/**
* matter-js 0.14.2-alpha by @liabru 2019-09-01
* http://brm.io/matter-js/
* License MIT
*/
!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,t.Matter=e()}}(function(){return function(){function e(t,n,o){function i(s,a){if(!n[s]){if(!t[s]){var l="function"==typeof require&&require;if(!a&&l)return l(s,!0);if(r)return r(s,!0);var c=new Error("Cannot find module '"+s+"'");throw c.code="MODULE_NOT_FOUND",c}var u=n[s]={exports:{}};t[s][0].call(u.exports,function(e){return i(t[s][1][e]||e)},u,u.exports,e,t,n,o)}return n[s].exports}for(var r="function"==typeof require&&require,s=0;s<o.length;s++)i(o[s]);return i}return e}()({1:[function(e,t,n){var o={};t.exports=o;var i=e("../geometry/Vertices"),r=e("../geometry/Vector"),s=e("../core/Sleeping"),a=e("../core/Common"),l=e("../geometry/Bounds"),c=e("../geometry/Axes");!function(){o._timeCorrection=!0,o._inertiaScale=4,
o._nextCollidingGroupId=1,o._nextNonCollidingGroupId=-1,o._nextCategory=1,o.create=function(t){var n={id:a.nextId(),type:"body",label:"Body",parts:[],plugin:{},angle:0,vertices:i.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},previousPositionImpulse:{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:!1,isStatic:!1,isSleeping:!1,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:!0,opacity:1,sprite:{xScale:1,yScale:1,xOffset:0,yOffset:0},lineWidth:0},events:null,bounds:null,chamfer:null,circleRadius:0,positionPrev:null,anglePrev:0,parent:null,axes:null,area:0,mass:0,inertia:0,deltaTime:null,_original:null},o=a.extend(n,t);return e(o,t),o},o.nextGroup=function(e){
return e?o._nextNonCollidingGroupId--:o._nextCollidingGroupId++},o.nextCategory=function(){return o._nextCategory=o._nextCategory<<1,o._nextCategory};var e=function(e,t){t=t||{},o.set(e,{bounds:e.bounds||l.create(e.vertices),positionPrev:e.positionPrev||r.clone(e.position),anglePrev:e.anglePrev||e.angle,vertices:e.vertices,parts:e.parts||[e],isStatic:e.isStatic,isSleeping:e.isSleeping,parent:e.parent||e}),i.rotate(e.vertices,e.angle,e.position),c.rotate(e.axes,e.angle),l.update(e.bounds,e.vertices,e.velocity),o.set(e,{axes:t.axes||e.axes,area:t.area||e.area,mass:t.mass||e.mass,inertia:t.inertia||e.inertia});var n=e.isStatic?"#2e2b44":a.choose(["#006BA6","#0496FF","#FFBC42","#D81159","#8F2D56"]);e.render.fillStyle=e.render.fillStyle||n,e.render.strokeStyle=e.render.strokeStyle||"#000",e.render.sprite.xOffset+=-(e.bounds.min.x-e.position.x)/(e.bounds.max.x-e.bounds.min.x),e.render.sprite.yOffset+=-(e.bounds.min.y-e.position.y)/(e.bounds.max.y-e.bounds.min.y)};o.set=function(e,t,n){var i
;"string"==typeof t&&(i=t,t={},t[i]=n);for(i in t)if(t.hasOwnProperty(i))switch(n=t[i],i){case"isStatic":o.setStatic(e,n);break;case"isSleeping":s.set(e,n);break;case"mass":o.setMass(e,n);break;case"density":o.setDensity(e,n);break;case"inertia":o.setInertia(e,n);break;case"vertices":o.setVertices(e,n);break;case"position":o.setPosition(e,n);break;case"angle":o.setAngle(e,n);break;case"velocity":o.setVelocity(e,n);break;case"angularVelocity":o.setAngularVelocity(e,n);break;case"parts":o.setParts(e,n);break;case"centre":o.setCentre(e,n);break;default:e[i]=n}},o.setStatic=function(e,t){for(var n=0;n<e.parts.length;n++){var o=e.parts[n];o.isStatic=t,t?(o._original={restitution:o.restitution,friction:o.friction,mass:o.mass,inertia:o.inertia,density:o.density,inverseMass:o.inverseMass,inverseInertia:o.inverseInertia},o.restitution=0,o.friction=1,o.mass=o.inertia=o.density=1/0,o.inverseMass=o.inverseInertia=0,o.positionPrev.x=o.position.x,o.positionPrev.y=o.position.y,o.anglePrev=o.angle,
o.angularVelocity=0,o.speed=0,o.angularSpeed=0,o.motion=0):o._original&&(o.restitution=o._original.restitution,o.friction=o._original.friction,o.mass=o._original.mass,o.inertia=o._original.inertia,o.density=o._original.density,o.inverseMass=o._original.inverseMass,o.inverseInertia=o._original.inverseInertia,o._original=null)}},o.setMass=function(e,t){var n=e.inertia/(e.mass/6);e.inertia=n*(t/6),e.inverseInertia=1/e.inertia,e.mass=t,e.inverseMass=1/e.mass,e.density=e.mass/e.area},o.setDensity=function(e,t){o.setMass(e,t*e.area),e.density=t},o.setInertia=function(e,t){e.inertia=t,e.inverseInertia=1/e.inertia},o.setVertices=function(e,t){t[0].body===e?e.vertices=t:e.vertices=i.create(t,e),e.axes=c.fromVertices(e.vertices),e.area=i.area(e.vertices),o.setMass(e,e.density*e.area);var n=i.centre(e.vertices);i.translate(e.vertices,n,-1),o.setInertia(e,o._inertiaScale*i.inertia(e.vertices,e.mass)),i.translate(e.vertices,e.position),l.update(e.bounds,e.vertices,e.velocity)},
