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liabru-matter-js/build/matter.min.js
2015-01-21 00:15:04 +00:00

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58 KiB
JavaScript

/**
* matter.min.js 0.8.0-edge 2015-01-21
* http://brm.io/matter-js/
* License: MIT
*/
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e=o.indexOf(a.constraints,b);if(-1!==e&&c.removeConstraintAt(a,e),d)for(var f=0;f<a.composites.length;f++)c.removeConstraint(a.composites[f],b,!0);return a},c.removeConstraintAt=function(a,b){return a.constraints.splice(b,1),c.setModified(a,!0,!0,!1),a},c.clear=function(a,b,d){if(d)for(var e=0;e<a.composites.length;e++)c.clear(a.composites[e],b,!0);return b?a.bodies=a.bodies.filter(function(a){return a.isStatic}):a.bodies.length=0,a.constraints.length=0,a.composites.length=0,c.setModified(a,!0,!0,!1),a},c.allBodies=function(a){for(var b=[].concat(a.bodies),d=0;d<a.composites.length;d++)b=b.concat(c.allBodies(a.composites[d]));return b},c.allConstraints=function(a){for(var b=[].concat(a.constraints),d=0;d<a.composites.length;d++)b=b.concat(c.allConstraints(a.composites[d]));return b},c.allComposites=function(a){for(var b=[].concat(a.composites),d=0;d<a.composites.length;d++)b=b.concat(c.allComposites(a.composites[d]));return b},c.get=function(a,b,d){var e,f;switch(d){case"body":e=c.allBodies(a);break;case"constraint":e=c.allConstraints(a);break;case"composite":e=c.allComposites(a).concat(a)}return e?(f=e.filter(function(a){return a.id.toString()===b.toString()}),0===f.length?null:f[0]):null},c.move=function(a,b,d){return c.remove(a,b),c.add(d,b),a},c.rebase=function(a){for(var b=c.allBodies(a).concat(c.allConstraints(a)).concat(c.allComposites(a)),d=0;d<b.length;d++)b[d].id=o.nextId();return c.setModified(a,!0,!0,!1),a},c.translate=function(a,d,e){for(var f=e?c.allBodies(a):a.bodies,g=0;g<f.length;g++)b.translate(f[g],d);return c.setModified(a,!0,!0,!1),a},c.rotate=function(a,d,e,f){for(var g=Math.cos(d),h=Math.sin(d),i=f?c.allBodies(a):a.bodies,j=0;j<i.length;j++){var k=i[j],l=k.position.x-e.x,m=k.position.y-e.y;b.setPosition(k,{x:e.x+(l*g-m*h),y:e.y+(l*h+m*g)}),b.rotate(k,d)}return c.setModified(a,!0,!0,!1),a},c.scale=function(a,d,e,f,g){for(var h=g?c.allBodies(a):a.bodies,i=0;i<h.length;i++){var 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c=[],d=b.metrics,e=b.pairs.table,g=0;g<a.length;g++)for(var i=g+1;i<a.length;i++){var j=a[g],k=a[i];if((!j.isStatic&&!j.isSleeping||!k.isStatic&&!k.isSleeping)&&f.canCollide(j.collisionFilter,k.collisionFilter)&&(d.midphaseTests+=1,y.overlaps(j.bounds,k.bounds))){var m,n=h.id(j,k),o=e[n];m=o&&o.isActive?o.collision:null;var p=l.collides(j,k,m);d.narrowphaseTests+=1,p.reused&&(d.narrowReuseCount+=1),p.collided&&(c.push(p),d.narrowDetections+=1)}}return c},f.canCollide=function(a,b){return a.group===b.group&&0!==a.group?a.group>0:0!==(a.mask&b.category)&&0!