liabru-matter-js/build/matter.min.js

/*!
 * matter-js 0.20.0 by @liabru
 * http://brm.io/matter-js/
 * License MIT
 */
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a=o.allBodies(t);o.removeCompositeAt(e,i);for(var s=0;s<a.length;s++)a[s].sleepCounter=0}if(n)for(s=0;s<e.composites.length;s++)o.removeComposite(e.composites[s],t,!0);return e},o.removeCompositeAt=function(e,t){return e.composites.splice(t,1),o.setModified(e,!0,!0,!1),e},o.addBody=function(e,t){return e.bodies.push(t),o.setModified(e,!0,!0,!1),e},o.removeBody=function(e,t,n){var i=r.indexOf(e.bodies,t);if(-1!==i&&(o.removeBodyAt(e,i),t.sleepCounter=0),n)for(var a=0;a<e.composites.length;a++)o.removeBody(e.composites[a],t,!0);return e},o.removeBodyAt=function(e,t){return e.bodies.splice(t,1),o.setModified(e,!0,!0,!1),e},o.addConstraint=function(e,t){return e.constraints.push(t),o.setModified(e,!0,!0,!1),e},o.removeConstraint=function(e,t,n){var i=r.indexOf(e.constraints,t);if(-1!==i&&o.removeConstraintAt(e,i),n)for(var a=0;a<e.composites.length;a++)o.removeConstraint(e.composites[a],t,!0);return e},o.removeConstraintAt=function(e,t){return e.constraints.splice(t,1),o.setModified(e,!0,!0,!1),e},o.clear=function(e,t,n){if(n)for(var i=0;i<e.composites.length;i++)o.clear(e.composites[i],t,!0);return t?e.bodies=e.bodies.filter((function(e){return e.isStatic})):e.bodies.length=0,e.constraints.length=0,e.composites.length=0,o.setModified(e,!0,!0,!1),e},o.allBodies=function(e){if(e.cache&&e.cache.allBodies)return e.cache.allBodies;for(var t=[].concat(e.bodies),n=0;n<e.composites.length;n++)t=t.concat(o.allBodies(e.composites[n]));return e.cache&&(e.cache.allBodies=t),t},o.allConstraints=function(e){if(e.cache&&e.cache.allConstraints)return e.cache.allConstraints;for(var t=[].concat(e.constraints),n=0;n<e.composites.length;n++)t=t.concat(o.allConstraints(e.composites[n]));return e.cache&&(e.cache.allConstraints=t),t},o.allComposites=function(e){if(e.cache&&e.cache.allComposites)return e.cache.allComposites;for(var t=[].concat(e.composites),n=0;n<e.composites.length;n++)t=t.concat(o.allComposites(e.composites[n]));return e.cache&&(e.cache.allComposites=t),t},o.get=function(e,t,n){var i,r;switch(n){case"body":i=o.allBodies(e);break;case"constraint":i=o.allConstraints(e);break;case"composite":i=o.allComposites(e).concat(e)}return i?0===(r=i.filter((function(e){return e.id.toString()===t.toString()}))).length?null:r[0]:null},o.move=function(e,t,n){return o.remove(e,t),o.add(n,t),e},o.rebase=function(e){for(var t=o.allBodies(e).concat(o.allConstraints(e)).concat(o.allComposites(e)),n=0;n<t.length;n++)t[n].id=r.nextId();return e},o.translate=function(e,t,n){for(var i=n?o.allBodies(e):e.bodies,r=0;r<i.length;r++)s.translate(i[r],t);return e},o.rotate=function(e,t,n,i){for(var r=Math.cos(t),a=Math.sin(t),l=i?o.allBodies(e):e.bodies,c=0;c<l.length;c++){var u=l[c],d=u.position.x-n.x,p=u.position.y-n.y;s.setPosition(u,{x:n.x+(d*r-p*a),y:n.y+(d*a+p*r)}),s.rotate(u,t)}return e},o.scale=function(e,t,n,i,r){for(var a=r?o.allBodies(e):e.bodies,l=0;l<a.length;l++){var 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o=t.supports,i=t.supportCount,r=e.contacts,a=t.parentA,s=t.parentB;e.isActive=!0,e.timeUpdated=n,e.collision=t,e.separation=t.depth,e.inverseMass=a.inverseMass+s.inverseMass,e.friction=a.friction<s.friction?a.friction:s.friction,e.frictionStatic=a.frictionStatic>s.frictionStatic?a.frictionStatic:s.frictionStatic,e.restitution=a.restitution>s.restitution?a.restitution:s.restitution,e.slop=a.slop>s.slop?a.slop:s.slop,e.contactCount=i,t.pair=e;var l=o[0],c=r[0],u=o[1],d=r[1];d.vertex!==l&&c.vertex!==u||(r[1]=c,r[0]=c=d,d=r[1]),c.vertex=l,d.vertex=u},o.setActive=function(e,t,n){t?(e.isActive=!0,e.timeUpdated=n):(e.isActive=!1,e.contactCount=0)},o.id=function(e,t){return e.id<t.id?e.id.toString(36)+":"+t.id.toString(36):t.id.toString(36)+":"+e.id.toString(36)}},function(e,t,n){var o={};e.exports=o;var i=n(3),r=n(2),a=n(7),s=n(1),l=n(11),c=n(0);o._warming=.4,o._torqueDampen=1,o._minLength=1e-6,o.create=function(e){var 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n=c.clamp(t/c._baseDelta,0,1),i=0;i<e.length;i+=1){var r=e[i],a=!r.bodyA||r.bodyA&&r.bodyA.isStatic,s=!r.bodyB||r.bodyB&&r.bodyB.isStatic;(a||s)&&o.solve(e[i],n)}for(i=0;i<e.length;i+=1)a=!(r=e[i]).bodyA||r.bodyA&&r.bodyA.isStatic,s=!r.bodyB||r.bodyB&&r.bodyB.isStatic,a||s||o.solve(e[i],n)},o.solve=function(e,t){var n=e.bodyA,i=e.bodyB,a=e.pointA,s=e.pointB;if(n||i){n&&!n.isStatic&&(r.rotate(a,n.angle-e.angleA,a),e.angleA=n.angle),i&&!i.isStatic&&(r.rotate(s,i.angle-e.angleB,s),e.angleB=i.angle);var l=a,c=s;if(n&&(l=r.add(n.position,a)),i&&(c=r.add(i.position,s)),l&&c){var u=r.sub(l,c),d=r.magnitude(u);d<o._minLength&&(d=o._minLength);var p,f,v,m,y,g=(d-e.length)/d,x=e.stiffness>=1||0===e.length?e.stiffness*t:e.stiffness*t*t,h=e.damping*t,b=r.mult(u,g*x),S=(n?n.inverseMass:0)+(i?i.inverseMass:0),w=S+((n?n.inverseInertia:0)+(i?i.inverseInertia:0));if(h>0){var 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d=n.parts[u];i.translate(d.vertices,c),u>0&&(d.position.x+=c.x,d.position.y+=c.y),0!