o.setParts=function(e,t,n){var r;for(t=t.slice(0),e.parts.length=0,e.parts.push(e),e.parent=e,r=0;r<t.length;r++){var s=t[r];s!==e&&(s.parent=e,e.parts.push(s))}if(1!==e.parts.length){if(n=void 0===n||n){var a=[];for(r=0;r<t.length;r++)a=a.concat(t[r].vertices);i.clockwiseSort(a);var l=i.hull(a),c=i.centre(l);o.setVertices(e,l),i.translate(e.vertices,c)}var u=o._totalProperties(e);e.area=u.area,e.parent=e,e.position.x=u.centre.x,e.position.y=u.centre.y,e.positionPrev.x=u.centre.x,e.positionPrev.y=u.centre.y,o.setMass(e,u.mass),o.setInertia(e,u.inertia),o.setPosition(e,u.centre)}},o.setCentre=function(e,t,n){n?(e.positionPrev.x+=t.x,e.positionPrev.y+=t.y,e.position.x+=t.x,e.position.y+=t.y):(e.positionPrev.x=t.x-(e.position.x-e.positionPrev.x),e.positionPrev.y=t.y-(e.position.y-e.positionPrev.y),e.position.x=t.x,e.position.y=t.y)},o.setPosition=function(e,t,n){var o=r.sub(t,e.position);n?(e.positionPrev.x=e.position.x,e.positionPrev.y=e.position.y,e.velocity.x=o.x,e.velocity.y=o.y,
e.speed=r.magnitude(o)):(e.positionPrev.x+=o.x,e.positionPrev.y+=o.y);for(var s=0;s<e.parts.length;s++){var a=e.parts[s];a.position.x+=o.x,a.position.y+=o.y,i.translate(a.vertices,o),l.update(a.bounds,a.vertices,e.velocity)}},o.setAngle=function(e,t,n){var o=t-e.angle;n?(e.anglePrev=e.angle,e.angularVelocity=o,e.angularSpeed=Math.abs(o)):e.anglePrev+=o;for(var s=0;s<e.parts.length;s++){var a=e.parts[s];a.angle+=o,i.rotate(a.vertices,o,e.position),c.rotate(a.axes,o),l.update(a.bounds,a.vertices,e.velocity),s>0&&r.rotateAbout(a.position,o,e.position,a.position)}},o.setVelocity=function(e,t){var n=e.deltaTime/a._timeUnit;e.positionPrev.x=e.position.x-t.x*n,e.positionPrev.y=e.position.y-t.y*n,e.velocity.x=t.x*n,e.velocity.y=t.y*n,e.speed=r.magnitude(e.velocity)},o.getVelocity=function(e){var t=a._timeUnit/e.deltaTime;return{x:(e.position.x-e.positionPrev.x)*t,y:(e.position.y-e.positionPrev.y)*t}},o.getSpeed=function(e){return r.magnitude(o.getVelocity(e))},o.setSpeed=function(e,t){
o.setVelocity(e,r.mult(r.normalise(o.getVelocity(e)),t))},o.setAngularVelocity=function(e,t){var n=e.deltaTime/a._timeUnit;e.anglePrev=e.angle-t*n,e.angularVelocity=t*n,e.angularSpeed=Math.abs(e.angularVelocity)},o.getAngularVelocity=function(e){return(e.angle-e.anglePrev)*a._timeUnit/e.deltaTime},o.getAngularSpeed=function(e){return Math.abs(o.getAngularVelocity(e))},o.setAngularSpeed=function(e,t){o.setAngularVelocity(e,a.sign(o.getAngularVelocity(e))*t)},o.translate=function(e,t,n){o.setPosition(e,r.add(e.position,t),n)},o.rotate=function(e,t,n,i){if(n){var r=Math.cos(t),s=Math.sin(t),a=e.position.x-n.x,l=e.position.y-n.y;o.setPosition(e,{x:n.x+(a*r-l*s),y:n.y+(a*s+l*r)},i),o.setAngle(e,e.angle+t,i)}else o.setAngle(e,e.angle+t,i)},o.scale=function(e,t,n,r){var s=0,a=0;r=r||e.position;for(var u=0;u<e.parts.length;u++){var d=e.parts[u];i.scale(d.vertices,t,n,r),d.axes=c.fromVertices(d.vertices),d.area=i.area(d.vertices),o.setMass(d,e.density*d.area),i.translate(d.vertices,{
x:-d.position.x,y:-d.position.y}),o.setInertia(d,o._inertiaScale*i.inertia(d.vertices,d.mass)),i.translate(d.vertices,{x:d.position.x,y:d.position.y}),u>0&&(s+=d.area,a+=d.inertia),d.position.x=r.x+(d.position.x-r.x)*t,d.position.y=r.y+(d.position.y-r.y)*n,l.update(d.bounds,d.vertices,e.velocity)}e.parts.length>1&&(e.area=s,e.isStatic||(o.setMass(e,e.density*s),o.setInertia(e,a))),e.circleRadius&&(t===n?e.circleRadius*=t:e.circleRadius=null)},o.update=function(e,t){t=(void 0!==t?t:a._timeUnit)*e.timeScale;var n=t*t,s=o._timeCorrection?t/(e.deltaTime||t):1,u=1-e.frictionAir*(t/a._timeUnit),d=(e.position.x-e.positionPrev.x)*s,p=(e.position.y-e.positionPrev.y)*s;e.velocity.x=d*u+e.force.x/e.mass*n,e.velocity.y=p*u+e.force.y/e.mass*n,e.positionPrev.x=e.position.x,e.positionPrev.y=e.position.y,e.position.x+=e.velocity.x,e.position.y+=e.velocity.y,e.deltaTime=t,e.angularVelocity=(e.angle-e.anglePrev)*u*s+e.torque/e.inertia*n,e.anglePrev=e.angle,e.angle+=e.angularVelocity,
e.speed=r.magnitude(e.velocity),e.angularSpeed=Math.abs(e.angularVelocity);for(var f=0;f<e.parts.length;f++){var m=e.parts[f];i.translate(m.vertices,e.velocity),f>0&&(m.position.x+=e.velocity.x,m.position.y+=e.velocity.y),0!==e.angularVelocity&&(i.rotate(m.vertices,e.angularVelocity,e.position),c.rotate(m.axes,e.angularVelocity),f>0&&r.rotateAbout(m.position,e.angularVelocity,e.position,m.position)),l.update(m.bounds,m.vertices,e.velocity)}},o.applyForce=function(e,t,n){e.force.x+=n.x,e.force.y+=n.y;var o={x:t.x-e.position.x,y:t.y-e.position.y};e.torque+=o.x*n.y-o.y*n.x},o._totalProperties=function(e){for(var t={mass:0,area:0,inertia:0,centre:{x:0,y:0}},n=1===e.parts.length?0:1;n<e.parts.length;n++){var o=e.parts[n],i=o.mass!==1/0?o.mass:1;t.mass+=i,t.area+=o.area,t.inertia+=o.inertia,t.centre=r.add(t.centre,r.mult(o.position,i))}return t.centre=r.div(t.centre,t.mass),t}}()},{"../core/Common":13,"../core/Sleeping":21,"../geometry/Axes":24,"../geometry/Bounds":25,