==(b.mask&a.category)}}();var g={};!function(){g.create=function(a){var b={controller:g,detector:f.collisions,buckets:{},pairs:{},pairsList:[],bucketWidth:48,bucketHeight:48};return o.extend(b,a)},g.update=function(c,f,g,h){var l,m,n,o,p,q=g.world,r=c.buckets,s=g.metrics,t=!1;for(s.broadphaseTests=0,l=0;l<f.length;l++){var 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d=b.bounds,e=Math.floor(d.min.x/a.bucketWidth),f=Math.floor(d.max.x/a.bucketWidth),g=Math.floor(d.min.y/a.bucketHeight),h=Math.floor(d.max.y/a.bucketHeight);return c(e,f,g,h)},c=function(a,b,c,d){return{id:a+","+b+","+c+","+d,startCol:a,endCol:b,startRow:c,endRow:d}},d=function(a,b){return a+","+b},e=function(a,b){var c=a[b]=[];return c},i=function(a,b,c){for(var d=0;d<b.length;d++){var e=b[d];if(!(c.id===e.id||c.isStatic&&e.isStatic)){var f=h.id(c,e),g=a.pairs[f];g?g[2]+=1:a.pairs[f]=[c,e,1]}}b.push(c)},j=function(a,b,c){b.splice(o.indexOf(b,c),1);for(var d=0;d<b.length;d++){var e=b[d],f=h.id(c,e),g=a.pairs[f];g&&(g[2]-=1)}},k=function(a){var b,c,d=[];b=o.keys(a.pairs);for(var e=0;e<b.length;e++)c=a.pairs[b[e]],c[2]>0?d.push(c):delete a.pairs[b[e]];return d}}();var h={};!function(){h.create=function(a,b){var c=a.bodyA,d=a.bodyB,e={id:h.id(c,d),bodyA:c,bodyB:d,contacts:{},activeContacts:[],separation:0,isActive:!0,timeCreated:b,timeUpdated:b,inverseMass:c.inverseMass+d.inverseMass,friction:Math.min(c.friction,d.friction),restitution:Math.max(c.restitution,d.restitution),slop:Math.max(c.slop,d.slop)};return h.update(e,a,b),e},h.update=function(a,b,c){var d=a.contacts,f=b.supports,g=a.activeContacts;if(a.collision=b,a.inverseMass=b.bodyA.inverseMass+b.bodyB.inverseMass,a.friction=Math.min(b.bodyA.friction,b.bodyB.friction),a.restitution=Math.max(b.bodyA.restitution,b.bodyB.restitution),a.slop=Math.max(b.bodyA.slop,b.bodyB.slop),g.length=0,b.collided){for(var i=0;i<f.length;i++){var j=f[i],k=e.id(j),l=d[k];g.push(l?l:d[k]=e.create(j))}a.separation=b.depth,h.setActive(a,!0,c)}else a.isActive===!0&&h.setActive(a,!1,c)},h.setActive=function(a,b,c){b?(a.isActive=!0,a.timeUpdated=c):(a.isActive=!1,a.activeContacts.length=0)},h.id=function(a,b){return a.id<b.id?a.id+"_"+b.id:b.id+"_"+a.id}}();var i={};!function(){var a=1e3;i.create=function(a){return o.extend({table:{},list:[],collisionStart:[],collisionActive:[],collisionEnd:[]},a)},i.update=function(a,b,c){var d,e,f,g,i=a.list,j=a.table,k=a.collisionStart,l=a.collisionEnd,m=a.collisionActive,n=[];for(k.length=0,l.length=0,m.length=0,g=0;g<b.length;g++)d=b[g],d.collided&&(e=h.id(d.bodyA,d.bodyB),n.push(e),f=j[e],f?(f.isActive?m.push(f):k.push(f),h.update(f,d,c)):(f=h.create(d,c),j[e]=f,k.push(f),i.push(f)));for(g=0;g<i.length;g++)f=i[g],f.isActive&&-1===o.indexOf(n,f.id)&&(h.setActive(f,!1,c),l.push(f))},i.removeOld=function(b,c){var d,e,f,g,h=b.list,i=b.table,j=[];for(g=0;g<h.length;g++)d=h[g],e=d.collision,e.bodyA.isSleeping||e.bodyB.isSleeping?d.timeUpdated=c:c-d.timeUpdated>a&&j.push(g);for(g=0;g<j.length;g++)f=j[g]-g,d=h[f],delete i[d.id],h.splice(f,1)},i.clear=function(a){return a.table={},a.list.length=0,a.collisionStart.length=0,a.collisionActive.length=0,a.collisionEnd.length=0,a}}();var j={};!function(){j.ray=function(a,b,c,d){d=d||Number.MIN_VALUE;for(var