(minimumArea>0&&Vertices.area(chunkVertices)<minimumArea)continue;parts.push({position:Vertices.centre(chunkVertices),vertices:chunkVertices})}}}for(i=0;i<parts.length;i++){parts[i]=Body.create(Common.extend(parts[i],options))}if(flagInternal){var coincident_max_dist=5;for(i=0;i<parts.length;i++){var partA=parts[i];for(j=i+1;j<parts.length;j++){var partB=parts[j];if(Bounds.overlaps(partA.bounds,partB.bounds)){var pav=partA.vertices,pbv=partB.vertices;for(k=0;k<partA.vertices.length;k++){for(z=0;z<partB.vertices.length;z++){var da=Vector.magnitudeSquared(Vector.sub(pav[(k+1)%pav.length],pbv[z])),db=Vector.magnitudeSquared(Vector.sub(pav[k],pbv[(z+1)%pbv.length]));if(da<coincident_max_dist&&db<coincident_max_dist){pav[k].isInternal=true;pbv[z].isInternal=true}}}}}}}if(parts.length>1){body=Body.create(Common.extend({parts:parts.slice(0)},options));Body.setPosition(body,{x:x,y:y});return body}else{return parts[0]}}})()}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"../body/Body":1,"../core/Common":14,"../geometry/Bounds":26,"../geometry/Vector":28,"../geometry/Vertices":29}],24:[function(_dereq_,module,exports){var Composites={};module.exports=Composites;var Composite=_dereq_("../body/Composite");var Constraint=_dereq_("../constraint/Constraint");var Common=_dereq_("../core/Common");var Body=_dereq_("../body/Body");var Bodies=_dereq_("./Bodies");(function(){Composites.stack=function(xx,yy,columns,rows,columnGap,rowGap,callback){var stack=Composite.create({label:"Stack"}),x=xx,y=yy,lastBody,i=0;for(var row=0;row<rows;row++){var maxHeight=0;for(var column=0;column<columns;column++){var body=callback(x,y,column,row,lastBody,i);if(body){var bodyHeight=body.bounds.max.y-body.bounds.min.y,bodyWidth=body.bounds.max.x-body.bounds.min.x;if(bodyHeight>maxHeight)maxHeight=bodyHeight;Body.translate(body,{x:bodyWidth*.5,y:bodyHeight*.5});x=body.bounds.max.x+columnGap;Composite.addBody(stack,body);lastBody=body;i+=1}else{x+=columnGap}}y+=maxHeight+rowGap;x=xx}return stack};Composites.chain=function(composite,xOffsetA,yOffsetA,xOffsetB,yOffsetB,options){var bodies=composite.bodies;for(var i=1;i<bodies.length;i++){var bodyA=bodies[i-1],bodyB=bodies[i],bodyAHeight=bodyA.bounds.max.y-bodyA.bounds.min.y,bodyAWidth=bodyA.bounds.max.x-bodyA.bounds.min.x,bodyBHeight=bodyB.bounds.max.y-bodyB.bounds.min.y,bodyBWidth=bodyB.bounds.max.x-bodyB.bounds.min.x;var defaults={bodyA:bodyA,pointA:{x:bodyAWidth*xOffsetA,y:bodyAHeight*yOffsetA},bodyB:bodyB,pointB:{x:bodyBWidth*xOffsetB,y:bodyBHeight*yOffsetB}};var constraint=Common.extend(defaults,options);Composite.addConstraint(composite,Constraint.create(constraint))}composite.label+=" Chain";return composite};Composites.mesh=function(composite,columns,rows,crossBrace,options){var bodies=composite.bodies,row,col,bodyA,bodyB,bodyC;for(row=0;row<rows;row++){for(col=1;col<columns;col++){bodyA=bodies[col-1+row*columns];bodyB=bodies[col+row*columns];Composite.addConstraint(composite,Constraint.create(Common.extend({bodyA:bodyA,bodyB:bodyB},options)))}if(row>0){for(col=0;col<columns;col++){bodyA=bodies[col+(row-1)*columns];bodyB=bodies[col+row*columns];Composite.addConstraint(composite,Constraint.create(Common.extend({bodyA:bodyA,bodyB:bodyB},options)));if(crossBrace&&col>0){bodyC=bodies[col-1+(row-1)*columns];Composite.addConstraint(composite,Constraint.create(Common.extend({bodyA:bodyC,bodyB:bodyB},options)))}if(crossBrace&&col<columns-1){bodyC=bodies[col+1+(row-1)*columns];Composite.addConstraint(composite,Constraint.create(Common.extend({bodyA:bodyC,bodyB:bodyB},options)))}}}}composite.label+=" Mesh";return composite};Composites.pyramid=function(xx,yy,columns,rows,columnGap,rowGap,callback){return Composites.stack(xx,yy,columns,rows,columnGap,rowGap,function(x,y,column,row,lastBody,i){var actualRows=Math.min(rows,Math.ceil(columns/2)),lastBodyWidth=lastBody?lastBody.bounds.max.x-lastBody.bounds.min.x:0;if(row>actualRows)return;row=actualRows-row;var start=row,end=columns-1-row;if(column<start||column>end)return;if(i===1){Body.translate(lastBody,{x:(column+(columns%2===1?1:-1))*lastBodyWidth,y:0})}var xOffset=lastBody?column*lastBodyWidth:0;return callback(xx+xOffset+column*columnGap,y,column,row,lastBody,i)})};Composites.newtonsCradle=function(xx,yy,number,size,length){var newtonsCradle=Composite.create({label:"Newtons Cradle"});for(var i=0;i<number;i++){var separation=1.9,circle=Bodies.circle(xx+i*(size*separation),yy+length,size,{inertia:Infinity,restitution:1,friction:0,frictionAir:1e-4,slop:1}),constraint=Constraint.create({pointA:{x:xx+i*(size*separation),y:yy},bodyB:circle});Composite.addBody(newtonsCradle,circle);Composite.addConstraint(newtonsCradle,constraint)}return newtonsCradle};Composites.car=function(xx,yy,width,height,wheelSize){var group=Body.nextGroup(true),wheelBase=-20,wheelAOffset=-width*.5+wheelBase,wheelBOffset=width*.5-wheelBase,wheelYOffset=0;var car=Composite.create({label:"Car"}),body=Bodies.trapezoid(xx,yy,width,height,.3,{collisionFilter:{group:group},friction:.01,chamfer:{radius:10}});var wheelA=Bodies.circle(xx+wheelAOffset,yy+wheelYOffset,wheelSize,{collisionFilter:{group:group},friction:.8,density:.01});var wheelB=Bodies.circle(xx+wheelBOffset,yy+wheelYOffset,wheelSize,{collisionFilter:{group:group},friction:.8,density:.01});var axelA=Constraint.create({bodyA:body,pointA:{x:wheelAOffset,y:wheelYOffset},bodyB:wheelA,stiffness:.2,render:{lineWidth:0}});var axelB=Constraint.create({bodyA:body,pointA:{x:wheelBOffset,y:wheelYOffset},bodyB:wheelB,stiffness:.2,render:{lineWidth:0}});Composite.addBody(car,body);Composite.addBody(car,wheelA);Composite.addBody(car,wheelB);Composite.addConstraint(car,axelA);Composite.addConstraint(car,axelB);return car};Composites.softBody=function(xx,yy,columns,rows,columnGap,rowGap,crossBrace,particleRadius,particleOptions,constraintOptions){particleOptions=Common.extend({inertia:Infinity},particleOptions);constraintOptions=Common.extend({stiffness:.4},constraintOptions);var softBody=Composites.stack(xx,yy,columns,rows,columnGap,rowGap,function(x,y){return Bodies.circle(x,y,particleRadius,particleOptions)});Composites.mesh(softBody,columns,rows,crossBrace,constraintOptions);softBody.label="Soft Body";return softBody}})()},{"../body/Body":1,"../body/Composite":2,"../constraint/Constraint":12,"../core/Common":14,"./Bodies":23}],25:[function(_dereq_,module,exports){var Axes={};module.exports=Axes;var Vector=_dereq_("../geometry/Vector");var Common=_dereq_("../core/Common");(function(){Axes.fromVertices=function(vertices){var axes={};for(var i=0;i<vertices.length;i++){var