"../geometry/Vector":27,"../geometry/Vertices":28}],2:[function(e,t,n){var o={};t.exports=o;var i=e("../core/Events"),r=e("../core/Common"),s=e("../geometry/Bounds"),a=e("./Body");!function(){o.create=function(e){return r.extend({id:r.nextId(),type:"composite",parent:null,isModified:!1,bodies:[],constraints:[],composites:[],label:"Composite",plugin:{}},e)},o.setModified=function(e,t,n,i){if(e.isModified=t,n&&e.parent&&o.setModified(e.parent,t,n,i),i)for(var r=0;r<e.composites.length;r++){var s=e.composites[r];o.setModified(s,t,n,i)}},o.add=function(e,t){var n=[].concat(t);i.trigger(e,"beforeAdd",{object:t});for(var s=0;s<n.length;s++){var a=n[s];switch(a.type){case"body":if(a.parent!==a){r.warn("Composite.add: skipped adding a compound body part (you must add its parent instead)");break}o.addBody(e,a);break;case"constraint":o.addConstraint(e,a);break;case"composite":o.addComposite(e,a);break;case"mouseConstraint":o.addConstraint(e,a.constraint)}}return i.trigger(e,"afterAdd",{object:t
}),e},o.remove=function(e,t,n){var r=[].concat(t);i.trigger(e,"beforeRemove",{object:t});for(var s=0;s<r.length;s++){var a=r[s];switch(a.type){case"body":o.removeBody(e,a,n);break;case"constraint":o.removeConstraint(e,a,n);break;case"composite":o.removeComposite(e,a,n);break;case"mouseConstraint":o.removeConstraint(e,a.constraint)}}return i.trigger(e,"afterRemove",{object:t}),e},o.addComposite=function(e,t){return e.composites.push(t),t.parent=e,o.setModified(e,!0,!0,!1),e},o.removeComposite=function(e,t,n){var i=r.indexOf(e.composites,t);if(-1!==i&&(o.removeCompositeAt(e,i),o.setModified(e,!0,!0,!1)),n)for(var 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),o.setModified(e,!0,!0,!1)),
n)for(var s=0;s<e.composites.length;s++)o.removeBody(e.composites[s],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 s=0;s<e.composites.length;s++)o.removeConstraint(e.composites[s],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){for(var t=[].concat(e.bodies),n=0;n<e.composites.length;n++)t=t.concat(o.allBodies(e.composites[n]));return t},o.allConstraints=function(e){
for(var t=[].concat(e.constraints),n=0;n<e.composites.length;n++)t=t.concat(o.allConstraints(e.composites[n]));return t},o.allComposites=function(e){for(var t=[].concat(e.composites),n=0;n<e.composites.length;n++)t=t.concat(o.allComposites(e.composites[n]));return 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?(r=i.filter(function(e){return e.id.toString()===t.toString()}),0===r.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 o.setModified(e,!0,!0,!1),e},o.translate=function(e,t,n){for(var i=n?o.allBodies(e):e.bodies,r=0;r<i.length;r++)a.translate(i[r],t);return o.setModified(e,!0,!0,!1),e},o.rotate=function(e,t,n,i){
for(var r=Math.cos(t),s=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;a.setPosition(u,{x:n.x+(d*r-p*s),y:n.y+(d*s+p*r)}),a.rotate(u,t)}return o.setModified(e,!0,!0,!1),e},o.scale=function(e,t,n,i,r){for(var s=r?o.allBodies(e):e.bodies,l=0;l<s.length;l++){var c=s[l],u=c.position.x-i.x,d=c.position.y-i.y;a.setPosition(c,{x:i.x+u*t,y:i.y+d*n}),a.scale(c,t,n)}return o.setModified(e,!0,!0,!1),e},o.bounds=function(e){for(var t=o.allBodies(e),n=[],i=0;i<t.length;i+=1){var r=t[i];n.push(r.bounds.min,r.bounds.max)}return s.create(n)}}()},{"../core/Common":13,"../core/Events":15,"../geometry/Bounds":25,"./Body":1}],3:[function(e,t,n){var o={};t.exports=o;var i=e("./Composite"),r=(e("../constraint/Constraint"),e("../core/Common"));!function(){o.create=function(e){var t=i.create(),n={label:"World",gravity:{x:0,y:1,scale:.001},bounds:{min:{x:-1/0,y:-1/0},max:{x:1/0,y:1/0}}};return r.extend(t,n,e)}}()},{"../constraint/Constraint":11,
"../core/Common":13,"./Composite":2}],4:[function(e,t,n){var o={};t.exports=o;var i=e("./SAT"),r=e("./Pair"),s=e("../geometry/Bounds");!function(){o.collisions=function(e,t,n){for(var a=[],l=t.pairs.table,c=0;c<e.length;c++){var u=e[c][0],d=e[c][1];if((!u.isStatic&&!u.isSleeping||!d.isStatic&&!d.isSleeping)&&(o.canCollide(u.collisionFilter,d.collisionFilter)&&s.overlaps(u.bounds,d.bounds)))for(var p=u.parts.length>1?1:0;p<u.parts.length;p++)for(var f=u.parts[p],m=d.parts.length>1?1:0;m<d.parts.length;m++){var v=d.parts[m];if(f===u&&v===d||s.overlaps(f.bounds,v.bounds)){var y,g=r.id(f,v),x=l[g];y=x&&x.isActive?x.collision:null;var h=i.collides(f,v,y,n);h.collided&&a.push(h)}}}return a},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)}}()},{"../geometry/Bounds":25,"./Pair":6,"./SAT":10}],5:[function(e,t,n){var o={};t.exports=o;var i=e("./Pair"),r=e("./Detector"),s=e("../core/Common");!function(){