==c.angle&&(i.rotate(d.vertices,c.angle,n.position),l.rotate(d.axes,c.angle),u>0&&r.rotateAbout(d.position,c.angle,n.position,d.position)),s.update(d.bounds,d.vertices,n.velocity)}c.angle*=o._warming,c.x*=o._warming,c.y*=o._warming}}},o.pointAWorld=function(e){return{x:(e.bodyA?e.bodyA.position.x:0)+(e.pointA?e.pointA.x:0),y:(e.bodyA?e.bodyA.position.y:0)+(e.pointA?e.pointA.y:0)}},o.pointBWorld=function(e){return{x:(e.bodyB?e.bodyB.position.x:0)+(e.pointB?e.pointB.x:0),y:(e.bodyB?e.bodyB.position.y:0)+(e.pointB?e.pointB.y:0)}},o.currentLength=function(e){var t=(e.bodyA?e.bodyA.position.x:0)+(e.pointA?e.pointA.x:0),n=(e.bodyA?e.bodyA.position.y:0)+(e.pointA?e.pointA.y:0),o=t-((e.bodyB?e.bodyB.position.x:0)+(e.pointB?e.pointB.x:0)),i=n-((e.bodyB?e.bodyB.position.y:0)+(e.pointB?e.pointB.y:0));return Math.sqrt(o*o+i*i)}},function(e,t,n){var o={};e.exports=o;var 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w=S>1?1:0,A=x>1?1:0;A<x;A++)for(var P=p.parts[A],B=(f=P.bounds,w);B<S;B++){var M,_=b.parts[B],C=_.bounds;f.min.x>C.max.x||f.max.x<C.min.x||f.max.y<C.min.y||f.min.y>C.max.y||(M=c(P,_,i))&&(u[d++]=M)}}}}return u.length!==d&&(u.length=d),u},o.canCollide=function(e,t){return e.group===t.group&&0!==e.group?e.group>0:0!=(e.mask&t.category)&&0!=(t.mask&e.category)},o._compareBoundsX=function(e,t){return e.bounds.min.x-t.bounds.min.x}},function(e,t,n){var o={};e.exports=o;var i=n(0);o.create=function(e){var t={};return e||i.log("Mouse.create: element was undefined, defaulting to document.body","warn"),t.element=e||document.body,t.absolute={x:0,y:0},t.position={x:0,y:0},t.mousedownPosition={x:0,y:0},t.mouseupPosition={x:0,y:0},t.offset={x:0,y:0},t.scale={x:1,y:1},t.wheelDelta=0,t.button=-1,t.pixelRatio=parseInt(t.element.getAttribute("data-pixel-ratio"),10)||1,t.sourceEvents={mousemove:null,mousedown:null,mouseup:null,mousewheel:null},t.mousemove=function(e){var n=o._getRelativeMousePosition(e,t.element,t.pixelRatio);e.changedTouches&&(t.button=0,e.preventDefault()),t.absolute.x=n.x,t.absolute.y=n.y,t.position.x=t.absolute.x*t.scale.x+t.offset.x,t.position.y=t.absolute.y*t.scale.y+t.offset.y,t.sourceEvents.mousemove=e},t.mousedown=function(e){var n=o._getRelativeMousePosition(e,t.element,t.pixelRatio);e.changedTouches?(t.button=0,e.preventDefault()):t.button=e.button,t.absolute.x=n.x,t.absolute.y=n.y,t.position.x=t.absolute.x*t.scale.x+t.offset.x,t.position.y=t.absolute.y*t.scale.y+t.offset.y,t.mousedownPosition.x=t.position.x,t.mousedownPosition.y=t.position.y,t.sourceEvents.mousedown=e},t.mouseup=function(e){var n=o._getRelativeMousePosition(e,t.element,t.pixelRatio);e.changedTouches&&e.preventDefault(),t.button=-1,t.absolute.x=n.x,t.absolute.y=n.y,t.position.x=t.absolute.x*t.scale.x+t.offset.x,t.position.y=t.absolute.y*t.scale.y+t.offset.y,t.mouseupPosition.x=t.position.x,t.mouseupPosition.y=t.position.y,t.sourceEvents.mouseup=e},t.mousewheel=function(e){t.wheelDelta=Math.max(-1,Math.min(1,e.wheelDelta||-e.detail)),e.preventDefault(),t.sourceEvents.mousewheel=e},o.setElement(t,t.element),t},o.setElement=function(e,t){e.element=t,t.addEventListener("mousemove",e.mousemove,{passive:!0}),t.addEventListener("mousedown",e.mousedown,{passive:!0}),t.addEventListener("mouseup",e.mouseup,{passive:!0}),t.addEventListener("wheel",e.mousewheel,{passive:!1}),t.addEventListener("touchmove",e.mousemove,{passive:!1}),t.addEventListener("touchstart",e.mousedown,{passive:!1}),t.addEventListener("touchend",e.mouseup,{passive:!1})},o.clearSourceEvents=function(e){e.sourceEvents.mousemove=null,e.sourceEvents.mousedown=null,e.sourceEvents.mouseup=null,e.sourceEvents.mousewheel=null,e.wheelDelta=0},o.setOffset=function(e,t){e.offset.x=t.x,e.offset.y=t.y,e.position.x=e.absolute.x*e.scale.x+e.offset.x,e.position.y=e.absolute.y*e.scale.y+e.offset.y},o.setScale=function(e,t){e.scale.x=t.x,e.scale.y=t.y,e.position.x=e.absolute.x*e.scale.x+e.offset.x,e.position.y=e.absolute.y*e.scale.y+e.offset.y},o._getRelativeMousePosition=function(e,t,n){var 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"+o.toString(l)),e.used.push(l.name)):a.push("❌ "+r[s])}a.length>0&&i.info(a.join("  "))}else i.warn("Plugin.use:",o.toString(e),"does not specify any dependencies to install.")},o.dependencies=function(e,t){var n=o.dependencyParse(e),r=n.name;if(!(r in(t=t||{}))){e=o.resolve(e)||e,t[r]=i.map(e.uses||[],(function(t){o.isPlugin(t)&&o.register(t);var r=o.dependencyParse(t),a=o.resolve(t);return a&&!o.versionSatisfies(a.version,r.range)?(i.warn("Plugin.dependencies:",o.toString(a),"does not satisfy",o.toString(r),"used by",o.toString(n)+"."),a._warned=!0,e._warned=!0):a||(i.warn("Plugin.dependencies:",o.toString(t),"used by",o.toString(n),"could not be resolved."),e._warned=!0),r.name}));for(var a=0;a<t[r].length;a+=1)o.dependencies(t[r][a],t);return t}},o.dependencyParse=function(e){return i.isString(e)?(/^[\w-]+(@(\*|[\^~]?\d+\.\d+\.\d+(-[0-9A-Za-z-+]+)?))?$/.test(e)||i.warn("Plugin.dependencyParse:",e,"is not a valid dependency string."),{name:e.split("@")[0],range:e.split("@")[1]||"*"}):{name:e.name,range:e.range||e.version}},o.versionParse=function(e){var t=/^(\*)|(\^|~|>=|>)?\s*((\d+)\.(\d+)\.(\d+))(-[0-9A-Za-z-+]+)?