j=(i+1)%vertices.length,normal=Vector.normalise({x:vertices[j].y-vertices[i].y,y:vertices[i].x-vertices[j].x}),gradient=normal.y===0?Infinity:normal.x/normal.y;gradient=gradient.toFixed(3).toString();axes[gradient]=normal}return Common.values(axes)};Axes.rotate=function(axes,angle){if(angle===0)return;var cos=Math.cos(angle),sin=Math.sin(angle);for(var i=0;i<axes.length;i++){var axis=axes[i],xx;xx=axis.x*cos-axis.y*sin;axis.y=axis.x*sin+axis.y*cos;axis.x=xx}}})()},{"../core/Common":14,"../geometry/Vector":28}],26:[function(_dereq_,module,exports){var Bounds={};module.exports=Bounds;(function(){Bounds.create=function(vertices){var bounds={min:{x:0,y:0},max:{x:0,y:0}};if(vertices)Bounds.update(bounds,vertices);return bounds};Bounds.update=function(bounds,vertices,velocity){bounds.min.x=Infinity;bounds.max.x=-Infinity;bounds.min.y=Infinity;bounds.max.y=-Infinity;for(var i=0;i<vertices.length;i++){var vertex=vertices[i];if(vertex.x>bounds.max.x)bounds.max.x=vertex.x;if(vertex.x<bounds.min.x)bounds.min.x=vertex.x;if(vertex.y>bounds.max.y)bounds.max.y=vertex.y;if(vertex.y<bounds.min.y)bounds.min.y=vertex.y}if(velocity){if(velocity.x>0){bounds.max.x+=velocity.x}else{bounds.min.x+=velocity.x}if(velocity.y>0){bounds.max.y+=velocity.y}else{bounds.min.y+=velocity.y}}};Bounds.contains=function(bounds,point){return point.x>=bounds.min.x&&point.x<=bounds.max.x&&point.y>=bounds.min.y&&point.y<=bounds.max.y};Bounds.overlaps=function(boundsA,boundsB){return boundsA.min.x<=boundsB.max.x&&boundsA.max.x>=boundsB.min.x&&boundsA.max.y>=boundsB.min.y&&boundsA.min.y<=boundsB.max.y};Bounds.translate=function(bounds,vector){bounds.min.x+=vector.x;bounds.max.x+=vector.x;bounds.min.y+=vector.y;bounds.max.y+=vector.y};Bounds.shift=function(bounds,position){var deltaX=bounds.max.x-bounds.min.x,deltaY=bounds.max.y-bounds.min.y;bounds.min.x=position.x;bounds.max.x=position.x+deltaX;bounds.min.y=position.y;bounds.max.y=position.y+deltaY}})()},{}],27:[function(_dereq_,module,exports){var Svg={};module.exports=Svg;var Bounds=_dereq_("../geometry/Bounds");(function(){Svg.pathToVertices=function(path,sampleLength){var i,il,total,point,segment,segments,segmentsQueue,lastSegment,lastPoint,segmentIndex,points=[],lx,ly,length=0,x=0,y=0;sampleLength=sampleLength||15;var addPoint=function(px,py,pathSegType){var isRelative=pathSegType%2===1&&pathSegType>1;if(!lastPoint||px!=lastPoint.x||py!=lastPoint.y){if(lastPoint&&isRelative){lx=lastPoint.x;ly=lastPoint.y}else{lx=0;ly=0}var point={x:lx+px,y:ly+py};if(isRelative||!lastPoint){lastPoint=point}points.push(point);x=lx+px;y=ly+py}};var addSegmentPoint=function(segment){var segType=segment.pathSegTypeAsLetter.toUpperCase();if(segType==="Z")return;switch(segType){case"M":case"L":case"T":case"C":case"S":case"Q":x=segment.x;y=segment.y;break;case"H":x=segment.x;break;case"V":y=segment.y;break}addPoint(x,y,segment.pathSegType)};_svgPathToAbsolute(path);total=path.getTotalLength();segments=[];for(i=0;i<path.pathSegList.numberOfItems;i+=1)segments.push(path.pathSegList.getItem(i));segmentsQueue=segments.concat();while(length<total){segmentIndex=path.getPathSegAtLength(length);segment=segments[segmentIndex];if(segment!=lastSegment){while(segmentsQueue.length&&segmentsQueue[0]!=segment)addSegmentPoint(segmentsQueue.shift());lastSegment=segment}switch(segment.pathSegTypeAsLetter.toUpperCase()){case"C":case"T":case"S":case"Q":case"A":point=path.getPointAtLength(length);addPoint(point.x,point.y,0);break}length+=sampleLength}for(i=0,il=segmentsQueue.length;i<il;++i)addSegmentPoint(segmentsQueue[i]);return points};var _svgPathToAbsolute=function(path){var x0,y0,x1,y1,x2,y2,segs=path.pathSegList,x=0,y=0,len=segs.numberOfItems;for(var i=0;i<len;++i){var seg=segs.getItem(i),segType=seg.pathSegTypeAsLetter;if(/[MLHVCSQTA]/.test(segType)){if("x"in seg)x=seg.x;if("y"in seg)y=seg.y}else{if("x1"in seg)x1=x+seg.x1;if("x2"in seg)x2=x+seg.x2;if("y1"in seg)y1=y+seg.y1;if("y2"in seg)y2=y+seg.y2;if("x"in seg)x+=seg.x;if("y"in seg)y+=seg.y;switch(segType){case"m":segs.replaceItem(path.createSVGPathSegMovetoAbs(x,y),i);break;case"l":segs.replaceItem(path.createSVGPathSegLinetoAbs(x,y),i);break;case"h":segs.replaceItem(path.createSVGPathSegLinetoHorizontalAbs(x),i);break;case"v":segs.replaceItem(path.createSVGPathSegLinetoVerticalAbs(y),i);break;case"c":segs.replaceItem(path.createSVGPathSegCurvetoCubicAbs(x,y,x1,y1,x2,y2),i);break;case"s":segs.replaceItem(path.createSVGPathSegCurvetoCubicSmoothAbs(x,y,x2,y2),i);break;case"q":segs.replaceItem(path.createSVGPathSegCurvetoQuadraticAbs(x,y,x1,y1),i);break;case"t":segs.replaceItem(path.createSVGPathSegCurvetoQuadraticSmoothAbs(x,y),i);break;case"a":segs.replaceItem(path.createSVGPathSegArcAbs(x,y,seg.r1,seg.r2,seg.angle,seg.largeArcFlag,seg.sweepFlag),i);break;case"z":case"Z":x=x0;y=y0;break}}if(segType=="M"||segType=="m"){x0=x;y0=y}}}})()},{"../geometry/Bounds":26}],28:[function(_dereq_,module,exports){var Vector={};module.exports=Vector;(function(){Vector.create=function(x,y){return{x:x||0,y:y||0}};Vector.clone=function(vector){return{x:vector.x,y:vector.y}};Vector.magnitude=function(vector){return Math.sqrt(vector.x*vector.x+vector.y*vector.y)};Vector.magnitudeSquared=function(vector){return vector.x*vector.x+vector.y*vector.y};Vector.rotate=function(vector,angle){var cos=Math.cos(angle),sin=Math.sin(angle);return{x:vector.x*cos-vector.y*sin,y:vector.x*sin+vector.y*cos}};Vector.rotateAbout=function(vector,angle,point,output){var cos=Math.cos(angle),sin=Math.sin(angle);if(!output)output={};var x=point.x+((vector.x-point.x)*cos-(vector.y-point.y)*sin);output.y=point.y+((vector.x-point.x)*sin+(vector.y-point.y)*cos);output.x=x;return output};Vector.normalise=function(vector){var magnitude=Vector.magnitude(vector);if(magnitude===0)return{x:0,y:0};return{x:vector.x/magnitude,y:vector.y/magnitude}};Vector.dot=function(vectorA,vectorB){return vectorA.x*vectorB.x+vectorA.y*vectorB.y};Vector.cross=function(vectorA,vectorB){return vectorA.x*vectorB.y-vectorA.y*vectorB.x};Vector.cross3=function(vectorA,vectorB,vectorC){return(vectorB.x-vectorA.x)*(vectorC.y-vectorA.y)-(vectorB.y-vectorA.y)*(vectorC.x-vectorA.x)};Vector.add=function(vectorA,vectorB,output){if(!output)output={};output.x=vectorA.x+vectorB.x;output.y=vectorA.y+vectorB.y;return output};Vector.sub=function(vectorA,vectorB,output){if(!output)output={};output.x=vectorA.x-vectorB.x;output.y=vectorA.y-vectorB.y;return output};Vector.mult=function(vector,scalar){return{x:vector.x*scalar,y:vector.y*scalar}};Vector.div=function(vector,scalar){return{x:vector.x/scalar,y:vector.y/scalar}};Vector.perp=function(vector,negate){negate=negate===true?