e=z.angle(b,c),f=z.magnitude(z.sub(b,c)),g=.5*(c.x+b.x),h=.5*(c.y+b.y),i=v.rectangle(g,h,f,d,{angle:e}),j=[],k=0;k<a.length;k++){var m=a[k];if(y.overlaps(m.bounds,i.bounds)){var n=l.collides(m,i);n.collided&&(n.body=n.bodyA=n.bodyB=m,j.push(n))}}return j},j.region=function(a,b,c){for(var d=[],e=0;e<a.length;e++){var f=a[e],g=y.overlaps(f.bounds,b);(g&&!c||!g&&c)&&d.push(f)}return d}}();var k={};!function(){var a=4,b=.2,c=.6;k.solvePosition=function(a,c){var d,e,f,g,h,i,j,k,l;for(d=0;d<a.length;d++)e=a[d],e.isActive&&(f=e.collision,g=f.bodyA,h=f.bodyB,i=f.supports[0],j=f.supportCorrected,k=f.normal,l=z.sub(z.add(h.positionImpulse,i),z.add(g.positionImpulse,j)),e.separation=z.dot(k,l));for(d=0;d<a.length;d++)e=a[d],e.isActive&&(f=e.collision,g=f.bodyA,h=f.bodyB,k=f.normal,positionImpulse=(e.separation*b-e.slop)*c,(g.isStatic||h.isStatic)&&(positionImpulse*=2),g.isStatic||g.isSleeping||(g.positionImpulse.x+=k.x*positionImpulse,g.positionImpulse.y+=k.y*positionImpulse),h.isStatic||h.isSleeping||(h.positionImpulse.x-=k.x*positionImpulse,h.positionImpulse.y-=k.y*positionImpulse))},k.postSolvePosition=function(a){for(var b=0;b<a.length;b++){var d=a[b];(0!==d.positionImpulse.x||0!==d.positionImpulse.y)&&(d.position.x+=d.positionImpulse.x,d.position.y+=d.positionImpulse.y,d.positionPrev.x+=d.positionImpulse.x,d.positionPrev.y+=d.positionImpulse.y,A.translate(d.vertices,d.positionImpulse),y.update(d.bounds,d.vertices,d.velocity),d.positionImpulse.x*=c,d.positionImpulse.y*=c)}},k.preSolveVelocity=function(a){var b,c,d,e,f,g,h,i,j,k,l,m,n,o,p={};for(b=0;b<a.length;b++)if(d=a[b],d.isActive)for(e=d.activeContacts,f=d.collision,g=f.bodyA,h=f.bodyB,i=f.normal,j=f.tangent,c=0;c<e.length;c++)k=e[c],l=k.vertex,m=k.normalImpulse,n=k.tangentImpulse,p.x=i.x*m+j.x*n,p.y=i.y*m+j.y*n,g.isStatic||g.isSleeping||(o=z.sub(l,g.position),g.positionPrev.x+=p.x*g.inverseMass,g.positionPrev.y+=p.y*g.inverseMass,g.anglePrev+=z.cross(o,p)*g.inverseInertia),h.isStatic||h.isSleeping||(o=z.sub(l,h.position),h.positionPrev.x-=p.x*h.inverseMass,h.positionPrev.y-=p.y*h.inverseMass,h.anglePrev-=z.cross(o,p)*h.inverseInertia)},k.solveVelocity=function(b,c){for(var d={},e=c*c,f=0;f<b.length;f++){var g=b[f];if(g.isActive){var h=g.collision,i=h.bodyA,j=h.bodyB,k=h.normal,l=h.tangent,m=g.activeContacts,n=1/m.length;i.velocity.x=i.position.x-i.positionPrev.x,i.velocity.y=i.position.y-i.positionPrev.y,j.velocity.x=j.position.x-j.positionPrev.x,j.velocity.y=j.position.y-j.positionPrev.y,i.angularVelocity=i.angle-i.anglePrev,j.angularVelocity=j.angle-j.anglePrev;for(var p=0;p<m.length;p++){var q=m[p],r=q.vertex,s=z.sub(r,i.position),t=z.sub(r,j.position),u=z.add(i.velocity,z.mult(z.perp(s),i.angularVelocity)),v=z.add(j.velocity,z.mult(z.perp(t),j.angularVelocity)),w=z.sub(u,v),x=z.dot(k,w),y=z.dot(l,w),A=Math.abs(y),B=o.sign(y),C=(1+g.restitution)*x,D=o.clamp(g.separation+x,0,1),E=y;A>D*g.friction*e&&(E=D*g.friction*e*B);var F=z.cross(s,k),G=z.cross(t,k),H=n/(g.inverseMass+i.inverseInertia*F*F+j.inverseInertia*G*G);if(C*=H,E*=H,0>x&&x*x>a*e)q.normalImpulse=0,q.tangentImpulse=0;else{var I=q.normalImpulse;q.normalImpulse=Math.min(q.normalImpulse+C,0),C=q.normalImpulse-I;var 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i.collided=!1,i;f.overlap<g.overlap?