$/;t.test(e)||i.warn("Plugin.versionParse:",e,"is not a valid version or range.");var n=t.exec(e),o=Number(n[4]),r=Number(n[5]),a=Number(n[6]);return{isRange:Boolean(n[1]||n[2]),version:n[3],range:e,operator:n[1]||n[2]||"",major:o,minor:r,patch:a,parts:[o,r,a],prerelease:n[7],number:1e8*o+1e4*r+a}},o.versionSatisfies=function(e,t){t=t||"*";var n=o.versionParse(t),i=o.versionParse(e);if(n.isRange){if("*"===n.operator||"*"===e)return!0;if(">"===n.operator)return i.number>n.number;if(">="===n.operator)return i.number>=n.number;if("~"===n.operator)return i.major===n.major&&i.minor===n.minor&&i.patch>=n.patch;if("^"===n.operator)return n.major>0?i.major===n.major&&i.number>=n.number:n.minor>0?i.minor===n.minor&&i.patch>=n.patch:i.patch===n.patch}return e===t||"*"===e}},function(e,t){var n={};e.exports=n,n.create=function(e){return{vertex:e,normalImpulse:0,tangentImpulse:0}}},function(e,t,n){var o={};e.exports=o;var i=n(7),r=n(18),a=n(13),s=n(19),l=n(5),c=n(6),u=n(10),d=n(0),p=n(4);o._deltaMax=1e3/60,o.create=function(e){e=e||{};var t=d.extend({positionIterations:6,velocityIterations:4,constraintIterations:2,enableSleeping:!1,events:[],plugin:{},gravity:{x:0,y:1,scale:.001},timing:{timestamp:0,timeScale:1,lastDelta:0,lastElapsed:0,lastUpdatesPerFrame:0}},e);return t.world=e.world||c.create({label:"World"}),t.pairs=e.pairs||s.create(),t.detector=e.detector||a.create(),t.detector.pairs=t.pairs,t.grid={buckets:[]},t.world.gravity=t.gravity,t.broadphase=t.grid,t.metrics={},t},o.update=function(e,t){var n,p=d.now(),f=e.world,v=e.detector,m=e.pairs,y=e.timing,g=y.timestamp;t>o._deltaMax&&d.warnOnce("Matter.Engine.update: delta argument is recommended to be less than or equal to",o._deltaMax.toFixed(3),"ms."),t=void 0!==t?t:d._baseDelta,t*=y.timeScale,y.timestamp+=t,y.lastDelta=t;var x={timestamp:y.timestamp,delta:t};l.trigger(e,"beforeUpdate",x);var h=c.allBodies(f),b=c.allConstraints(f);for(f.isModified&&(a.setBodies(v,h),c.setModified(f,!1,!1,!0)),e.enableSleeping&&i.update(h,t),o._bodiesApplyGravity(h,e.gravity),t>0&&o._bodiesUpdate(h,t),l.trigger(e,"beforeSolve",x),u.preSolveAll(h),n=0;n<e.constraintIterations;n++)u.solveAll(b,t);u.postSolveAll(h);var S=a.collisions(v);s.update(m,S,g),e.enableSleeping&&i.afterCollisions(m.list),m.collisionStart.length>0&&l.trigger(e,"collisionStart",{pairs:m.collisionStart,timestamp:y.timestamp,delta:t});var w=d.clamp(20/e.positionIterations,0,1);for(r.preSolvePosition(m.list),n=0;n<e.positionIterations;n++)r.solvePosition(m.list,t,w);for(r.postSolvePosition(h),u.preSolveAll(h),n=0;n<e.constraintIterations;n++)u.solveAll(b,t);for(u.postSolveAll(h),r.preSolveVelocity(m.list),n=0;n<e.velocityIterations;n++)r.solveVelocity(m.list,t);return o._bodiesUpdateVelocities(h),m.collisionActive.length>0&&l.trigger(e,"collisionActive",{pairs:m.collisionActive,timestamp:y.timestamp,delta:t}),m.collisionEnd.length>0&&l.trigger(e,"collisionEnd",{pairs:m.collisionEnd,timestamp:y.timestamp,delta:t}),o._bodiesClearForces(h),l.trigger(e,"afterUpdate",x),e.timing.lastElapsed=d.now()-p,e},o.merge=function(e,t){if(d.extend(e,t),t.world){e.world=t.world,o.clear(e);for(var n=c.allBodies(e.world),r=0;r<n.length;r++){var a=n[r];i.set(a,!1),a.id=d.nextId()}}},o.clear=function(e){s.clear(e.pairs),a.clear(e.detector)},o._bodiesClearForces=function(e){for(var t=e.length,n=0;n<t;n++){var o=e[n];o.force.x=0,o.force.y=0,o.torque=0}},o._bodiesApplyGravity=function(e,t){var n=void 0!==t.scale?t.scale:.001,o=e.length;if((0!==t.x||0!==t.y)&&0!==n)for(var i=0;i<o;i++){var r=e[i];r.isStatic||r.isSleeping||(r.force.y+=r.mass*t.y*n,r.force.x+=r.mass*t.x*n)}},o._bodiesUpdate=function(e,t){for(var n=e.length,o=0;o<n;o++){var i=e[o];i.isStatic||i.isSleeping||p.update(i,t)}},o._bodiesUpdateVelocities=function(e){for(var t=e.length,n=0;n<t;n++)p.updateVelocities(e[n])}},function(e,t,n){var o={};e.exports=o;var i=n(3),r=n(0),a=n(1);o._restingThresh=2,o._restingThreshTangent=Math.sqrt(6),o._positionDampen=.9,o._positionWarming=.8,o._frictionNormalMultiplier=5,o._frictionMaxStatic=Number.MAX_VALUE,o.preSolvePosition=function(e){var t,n,o,i=e.length;for(t=0;t<i;t++)(n=e[t]).isActive&&(o=n.contactCount,n.collision.parentA.totalContacts+=o,n.collision.parentB.totalContacts+=o)},o.solvePosition=function(e,t,n){var i,a,s,l,c,u,d,p,f=o._positionDampen*(n||1),v=r.clamp(t/r._baseDelta,0,1),m=e.length;for(i=0;i<m;i++)(a=e[i]).isActive&&!a.isSensor&&(l=(s=a.collision).parentA,c=s.parentB,u=s.normal,a.separation=s.depth+u.x*(c.positionImpulse.x-l.positionImpulse.x)+u.y*(c.positionImpulse.y-l.positionImpulse.y));for(i=0;i<m;i++)(a=e[i]).isActive&&!a.isSensor&&(l=(s=a.collision).parentA,c=s.parentB,u=s.normal,p=a.separation-a.slop*v,(l.isStatic||c.isStatic)&&(p*=2),l.isStatic||l.isSleeping||(d=f/l.totalContacts,l.positionImpulse.x+=u.x*p*d,l.positionImpulse.y+=u.y*p*d),c.isStatic||c.isSleeping||(d=f/c.totalContacts,c.positionImpulse.x-=u.x*p*d,c.positionImpulse.y-=u.y*p*d))},o.postSolvePosition=function(e){for(var t=o._positionWarming,n=e.length,r=i.translate,s=a.update,l=0;l<n;l++){var c=e[l],u=c.positionImpulse,d=u.x,p=u.y,f=c.velocity;if(c.totalContacts=0,0!==d||0!