o.create=function(e){var t={controller:o,detector:r.collisions,buckets:{},pairs:{},pairsList:[],bucketWidth:48,bucketHeight:48};return s.extend(t,e)},o.update=function(e,t,n,i){var r,s,a,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)&&!(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 m=o._getRegion(e,f);if(!f.region||m.id!==f.region.id||i){f.region&&!i||(f.region=m);var v=o._regionUnion(m,f.region);for(s=v.startCol;s<=v.endCol;s++)for(a=v.startRow;a<=v.endRow;a++){c=o._getBucketId(s,a),l=d[c];var y=s>=m.startCol&&s<=m.endCol&&a>=m.startRow&&a<=m.endRow,g=s>=f.region.startCol&&s<=f.region.endCol&&a>=f.region.startRow&&a<=f.region.endRow;!y&&g&&g&&l&&o._bucketRemoveBody(e,l,f),(f.region===m||y&&!g||i)&&(l||(l=o._createBucket(d,c)),o._bucketAddBody(e,l,f))}f.region=m,p=!0}}}p&&(e.pairsList=o._createActivePairsList(e))},o.clear=function(e){e.buckets={},e.pairs={},
e.pairsList=[]},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),s=Math.max(e.endRow,t.endRow);return o._createRegion(n,i,r,s)},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),s=Math.floor(n.min.y/e.bucketHeight),a=Math.floor(n.max.y/e.bucketHeight);return o._createRegion(i,r,s,a)},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){for(var o=0;o<t.length;o++){var r=t[o];if(!(n.id===r.id||n.isStatic&&r.isStatic)){var s=i.id(n,r),a=e.pairs[s];a?a[2]+=1:e.pairs[s]=[n,r,1]}}t.push(n)},o._bucketRemoveBody=function(e,t,n){t.splice(s.indexOf(t,n),1);for(var o=0;o<t.length;o++){var r=t[o],a=i.id(n,r),l=e.pairs[a];l&&(l[2]-=1)}},o._createActivePairsList=function(e){
var t,n,o=[];t=s.keys(e.pairs);for(var i=0;i<t.length;i++)n=e.pairs[t[i]],n[2]>0?o.push(n):delete e.pairs[t[i]];return o}}()},{"../core/Common":13,"./Detector":4,"./Pair":6}],6:[function(e,t,n){var o={};t.exports=o,function(){o.create=function(e,t){var n=e.bodyA,i=e.bodyB,r={id:o.id(n,i),bodyA:n,bodyB:i,activeContacts:[],separation:0,isActive:!0,confirmedActive:!0,isSensor:n.isSensor||i.isSensor,timeCreated:t,timeUpdated:t,collision:null,inverseMass:0,friction:0,frictionStatic:0,restitution:0,slop:0};return o.update(r,e,t),r},o.update=function(e,t,n){if(e.collision=t,t.collided){var i=t.supports,r=e.activeContacts,s=t.parentA,a=t.parentB;e.inverseMass=s.inverseMass+a.inverseMass,e.friction=Math.min(s.friction,a.friction),e.frictionStatic=Math.max(s.frictionStatic,a.frictionStatic),e.restitution=Math.max(s.restitution,a.restitution),e.slop=Math.max(s.slop,a.slop);for(var l=0;l<i.length;l++)r[l]=i[l].contact;var c=i.length;c<r.length&&(r.length=c),e.separation=t.depth,o.setActive(e,!0,n)
}else!0===e.isActive&&o.setActive(e,!1,n)},o.setActive=function(e,t,n){t?(e.isActive=!0,e.timeUpdated=n):(e.isActive=!1,e.activeContacts.length=0)},o.id=function(e,t){return e.id<t.id?"A"+e.id+"B"+t.id:"A"+t.id+"B"+e.id}}()},{}],7:[function(e,t,n){var o={};t.exports=o;var i=e("./Pair"),r=e("../core/Common");!function(){o._pairMaxIdleLife=1e3,o.create=function(e){return r.extend({table:{},list:[],collisionStart:[],collisionActive:[],collisionEnd:[]},e)},o.update=function(e,t,n){var o,r,s,a,l=e.list,c=e.table,u=e.collisionStart,d=e.collisionEnd,p=e.collisionActive;for(u.length=0,d.length=0,p.length=0,a=0;a<l.length;a++)l[a].confirmedActive=!1;for(a=0;a<t.length;a++)o=t[a],o.collided&&(r=i.id(o.bodyA,o.bodyB),s=c[r],s?(s.isActive?p.push(s):u.push(s),i.update(s,o,n),s.confirmedActive=!0):(s=i.create(o,n),c[r]=s,u.push(s),l.push(s)));for(a=0;a<l.length;a++)s=l[a],s.isActive&&!s.confirmedActive&&(i.setActive(s,!1,n),d.push(s))},o.removeOld=function(e,t){var n,i,r,s,a=e.list,l=e.table,c=[]
;for(s=0;s<a.length;s++)n=a[s],i=n.collision,i.bodyA.isSleeping||i.bodyB.isSleeping?n.timeUpdated=t:t-n.timeUpdated>o._pairMaxIdleLife&&c.push(s);for(s=0;s<c.length;s++)r=c[s]-s,n=a[r],delete l[n.id],a.splice(r,1)},o.clear=function(e){return e.table={},e.list.length=0,e.collisionStart.length=0,e.collisionActive.length=0,e.collisionEnd.length=0,e}}()},{"../core/Common":13,"./Pair":6}],8:[function(e,t,n){var o={};t.exports=o;var i=e("../geometry/Vector"),r=e("./SAT"),s=e("../geometry/Bounds"),a=e("../factory/Bodies"),l=e("../geometry/Vertices");!function(){o.collides=function(e,t){for(var n=[],o=0;o<t.length;o++){var i=t[o];if(s.overlaps(i.bounds,e.bounds))for(var a=1===i.parts.length?0:1;a<i.parts.length;a++){var l=i.parts[a];if(s.overlaps(l.bounds,e.bounds)){var c=r.collides(l,e);if(c.collided){n.push(c);break}}}}return n},o.ray=function(e,t,n,r){r=r||1e-100;for(var s=i.angle(t,n),l=i.magnitude(i.sub(t,n)),c=.5*(n.x+t.x),u=.5*(n.y+t.y),d=a.rectangle(c,u,l,r,{angle:s