(h=f,i.bodyA=b,i.bodyB=d):(h=g,i.bodyA=d,i.bodyB=b),i.axisNumber=h.axisNumber}i.collided=!0,i.normal=h.axis,i.depth=h.overlap,b=i.bodyA,d=i.bodyB,z.dot(i.normal,z.sub(d.position,b.position))>0&&(i.normal=z.neg(i.normal)),i.tangent=z.perp(i.normal),i.penetration={x:i.normal.x*i.depth,y:i.normal.y*i.depth};var n=c(b,d,i.normal),o=i.supports||[];if(o.length=0,A.contains(b.vertices,n[0])&&o.push(n[0]),A.contains(b.vertices,n[1])&&o.push(n[1]),o.length<2){var p=c(d,b,z.neg(i.normal));A.contains(d.vertices,p[0])&&o.push(p[0]),o.length<2&&A.contains(d.vertices,p[1])&&o.push(p[1])}return o.length<2&&(o=[n[0]]),i.supports=o,i.supportCorrected=z.sub(o[0],i.penetration),i};var a=function(a,c,d){for(var e,f,g={},h={},i={overlap:Number.MAX_VALUE},j=0;j<d.length;j++){if(f=d[j],b(g,a,f),b(h,c,f),e=g.min<h.min?g.max-h.min:h.max-g.min,0>=e)return i.overlap=e,i;e<i.overlap&&(i.overlap=e,i.axis=f,i.axisNumber=j)}return i},b=function(a,b,c){for(var d=z.dot(b[0],c),e=d,f=1;f<b.length;f+=1){var g=z.dot(b[f],c);g>e?e=g:d>g&&(d=g)}a.min=d,a.max=e},c=function(a,b,c){for(var d,e,f=Number.MAX_VALUE,g={x:0,y:0},h=b.vertices,i=a.position,j=h[0],k=h[1],l=0;l<h.length;l++)e=h[l],g.x=e.x-i.x,g.y=e.y-i.y,d=-z.dot(c,g),f>d&&(f=d,j=e);var m=j.index-1>=0?j.index-1:h.length-1;e=h[m],g.x=e.x-i.x,g.y=e.y-i.y,f=-z.dot(c,g),k=e;var n=(j.index+1)%h.length;return e=h[n],g.x=e.x-i.x,g.y=e.y-i.y,d=-z.dot(c,g),f>d&&(k=e),[j,k]}}();var m={};!function(){var a=1e-6,b=.001;m.create=function(b){var c=b;c.bodyA&&!c.pointA&&(c.pointA={x:0,y:0}),c.bodyB&&!c.pointB&&(c.pointB={x:0,y:0});var d=c.bodyA?z.add(c.bodyA.position,c.pointA):c.pointA,e=c.bodyB?z.add(c.bodyB.position,c.pointB):c.pointB,f=z.magnitude(z.sub(d,e));c.length=c.length||f||a;var g={visible:!0,lineWidth:2,strokeStyle:"#666"};return c.render=o.extend(g,c.render),c.id=c.id||o.nextId(),c.label=c.label||"Constraint",c.type="constraint",c.stiffness=c.stiffness||1,c.angularStiffness=c.angularStiffness||0,c.angleA=c.bodyA?c.bodyA.angle:c.angleA,c.angleB=c.bodyB?c.bodyB.angle:c.angleB,c},m.solveAll=function(a,b){for(var c=0;c<a.length;c++)m.solve(a[c],b)},m.solve=function(c,d){var e=c.bodyA,f=c.bodyB,g=c.pointA,h=c.pointB;e&&!e.isStatic&&(c.pointA=z.rotate(g,e.angle-c.angleA),c.angleA=e.angle),f&&!f.isStatic&&(c.pointB=z.rotate(h,f.angle-c.angleB),c.angleB=f.angle);var i=g,j=h;if(e&&(i=z.add(e.position,g)),f&&(j=z.add(f.position,h)),i&&j){var k=z.sub(i,j),l=z.magnitude(k);0===l&&(l=a);var m=(l-c.length)/l,n=z.div(k,l),p=z.mult(k,.5*m*c.stiffness*d*d);if(!(Math.abs(1-l/c.length)<b*d)){var q,r,s,t,v,w,x,y;e&&!e.isStatic?(s={x:i.x-e.position.x+p.x,y:i.y-e.position.y+p.y},e.velocity.x=e.position.x-e.positionPrev.x,e.velocity.y=e.position.y-e.positionPrev.y,e.angularVelocity=e.angle-e.anglePrev,q=z.add(e.velocity,z.mult(z.perp(s),e.angularVelocity)),v=z.dot(s,n),x=e.inverseMass+e.inverseInertia*v*v):(q={x:0,y:0},x=e?e.inverseMass:0),f&&!f.isStatic?