==p){for(var v=0;v<c.parts.length;v++){var m=c.parts[v];r(m.vertices,u),s(m.bounds,m.vertices,f),m.position.x+=d,m.position.y+=p}c.positionPrev.x+=d,c.positionPrev.y+=p,d*f.x+p*f.y<0?(u.x=0,u.y=0):(u.x*=t,u.y*=t)}}},o.preSolveVelocity=function(e){var t,n,o=e.length;for(t=0;t<o;t++){var i=e[t];if(i.isActive&&!i.isSensor){var r=i.contacts,a=i.contactCount,s=i.collision,l=s.parentA,c=s.parentB,u=s.normal,d=s.tangent;for(n=0;n<a;n++){var p=r[n],f=p.vertex,v=p.normalImpulse,m=p.tangentImpulse;if(0!==v||0!==m){var y=u.x*v+d.x*m,g=u.y*v+d.y*m;l.isStatic||l.isSleeping||(l.positionPrev.x+=y*l.inverseMass,l.positionPrev.y+=g*l.inverseMass,l.anglePrev+=l.inverseInertia*((f.x-l.position.x)*g-(f.y-l.position.y)*y)),c.isStatic||c.isSleeping||(c.positionPrev.x-=y*c.inverseMass,c.positionPrev.y-=g*c.inverseMass,c.anglePrev-=c.inverseInertia*((f.x-c.position.x)*g-(f.y-c.position.y)*y))}}}}},o.solveVelocity=function(e,t){var n,i,a,s,l=t/r._baseDelta,c=l*l*l,u=-o._restingThresh*l,d=o._restingThreshTangent,p=o._frictionNormalMultiplier*l,f=o._frictionMaxStatic,v=e.length;for(a=0;a<v;a++){var m=e[a];if(m.isActive&&!m.isSensor){var y=m.collision,g=y.parentA,x=y.parentB,h=y.normal.x,b=y.normal.y,S=y.tangent.x,w=y.tangent.y,A=m.inverseMass,P=m.friction*m.frictionStatic*p,B=m.contacts,M=m.contactCount,_=1/M,C=g.position.x-g.positionPrev.x,k=g.position.y-g.positionPrev.y,I=g.angle-g.anglePrev,T=x.position.x-x.positionPrev.x,R=x.position.y-x.positionPrev.y,D=x.angle-x.anglePrev;for(s=0;s<M;s++){var V=B[s],E=V.vertex,L=E.x-g.position.x,F=E.y-g.position.y,O=E.x-x.position.x,H=E.y-x.position.y,q=C-F*I-(T-H*D),j=k+L*I-(R+O*D),U=h*q+b*j,W=S*q+w*j,N=m.separation+U,G=Math.min(N,1),z=(G=N<0?0:G)*P;W<-z||W>z?(i=W>0?W:-W,(n=m.friction*(W>0?1:-1)*c)<-i?n=-i:n>i&&(n=i)):(n=W,i=f);var X=L*b-F*h,Q=O*b-H*h,Y=_/(A+g.inverseInertia*X*X+x.inverseInertia*Q*Q),Z=(1+m.restitution)*U*Y;if(n*=Y,U<u)V.normalImpulse=0;else{var $=V.normalImpulse;V.normalImpulse+=Z,V.normalImpulse>0&&(V.normalImpulse=0),Z=V.normalImpulse-$}if(W<-d||W>d)V.tangentImpulse=0;else{var J=V.tangentImpulse;V.tangentImpulse+=n,V.tangentImpulse<-i&&(V.tangentImpulse=-i),V.tangentImpulse>i&&(V.tangentImpulse=i),n=V.tangentImpulse-J}var K=h*Z+S*n,ee=b*Z+w*n;g.isStatic||g.isSleeping||(g.positionPrev.x+=K*g.inverseMass,g.positionPrev.y+=ee*g.inverseMass,g.anglePrev+=(L*ee-F*K)*g.inverseInertia),x.isStatic||x.isSleeping||(x.positionPrev.x-=K*x.inverseMass,x.positionPrev.y-=ee*x.inverseMass,x.anglePrev-=(O*ee-H*K)*x.inverseInertia)}}}}},function(e,t,n){var o={};e.exports=o;var i=n(9),r=n(0);o.create=function(e){return r.extend({table:{},list:[],collisionStart:[],collisionActive:[],collisionEnd:[]},e)},o.update=function(e,t,n){var o,r,a,s=i.update,l=i.create,c=i.setActive,u=e.table,d=e.list,p=d.length,f=p,v=e.collisionStart,m=e.collisionEnd,y=e.collisionActive,g=t.length,x=0,h=0,b=0;for(a=0;a<g;a++)(r=(o=t[a]).pair)?(r.isActive&&(y[b++]=r),s(r,o,n)):(u[(r=l(o,n)).id]=r,v[x++]=r,d[f++]=r);for(f=0,p=d.length,a=0;a<p;a++)(r=d[a]).timeUpdated>=n?d[f++]=r:(c(r,!1,n),r.collision.bodyA.sleepCounter>0&&r.collision.bodyB.sleepCounter>0?d[f++]=r:(m[h++]=r,delete u[r.id]));d.length!==f&&(d.length=f),v.length!==x&&(v.length=x),m.length!==h&&(m.length=h),y.length!==b&&(y.length=b)},o.clear=function(e){return e.table={},e.list.length=0,e.collisionStart.length=0,e.collisionActive.length=0,e.collisionEnd.length=0,e}},function(e,t,n){var o=e.exports=n(21);o.Axes=n(11),o.Bodies=n(12),o.Body=n(4),o.Bounds=n(1),o.Collision=n(8),o.Common=n(0),o.Composite=n(6),o.Composites=n(22),o.Constraint=n(10),o.Contact=n(16),o.Detector=n(13),o.Engine=n(17),o.Events=n(5),o.Grid=n(23),o.Mouse=n(14),o.MouseConstraint=n(24),o.Pair=n(9),o.Pairs=n(19),o.Plugin=n(15),o.Query=n(25),o.Render=n(26),o.Resolver=n(18),o.Runner=n(27),o.SAT=n(28),o.Sleeping=n(7),o.Svg=n(29),o.Vector=n(2),o.Vertices=n(3),o.World=n(30),o.Engine.run=o.Runner.run,o.Common.deprecated(o.Engine,"run","Engine.run ➤ use Matter.Runner.run(engine) instead")},function(e,t,n){var o={};e.exports=o;var i=n(15),r=n(0);o.name="matter-js",o.version="0.20.0",o.uses=[],o.used=[],o.use=function(){i.use(o,Array.prototype.slice.call(arguments))},o.before=function(e,t){return e=e.replace(/^Matter./,""),r.chainPathBefore(o,e,t)},o.after=function(e,t){return e=e.replace(/^Matter./,""),r.chainPathAfter(o,e,t)}},function(e,t,n){var o={};e.exports=o;var i=n(6),r=n(10),a=n(0),s=n(4),l=n(12),c=a.deprecated;o.stack=function(e,t,n,o,r,a,l){for(var c,u=i.create({label:"Stack"}),d=e,p=t,f=0,v=0;v<o;v++){for(var m=0,y=0;y<n;y++){var g=l(d,p,y,v,c,f);if(g){var x=g.bounds.max.y-g.bounds.min.y,h=g.bounds.max.x-g.bounds.min.x;x>m&&(m=x),s.translate(g,{x:.5*h,y:.5*x}),d=g.bounds.max.x+r,i.addBody(u,g),c=g,f+=1}else d+=r}p+=m+a,d=e}return u},o.chain=function(e,t,n,o,s,l){for(var c=e.bodies,u=1;u<c.length;u++){var d=c[u-1],p=c[u],f=d.bounds.max.y-d.bounds.min.y,v=d.bounds.max.x-d.bounds.min.x,m=p.bounds.max.y-p.bounds.min.y,y={bodyA:d,pointA:{x:v*t,y:f*n},bodyB:p,pointB:{x:(p.bounds.max.x-p.bounds.min.x)*o,y:m*s}},g=a.extend(y,l);i.addConstraint(e,r.create(g))}return e.label+=" Chain",e},o.mesh=function(e,t,n,o,s){var l,c,u,d,p,f=e.bodies;for(l=0;l<n;l++){for(c=1;c<t;c++)u=f[c-1+l*t],d=f[c+l*t],i.addConstraint(e,r.create(a.extend({bodyA:u,bodyB:d},s)));if(l>0)for(c=0;c<t;c++)u=f[c+(l-1)*t],d=f[c+l*t],i.addConstraint(e,r.create(a.extend({bodyA:u,bodyB:d},s))),o&&c>0&&(p=f[c-1+(l-1)*t],i.addConstraint(e,r.create(a.extend({bodyA:p,bodyB:d},s)))),o&&c<t-1&&(p=f[c+1+(l-1)*t],i.addConstraint(e,r.create(a.extend({bodyA:p,bodyB:d},s))))}return e.label+=" Mesh",e},o.pyramid=function(e,t,n,i,r,a,l){return o.stack(e,t,n,i,r,a,(function(t,o,a,c,u,d){var p=Math.min(i,Math.ceil(n/2)),f=u?u.bounds.max.x-u.bounds.min.x:0;if(!