}),p=o.collides(d,e),f=0;f<p.length;f+=1){var m=p[f];m.body=m.bodyB=m.bodyA}return p},o.region=function(e,t,n){for(var o=[],i=0;i<e.length;i++){var r=e[i],a=s.overlaps(r.bounds,t);(a&&!n||!a&&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(s.contains(i.bounds,t))for(var r=1===i.parts.length?0:1;r<i.parts.length;r++){var a=i.parts[r];if(s.contains(a.bounds,t)&&l.contains(a.vertices,t)){n.push(i);break}}}return n}}()},{"../factory/Bodies":22,"../geometry/Bounds":25,"../geometry/Vector":27,"../geometry/Vertices":28,"./SAT":10}],9:[function(e,t,n){var o={};t.exports=o;var i=e("../geometry/Vertices"),r=e("../geometry/Vector"),s=e("../core/Common"),a=e("../geometry/Bounds");!function(){o._restingThresh=4,o._restingThreshTangent=6,o._positionDampen=.9,o._positionWarming=.8,o._frictionNormalMultiplier=5,o.preSolvePosition=function(e){var t,n,o;for(t=0;t<e.length;t++)n=e[t],n.isActive&&(o=n.activeContacts.length,n.collision.parentA.totalContacts+=o,
n.collision.parentB.totalContacts+=o)},o.solvePosition=function(e,t,n){var i,r,a,l,c,u,d,p,f,m,v,y,g,x,h,b,w=n/s._timeUnit,S=o._positionDampen*w;for(i=0;i<t.length;i++){var C=t[i];C.previousPositionImpulse.x=C.positionImpulse.x,C.previousPositionImpulse.y=C.positionImpulse.y}for(i=0;i<e.length;i++)l=e[i],l.isActive&&!l.isSensor&&(c=l.collision,u=c.parentA,d=c.parentB,p=c.normal,v=u.previousPositionImpulse,y=d.previousPositionImpulse,m=c.penetration,x=y.x-v.x+m.x,h=y.y-v.y+m.y,r=p.x,a=p.y,f=r*x+a*h,l.separation=f,b=(f-l.slop)*S,(u.isStatic||d.isStatic)&&(b*=2),u.isStatic||u.isSleeping||(g=b/u.totalContacts,u.positionImpulse.x+=r*g,u.positionImpulse.y+=a*g),d.isStatic||d.isSleeping||(g=b/d.totalContacts,d.positionImpulse.x-=r*g,d.positionImpulse.y-=a*g))},o.postSolvePosition=function(e){for(var t=0;t<e.length;t++){var n=e[t];if(n.totalContacts=0,0!==n.positionImpulse.x||0!==n.positionImpulse.y){for(var s=0;s<n.parts.length;s++){var l=n.parts[s];i.translate(l.vertices,n.positionImpulse),
a.update(l.bounds,l.vertices,n.velocity),l.position.x+=n.positionImpulse.x,l.position.y+=n.positionImpulse.y}n.positionPrev.x+=n.positionImpulse.x,n.positionPrev.y+=n.positionImpulse.y,r.dot(n.positionImpulse,n.velocity)<0?(n.positionImpulse.x=0,n.positionImpulse.y=0):(n.positionImpulse.x*=o._positionWarming,n.positionImpulse.y*=o._positionWarming)}}},o.preSolveVelocity=function(e){var t,n,o,i,s,a,l,c,u,d,p,f,m,v,y=r._temp[0],g=r._temp[1];for(t=0;t<e.length;t++)if(o=e[t],o.isActive&&!o.isSensor)for(i=o.activeContacts,s=o.collision,a=s.parentA,l=s.parentB,c=s.normal,u=s.tangent,n=0;n<i.length;n++)d=i[n],p=d.vertex,f=d.normalImpulse,m=d.tangentImpulse,0===f&&0===m||(y.x=c.x*f+u.x*m,y.y=c.y*f+u.y*m,a.isStatic||a.isSleeping||(v=r.sub(p,a.position,g),a.positionPrev.x+=y.x*a.inverseMass,a.positionPrev.y+=y.y*a.inverseMass,a.anglePrev+=r.cross(v,y)*a.inverseInertia),l.isStatic||l.isSleeping||(v=r.sub(p,l.position,g),l.positionPrev.x-=y.x*l.inverseMass,l.positionPrev.y-=y.y*l.inverseMass,
l.anglePrev-=r.cross(v,y)*l.inverseInertia))},o.solveVelocity=function(e,t){for(var n=t/s._timeUnit,i=n*n,a=i*n,l=r._temp[0],c=r._temp[1],u=r._temp[2],d=r._temp[3],p=r._temp[4],f=r._temp[5],m=0;m<e.length;m++){var v=e[m];if(v.isActive&&!v.isSensor){var y=v.collision,g=y.parentA,x=y.parentB,h=y.normal,b=y.tangent,w=v.activeContacts,S=1/w.length;g.velocity.x=g.position.x-g.positionPrev.x,g.velocity.y=g.position.y-g.positionPrev.y,x.velocity.x=x.position.x-x.positionPrev.x,x.velocity.y=x.position.y-x.positionPrev.y,g.angularVelocity=g.angle-g.anglePrev,x.angularVelocity=x.angle-x.anglePrev;for(var C=0;C<w.length;C++){var A=w[C],P=A.vertex,B=r.sub(P,g.position,c),M=r.sub(P,x.position,u),k=r.add(g.velocity,r.mult(r.perp(B),g.angularVelocity),d),I=r.add(x.velocity,r.mult(r.perp(M),x.angularVelocity),p),_=r.sub(k,I,f),T=r.dot(h,_),V=r.dot(b,_),R=Math.abs(V),E=s.sign(V),L=(1+v.restitution)*T,F=s.clamp(v.separation+T,0,1)*o._frictionNormalMultiplier,O=V,q=1/0
;R>v.friction*v.frictionStatic*F*a&&(q=R*n,O=s.clamp(v.friction*E*a,-q,q));var W=r.cross(B,h),D=r.cross(M,h),U=S/(g.inverseMass+x.inverseMass+g.inverseInertia*W*W+x.inverseInertia*D*D);if(L*=U,O*=U,T<0&&T*T>o._restingThresh*i)A.normalImpulse=0;else{var N=A.normalImpulse;A.normalImpulse=Math.min(A.normalImpulse+L,0),L=A.normalImpulse-N}if(V*V>o._restingThreshTangent*i)A.tangentImpulse=0;else{var G=A.tangentImpulse;A.tangentImpulse=s.clamp(A.tangentImpulse+O,-q,q),O=A.tangentImpulse-G}l.x=h.x*L+b.x*O,l.y=h.y*L+b.y*O,g.isStatic||g.isSleeping||(g.positionPrev.x+=l.x*g.inverseMass,g.positionPrev.y+=l.y*g.inverseMass,g.anglePrev+=r.cross(B,l)*g.inverseInertia),x.isStatic||x.isSleeping||(x.positionPrev.x-=l.x*x.inverseMass,x.positionPrev.y-=l.y*x.inverseMass,x.anglePrev-=r.cross(M,l)*x.inverseInertia)}}}}}()},{"../core/Common":13,"../geometry/Bounds":25,"../geometry/Vector":27,"../geometry/Vertices":28}],10:[function(e,t,n){var o={};t.exports=o