(t={x:j.x-f.position.x-p.x,y:j.y-f.position.y-p.y},f.velocity.x=f.position.x-f.positionPrev.x,f.velocity.y=f.position.y-f.positionPrev.y,f.angularVelocity=f.angle-f.anglePrev,r=z.add(f.velocity,z.mult(z.perp(t),f.angularVelocity)),w=z.dot(t,n),y=f.inverseMass+f.inverseInertia*w*w):(r={x:0,y:0},y=f?f.inverseMass:0);var A=z.sub(r,q),B=z.dot(n,A)/(x+y);B>0&&(B=0);var C,D={x:n.x*B,y:n.y*B};e&&!e.isStatic&&(C=z.cross(s,D)*e.inverseInertia*(1-c.angularStiffness),u.set(e,!1),C=o.clamp(C,-.01,.01),e.constraintImpulse.x-=p.x,e.constraintImpulse.y-=p.y,e.constraintImpulse.angle+=C,e.position.x-=p.x,e.position.y-=p.y,e.angle+=C),f&&!f.isStatic&&(C=z.cross(t,D)*f.inverseInertia*(1-c.angularStiffness),u.set(f,!1),C=o.clamp(C,-.01,.01),f.constraintImpulse.x+=p.x,f.constraintImpulse.y+=p.y,f.constraintImpulse.angle-=C,f.position.x+=p.x,f.position.y+=p.y,f.angle-=C)}}},m.postSolveAll=function(a){for(var b=0;b<a.length;b++){var c=a[b],d=c.constraintImpulse;A.translate(c.vertices,d),0!==d.angle&&(A.rotate(c.vertices,d.angle,c.position),x.rotate(c.axes,d.angle),d.angle=0),y.update(c.bounds,c.vertices),d.x=0,d.y=0}}}();var n={};!function(){n.create=function(b,d){var e=(b?b.mouse:null)||(d?d.mouse:null);!e&&b&&b.render&&b.render.canvas?e=s.create(b.render.canvas):(e=s.create(),o.log("MouseConstraint.create: options.mouse was undefined, engine.render.canvas was 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b=a.mouse,c=b.sourceEvents;c.mousemove&&q.trigger(a,"mousemove",{mouse:b}),c.mousedown&&q.trigger(a,"mousedown",{mouse:b}),c.mouseup&&q.trigger(a,"mouseup",{mouse:b}),s.clearSourceEvents(b)}}();var o={};!function(){o._nextId=0,o._seed=0,o.extend=function(a,b){var c,d,e;"boolean"==typeof b?(c=2,e=b):(c=1,e=!0),d=Array.prototype.slice.call(arguments,c);for(var f=0;f<d.length;f++){var g=d[f];if(g)for(var h in g)e&&g[h]&&g[h].constructor===Object?a[h]&&a[h].constructor!==Object?a[h]=g[h]:(a[h]=a[h]||{},o.extend(a[h],e,g[h])):a[h]=g[h]}return a},o.clone=function(a,b){return o.extend({},b,a)},o.keys=function(a){if(Object.keys)return Object.keys(a);var b=[];for(var c in a)b.push(c);return b},o.values=function(a){var b=[];if(Object.keys){for(var c=Object.keys(a),d=0;d<c.length;d++)b.push(a[c[d]]);return b}for(var e in a)b.push(a[e]);return b},o.shadeColor=function(a,b){var c=parseInt(a.slice(1),16),d=Math.round(2.55*b),e=(c>>16)+d,f=(c>>8&255)+d,g=(255&c)+d;return"#"+(16777216+65536*(255>e?1>e?0:e:255)+256*(255>f?1>f?0:f:255)+(255>g?1>g?0:g:255)).toString(16).slice(1)},o.shuffle=function(a){for(var b=a.length-1;b>0;b--){var c=Math.floor(o.random()*(b+1)),d=a[b];a[b]=a[c],a[c]=d}return a},o.choose=function(a){return a[Math.floor(o.random()*a.length)]},o.isElement=function(a){try{return a instanceof HTMLElement}catch(b){return"object"==typeof a&&1===a.nodeType&&"object"==typeof a.style&&"object"==typeof a.ownerDocument}},o.clamp=function(a,b,c){return b>a?b:a>c?c:a},o.sign=function(a){return 0>a?-1:1},o.now=function(){var a=window.performance;return a?(a.now=a.now||a.webkitNow||a.msNow||a.oNow||a.mozNow,+a.now()):+new Date},o.random=function(b,c){return b="undefined"!=typeof b?b:0,c="undefined"!