(c>p||a<(c=p-c)||a>n-1-c))return 1===d&&s.translate(u,{x:(a+(n%2==1?1:-1))*f,y:0}),l(e+(u?a*f:0)+a*r,o,a,c,u,d)}))},o.newtonsCradle=function(e,t,n,o,a){for(var s=i.create({label:"Newtons Cradle"}),c=0;c<n;c++){var u=l.circle(e+c*(1.9*o),t+a,o,{inertia:1/0,restitution:1,friction:0,frictionAir:1e-4,slop:1}),d=r.create({pointA:{x:e+c*(1.9*o),y:t},bodyB:u});i.addBody(s,u),i.addConstraint(s,d)}return s},c(o,"newtonsCradle","Composites.newtonsCradle ➤ moved to newtonsCradle example"),o.car=function(e,t,n,o,a){var c=s.nextGroup(!0),u=.5*-n+20,d=.5*n-20,p=i.create({label:"Car"}),f=l.rectangle(e,t,n,o,{collisionFilter:{group:c},chamfer:{radius:.5*o},density:2e-4}),v=l.circle(e+u,t+0,a,{collisionFilter:{group:c},friction:.8}),m=l.circle(e+d,t+0,a,{collisionFilter:{group:c},friction:.8}),y=r.create({bodyB:f,pointB:{x:u,y:0},bodyA:v,stiffness:1,length:0}),g=r.create({bodyB:f,pointB:{x:d,y:0},bodyA:m,stiffness:1,length:0});return i.addBody(p,f),i.addBody(p,v),i.addBody(p,m),i.addConstraint(p,y),i.addConstraint(p,g),p},c(o,"car","Composites.car ➤ moved to car example"),o.softBody=function(e,t,n,i,r,s,c,u,d,p){d=a.extend({inertia:1/0},d),p=a.extend({stiffness:.2,render:{type:"line",anchors:!1}},p);var f=o.stack(e,t,n,i,r,s,(function(e,t){return l.circle(e,t,u,d)}));return o.mesh(f,n,i,c,p),f.label="Soft Body",f},c(o,"softBody","Composites.softBody ➤ moved to softBody and cloth examples")},function(e,t,n){var o={};e.exports=o;var i=n(9),r=n(0),a=r.deprecated;o.create=function(e){return r.extend({buckets:{},pairs:{},pairsList:[],bucketWidth:48,bucketHeight:48},e)},o.update=function(e,t,n,i){var r,a,s,l,c,u=n.world,d=e.buckets,p=!1;for(r=0;r<t.length;r++){var f=t[r];if((!f.isSleeping||i)&&(!u.bounds||!(f.bounds.max.x<u.bounds.min.x||f.bounds.min.x>u.bounds.max.x||f.bounds.max.y<u.bounds.min.y||f.bounds.min.y>u.bounds.max.y))){var v=o._getRegion(e,f);if(!f.region||v.id!==f.region.id||i){f.region&&!i||(f.region=v);var m=o._regionUnion(v,f.region);for(a=m.startCol;a<=m.endCol;a++)for(s=m.startRow;s<=m.endRow;s++){l=d[c=o._getBucketId(a,s)];var y=a>=v.startCol&&a<=v.endCol&&s>=v.startRow&&s<=v.endRow,g=a>=f.region.startCol&&a<=f.region.endCol&&s>=f.region.startRow&&s<=f.region.endRow;!y&&g&&g&&l&&o._bucketRemoveBody(e,l,f),(f.region===v||y&&!g||i)&&(l||(l=o._createBucket(d,c)),o._bucketAddBody(e,l,f))}f.region=v,p=!0}}}p&&(e.pairsList=o._createActivePairsList(e))},a(o,"update","Grid.update ➤ replaced by Matter.Detector"),o.clear=function(e){e.buckets={},e.pairs={},e.pairsList=[]},a(o,"clear","Grid.clear ➤ replaced by Matter.Detector"),o._regionUnion=function(e,t){var n=Math.min(e.startCol,t.startCol),i=Math.max(e.endCol,t.endCol),r=Math.min(e.startRow,t.startRow),a=Math.max(e.endRow,t.endRow);return o._createRegion(n,i,r,a)},o._getRegion=function(e,t){var n=t.bounds,i=Math.floor(n.min.x/e.bucketWidth),r=Math.floor(n.max.x/e.bucketWidth),a=Math.floor(n.min.y/e.bucketHeight),s=Math.floor(n.max.y/e.bucketHeight);return o._createRegion(i,r,a,s)},o._createRegion=function(e,t,n,o){return{id:e+","+t+","+n+","+o,startCol:e,endCol:t,startRow:n,endRow:o}},o._getBucketId=function(e,t){return"C"+e+"R"+t},o._createBucket=function(e,t){return e[t]=[]},o._bucketAddBody=function(e,t,n){var o,r=e.pairs,a=i.id,s=t.length;for(o=0;o<s;o++){var l=t[o];if(!(n.id===l.id||n.isStatic&&l.isStatic)){var c=a(n,l),u=r[c];u?u[2]+=1:r[c]=[n,l,1]}}t.push(n)},o._bucketRemoveBody=function(e,t,n){var o,a=e.pairs,s=i.id;t.splice(r.indexOf(t,n),1);var l=t.length;for(o=0;o<l;o++){var c=a[s(n,t[o])];c&&(c[2]-=1)}},o._createActivePairsList=function(e){var t,n,o=e.pairs,i=r.keys(o),a=i.length,s=[];for(n=0;n<a;n++)(t=o[i[n]])[2]>0?s.push(t):delete o[i[n]];return s}},function(e,t,n){var o={};e.exports=o;var i=n(3),r=n(7),a=n(14),s=n(5),l=n(13),c=n(10),u=n(6),d=n(0),p=n(1);o.create=function(e,t){var n=(e?e.mouse:null)||(t?t.mouse:null);n||(e&&e.render&&e.render.canvas?n=a.create(e.render.canvas):t&&t.element?n=a.create(t.element):(n=a.create(),d.warn("MouseConstraint.create: options.mouse was undefined, options.element was undefined, may not function as expected")));var i={type:"mouseConstraint",mouse:n,element:null,body:null,constraint:c.create({label:"Mouse Constraint",pointA:n.position,pointB:{x:0,y:0},length:.01,stiffness:.1,angularStiffness:1,render:{strokeStyle:"#90EE90",lineWidth:3}}),collisionFilter:{category:1,mask:4294967295,group:0}},r=d.extend(i,t);return s.on(e,"beforeUpdate",(function(){var t=u.allBodies(e.world);o.update(r,t),o._triggerEvents(r)})),r},o.update=function(e,t){var n=e.mouse,o=e.constraint,a=e.body;if(0===n.button){if(o.bodyB)r.set(o.bodyB,!1),o.pointA=n.position;else for(var