-1:1;return{x:negate*-vector.y,y:negate*vector.x}};Vector.neg=function(vector){return{x:-vector.x,y:-vector.y}};Vector.angle=function(vectorA,vectorB){return Math.atan2(vectorB.y-vectorA.y,vectorB.x-vectorA.x)};Vector._temp=[Vector.create(),Vector.create(),Vector.create(),Vector.create(),Vector.create(),Vector.create()]})()},{}],29:[function(_dereq_,module,exports){var Vertices={};module.exports=Vertices;var Vector=_dereq_("../geometry/Vector");var Common=_dereq_("../core/Common");(function(){Vertices.create=function(points,body){var vertices=[];for(var i=0;i<points.length;i++){var point=points[i],vertex={x:point.x,y:point.y,index:i,body:body,isInternal:false};vertices.push(vertex)}return vertices};Vertices.fromPath=function(path,body){var pathPattern=/L?\s*([\-\d\.e]+)[\s,]*([\-\d\.e]+)*/gi,points=[];path.replace(pathPattern,function(match,x,y){points.push({x:parseFloat(x),y:parseFloat(y)})});return Vertices.create(points,body)};Vertices.centre=function(vertices){var area=Vertices.area(vertices,true),centre={x:0,y:0},cross,temp,j;for(var i=0;i<vertices.length;i++){j=(i+1)%vertices.length;cross=Vector.cross(vertices[i],vertices[j]);temp=Vector.mult(Vector.add(vertices[i],vertices[j]),cross);centre=Vector.add(centre,temp)}return Vector.div(centre,6*area)};Vertices.mean=function(vertices){var average={x:0,y:0};for(var i=0;i<vertices.length;i++){average.x+=vertices[i].x;average.y+=vertices[i].y}return Vector.div(average,vertices.length)};Vertices.area=function(vertices,signed){var area=0,j=vertices.length-1;
for(var i=0;i<vertices.length;i++){area+=(vertices[j].x-vertices[i].x)*(vertices[j].y+vertices[i].y);j=i}if(signed)return area/2;return Math.abs(area)/2};Vertices.inertia=function(vertices,mass){var numerator=0,denominator=0,v=vertices,cross,j;for(var n=0;n<v.length;n++){j=(n+1)%v.length;cross=Math.abs(Vector.cross(v[j],v[n]));numerator+=cross*(Vector.dot(v[j],v[j])+Vector.dot(v[j],v[n])+Vector.dot(v[n],v[n]));denominator+=cross}return mass/6*(numerator/denominator)};Vertices.translate=function(vertices,vector,scalar){var i;if(scalar){for(i=0;i<vertices.length;i++){vertices[i].x+=vector.x*scalar;vertices[i].y+=vector.y*scalar}}else{for(i=0;i<vertices.length;i++){vertices[i].x+=vector.x;vertices[i].y+=vector.y}}return vertices};Vertices.rotate=function(vertices,angle,point){if(angle===0)return;var cos=Math.cos(angle),sin=Math.sin(angle);for(var i=0;i<vertices.length;i++){var vertice=vertices[i],dx=vertice.x-point.x,dy=vertice.y-point.y;vertice.x=point.x+(dx*cos-dy*sin);vertice.y=point.y+(dx*sin+dy*cos)}return vertices};Vertices.contains=function(vertices,point){for(var i=0;i<vertices.length;i++){var vertice=vertices[i],nextVertice=vertices[(i+1)%vertices.length];if((point.x-vertice.x)*(nextVertice.y-vertice.y)+(point.y-vertice.y)*(vertice.x-nextVertice.x)>0){return false}}return true};Vertices.scale=function(vertices,scaleX,scaleY,point){if(scaleX===1&&scaleY===1)return vertices;point=point||Vertices.centre(vertices);var vertex,delta;for(var i=0;i<vertices.length;i++){vertex=vertices[i];delta=Vector.sub(vertex,point);vertices[i].x=point.x+delta.x*scaleX;vertices[i].y=point.y+delta.y*scaleY}return vertices};Vertices.chamfer=function(vertices,radius,quality,qualityMin,qualityMax){radius=radius||[8];if(!radius.length)radius=[radius];quality=typeof quality!=="undefined"?quality:-1;qualityMin=qualityMin||2;qualityMax=qualityMax||14;var newVertices=[];for(var i=0;i<vertices.length;i++){var prevVertex=vertices[i-1>=0?i-1:vertices.length-1],vertex=vertices[i],nextVertex=vertices[(i+1)%vertices.length],currentRadius=radius[i<radius.length?i:radius.length-1];if(currentRadius===0){newVertices.push(vertex);continue}var prevNormal=Vector.normalise({x:vertex.y-prevVertex.y,y:prevVertex.x-vertex.x});var nextNormal=Vector.normalise({x:nextVertex.y-vertex.y,y:vertex.x-nextVertex.x});var diagonalRadius=Math.sqrt(2*Math.pow(currentRadius,2)),radiusVector=Vector.mult(Common.clone(prevNormal),currentRadius),midNormal=Vector.normalise(Vector.mult(Vector.add(prevNormal,nextNormal),.5)),scaledVertex=Vector.sub(vertex,Vector.mult(midNormal,diagonalRadius));var precision=quality;if(quality===-1){precision=Math.pow(currentRadius,.32)*1.75}precision=Common.clamp(precision,qualityMin,qualityMax);if(precision%2===1)precision+=1;var alpha=Math.acos(Vector.dot(prevNormal,nextNormal)),theta=alpha/precision;for(var j=0;j<precision;j++){newVertices.push(Vector.add(Vector.rotate(radiusVector,theta*j),scaledVertex))}}return newVertices};Vertices.clockwiseSort=function(vertices){var centre=Vertices.mean(vertices);vertices.sort(function(vertexA,vertexB){return Vector.angle(centre,vertexA)-Vector.angle(centre,vertexB)});return vertices};Vertices.isConvex=function(vertices){var flag=0,n=vertices.length,i,j,k,z;if(n<3)return null;for(i=0;i<n;i++){j=(i+1)%n;k=(i+2)%n;z=(vertices[j].x-vertices[i].x)*(vertices[k].y-vertices[j].y);z-=(vertices[j].y-vertices[i].y)*(vertices[k].x-vertices[j].x);if(z<0){flag|=1}else if(z>0){flag|=2}if(flag===3){return false}}if(flag!==0){return true}else{return null}};Vertices.hull=function(vertices){var upper=[],lower=[],vertex,i;vertices=vertices.slice(0);vertices.sort(function(vertexA,vertexB){var dx=vertexA.x-vertexB.x;return dx!==0?dx:vertexA.y-vertexB.y});for(i=0;i<vertices.length;i++){vertex=vertices[i];while(lower.length>=2&&Vector.cross3(lower[lower.length-2],lower[lower.length-1],vertex)<=0){lower.pop()}lower.push(vertex)}for(i=vertices.length-1;i>=0;i--){vertex=vertices[i];while(upper.length>=2&&Vector.cross3(upper[upper.length-2],upper[upper.length-1],vertex)<=0){upper.pop()}upper.push(vertex)}upper.pop();lower.pop();return upper.concat(lower)}})()},{"../core/Common":14,"../geometry/Vector":28}],30:[function(_dereq_,module,exports){var