;var i=e("../geometry/Vertices"),r=e("../geometry/Vector"),s=e("../core/Common");!function(){o._reuseMotionThresh=.2,o.collides=function(e,t,n,a){var l,c,u,d,p=!1,f=a/s._timeUnit;if(a=void 0!==a?a:0,n){var m=e.parent,v=t.parent,y=m.speed*m.speed+m.angularSpeed*m.angularSpeed+v.speed*v.speed+v.angularSpeed*v.angularSpeed;p=n&&n.collided&&y<o._reuseMotionThresh*f*f,d=n}else d={collided:!1,bodyA:e,bodyB:t};if(n&&p){var g=d.axisBody,x=g===e?t:e,h=[g.axes[n.axisNumber]];if(u=o._overlapAxes(g.vertices,x.vertices,h),d.reused=!0,u.overlap<=0)return d.collided=!1,d}else{if(l=o._overlapAxes(e.vertices,t.vertices,e.axes),l.overlap<=0)return d.collided=!1,d;if(c=o._overlapAxes(t.vertices,e.vertices,t.axes),c.overlap<=0)return d.collided=!1,d;l.overlap<c.overlap?(u=l,d.axisBody=e):(u=c,d.axisBody=t),d.axisNumber=u.axisNumber}d.bodyA=e.id<t.id?e:t,d.bodyB=e.id<t.id?t:e,d.collided=!0,d.depth=u.overlap,d.parentA=d.bodyA.parent,d.parentB=d.bodyB.parent,e=d.bodyA,t=d.bodyB,
r.dot(u.axis,r.sub(t.position,e.position))<0?d.normal={x:u.axis.x,y:u.axis.y}:d.normal={x:-u.axis.x,y:-u.axis.y},d.tangent=r.perp(d.normal),d.penetration=d.penetration||{},d.penetration.x=d.normal.x*d.depth,d.penetration.y=d.normal.y*d.depth;var b=o._findSupports(e,t,d.normal),w=[];if(i.contains(e.vertices,b[0])&&w.push(b[0]),i.contains(e.vertices,b[1])&&w.push(b[1]),w.length<2){var S=o._findSupports(t,e,r.neg(d.normal));i.contains(t.vertices,S[0])&&w.push(S[0]),w.length<2&&i.contains(t.vertices,S[1])&&w.push(S[1])}return w.length<1&&(w=[b[0]]),d.supports=w,d},o._overlapAxes=function(e,t,n){for(var i,s,a=r._temp[0],l=r._temp[1],c={overlap:Number.MAX_VALUE},u=0;u<n.length;u++){if(s=n[u],o._projectToAxis(a,e,s),o._projectToAxis(l,t,s),(i=Math.min(a.max-l.min,l.max-a.min))<=0)return c.overlap=i,c;i<c.overlap&&(c.overlap=i,c.axis=s,c.axisNumber=u)}return c},o._projectToAxis=function(e,t,n){for(var o=r.dot(t[0],n),i=o,s=1;s<t.length;s+=1){var a=r.dot(t[s],n);a>i?i=a:a<o&&(o=a)}e.min=o,
e.max=i},o._findSupports=function(e,t,n){for(var o,i,s,a,l=Number.MAX_VALUE,c=r._temp[0],u=t.vertices,d=e.position,p=0;p<u.length;p++)i=u[p],c.x=i.x-d.x,c.y=i.y-d.y,(o=-r.dot(n,c))<l&&(l=o,s=i);return i=u[s.index-1>=0?s.index-1:u.length-1],c.x=i.x-d.x,c.y=i.y-d.y,l=-r.dot(n,c),a=i,i=u[(s.index+1)%u.length],c.x=i.x-d.x,c.y=i.y-d.y,o=-r.dot(n,c),o<l&&(a=i),[s,a]}}()},{"../core/Common":13,"../geometry/Vector":27,"../geometry/Vertices":28}],11:[function(e,t,n){var o={};t.exports=o;var i=e("../geometry/Vertices"),r=e("../geometry/Vector"),s=e("../core/Sleeping"),a=e("../geometry/Bounds"),l=e("../geometry/Axes"),c=e("../core/Common");!function(){o._warming=.4,o._torqueDampen=1,o._minLength=1e-6,o.create=function(e){var t=e;t.bodyA&&!t.pointA&&(t.pointA={x:0,y:0}),t.bodyB&&!t.pointB&&(t.pointB={x:0,y:0});var n=t.bodyA?r.add(t.bodyA.position,t.pointA):t.pointA,o=t.bodyB?r.add(t.bodyB.position,t.pointB):t.pointB,i=r.magnitude(r.sub(n,o));t.length=void 0!==t.length?t.length:i,
t.id=t.id||c.nextId(),t.label=t.label||"Constraint",t.type="constraint",t.stiffness=t.stiffness||(t.length>0?1:.7),t.damping=t.damping||0,t.angularStiffness=t.angularStiffness||0,t.angleA=t.bodyA?t.bodyA.angle:t.angleA,t.angleB=t.bodyB?t.bodyB.angle:t.angleB,t.plugin={};var s={visible:!0,lineWidth:2,strokeStyle:"#ffffff",type:"line",anchors:!0};return 0===t.length&&t.stiffness>.1?(s.type="pin",s.anchors=!1):t.stiffness<.9&&(s.type="spring"),t.render=c.extend(s,t.render),t},o.preSolveAll=function(e){for(var t=0;t<e.length;t+=1){var n=e[t],o=n.constraintImpulse;n.isStatic||0===o.x&&0===o.y&&0===o.angle||(n.position.x+=o.x,n.position.y+=o.y,n.angle+=o.angle)}},o.solveAll=function(e,t){for(var n=c.clamp(t/c._timeUnit,0,1),i=0;i<e.length;i+=1){var r=e[i],s=!r.bodyA||r.bodyA&&r.bodyA.isStatic,a=!r.bodyB||r.bodyB&&r.bodyB.isStatic;(s||a)&&o.solve(e[i],n)}for(i=0;i<e.length;i+=1)r=e[i],s=!r.bodyA||r.bodyA&&r.bodyA.isStatic,a=!r.bodyB||r.bodyB&&r.bodyB.isStatic,s||a||o.solve(e[i],n)},
o.solve=function(e,t){var n=e.bodyA,i=e.bodyB,s=e.pointA,a=e.pointB;if(n||i){n&&!n.isStatic&&(r.rotate(s,n.angle-e.angleA,s),e.angleA=n.angle),i&&!i.isStatic&&(r.rotate(a,i.angle-e.angleB,a),e.angleB=i.angle);var l=s,c=a;if(n&&(l=r.add(n.position,s)),i&&(c=r.add(i.position,a)),l&&c){var u=r.sub(l,c),d=r.magnitude(u);d<o._minLength&&(d=o._minLength);var p,f,m,v,y,g=(d-e.length)/d,x=e.stiffness>=1||0===e.length,h=x?e.stiffness:e.stiffness*t*t,b=e.damping*t,w=r.mult(u,g*h),S=(n?n.inverseMass:0)+(i?i.inverseMass:0),C=(n?n.inverseInertia:0)+(i?i.inverseInertia:0),A=S+C;if(b>0){var P=r.create();m=r.div(u,d),y=r.sub(i&&r.sub(i.position,i.positionPrev)||P,n&&r.sub(n.position,n.positionPrev)||P),v=r.dot(m,y)}n&&!n.isStatic&&(f=n.inverseMass/S,n.constraintImpulse.x-=w.x*f,n.constraintImpulse.y-=w.y*f,n.position.x-=w.x*f,n.position.y-=w.y*f,b>0&&(n.positionPrev.x-=b*m.x*v*f,n.positionPrev.y-=b*m.y*v*f),p=r.cross(s,w)/A*o._torqueDampen*n.inverseInertia*(1-e.angularStiffness),