c=0;c<t.length;c++)if(a=t[c],p.contains(a.bounds,n.position)&&l.canCollide(a.collisionFilter,e.collisionFilter))for(var u=a.parts.length>1?1:0;u<a.parts.length;u++){var d=a.parts[u];if(i.contains(d.vertices,n.position)){o.pointA=n.position,o.bodyB=e.body=a,o.pointB={x:n.position.x-a.position.x,y:n.position.y-a.position.y},o.angleB=a.angle,r.set(a,!1),s.trigger(e,"startdrag",{mouse:n,body:a});break}}}else o.bodyB=e.body=null,o.pointB=null,a&&s.trigger(e,"enddrag",{mouse:n,body:a})},o._triggerEvents=function(e){var t=e.mouse,n=t.sourceEvents;n.mousemove&&s.trigger(e,"mousemove",{mouse:t}),n.mousedown&&s.trigger(e,"mousedown",{mouse:t}),n.mouseup&&s.trigger(e,"mouseup",{mouse:t}),a.clearSourceEvents(t)}},function(e,t,n){var o={};e.exports=o;var i=n(2),r=n(8),a=n(1),s=n(12),l=n(3);o.collides=function(e,t){for(var n=[],o=t.length,i=e.bounds,s=r.collides,l=a.overlaps,c=0;c<o;c++){var u=t[c],d=u.parts.length,p=1===d?0:1;if(l(u.bounds,i))for(var f=p;f<d;f++){var v=u.parts[f];if(l(v.bounds,i)){var m=s(v,e);if(m){n.push(m);break}}}}return n},o.ray=function(e,t,n,r){r=r||1e-100;for(var a=i.angle(t,n),l=i.magnitude(i.sub(t,n)),c=.5*(n.x+t.x),u=.5*(n.y+t.y),d=s.rectangle(c,u,l,r,{angle:a}),p=o.collides(d,e),f=0;f<p.length;f+=1){var v=p[f];v.body=v.bodyB=v.bodyA}return p},o.region=function(e,t,n){for(var o=[],i=0;i<e.length;i++){var r=e[i],s=a.overlaps(r.bounds,t);(s&&!n||!s&&n)&&o.push(r)}return o},o.point=function(e,t){for(var n=[],o=0;o<e.length;o++){var i=e[o];if(a.contains(i.bounds,t))for(var r=1===i.parts.length?0:1;r<i.parts.length;r++){var s=i.parts[r];if(a.contains(s.bounds,t)&&l.contains(s.vertices,t)){n.push(i);break}}}return n}},function(e,t,n){var o={};e.exports=o;var i=n(4),r=n(0),a=n(6),s=n(1),l=n(5),c=n(2),u=n(14);!function(){var e,t;"undefined"!=typeof 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t={engine:null,element:null,canvas:null,mouse:null,frameRequestId:null,timing:{historySize:60,delta:0,deltaHistory:[],lastTime:0,lastTimestamp:0,lastElapsed:0,timestampElapsed:0,timestampElapsedHistory:[],engineDeltaHistory:[],engineElapsedHistory:[],engineUpdatesHistory:[],elapsedHistory:[]},options:{width:800,height:600,pixelRatio:1,background:"#14151f",wireframeBackground:"#14151f",wireframeStrokeStyle:"#bbb",hasBounds:!!e.bounds,enabled:!0,wireframes:!0,showSleeping:!0,showDebug:!1,showStats:!1,showPerformance:!1,showBounds:!1,showVelocity:!1,showCollisions:!1,showSeparations:!1,showAxes:!1,showPositions:!1,showAngleIndicator:!1,showIds:!1,showVertexNumbers:!1,showConvexHulls:!1,showInternalEdges:!1,showMousePosition:!1}},n=r.extend(t,e);return n.canvas&&(n.canvas.width=n.options.width||n.canvas.width,n.canvas.height=n.options.height||n.canvas.height),n.mouse=e.mouse,n.engine=e.engine,n.canvas=n.canvas||p(n.options.width,n.options.height),n.context=n.canvas.getContext("2d"),n.textures={},n.bounds=n.bounds||{min:{x:0,y:0},max:{x:n.canvas.width,y:n.canvas.height}},n.controller=o,n.options.showBroadphase=!1,1!==n.options.pixelRatio&&o.setPixelRatio(n,n.options.pixelRatio),r.isElement(n.element)&&n.element.appendChild(n.canvas),n},o.run=function(t){!function i(r){t.frameRequestId=e(i),n(t,r),o.world(t,r),t.context.setTransform(t.options.pixelRatio,0,0,t.options.pixelRatio,0,0),(t.options.showStats||t.options.showDebug)&&o.stats(t,t.context,r),(t.options.showPerformance||t.options.showDebug)&&o.performance(t,t.context,r),t.context.setTransform(1,0,0,1,0,0)}()},o.stop=function(e){t(e.frameRequestId)},o.setPixelRatio=function(e,t){var n=e.options,o=e.canvas;"auto"===t&&(t=f(o)),n.pixelRatio=t,o.setAttribute("data-pixel-ratio",t),o.width=n.width*t,o.height=n.height*t,o.style.width=n.width+"px",o.style.height=n.height+"px"},o.setSize=function(e,t,n){e.options.width=t,e.options.height=n,e.bounds.max.x=e.bounds.min.x+t,e.bounds.max.y=e.bounds.min.y+n,1!==e.options.pixelRatio?o.setPixelRatio(e,e.options.pixelRatio):(e.canvas.width=t,e.canvas.height=n)},o.lookAt=function(e,t,n,o){o=void 0===o||o,t=r.isArray(t)?t:[t],n=n||{x:0,y:0};for(var i={min:{x:1/0,y:1/0},max:{x:-1/0,y:-1/0}},a=0;a<t.length;a+=1){var s=t[a],l=s.bounds?s.bounds.min:s.min||s.position||s,c=s.bounds?s.bounds.max:s.max||s.position||s;l&&c&&(l.x<i.min.x&&(i.min.x=l.x),c.x>i.max.x&&(i.max.x=c.x),l.y<i.min.y&&(i.min.y=l.y),c.y>i.max.y&&(i.max.y=c.y))}var d=i.max.x-i.min.x+2*n.x,p=i.max.y-i.min.y+2*n.y,f=e.canvas.height,v=e.canvas.width/f,m=d/p,y=1,g=1;m>v?g=m/v:y=v/m,e.options.hasBounds=!0,e.bounds.min.x=i.min.x,e.bounds.max.x=i.min.x+d*y,e.bounds.min.y=i.min.y,e.bounds.max.y=i.min.y+p*g,o&&(e.bounds.min.x+=.5*d-d*y*.5,e.bounds.max.x+=.5*d-d*y*.5,e.bounds.min.y+=.5*p-p*g*.5,e.bounds.max.y+=.5*p-p*g*.5),e.bounds.min.x-=n.x,e.bounds.max.x-=n.x,e.bounds.min.y-=n.y,e.bounds.max.y-=n.y,e.mouse&&(u.setScale(e.mouse,{x:(e.bounds.max.x-e.bounds.min.x)/e.canvas.width,y:(e.bounds.max.y-e.bounds.min.y)/e.canvas.height}),u.setOffset(e.mouse,e.bounds.min))},o.startViewTransform=function(e){var t=e.bounds.max.x-e.bounds.min.x,n=e.bounds.max.y-e.bounds.min.y,o=t/e.options.width,i=n/e.options.height;e.context.setTransform(e.options.pixelRatio/o,0,0,e.options.pixelRatio/i,0,0),e.context.translate(-e.bounds.min.x,-e.bounds.min.y)},o.endViewTransform=function(e){e.context.setTransform(e.options.pixelRatio,0,0,e.options.pixelRatio,0,0)},o.world=function(e,t){var n,i=r.now(),d=e.engine,p=d.world,f=e.canvas,v=e.context,y=e.options,g=e.timing,x=a.allBodies(p),h=a.allConstraints(p),b=y.wireframes?y.wireframeBackground:y.background,S=[],w=[],A={timestamp:d.timing.timestamp};if(l.trigger(e,"beforeRender",A),e.currentBackground!