Matter=module.exports=_dereq_("../core/Matter");Matter.Body=_dereq_("../body/Body");Matter.Composite=_dereq_("../body/Composite");Matter.World=_dereq_("../body/World");Matter.Contact=_dereq_("../collision/Contact");Matter.Detector=_dereq_("../collision/Detector");Matter.Grid=_dereq_("../collision/Grid");Matter.Pairs=_dereq_("../collision/Pairs");Matter.Pair=_dereq_("../collision/Pair");Matter.Query=_dereq_("../collision/Query");Matter.Resolver=_dereq_("../collision/Resolver");Matter.SAT=_dereq_("../collision/SAT");Matter.Constraint=_dereq_("../constraint/Constraint");Matter.MouseConstraint=_dereq_("../constraint/MouseConstraint");Matter.Common=_dereq_("../core/Common");Matter.Engine=_dereq_("../core/Engine");Matter.Events=_dereq_("../core/Events");Matter.Mouse=_dereq_("../core/Mouse");Matter.Runner=_dereq_("../core/Runner");Matter.Sleeping=_dereq_("../core/Sleeping");Matter.Plugin=_dereq_("../core/Plugin");Matter.Bodies=_dereq_("../factory/Bodies");Matter.Composites=_dereq_("../factory/Composites");Matter.Axes=_dereq_("../geometry/Axes");Matter.Bounds=_dereq_("../geometry/Bounds");Matter.Svg=_dereq_("../geometry/Svg");Matter.Vector=_dereq_("../geometry/Vector");Matter.Vertices=_dereq_("../geometry/Vertices");Matter.Render=_dereq_("../render/Render");Matter.RenderPixi=_dereq_("../render/RenderPixi");Matter.World.add=Matter.Composite.add;Matter.World.remove=Matter.Composite.remove;Matter.World.addComposite=Matter.Composite.addComposite;Matter.World.addBody=Matter.Composite.addBody;Matter.World.addConstraint=Matter.Composite.addConstraint;Matter.World.clear=Matter.Composite.clear;Matter.Engine.run=Matter.Runner.run},{"../body/Body":1,"../body/Composite":2,"../body/World":3,"../collision/Contact":4,"../collision/Detector":5,"../collision/Grid":6,"../collision/Pair":7,"../collision/Pairs":8,"../collision/Query":9,"../collision/Resolver":10,"../collision/SAT":11,"../constraint/Constraint":12,"../constraint/MouseConstraint":13,"../core/Common":14,"../core/Engine":15,"../core/Events":16,"../core/Matter":17,"../core/Metrics":18,"../core/Mouse":19,"../core/Plugin":20,"../core/Runner":21,"../core/Sleeping":22,"../factory/Bodies":23,"../factory/Composites":24,"../geometry/Axes":25,"../geometry/Bounds":26,"../geometry/Svg":27,"../geometry/Vector":28,"../geometry/Vertices":29,"../render/Render":31,"../render/RenderPixi":32}],31:[function(_dereq_,module,exports){var Render={};module.exports=Render;var Common=_dereq_("../core/Common");var Composite=_dereq_("../body/Composite");var Bounds=_dereq_("../geometry/Bounds");var Events=_dereq_("../core/Events");var Grid=_dereq_("../collision/Grid");var Vector=_dereq_("../geometry/Vector");var Mouse=_dereq_("../core/Mouse");(function(){var _requestAnimationFrame,_cancelAnimationFrame;if(typeof window!=="undefined"){_requestAnimationFrame=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame||function(callback){window.setTimeout(function(){callback(Common.now())},1e3/60)};_cancelAnimationFrame=window.cancelAnimationFrame||window.mozCancelAnimationFrame||window.webkitCancelAnimationFrame||window.msCancelAnimationFrame}Render.create=function(options){var defaults={controller:Render,engine:null,element:null,canvas:null,mouse:null,frameRequestId:null,options:{width:800,height:600,pixelRatio:1,background:"#18181d",wireframeBackground:"#0f0f13",hasBounds:!!options.bounds,enabled:true,wireframes:true,showSleeping:true,showDebug:false,showBroadphase:false,showBounds:false,showVelocity:false,showCollisions:false,showSeparations:false,showAxes:false,showPositions:false,showAngleIndicator:false,showIds:false,showShadows:false,showVertexNumbers:false,showConvexHulls:false,showInternalEdges:false,showMousePosition:false}};var render=Common.extend(defaults,options);if(render.canvas){render.canvas.width=render.options.width||render.canvas.width;render.canvas.height=render.options.height||render.canvas.height}render.mouse=options.mouse;render.engine=options.engine;render.canvas=render.canvas||_createCanvas(render.options.width,render.options.height);render.context=render.canvas.getContext("2d");render.textures={};render.bounds=render.bounds||{min:{x:0,y:0},max:{x:render.canvas.width,y:render.canvas.height}};if(render.options.pixelRatio!==1){Render.setPixelRatio(render,render.options.pixelRatio)}if(Common.isElement(render.element)){render.element.appendChild(render.canvas)}else{Common.log("Render.create: options.element was undefined, render.canvas was created but not appended","warn")}return render};Render.run=function(render){(function loop(time){render.frameRequestId=_requestAnimationFrame(loop);Render.world(render)})()};Render.stop=function(render){_cancelAnimationFrame(render.frameRequestId)};Render.setPixelRatio=function(render,pixelRatio){var options=render.options,canvas=render.canvas;if(pixelRatio==="auto"){pixelRatio=_getPixelRatio(canvas)}options.pixelRatio=pixelRatio;canvas.setAttribute("data-pixel-ratio",pixelRatio);canvas.width=options.width*pixelRatio;canvas.height=options.height*pixelRatio;canvas.style.width=options.width+"px";canvas.style.height=options.height+"px";render.context.scale(pixelRatio,pixelRatio)};Render.lookAt=function(render,objects,padding,center){center=typeof center!=="undefined"?center:true;objects=Common.isArray(objects)?objects:[objects];padding=padding||{x:0,y:0};var bounds={min:{x:Infinity,y:Infinity},max:{x:-Infinity,y:-Infinity}};for(var i=0;i<objects.length;i+=1){var object=objects[i],min=object.bounds?object.bounds.min:object.min||object.position||object,max=object.bounds?object.bounds.max:object.max||object.position||object;if(min&&max){if(min.x<bounds.min.x)bounds.min.x=min.x;if(max.x>bounds.max.x)bounds.max.x=max.x;if(min.y<bounds.min.y)bounds.min.y=min.y;if(max.y>bounds.max.y)bounds.max.y=max.y}}var width=bounds.max.x-bounds.min.x+2*padding.x,height=bounds.max.y-bounds.min.y+2*padding.y,viewHeight=render.canvas.height,viewWidth=render.canvas.width,outerRatio=viewWidth/viewHeight,innerRatio=width/height,scaleX=1,scaleY=1;if(innerRatio>outerRatio){scaleY=innerRatio/outerRatio}else{scaleX=outerRatio/innerRatio}render.options.hasBounds=true;render.bounds.min.x=bounds.min.x;render.bounds.max.x=bounds.min.x+width*scaleX;render.bounds.min.y=bounds.min.y;render.bounds.max.y=bounds.min.y+height*scaleY;if(center){render.bounds.min.x+=width*.5-width*scaleX*.5;render.bounds.max.x+=width*.5-width*scaleX*.5;render.bounds.min.y+=height*.5-height*scaleY*.5;render.bounds.max.y+=height*.5-height*scaleY*.5}render.bounds.min.x-=padding.x;render.bounds.max.x-=padding.x;render.bounds.min.y-=padding.y;render.bounds.max.y-=padding.y;if(render.mouse){Mouse.setScale(render.mouse,{x:(render.bounds.max.x-render.bounds.min.x)/render.canvas.width,y:(render.bounds.max.y-render.bounds.min.y)/render.canvas.height});Mouse.setOffset(render.mouse,render.bounds.min)}};Render.startViewTransform=function(render){var boundsWidth=render.bounds.max.x-render.bounds.min.x,boundsHeight=render.bounds.max.y-render.bounds.min.y,boundsScaleX=boundsWidth/render.options.width,boundsScaleY=boundsHeight/render.options.height;render.context.scale(1/boundsScaleX,1/boundsScaleY);render.context.translate(-render.bounds.min.x,-render.bounds.min.y)};Render.endViewTransform=function(render){render.context.setTransform(render.options.pixelRatio,0,0,render.options.pixelRatio,0,0)};Render.world=function(render){var engine=render.engine,world=engine.world,canvas=render.canvas,context=render.context,options=render.options,allBodies=Composite.allBodies(world),allConstraints=Composite.allConstraints(world),background=options.wireframes?options.wireframeBackground:options.background,bodies=[],constraints=[],i;var event={timestamp:engine.timing.timestamp};Events.trigger(render,"beforeRender",event);if(render.currentBackground!