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"../geometry/Vertices":28}],12:[function(e,t,n){var o={};t.exports=o;var i=e("../geometry/Vertices"),r=e("../core/Sleeping"),s=e("../core/Mouse"),a=e("../core/Events"),l=e("../collision/Detector"),c=e("./Constraint"),u=e("../body/Composite"),d=e("../core/Common"),p=e("../geometry/Bounds");!function(){o.create=function(e,t){var n=(e?e.mouse:null)||(t?t.mouse:null);n||(e&&e.render&&e.render.canvas?n=s.create(e.render.canvas):t&&t.element?n=s.create(t.element):(n=s.create(),d.warn("MouseConstraint.create: options.mouse was undefined, options.element was undefined, may not function as expected")));var i=c.create({label:"Mouse Constraint",pointA:n.position,pointB:{x:0,y:0},length:.01,stiffness:.1,angularStiffness:1,render:{strokeStyle:"#90EE90",lineWidth:3}}),r={type:"mouseConstraint",mouse:n,element:null,body:null,constraint:i,collisionFilter:{category:1,mask:4294967295,group:0}},l=d.extend(r,t);return a.on(e,"beforeUpdate",function(){var t=u.allBodies(e.world);o.update(l,t),
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"../core/Sleeping":21,"../geometry/Bounds":25,"../geometry/Vertices":28,"./Constraint":11}],13:[function(e,t,n){(function(n){var o={};t.exports=o,function(){o._timeUnit=1e3/60,o._nextId=0,o._seed=0,o._nowStartTime=+new Date,o.extend=function(e,t){var n,i;"boolean"==typeof t?(n=2,i=t):(n=1,i=!0);for(var r=n;r<arguments.length;r++){var s=arguments[r];if(s)for(var a in s)i&&s[a]&&s[a].constructor===Object?e[a]&&e[a].constructor!==Object?e[a]=s[a]:(e[a]=e[a]||{},o.extend(e[a],i,s[a])):e[a]=s[a]}return e},o.clone=function(e,t){return o.extend({},t,e)},o.keys=function(e){if(Object.keys)return Object.keys(e);var t=[];for(var n in e)t.push(n);return t},o.values=function(e){var t=[];if(Object.keys){for(var n=Object.keys(e),o=0;o<n.length;o++)t.push(e[n[o]]);return t}for(var i in e)t.push(e[i]);return t},o.get=function(e,t,n,o){t=t.split(".").slice(n,o);for(var i=0;i<t.length;i+=1)e=e[t[i]];return e},o.set=function(e,t,n,i,r){var s=t.split(".").slice(i,r);return o.get(e,t,0,-1)[s[s.length-1]]=n,
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;var i=e("../body/World"),r=e("./Sleeping"),s=e("../collision/Resolver"),a=e("../render/Render"),l=e("../collision/Pairs"),c=(e("./Metrics"),e("../collision/Grid")),u=e("./Events"),d=e("../body/Composite"),p=e("../constraint/Constraint"),f=e("./Common"),m=e("../body/Body");!function(){o.create=function(e,t){t=f.isElement(e)?t:e,e=f.isElement(e)?e:null,t=t||{},(e||t.render)&&f.warn("Engine.create: engine.render is deprecated (see docs)");var n={positionIterations:6,velocityIterations:4,constraintIterations:2,enableSleeping:!1,events:[],plugin:{},timing:{timestamp:0,timeScale:1},broadphase:{controller:c}},o=f.extend(n,t);if(e||o.render){var r={element:e,controller:a};o.render=f.extend(r,o.render)}return o.render&&o.render.controller&&(o.render=o.render.controller.create(o.render)),o.render&&(o.render.engine=o),o.world=t.world||i.create(o.world),o.pairs=l.create(),o.broadphase=o.broadphase.controller.create(o.broadphase),o.metrics=o.metrics||{extended:!1},o},o.update=function(e,t){
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i=0;i<e.velocityIterations;i++)s.solveVelocity(h.list,t);return h.collisionActive.length>0&&u.trigger(e,"collisionActive",{pairs:h.collisionActive}),h.collisionEnd.length>0&&u.trigger(e,"collisionEnd",{pairs:h.collisionEnd}),o._bodiesClearForces(y),u.trigger(e,"afterUpdate",v),e},o.merge=function(e,t){if(f.extend(e,t),t.world){e.world=t.world,o.clear(e);for(var n=d.allBodies(e.world),i=0;i<n.length;i++){var s=n[i];r.set(s,!1),s.id=f.nextId()}}},o.clear=function(e){var t=e.world;l.clear(e.pairs);var n=e.broadphase;if(n.controller){var o=d.allBodies(t);n.controller.clear(n),n.controller.update(n,o,e,!0)}},o._bodiesClearForces=function(e){for(var t=0;t<e.length;t++){var n=e[t];n.force.x=0,n.force.y=0,n.torque=0}},o._bodiesApplyGravity=function(e,t){var n=void 0!==t.scale?t.scale:.001;if((0!==t.x||0!==t.y)&&0!==n)for(var o=0;o<e.length;o++){var i=e[o];i.isStatic||i.isSleeping||(i.force.y+=i.mass*t.y*n,i.force.x+=i.mass*t.x*n)}},o._bodiesUpdate=function(e,t){for(var n=0;n<e.length;n++){
var o=e[n];o.isStatic||o.isSleeping||m.update(o,t)}}}()},{"../body/Body":1,"../body/Composite":2,"../body/World":3,"../collision/Grid":5,"../collision/Pairs":7,"../collision/Resolver":9,"../constraint/Constraint":11,"../render/Render":30,"./Common":13,"./Events":15,"./Metrics":17,"./Sleeping":21}],15:[function(e,t,n){var o={};t.exports=o;var i=e("./Common");!function(){o.on=function(e,t,n){for(var o,i=t.split(" "),r=0;r<i.length;r++)o=i[r],e.events=e.events||{},e.events[o]=e.events[o]||[],e.events[o].push(n);return n},o.off=function(e,t,n){if(!t)return void(e.events={});"function"==typeof t&&(n=t,t=i.keys(e.events).join(" "));for(var o=t.split(" "),r=0;r<o.length;r++){var s=e.events[o[r]],a=[];if(n&&s)for(var l=0;l<s.length;l++)s[l]!==n&&a.push(s[l]);e.events[o[r]]=a}},o.trigger=function(e,t,n){var o,r,s,a,l=e.events;if(l&&i.keys(l).length>0){n||(n={}),o=t.split(" ");for(var c=0;c<o.length;c++)if(r=o[c],s=l[r]){a=i.clone(n,!1),a.name=r,a.source=e