==b&&m(e,b),v.globalCompositeOperation="source-in",v.fillStyle="transparent",v.fillRect(0,0,f.width,f.height),v.globalCompositeOperation="source-over",y.hasBounds){for(n=0;n<x.length;n++){var P=x[n];s.overlaps(P.bounds,e.bounds)&&S.push(P)}for(n=0;n<h.length;n++){var B=h[n],M=B.bodyA,_=B.bodyB,C=B.pointA,k=B.pointB;M&&(C=c.add(M.position,B.pointA)),_&&(k=c.add(_.position,B.pointB)),C&&k&&((s.contains(e.bounds,C)||s.contains(e.bounds,k))&&w.push(B))}o.startViewTransform(e),e.mouse&&(u.setScale(e.mouse,{x:(e.bounds.max.x-e.bounds.min.x)/e.options.width,y:(e.bounds.max.y-e.bounds.min.y)/e.options.height}),u.setOffset(e.mouse,e.bounds.min))}else w=h,S=x,1!==e.options.pixelRatio&&e.context.setTransform(e.options.pixelRatio,0,0,e.options.pixelRatio,0,0);!y.wireframes||d.enableSleeping&&y.showSleeping?o.bodies(e,S,v):(y.showConvexHulls&&o.bodyConvexHulls(e,S,v),o.bodyWireframes(e,S,v)),y.showBounds&&o.bodyBounds(e,S,v),(y.showAxes||y.showAngleIndicator)&&o.bodyAxes(e,S,v),y.showPositions&&o.bodyPositions(e,S,v),y.showVelocity&&o.bodyVelocity(e,S,v),y.showIds&&o.bodyIds(e,S,v),y.showSeparations&&o.separations(e,d.pairs.list,v),y.showCollisions&&o.collisions(e,d.pairs.list,v),y.showVertexNumbers&&o.vertexNumbers(e,S,v),y.showMousePosition&&o.mousePosition(e,e.mouse,v),o.constraints(w,v),y.hasBounds&&o.endViewTransform(e),l.trigger(e,"afterRender",A),g.lastElapsed=r.now()-i},o.stats=function(e,t,n){for(var o=e.engine,i=o.world,r=a.allBodies(i),s=0,l=0,c=0;c<r.length;c+=1)s+=r[c].parts.length;var u={Part:s,Body:r.length,Cons:a.allConstraints(i).length,Comp:a.allComposites(i).length,Pair:o.pairs.list.length};for(var d in t.fillStyle="#0e0f19",t.fillRect(l,0,302.5,44),t.font="12px Arial",t.textBaseline="top",t.textAlign="right",u){var p=u[d];t.fillStyle="#aaa",t.fillText(d,l+55,8),t.fillStyle="#eee",t.fillText(p,l+55,26),l+=55}},o.performance=function(e,t){var n=e.engine,i=e.timing,a=i.deltaHistory,s=i.elapsedHistory,l=i.timestampElapsedHistory,c=i.engineDeltaHistory,u=i.engineUpdatesHistory,p=i.engineElapsedHistory,f=n.timing.lastUpdatesPerFrame,v=n.timing.lastDelta,m=d(a),y=d(s),g=d(c),x=d(u),h=d(p),b=d(l)/m||0,S=Math.round(m/v),w=1e3/m||0,A=10,P=69;t.fillStyle="#0e0f19",t.fillRect(0,50,442,34),o.status(t,A,P,60,4,a.length,Math.round(w)+" fps",w/o._goodFps,(function(e){return a[e]/m-1})),o.status(t,82,P,60,4,c.length,v.toFixed(2)+" dt",o._goodDelta/v,(function(e){return c[e]/g-1})),o.status(t,154,P,60,4,u.length,f+" upf",Math.pow(r.clamp(x/S||1,0,1),4),(function(e){return u[e]/x-1})),o.status(t,226,P,60,4,p.length,h.toFixed(2)+" ut",1-f*h/o._goodFps,(function(e){return p[e]/h-1})),o.status(t,298,P,60,4,s.length,y.toFixed(2)+" rt",1-y/o._goodFps,(function(e){return s[e]/y-1})),o.status(t,370,P,60,4,l.length,b.toFixed(2)+" x",b*b*b,(function(e){return(l[e]/a[e]/b||0)-1}))},o.status=function(e,t,n,o,i,a,s,l,c){e.strokeStyle="#888",e.fillStyle="#444",e.lineWidth=1,e.fillRect(t,n+7,o,1),e.beginPath(),e.moveTo(t,n+7-i*r.clamp(.4*c(0),-2,2));for(var u=0;u<o;u+=1)e.lineTo(t+u,n+7-(u<a?i*r.clamp(.4*c(u),-2,2):0));e.stroke(),e.fillStyle="hsl("+r.clamp(25+95*l,0,120)+",100%,60%)",e.fillRect(t,n-7,4,4),e.font="12px Arial",e.textBaseline="middle",e.textAlign="right",e.fillStyle="#eee",e.fillText(s,t+o,n-5)},o.constraints=function(e,t){for(var n=t,o=0;o<e.length;o++){var i=e[o];if(i.render.visible&&i.pointA&&i.pointB){var a,s,l=i.bodyA,u=i.bodyB;if(a=l?c.add(l.position,i.pointA):i.pointA,"pin"===i.render.type)n.beginPath(),n.arc(a.x,a.y,3,0,2*Math.PI),n.closePath();else{if(s=u?c.add(u.position,i.pointB):i.pointB,n.beginPath(),n.moveTo(a.x,a.y),"spring"===i.render.type)for(var d,p=c.sub(s,a),f=c.perp(c.normalise(p)),v=Math.ceil(r.clamp(i.length/5,12,20)),m=1;m<v;m+=1)d=m%2==0?1:-1,n.lineTo(a.x+p.x*(m/v)+f.x*d*4,a.y+p.y*(m/v)+f.y*d*4);n.lineTo(s.x,s.y)}i.render.lineWidth&&(n.lineWidth=i.render.lineWidth,n.strokeStyle=i.render.strokeStyle,n.stroke()),i.render.anchors&&(n.fillStyle=i.render.strokeStyle,n.beginPath(),n.arc(a.x,a.y,3,0,2*Math.PI),n.arc(s.x,s.y,3,0,2*Math.PI),n.closePath(),n.fill())}}},o.bodies=function(e,t,n){var o,i,r,a,s=n,l=(e.engine,e.options),c=l.showInternalEdges||!l.wireframes;for(r=0;r<t.length;r++)if((o=t[r]).render.visible)for(a=o.parts.length>1?1:0;a<o.parts.length;a++)if((i=o.parts[a]).render.visible){if(l.showSleeping&&o.isSleeping?s.globalAlpha=.5*i.render.opacity:1!==i.render.opacity&&(s.globalAlpha=i.render.opacity),i.render.sprite&&i.render.sprite.texture&&!l.wireframes){var u=i.render.sprite,d=v(e,u.texture);s.translate(i.position.x,i.position.y),s.rotate(i.angle),s.drawImage(d,d.width*-u.xOffset*u.xScale,d.height*-u.yOffset*u.yScale,d.width*u.xScale,d.height*u.yScale),s.rotate(-i.angle),s.translate(-i.position.x,-i.position.y)}else{if(i.circleRadius)s.beginPath(),s.arc(i.position.x,i.position.y,i.circleRadius,0,2*Math.PI);else{s.beginPath(),s.moveTo(i.vertices[0].x,i.vertices[0].y);for(var p=1;p<i.vertices.length;p++)!i.vertices[p-1].isInternal||c?s.lineTo(i.vertices[p].x,i.vertices[p].y):s.moveTo(i.vertices[p].x,i.vertices[p].y),i.vertices[p].isInternal&&!c&&s.moveTo(i.vertices[(p+1)%i.vertices.length].x,i.vertices[(p+1)%i.vertices.length].y);s.lineTo(i.vertices[0].x,i.vertices[0].y),s.closePath()}l.wireframes?