==background)_applyBackground(render,background);context.globalCompositeOperation="source-in";context.fillStyle="transparent";context.fillRect(0,0,canvas.width,canvas.height);context.globalCompositeOperation="source-over";if(options.hasBounds){for(i=0;i<allBodies.length;i++){var body=allBodies[i];if(Bounds.overlaps(body.bounds,render.bounds))bodies.push(body)}for(i=0;i<allConstraints.length;i++){var constraint=allConstraints[i],bodyA=constraint.bodyA,bodyB=constraint.bodyB,pointAWorld=constraint.pointA,pointBWorld=constraint.pointB;if(bodyA)pointAWorld=Vector.add(bodyA.position,constraint.pointA);if(bodyB)pointBWorld=Vector.add(bodyB.position,constraint.pointB);if(!pointAWorld||!pointBWorld)continue;if(Bounds.contains(render.bounds,pointAWorld)||Bounds.contains(render.bounds,pointBWorld))constraints.push(constraint)}Render.startViewTransform(render);if(render.mouse){Mouse.setScale(render.mouse,{x:(render.bounds.max.x-render.bounds.min.x)/render.canvas.width,y:(render.bounds.max.y-render.bounds.min.y)/render.canvas.height});Mouse.setOffset(render.mouse,render.bounds.min)}}else{constraints=allConstraints;bodies=allBodies}if(!options.wireframes||engine.enableSleeping&&options.showSleeping){Render.bodies(render,bodies,context)}else{if(options.showConvexHulls)Render.bodyConvexHulls(render,bodies,context);Render.bodyWireframes(render,bodies,context)}if(options.showBounds)Render.bodyBounds(render,bodies,context);if(options.showAxes||options.showAngleIndicator)Render.bodyAxes(render,bodies,context);if(options.showPositions)Render.bodyPositions(render,bodies,context);if(options.showVelocity)Render.bodyVelocity(render,bodies,context);if(options.showIds)Render.bodyIds(render,bodies,context);if(options.showSeparations)Render.separations(render,engine.pairs.list,context);if(options.showCollisions)Render.collisions(render,engine.pairs.list,context);if(options.showVertexNumbers)Render.vertexNumbers(render,bodies,context);if(options.showMousePosition)Render.mousePosition(render,render.mouse,context);Render.constraints(constraints,context);if(options.showBroadphase&&engine.broadphase.controller===Grid)Render.grid(render,engine.broadphase,context);if(options.showDebug)Render.debug(render,context);if(options.hasBounds){Render.endViewTransform(render)}Events.trigger(render,"afterRender",event)};Render.debug=function(render,context){var c=context,engine=render.engine,world=engine.world,metrics=engine.metrics,options=render.options,bodies=Composite.allBodies(world),space="    ";if(engine.timing.timestamp-(render.debugTimestamp||0)>=500){var text="";if(metrics.timing){text+="fps: "+Math.round(metrics.timing.fps)+space}render.debugString=text;render.debugTimestamp=engine.timing.timestamp}if(render.debugString){c.font="12px Arial";if(options.wireframes){c.fillStyle="rgba(255,255,255,0.5)"}else{c.fillStyle="rgba(0,0,0,0.5)"}var split=render.debugString.split("\n");for(var i=0;i<split.length;i++){c.fillText(split[i],50,50+i*18)}}};Render.constraints=function(constraints,context){var c=context;for(var i=0;i<constraints.length;i++){var constraint=constraints[i];if(!constraint.render.visible||!constraint.pointA||!constraint.pointB)continue;var bodyA=constraint.bodyA,bodyB=constraint.bodyB;if(bodyA){c.beginPath();c.moveTo(bodyA.position.x+constraint.pointA.x,bodyA.position.y+constraint.pointA.y)}else{c.beginPath();c.moveTo(constraint.pointA.x,constraint.pointA.y)}if(bodyB){c.lineTo(bodyB.position.x+constraint.pointB.x,bodyB.position.y+constraint.pointB.y)}else{c.lineTo(constraint.pointB.x,constraint.pointB.y)}if(constraint.render.lineWidth){c.lineWidth=constraint.render.lineWidth;c.strokeStyle=constraint.render.strokeStyle;c.stroke()}}};Render.bodyShadows=function(render,bodies,context){var c=context,engine=render.engine;for(var i=0;i<bodies.length;i++){var body=bodies[i];if(!body.render.visible)continue;if(body.circleRadius){c.beginPath();c.arc(body.position.x,body.position.y,body.circleRadius,0,2*Math.PI);c.closePath()}else{c.beginPath();c.moveTo(body.vertices[0].x,body.vertices[0].y);for(var j=1;j<body.vertices.length;j++){c.lineTo(body.vertices[j].x,body.vertices[j].y)}c.closePath()}var distanceX=body.position.x-render.options.width*.5,distanceY=body.position.y-render.options.height*.2,distance=Math.abs(distanceX)+Math.abs(distanceY);c.shadowColor="rgba(0,0,0,0.15)";c.shadowOffsetX=.05*distanceX;c.shadowOffsetY=.05*distanceY;c.shadowBlur=1+12*Math.min(1,distance/1e3);c.fill();c.shadowColor=null;c.shadowOffsetX=null;c.shadowOffsetY=null;c.shadowBlur=null}};Render.bodies=function(render,bodies,context){var c=context,engine=render.engine,options=render.options,showInternalEdges=options.showInternalEdges||!options.wireframes,body,part,i,k;for(i=0;i<bodies.length;i++){body=bodies[i];if(!body.render.visible)continue;for(k=body.parts.length>1?1:0;k<body.parts.length;k++){part=body.parts[k];if(!part.render.visible)continue;if(options.showSleeping&&body.isSleeping){c.globalAlpha=.5*part.render.opacity}else if(part.render.opacity!==1){c.globalAlpha=part.render.opacity}if(part.render.sprite&&part.render.sprite.texture&&!options.wireframes){var sprite=part.render.sprite,texture=_getTexture(render,sprite.texture);c.translate(part.position.x,part.position.y);c.rotate(part.angle);c.drawImage(texture,texture.width*-sprite.xOffset*sprite.xScale,texture.height*-sprite.yOffset*sprite.yScale,texture.width*sprite.xScale,texture.height*sprite.yScale);c.rotate(-part.angle);c.translate(-part.position.x,-part.position.y)}else{if(part.circleRadius){c.beginPath();c.arc(part.position.x,part.position.y,part.circleRadius,0,2*Math.PI)}else{c.beginPath();c.moveTo(part.vertices[0].x,part.vertices[0].y);for(var j=1;j<part.vertices.length;j++){if(!part.vertices[j-1].isInternal||showInternalEdges){c.lineTo(part.vertices[j].x,part.vertices[j].y)}else{c.moveTo(part.vertices[j].x,part.vertices[j].y)}if(part.vertices[j].isInternal&&!showInternalEdges){c.moveTo(part.vertices[(j+1)%part.vertices.length].x,part.vertices[(j+1)%part.vertices.length].y)}}c.lineTo(part.vertices[0].x,part.vertices[0].y);c.closePath()}if(!options.wireframes){c.fillStyle=part.render.fillStyle;if(part.render.lineWidth){c.lineWidth=part.render.lineWidth;c.strokeStyle=part.render.strokeStyle;c.stroke()}c.fill()}else{c.lineWidth=1;c.strokeStyle="#bbb";c.stroke()}}c.globalAlpha=1}}};Render.bodyWireframes=function(render,bodies,context){var