=typeof c?c:1,b+a()*(c-b)},o.colorToNumber=function(a){return a=a.replace("#",""),3==a.length&&(a=a.charAt(0)+a.charAt(0)+a.charAt(1)+a.charAt(1)+a.charAt(2)+a.charAt(2)),parseInt(a,16)},o.log=function(a,b){if(console&&console.log&&console.warn){switch(b){case"warn":console.warn("Matter.js:",a);break;case"error":console.log("Matter.js:",a)}}},o.nextId=function(){return o._nextId++},o.indexOf=function(a,b){if(a.indexOf)return a.indexOf(b);for(var c=0;c<a.length;c++)if(a[c]===b)return c;return-1};var a=function(){return o._seed=(9301*o._seed+49297)%233280,o._seed/233280}}();var p={};!function(){var a=60,e=1e3/a;p.create=function(b,c){c=o.isElement(b)?c:b,b=o.isElement(b)?b:null;var f={enabled:!0,positionIterations:6,velocityIterations:4,constraintIterations:2,enableSleeping:!1,events:[],timing:{fps:a,timestamp:0,delta:e,correction:1,deltaMin:1e3/a,deltaMax:1e3/(.5*a),timeScale:1,isFixed:!1,frameRequestId:0},render:{element:b,controller:B},broadphase:{controller:g}},h=o.extend(f,c);return h.render=h.render.controller.create(h.render),h.world=d.create(h.world),h.pairs=i.create(),h.metrics=h.metrics||r.create(),h.broadphase=h.broadphase.controller.create(h.broadphase),h},p.update=function(a,b,d){d="undefined"!=typeof d?d:1;var e,g=a.world,l=a.timing,n=a.broadphase,o=[];l.timestamp+=b*l.timeScale,l.correction=d;var p={timestamp:a.timing.timestamp};q.trigger(a,"beforeUpdate",p);var s=c.allBodies(g),t=c.allConstraints(g);for(r.reset(a.metrics),a.enableSleeping&&u.update(s,l.timeScale),h(s,g.gravity),j(s,b,l.timeScale,d,g.bounds),e=0;e<a.constraintIterations;e++)m.solveAll(t,l.timeScale);m.postSolveAll(s),n.controller?(g.isModified&&n.controller.clear(n),n.controller.update(n,s,a,g.isModified),o=n.pairsList):o=s;var v=n.detector(o,a),w=a.pairs,x=l.timestamp;for(i.update(w,v,x),i.removeOld(w,x),a.enableSleeping&&u.afterCollisions(w.list,l.timeScale),w.collisionStart.length>0&&q.trigger(a,"collisionStart",{pairs:w.collisionStart}),k.preSolveVelocity(w.list),e=0;e<a.velocityIterations;e++)k.solveVelocity(w.list,l.timeScale);for(e=0;e<a.positionIterations;e++)k.solvePosition(w.list,l.timeScale);return k.postSolvePosition(s),w.collisionActive.length>0&&q.trigger(a,"collisionActive",{pairs:w.collisionActive}),w.collisionEnd.length>0&&q.trigger(a,"collisionEnd",{pairs:w.collisionEnd}),r.update(a.metrics,a),f(s),g.isModified&&c.setModified(g,!1,!1,!0),q.trigger(a,"afterUpdate",p),a},p.render=function(a){var b={timestamp:a.timing.timestamp};q.trigger(a,"beforeRender",b),a.render.controller.world(a),q.trigger(a,"afterRender",b)},p.merge=function(a,b){if(o.extend(a,b),b.world){a.world=b.world,p.clear(a);for(var d=c.allBodies(a.world),e=0;e<d.length;e++){var f=d[e];u.set(f,!1),f.id=o.nextId()}}},p.clear=function(a){var b=a.world;i.clear(a.pairs);var d=a.broadphase;if(d.controller){var e=c.allBodies(b);d.controller.clear(d),d.controller.update(d,e,a,!0)}};var f=function(a){for(var b=0;b<a.length;b++){var c=a[b];c.force.x=0,c.force.y=0,c.torque=0}},h=function(a,b){for(var c=0;c<a.length;c++){var