(s.lineWidth=1,s.strokeStyle=e.options.wireframeStrokeStyle,s.stroke()):(s.fillStyle=i.render.fillStyle,i.render.lineWidth&&(s.lineWidth=i.render.lineWidth,s.strokeStyle=i.render.strokeStyle,s.stroke()),s.fill())}s.globalAlpha=1}},o.bodyWireframes=function(e,t,n){var o,i,r,a,s,l=n,c=e.options.showInternalEdges;for(l.beginPath(),r=0;r<t.length;r++)if((o=t[r]).render.visible)for(s=o.parts.length>1?1:0;s<o.parts.length;s++){for(i=o.parts[s],l.moveTo(i.vertices[0].x,i.vertices[0].y),a=1;a<i.vertices.length;a++)!i.vertices[a-1].isInternal||c?l.lineTo(i.vertices[a].x,i.vertices[a].y):l.moveTo(i.vertices[a].x,i.vertices[a].y),i.vertices[a].isInternal&&!c&&l.moveTo(i.vertices[(a+1)%i.vertices.length].x,i.vertices[(a+1)%i.vertices.length].y);l.lineTo(i.vertices[0].x,i.vertices[0].y)}l.lineWidth=1,l.strokeStyle=e.options.wireframeStrokeStyle,l.stroke()},o.bodyConvexHulls=function(e,t,n){var o,i,r,a=n;for(a.beginPath(),i=0;i<t.length;i++)if((o=t[i]).render.visible&&1!==o.parts.length){for(a.moveTo(o.vertices[0].x,o.vertices[0].y),r=1;r<o.vertices.length;r++)a.lineTo(o.vertices[r].x,o.vertices[r].y);a.lineTo(o.vertices[0].x,o.vertices[0].y)}a.lineWidth=1,a.strokeStyle="rgba(255,255,255,0.2)",a.stroke()},o.vertexNumbers=function(e,t,n){var 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n=e.engine,i=e.timing,r=i.historySize,a=n.timing.timestamp;i.delta=t-i.lastTime||o._goodDelta,i.lastTime=t,i.timestampElapsed=a-i.lastTimestamp||0,i.lastTimestamp=a,i.deltaHistory.unshift(i.delta),i.deltaHistory.length=Math.min(i.deltaHistory.length,r),i.engineDeltaHistory.unshift(n.timing.lastDelta),i.engineDeltaHistory.length=Math.min(i.engineDeltaHistory.length,r),i.timestampElapsedHistory.unshift(i.timestampElapsed),i.timestampElapsedHistory.length=Math.min(i.timestampElapsedHistory.length,r),i.engineUpdatesHistory.unshift(n.timing.lastUpdatesPerFrame),i.engineUpdatesHistory.length=Math.min(i.engineUpdatesHistory.length,r),i.engineElapsedHistory.unshift(n.timing.lastElapsed),i.engineElapsedHistory.length=Math.min(i.engineElapsedHistory.length,r),i.elapsedHistory.unshift(i.lastElapsed),i.elapsedHistory.length=Math.min(i.elapsedHistory.length,r)},d=function(e){for(var t=0,n=0;n<e.length;n+=1)t+=e[n];return t/e.length||0},p=function(e,t){var n=document.createElement("canvas");return 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t=a.extend({delta:1e3/60,frameDelta:null,frameDeltaSmoothing:!0,frameDeltaSnapping:!0,frameDeltaHistory:[],frameDeltaHistorySize:100,frameRequestId:null,timeBuffer:0,timeLastTick:null,maxUpdates:null,maxFrameTime:1e3/30,lastUpdatesDeferred:0,enabled:!0},e);return t.fps=0,t},o.run=function(e,t){return e.timeBuffer=o._frameDeltaFallback,function n(i){e.frameRequestId=o._onNextFrame(e,n),i&&e.enabled&&o.tick(e,t,i)}(),e},o.tick=function(t,n,s){var l=a.now(),c=t.delta,u=0,d=s-t.timeLastTick;if((!d||!t.timeLastTick||d>Math.max(o._maxFrameDelta,t.maxFrameTime))&&(d=t.frameDelta||o._frameDeltaFallback),t.frameDeltaSmoothing){t.frameDeltaHistory.push(d),t.frameDeltaHistory=t.frameDeltaHistory.slice(-t.frameDeltaHistorySize);var 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t=0,n=e.length,o=0;o<n;o+=1)t+=e[o];return t/n||0}}()},function(e,t,n){var o={};e.exports=o;var i=n(8),r=n(0).deprecated;o.collides=function(e,t){return i.collides(e,t)},r(o,"collides","SAT.collides ➤ replaced by Collision.collides")},function(e,t,n){var o={};e.exports=o;n(1);var i=n(0);o.pathToVertices=function(e,t){"undefined"==typeof window||"SVGPathSeg"in window||i.warn("Svg.pathToVertices: SVGPathSeg not defined, a polyfill is required.");var n,r,a,s,l,c,u,d,p,f,v,m=[],y=0,g=0,x=0;t=t||15;var h=function(e,t,n){var o=n%2==1&&n>1;if(!p||e!=p.x||t!=p.y){p&&o?(f=p.x,v=p.y):(f=0,v=0);var i={x:f+e,y:v+t};!o&&p||(p=i),m.push(i),g=f+e,x=v+t}},b=function(e){var t=e.pathSegTypeAsLetter.toUpperCase();if("Z"!==t){switch(t){case"M":case"L":case"T":case"C":case"S":case"Q":g=e.x,x=e.y;break;case"H":g=e.x;break;case"V":x=e.y}h(g,x,e.pathSegType)}};for(o._svgPathToAbsolute(e),a=e.getTotalLength(),c=[],n=0;n<e.pathSegList.numberOfItems;n+=1)c.push(e.pathSegList.getItem(n));for(u=c.concat();y<a;){if((l=c[e.getPathSegAtLength(y)])!=d){for(;u.length&&u[0]!=l;)b(u.shift());d=l}switch(l.pathSegTypeAsLetter.toUpperCase()){case"C":case"T":case"S":case"Q":case"A":s=e.getPointAtLength(y),h(s.x,s.y,0)}y+=t}for(n=0,r=u.length;n<r;++n)b(u[n]);return m},o._svgPathToAbsolute=function(e){for(var t,n,o,i,r,a,s=e.pathSegList,l=0,c=0,u=s.numberOfItems,d=0;d<u;++d){var p=s.getItem(d),f=p.pathSegTypeAsLetter;if(/[MLHVCSQTA]/.test(f))"x"in p&&(l=p.x),"y"in p&&(c=p.y);else switch("x1"in p&&(o=l+p.x1),"x2"in p&&(r=l+p.x2),"y1"in p&&(i=c+p.y1),"y2"in p&&(a=c+p.y2),"x"in p&&(l+=p.x),"y"in 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