c=context,showInternalEdges=render.options.showInternalEdges,body,part,i,j,k;c.beginPath();for(i=0;i<bodies.length;i++){body=bodies[i];if(!body.render.visible)continue;for(k=body.parts.length>1?1:0;k<body.parts.length;k++){part=body.parts[k];c.moveTo(part.vertices[0].x,part.vertices[0].y);for(j=1;j<part.vertices.length;j++){if(!part.vertices[j-1].isInternal||showInternalEdges){c.lineTo(part.vertices[j].x,part.vertices[j].y)}else{c.moveTo(part.vertices[j].x,part.vertices[j].y)}if(part.vertices[j].isInternal&&!showInternalEdges){c.moveTo(part.vertices[(j+1)%part.vertices.length].x,part.vertices[(j+1)%part.vertices.length].y)}}c.lineTo(part.vertices[0].x,part.vertices[0].y)}}c.lineWidth=1;c.strokeStyle="#bbb";c.stroke()};Render.bodyConvexHulls=function(render,bodies,context){var c=context,body,part,i,j,k;c.beginPath();for(i=0;i<bodies.length;i++){body=bodies[i];if(!body.render.visible||body.parts.length===1)continue;c.moveTo(body.vertices[0].x,body.vertices[0].y);for(j=1;j<body.vertices.length;j++){c.lineTo(body.vertices[j].x,body.vertices[j].y)}c.lineTo(body.vertices[0].x,body.vertices[0].y)}c.lineWidth=1;c.strokeStyle="rgba(255,255,255,0.2)";c.stroke()};Render.vertexNumbers=function(render,bodies,context){var c=context,i,j,k;for(i=0;i<bodies.length;i++){var parts=bodies[i].parts;for(k=parts.length>1?1:0;k<parts.length;k++){var part=parts[k];for(j=0;j<part.vertices.length;j++){c.fillStyle="rgba(255,255,255,0.2)";c.fillText(i+"_"+j,part.position.x+(part.vertices[j].x-part.position.x)*.8,part.position.y+(part.vertices[j].y-part.position.y)*.8)}}}};Render.mousePosition=function(render,mouse,context){var c=context;c.fillStyle="rgba(255,255,255,0.8)";c.fillText(mouse.position.x+"  "+mouse.position.y,mouse.position.x+5,mouse.position.y-5)};Render.bodyBounds=function(render,bodies,context){var c=context,engine=render.engine,options=render.options;c.beginPath();for(var i=0;i<bodies.length;i++){var body=bodies[i];if(body.render.visible){var parts=bodies[i].parts;for(var j=parts.length>1?1:0;j<parts.length;j++){var part=parts[j];c.rect(part.bounds.min.x,part.bounds.min.y,part.bounds.max.x-part.bounds.min.x,part.bounds.max.y-part.bounds.min.y)}}}if(options.wireframes){c.strokeStyle="rgba(255,255,255,0.08)"}else{c.strokeStyle="rgba(0,0,0,0.1)"}c.lineWidth=1;c.stroke()};Render.bodyAxes=function(render,bodies,context){var c=context,engine=render.engine,options=render.options,part,i,j,k;c.beginPath();for(i=0;i<bodies.length;i++){var body=bodies[i],parts=body.parts;if(!body.render.visible)continue;if(options.showAxes){for(j=parts.length>1?1:0;j<parts.length;j++){part=parts[j];for(k=0;k<part.axes.length;k++){var axis=part.axes[k];c.moveTo(part.position.x,part.position.y);c.lineTo(part.position.x+axis.x*20,part.position.y+axis.y*20)}}}else{for(j=parts.length>1?1:0;j<parts.length;j++){part=parts[j];for(k=0;k<part.axes.length;k++){c.moveTo(part.position.x,part.position.y);c.lineTo((part.vertices[0].x+part.vertices[part.vertices.length-1].x)/2,(part.vertices[0].y+part.vertices[part.vertices.length-1].y)/2)}}}}if(options.wireframes){c.strokeStyle="indianred";c.lineWidth=1}else{c.strokeStyle="rgba(255, 255, 255, 0.4)";c.globalCompositeOperation="overlay";c.lineWidth=2}c.stroke();c.globalCompositeOperation="source-over"};Render.bodyPositions=function(render,bodies,context){var c=context,engine=render.engine,options=render.options,body,part,i,k;c.beginPath();for(i=0;i<bodies.length;i++){body=bodies[i];if(!body.render.visible)continue;for(k=0;k<body.parts.length;k++){part=body.parts[k];c.arc(part.position.x,part.position.y,3,0,2*Math.PI,false);c.closePath()}}if(options.wireframes){c.fillStyle="indianred"}else{c.fillStyle="rgba(0,0,0,0.5)"}c.fill();c.beginPath();for(i=0;i<bodies.length;i++){body=bodies[i];if(body.render.visible){c.arc(body.positionPrev.x,body.positionPrev.y,2,0,2*Math.PI,false);c.closePath()}}c.fillStyle="rgba(255,165,0,0.8)";c.fill()};Render.bodyVelocity=function(render,bodies,context){var c=context;c.beginPath();for(var i=0;i<bodies.length;i++){var body=bodies[i];if(!body.render.visible)continue;c.moveTo(body.position.x,body.position.y);c.lineTo(body.position.x+(body.position.x-body.positionPrev.x)*2,body.position.y+(body.position.y-body.positionPrev.y)*2)}c.lineWidth=3;c.strokeStyle="cornflowerblue";c.stroke()};Render.bodyIds=function(render,bodies,context){var c=context,i,j;for(i=0;i<bodies.length;i++){if(!bodies[i].render.visible)continue;var parts=bodies[i].parts;for(j=parts.length>1?1:0;j<parts.length;j++){var part=parts[j];c.font="12px Arial";c.fillStyle="rgba(255,255,255,0.5)";c.fillText(part.id,part.position.x+10,part.position.y-10)}}};Render.collisions=function(render,pairs,context){var c=context,options=render.options,pair,collision,corrected,bodyA,bodyB,i,j;c.beginPath();for(i=0;i<pairs.length;i++){pair=pairs[i];if(!pair.isActive)continue;collision=pair.collision;for(j=0;j<pair.activeContacts.length;j++){var contact=pair.activeContacts[j],vertex=contact.vertex;c.rect(vertex.x-1.5,vertex.y-1.5,3.5,3.5)}}if(options.wireframes){c.fillStyle="rgba(255,255,255,0.7)"}else{c.fillStyle="orange"}c.fill();c.beginPath();for(i=0;i<pairs.length;i++){pair=pairs[i];if(!pair.isActive)continue;collision=pair.collision;if(pair.activeContacts.length>0){var normalPosX=pair.activeContacts[0].vertex.x,normalPosY=pair.activeContacts[0].vertex.y;if(pair.activeContacts.length===2){normalPosX=(pair.activeContacts[0].vertex.x+pair.activeContacts[1].vertex.x)/2;normalPosY=(pair.activeContacts[0].vertex.y+pair.activeContacts[1].vertex.y)/2}if(collision.bodyB===collision.supports[0].body||collision.bodyA.isStatic===true){c.moveTo(normalPosX-collision.normal.x*8,normalPosY-collision.normal.y*8)}else{c.moveTo(normalPosX+collision.normal.x*8,normalPosY+collision.normal.y*8)}c.lineTo(normalPosX,normalPosY)}}if(options.wireframes){c.strokeStyle="rgba(255,165,0,0.7)"}else{c.strokeStyle="orange"}c.lineWidth=1;c.stroke()};Render.separations=function(render,pairs,context){var c=context,options=render.options,pair,collision,corrected,bodyA,bodyB,i,j;c.beginPath();for(i=0;i<pairs.length;i++){pair=pairs[i];if(!pair.isActive)continue;collision=pair.collision;bodyA=collision.bodyA;bodyB=collision.bodyB;var