d=a[c];d.isStatic||d.isSleeping||(d.force.y+=d.mass*b.y*.001,d.force.x+=d.mass*b.x*.001)}},j=function(a,c,d,e,f){for(var g=0;g<a.length;g++){var h=a[g];h.isStatic||h.isSleeping||h.bounds.max.x<f.min.x||h.bounds.min.x>f.max.x||h.bounds.max.y<f.min.y||h.bounds.min.y>f.max.y||b.update(h,c,d,e)}}}();var q={};!function(){q.on=function(a,b,c){for(var d,e=b.split(" "),f=0;f<e.length;f++)d=e[f],a.events=a.events||{},a.events[d]=a.events[d]||[],a.events[d].push(c);return c},q.off=function(a,b,c){if(!b)return void(a.events={});"function"==typeof b&&(c=b,b=o.keys(a.events).join(" "));for(var d=b.split(" "),e=0;e<d.length;e++){var f=a.events[d[e]],g=[];if(c)for(var h=0;h<f.length;h++)f[h]!==c&&g.push(f[h]);a.events[d[e]]=g}},q.trigger=function(a,b,c){var d,e,f,g;if(a.events){c||(c={}),d=b.split(" ");for(var h=0;h<d.length;h++)if(e=d[h],f=a.events[e]){g=o.clone(c,!1),g.name=e,g.source=a;for(var i=0;i<f.length;i++)f[i].apply(a,[g])}}}}();var r={};!function(){r.create=function(){return{extended:!1,narrowDetections:0,narrowphaseTests:0,narrowReuse:0,narrowReuseCount:0,midphaseTests:0,broadphaseTests:0,narrowEff:1e-4,midEff:1e-4,broadEff:1e-4,collisions:0,buckets:0,bodies:0,pairs:0}},r.reset=function(a){a.extended&&(a.narrowDetections=0,a.narrowphaseTests=0,a.narrowReuse=0,a.narrowReuseCount=0,a.midphaseTests=0,a.broadphaseTests=0,a.narrowEff=0,a.midEff=0,a.broadEff=0,a.collisions=0,a.buckets=0,a.pairs=0,a.bodies=0)},r.update=function(a,b){if(a.extended){var d=b.world,e=c.allBodies(d);a.collisions=a.narrowDetections,a.pairs=b.pairs.list.length,a.bodies=e.length,a.midEff=(a.narrowDetections/(a.midphaseTests||1)).toFixed(2),a.narrowEff=(a.narrowDetections/(a.narrowphaseTests||1)).toFixed(2),a.broadEff=(1-a.broadphaseTests/(e.length||1)).toFixed(2),a.narrowReuse=(a.narrowReuseCount/(a.narrowphaseTests||1)).toFixed(2)}}}();var s={};!function(){s.create=function(b){var c={};return b||o.log("Mouse.create: element was undefined, defaulting to document.body","warn"),c.element=b||document.body,c.absolute={x:0,y:0},c.position={x:0,y:0},c.mousedownPosition={x:0,y:0},c.mouseupPosition={x:0,y:0},c.offset={x:0,y:0},c.scale={x:1,y:1},c.wheelDelta=0,c.button=-1,c.pixelRatio=c.element.getAttribute("data-pixel-ratio")||1,c.sourceEvents={mousemove:null,mousedown:null,mouseup:null,mousewheel:null},c.mousemove=function(b){var 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d,e,f=c,g=a.render,h=g.options;for(f.beginPath(),e=0;e<b.length;e++)d=b[e],d.render.visible&&(f.arc(d.position.x,d.position.y,3,0,2*Math.PI,!1),f.closePath());for(f.fillStyle=h.wireframes?"indianred":"rgba(0,0,0,0.5)",f.fill(),f.beginPath(),e=0;e<b.length;e++)d=b[e],d.render.visible&&(f.arc(d.positionPrev.x,d.positionPrev.y,2,0,2*Math.PI,!1),f.closePath());f.fillStyle="rgba(255,165,0,0.8)",f.fill()},B.bodyVelocity=function(a,b,c){var d=c;d.beginPath();for(var e=0;e<b.length;e++){var f=b[e];f.render.visible&&(d.moveTo(f.position.x,f.position.y),d.lineTo(f.position.x+2*(f.position.x-f.positionPrev.x),f.position.y+2*(f.position.y-f.positionPrev.y)))}d.lineWidth=3,d.strokeStyle="cornflowerblue",d.stroke()},B.bodyIds=function(a,b,c){for(var