k=1;if(!bodyB.isStatic&&!bodyA.isStatic)k=.5;if(bodyB.isStatic)k=0;c.moveTo(bodyB.position.x,bodyB.position.y);c.lineTo(bodyB.position.x-collision.penetration.x*k,bodyB.position.y-collision.penetration.y*k);k=1;if(!bodyB.isStatic&&!bodyA.isStatic)k=.5;if(bodyA.isStatic)k=0;c.moveTo(bodyA.position.x,bodyA.position.y);c.lineTo(bodyA.position.x+collision.penetration.x*k,bodyA.position.y+collision.penetration.y*k)}if(options.wireframes){c.strokeStyle="rgba(255,165,0,0.5)"}else{c.strokeStyle="orange"}c.stroke()};Render.grid=function(render,grid,context){var c=context,options=render.options;if(options.wireframes){c.strokeStyle="rgba(255,180,0,0.1)"}else{c.strokeStyle="rgba(255,180,0,0.5)"}c.beginPath();var bucketKeys=Common.keys(grid.buckets);for(var i=0;i<bucketKeys.length;i++){var bucketId=bucketKeys[i];if(grid.buckets[bucketId].length<2)continue;var region=bucketId.split(/C|R/);c.rect(.5+parseInt(region[1],10)*grid.bucketWidth,.5+parseInt(region[2],10)*grid.bucketHeight,grid.bucketWidth,grid.bucketHeight)}c.lineWidth=1;c.stroke()};Render.inspector=function(inspector,context){var engine=inspector.engine,selected=inspector.selected,render=inspector.render,options=render.options,bounds;if(options.hasBounds){var boundsWidth=render.bounds.max.x-render.bounds.min.x,boundsHeight=render.bounds.max.y-render.bounds.min.y,boundsScaleX=boundsWidth/render.options.width,boundsScaleY=boundsHeight/render.options.height;context.scale(1/boundsScaleX,1/boundsScaleY);context.translate(-render.bounds.min.x,-render.bounds.min.y)}for(var i=0;i<selected.length;i++){var item=selected[i].data;context.translate(.5,.5);context.lineWidth=1;context.strokeStyle="rgba(255,165,0,0.9)";context.setLineDash([1,2]);switch(item.type){case"body":bounds=item.bounds;context.beginPath();context.rect(Math.floor(bounds.min.x-3),Math.floor(bounds.min.y-3),Math.floor(bounds.max.x-bounds.min.x+6),Math.floor(bounds.max.y-bounds.min.y+6));context.closePath();context.stroke();break;case"constraint":var point=item.pointA;if(item.bodyA)point=item.pointB;context.beginPath();context.arc(point.x,point.y,10,0,2*Math.PI);context.closePath();context.stroke();break}context.setLineDash([]);context.translate(-.5,-.5)}if(inspector.selectStart!==null){context.translate(.5,.5);context.lineWidth=1;context.strokeStyle="rgba(255,165,0,0.6)";context.fillStyle="rgba(255,165,0,0.1)";bounds=inspector.selectBounds;context.beginPath();context.rect(Math.floor(bounds.min.x),Math.floor(bounds.min.y),Math.floor(bounds.max.x-bounds.min.x),Math.floor(bounds.max.y-bounds.min.y));context.closePath();context.stroke();context.fill();context.translate(-.5,-.5)}if(options.hasBounds)context.setTransform(1,0,0,1,0,0)};var _createCanvas=function(width,height){var canvas=document.createElement("canvas");canvas.width=width;canvas.height=height;canvas.oncontextmenu=function(){return false};canvas.onselectstart=function(){return false};return canvas};var _getPixelRatio=function(canvas){var context=canvas.getContext("2d"),devicePixelRatio=window.devicePixelRatio||1,backingStorePixelRatio=context.webkitBackingStorePixelRatio||context.mozBackingStorePixelRatio||context.msBackingStorePixelRatio||context.oBackingStorePixelRatio||context.backingStorePixelRatio||1;return devicePixelRatio/backingStorePixelRatio};var _getTexture=function(render,imagePath){var image=render.textures[imagePath];if(image)return image;image=render.textures[imagePath]=new Image;image.src=imagePath;return image};var _applyBackground=function(render,background){var cssBackground=background;if(/(jpg|gif|png)$/.test(background))cssBackground="url("+background+")";render.canvas.style.background=cssBackground;render.canvas.style.backgroundSize="contain";render.currentBackground=background}})()},{"../body/Composite":2,"../collision/Grid":6,"../core/Common":14,"../core/Events":16,"../core/Mouse":19,"../geometry/Bounds":26,"../geometry/Vector":28}],32:[function(_dereq_,module,exports){var RenderPixi={};module.exports=RenderPixi;var Bounds=_dereq_("../geometry/Bounds");var Composite=_dereq_("../body/Composite");var Common=_dereq_("../core/Common");var Events=_dereq_("../core/Events");var Vector=_dereq_("../geometry/Vector");(function(){var _requestAnimationFrame,_cancelAnimationFrame;if(typeof window!=="undefined"){_requestAnimationFrame=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame||function(callback){window.setTimeout(function(){callback(Common.now())},1e3/60)};_cancelAnimationFrame=window.cancelAnimationFrame||window.mozCancelAnimationFrame||window.webkitCancelAnimationFrame||window.msCancelAnimationFrame}RenderPixi.create=function(options){Common.warn("RenderPixi.create: Matter.RenderPixi is deprecated (see docs)");var defaults={controller:RenderPixi,engine:null,element:null,frameRequestId:null,canvas:null,renderer:null,container:null,spriteContainer:null,pixiOptions:null,options:{width:800,height:600,background:"#fafafa",wireframeBackground:"#222",hasBounds:false,enabled:true,wireframes:true,showSleeping:true,showDebug:false,showBroadphase:false,showBounds:false,showVelocity:false,showCollisions:false,showAxes:false,showPositions:false,showAngleIndicator:false,showIds:false,showShadows:false}};var render=Common.extend(defaults,options),transparent=!render.options.wireframes&&render.options.background==="transparent";render.pixiOptions=render.pixiOptions||{view:render.canvas,transparent:transparent,antialias:true,backgroundColor:options.background};render.mouse=options.mouse;render.engine=options.engine;render.renderer=render.renderer||new PIXI.WebGLRenderer(render.options.width,render.options.height,render.pixiOptions);render.container=render.container||new PIXI.Container;render.spriteContainer=render.spriteContainer||new PIXI.Container;render.canvas=render.canvas||render.renderer.view;render.bounds=render.bounds||{min:{x:0,y:0},max:{x:render.options.width,y:render.options.height}};Events.on(render.engine,"beforeUpdate",function(){RenderPixi.clear(render)});render.textures={};render.sprites={};render.primitives={};render.container.addChild(render.spriteContainer);if(Common.isElement(render.element)){render.element.appendChild(render.canvas)}else{Common.warn('No "render.element" passed, "render.canvas" was not inserted into document.')}render.canvas.oncontextmenu=function(){return false};render.canvas.onselectstart=function(){return false};return render};RenderPixi.run=function(render){(function loop(time){render.frameRequestId=_requestAnimationFrame(loop);RenderPixi.world(render)})()};RenderPixi.stop=function(render){_cancelAnimationFrame(render.frameRequestId)};RenderPixi.clear=function(render){var container=render.container,spriteContainer=render.spriteContainer;while(container.children[0]){container.removeChild(container.children[0])}while(spriteContainer.children[0]){spriteContainer.removeChild(spriteContainer.children[0])}var bgSprite=render.sprites["bg-0"];render.textures={};render.sprites={};render.primitives={};render.sprites["bg-0"]=bgSprite;if(bgSprite)container.addChildAt(bgSprite,0);render.container.addChild(render.spriteContainer);render.currentBackground=null;container.scale.set(1,1);container.position.set(0,0)};RenderPixi.setBackground=function(render,background){if(render.currentBackground!==background){var isColor=background.indexOf&&background.indexOf("#")!==-1,bgSprite=render.sprites["bg-0"];if(isColor){var color=Common.colorToNumber(background);