d=c,e=0;e<b.length;e++){var f=b[e];f.render.visible&&(d.font="12px Arial",d.fillStyle="rgba(255,255,255,0.5)",d.fillText(f.id,f.position.x+10,f.position.y-10))}},B.collisions=function(a,b,c){var d,e,f,g,h=c,i=a.render.options;for(h.beginPath(),f=0;f<b.length;f++)for(d=b[f],e=d.collision,g=0;g<d.activeContacts.length;g++){var j=d.activeContacts[g],k=j.vertex;h.rect(k.x-1.5,k.y-1.5,3.5,3.5)}for(h.fillStyle=i.wireframes?"rgba(255,255,255,0.7)":"orange",h.fill(),h.beginPath(),f=0;f<b.length;f++)if(d=b[f],e=d.collision,d.activeContacts.length>0){var l=d.activeContacts[0].vertex.x,m=d.activeContacts[0].vertex.y;2===d.activeContacts.length&&(l=(d.activeContacts[0].vertex.x+d.activeContacts[1].vertex.x)/2,m=(d.activeContacts[0].vertex.y+d.activeContacts[1].vertex.y)/2),h.moveTo(l-8*e.normal.x,m-8*e.normal.y),h.lineTo(l,m)}h.strokeStyle=i.wireframes?"rgba(255,165,0,0.7)":"orange",h.lineWidth=1,h.stroke()},B.grid=function(a,b,c){var d=c,e=a.render.options;d.strokeStyle=e.wireframes?"rgba(255,180,0,0.1)":"rgba(255,180,0,0.5)",d.beginPath();for(var f=o.keys(b.buckets),g=0;g<f.length;g++){var h=f[g];if(!(b.buckets[h].length<2)){var 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n=m.pointA;m.bodyA&&(n=m.pointB),b.beginPath(),b.arc(n.x,n.y,10,0,2*Math.PI),b.closePath(),b.stroke()}b.setLineDash([0]),b.translate(-.5,-.5)}null!==a.selectStart&&(b.translate(.5,.5),b.lineWidth=1,b.strokeStyle="rgba(255,165,0,0.6)",b.fillStyle="rgba(255,165,0,0.1)",c=a.selectBounds,b.beginPath(),b.rect(Math.floor(c.min.x),Math.floor(c.min.y),Math.floor(c.max.x-c.min.x),Math.floor(c.max.y-c.min.y)),b.closePath(),b.stroke(),b.fill(),b.translate(-.5,-.5)),g.hasBounds&&b.setTransform(1,0,0,1,0,0)};var a=function(a,b){var c=document.createElement("canvas");return c.width=a,c.height=b,c.oncontextmenu=function(){return!1},c.onselectstart=function(){return!1},c},b=function(a){var b=a.getContext("2d"),c=window.devicePixelRatio||1,d=b.webkitBackingStorePixelRatio||b.mozBackingStorePixelRatio||b.msBackingStorePixelRatio||b.oBackingStorePixelRatio||b.backingStorePixelRatio||1;return c/d},d=function(a,b){var c=a.textures[b];return c?c:(c=a.textures[b]=new Image,c.src=b,c)},e=function(a,b){var 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j="b-"+d.id,k=e.primitives[j],l=e.container;k||(k=e.primitives[j]=b(e,d),k.initialAngle=d.angle),-1===o.indexOf(l.children,k)&&l.addChild(k),k.position.x=d.position.x,k.position.y=d.position.y,k.rotation=d.angle-k.initialAngle}};var a=function(a,b){var c=b.render,e=c.sprite.texture,f=d(a,e),g=new PIXI.Sprite(f);return g.anchor.x=.5,g.anchor.y=.5,g},b=function(a,b){var c=b.render,d=a.options,e=new PIXI.Graphics;e.clear(),d.wireframes?(e.beginFill(0,0),e.lineStyle(1,o.colorToNumber("#bbb"),1)):(e.beginFill(o.colorToNumber(c.fillStyle),1),e.lineStyle(b.render.lineWidth,o.colorToNumber(c.strokeStyle),1)),e.moveTo(b.vertices[0].x-b.position.x,b.vertices[0].y-b.position.y);for(var f=1;f<b.vertices.length;f++)e.lineTo(b.vertices[f].x-b.position.x,b.vertices[f].y-b.position.y);return 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