render.renderer.backgroundColor=color;if(bgSprite)render.container.removeChild(bgSprite)}else{if(!bgSprite){var texture=_getTexture(render,background);bgSprite=render.sprites["bg-0"]=new PIXI.Sprite(texture);bgSprite.position.x=0;bgSprite.position.y=0;render.container.addChildAt(bgSprite,0)}}render.currentBackground=background}};RenderPixi.world=function(render){var engine=render.engine,world=engine.world,renderer=render.renderer,container=render.container,options=render.options,bodies=Composite.allBodies(world),allConstraints=Composite.allConstraints(world),constraints=[],i;if(options.wireframes){RenderPixi.setBackground(render,options.wireframeBackground)}else{RenderPixi.setBackground(render,options.background)}var boundsWidth=render.bounds.max.x-render.bounds.min.x,boundsHeight=render.bounds.max.y-render.bounds.min.y,boundsScaleX=boundsWidth/render.options.width,boundsScaleY=boundsHeight/render.options.height;if(options.hasBounds){for(i=0;i<bodies.length;i++){var body=bodies[i];body.render.sprite.visible=Bounds.overlaps(body.bounds,render.bounds)}for(i=0;i<allConstraints.length;i++){var constraint=allConstraints[i],bodyA=constraint.bodyA,bodyB=constraint.bodyB,pointAWorld=constraint.pointA,pointBWorld=constraint.pointB;if(bodyA)pointAWorld=Vector.add(bodyA.position,constraint.pointA);if(bodyB)pointBWorld=Vector.add(bodyB.position,constraint.pointB);if(!pointAWorld||!pointBWorld)continue;if(Bounds.contains(render.bounds,pointAWorld)||Bounds.contains(render.bounds,pointBWorld))constraints.push(constraint)}container.scale.set(1/boundsScaleX,1/boundsScaleY);container.position.set(-render.bounds.min.x*(1/boundsScaleX),-render.bounds.min.y*(1/boundsScaleY))}else{constraints=allConstraints}for(i=0;i<bodies.length;i++)RenderPixi.body(render,bodies[i]);for(i=0;i<constraints.length;i++)RenderPixi.constraint(render,constraints[i]);renderer.render(container)};RenderPixi.constraint=function(render,constraint){var engine=render.engine,bodyA=constraint.bodyA,bodyB=constraint.bodyB,pointA=constraint.pointA,pointB=constraint.pointB,container=render.container,constraintRender=constraint.render,primitiveId="c-"+constraint.id,primitive=render.primitives[primitiveId];if(!primitive)primitive=render.primitives[primitiveId]=new PIXI.Graphics;if(!constraintRender.visible||!constraint.pointA||!constraint.pointB){primitive.clear();return}if(Common.indexOf(container.children,primitive)===-1)container.addChild(primitive);primitive.clear();primitive.beginFill(0,0);primitive.lineStyle(constraintRender.lineWidth,Common.colorToNumber(constraintRender.strokeStyle),1);if(bodyA){primitive.moveTo(bodyA.position.x+pointA.x,bodyA.position.y+pointA.y)}else{primitive.moveTo(pointA.x,pointA.y)}if(bodyB){primitive.lineTo(bodyB.position.x+pointB.x,bodyB.position.y+pointB.y)}else{primitive.lineTo(pointB.x,pointB.y)}primitive.endFill()};RenderPixi.body=function(render,body){var engine=render.engine,bodyRender=body.render;if(!bodyRender.visible)return;if(bodyRender.sprite&&bodyRender.sprite.texture){var spriteId="b-"+body.id,sprite=render.sprites[spriteId],spriteContainer=render.spriteContainer;if(!sprite)sprite=render.sprites[spriteId]=_createBodySprite(render,body);if(Common.indexOf(spriteContainer.children,sprite)===-1)spriteContainer.addChild(sprite);sprite.position.x=body.position.x;sprite.position.y=body.position.y;sprite.rotation=body.angle;sprite.scale.x=bodyRender.sprite.xScale||1;sprite.scale.y=bodyRender.sprite.yScale||1}else{var primitiveId="b-"+body.id,primitive=render.primitives[primitiveId],container=render.container;if(!primitive){primitive=render.primitives[primitiveId]=_createBodyPrimitive(render,body);primitive.initialAngle=body.angle}if(Common.indexOf(container.children,primitive)===-1)container.addChild(primitive);primitive.position.x=body.position.x;primitive.position.y=body.position.y;primitive.rotation=body.angle-primitive.initialAngle}};var _createBodySprite=function(render,body){var bodyRender=body.render,texturePath=bodyRender.sprite.texture,texture=_getTexture(render,texturePath),sprite=new PIXI.Sprite(texture);sprite.anchor.x=body.render.sprite.xOffset;sprite.anchor.y=body.render.sprite.yOffset;return sprite};var _createBodyPrimitive=function(render,body){var bodyRender=body.render,options=render.options,primitive=new PIXI.Graphics,fillStyle=Common.colorToNumber(bodyRender.fillStyle),strokeStyle=Common.colorToNumber(bodyRender.strokeStyle),strokeStyleIndicator=Common.colorToNumber(bodyRender.strokeStyle),strokeStyleWireframe=Common.colorToNumber("#bbb"),strokeStyleWireframeIndicator=Common.colorToNumber("#CD5C5C"),part;primitive.clear();for(var k=body.parts.length>1?1:0;k<body.parts.length;k++){part=body.parts[k];if(!options.wireframes){primitive.beginFill(fillStyle,1);primitive.lineStyle(bodyRender.lineWidth,strokeStyle,1)}else{primitive.beginFill(0,0);primitive.lineStyle(1,strokeStyleWireframe,1)}primitive.moveTo(part.vertices[0].x-body.position.x,part.vertices[0].y-body.position.y);for(var j=1;j<part.vertices.length;j++){primitive.lineTo(part.vertices[j].x-body.position.x,part.vertices[j].y-body.position.y)}primitive.lineTo(part.vertices[0].x-body.position.x,part.vertices[0].y-body.position.y);primitive.endFill();if(options.showAngleIndicator||options.showAxes){primitive.beginFill(0,0);if(options.wireframes){primitive.lineStyle(1,strokeStyleWireframeIndicator,1)}else{primitive.lineStyle(1,strokeStyleIndicator)}primitive.moveTo(part.position.x-body.position.x,part.position.y-body.position.y);primitive.lineTo((part.vertices[0].x+part.vertices[part.vertices.length-1].x)/2-body.position.x,(part.vertices[0].y+part.vertices[part.vertices.length-1].y)/2-body.position.y);primitive.endFill()}}return primitive};var _getTexture=function(render,imagePath){var texture=render.textures[imagePath];if(!texture)texture=render.textures[imagePath]=PIXI.Texture.fromImage(imagePath);return texture}})()},{"../body/Composite":2,"../core/Common":14,"../core/Events":16,"../geometry/Bounds":26,"../geometry/Vector":28}]},{},[30])(30)});