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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()},o.setElement(t,t.element),t},o.setElement=function(e,t){e.element=t,t.addEventListener("mousemove",e.mousemove),t.addEventListener("mousedown",e.mousedown),t.addEventListener("mouseup",e.mouseup),t.addEventListener("mousewheel",e.mousewheel),t.addEventListener("DOMMouseScroll",e.mousewheel),t.addEventListener("touchmove",e.mousemove),t.addEventListener("touchstart",e.mousedown),t.addEventListener("touchend",e.mouseup)},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 o,i,r=t.getBoundingClientRect(),s=document.documentElement||document.body.parentNode||document.body,a=void 0!==window.pageXOffset?window.pageXOffset:s.scrollLeft,l=void 0!==window.pageYOffset?window.pageYOffset:s.scrollTop,c=e.changedTouches;return c?(o=c[0].pageX-r.left-a,i=c[0].pageY-r.top-l):(o=e.pageX-r.left-a,i=e.pageY-r.top-l),{x:o/(t.clientWidth/(t.width||t.clientWidth)*n),y:i/(t.clientHeight/(t.height||t.clientHeight)*n)}}}()},{"../core/Common":13}],19:[function(e,t,n){var o={};t.exports=o;var i=e("./Common");!function(){o._registry={},o.register=function(e){if(o.isPlugin(e)||i.warn("Plugin.register:",o.toString(e),"does not implement all required fields."),e.name in o._registry){
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t.world.isModified&&t.render&&t.render.controller&&t.render.controller.clear&&t.render.controller.clear(t.render),i.trigger(e,"beforeUpdate",a);for(var l=e.substeps,c=o/l,u=0;u<l;u+=1)r.update(t,c);i.trigger(e,"afterUpdate",a),t.render&&t.render.controller&&(i.trigger(e,"beforeRender",a),i.trigger(t,"beforeRender",a),t.render.controller.world(t.render),i.trigger(e,"afterRender",a),i.trigger(t,"afterRender",a)),i.trigger(e,"afterTick",a),i.trigger(t,"afterTick",a)},o.stop=function(e){t(e.frameRequestId)},o.start=function(e,t){o.run(e,t)}}()},{"./Common":13,"./Engine":14,"./Events":15}],21:[function(e,t,n){var o={};t.exports=o;var i=e("./Events"),r=e("./Common");!function(){o._motionWakeThreshold=.18,o._motionSleepThreshold=.08,o._minBias=.9,o.update=function(e,t){for(var n=t/r._timeUnit,i=0;i<e.length;i++){var s=e[i],a=s.speed*s.speed+s.angularSpeed*s.angularSpeed;if(0===s.force.x&&0===s.force.y){var l=Math.min(s.motion,a),c=Math.max(s.motion,a);s.motion=o._minBias*l+(1-o._minBias)*c,
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;var i,r=e("../geometry/Vertices"),s=e("../core/Common"),a=e("../body/Body"),l=e("../geometry/Bounds"),c=e("../geometry/Vector");!function(){o.rectangle=function(e,t,n,o,i){i=i||{};var l={label:"Rectangle Body",position:{x:e,y:t},vertices:r.fromPath("L 0 0 L "+n+" 0 L "+n+" "+o+" L 0 "+o)};if(i.chamfer){var c=i.chamfer;l.vertices=r.chamfer(l.vertices,c.radius,c.quality,c.qualityMin,c.qualityMax),delete i.chamfer}return a.create(s.extend({},l,i))},o.trapezoid=function(e,t,n,o,i,l){l=l||{},i*=.5;var c,u=(1-2*i)*n,d=n*i,p=d+u,f=p+d;c=i<.5?"L 0 0 L "+d+" "+-o+" L "+p+" "+-o+" L "+f+" 0":"L 0 0 L "+p+" "+-o+" L "+f+" 0";var m={label:"Trapezoid Body",position:{x:e,y:t},vertices:r.fromPath(c)};if(l.chamfer){var v=l.chamfer;m.vertices=r.chamfer(m.vertices,v.radius,v.quality,v.qualityMin,v.qualityMax),delete l.chamfer}return a.create(s.extend({},m,l))},o.circle=function(e,t,n,i,r){i=i||{};var a={label:"Circle Body",circleRadius:n};r=r||25;var l=Math.ceil(Math.max(10,Math.min(r,n)))
;return l%2==1&&(l+=1),o.polygon(e,t,l,n,s.extend({},a,i))},o.polygon=function(e,t,n,i,l){if(l=l||{},n<3)return o.circle(e,t,i,l);for(var c=2*Math.PI/n,u="",d=.5*c,p=0;p<n;p+=1){var f=d+p*c,m=Math.cos(f)*i,v=Math.sin(f)*i;u+="L "+m.toFixed(3)+" "+v.toFixed(3)+" "}var y={label:"Polygon Body",position:{x:e,y:t},vertices:r.fromPath(u)};if(l.chamfer){var g=l.chamfer;y.vertices=r.chamfer(y.vertices,g.radius,g.quality,g.qualityMin,g.qualityMax),delete l.chamfer}return a.create(s.extend({},y,l))},o.fromVertices=function(e,t,n,o,u,d,p){i||(i=s._requireGlobal("decomp","poly-decomp"));var f,m,v,y,g,x,h,b,w;for(o=o||{},m=[],u=void 0!==u&&u,d=void 0!==d?d:.01,p=void 0!==p?p:10,i||s.warn("Bodies.fromVertices: poly-decomp.js required. Could not decompose vertices. Fallback to convex hull."),s.isArray(n[0])||(n=[n]),b=0;b<n.length;b+=1)if(y=n[b],(v=r.isConvex(y))||!i)y=v?r.clockwiseSort(y):r.hull(y),m.push({position:{x:e,y:t},vertices:y});else{var S=y.map(function(e){return[e.x,e.y]});i.makeCCW(S),
!1!==d&&i.removeCollinearPoints(S,d);var C=i.quickDecomp(S);for(g=0;g<C.length;g++){var A=C[g],P=A.map(function(e){return{x:e[0],y:e[1]}});p>0&&r.area(P)<p||m.push({position:r.centre(P),vertices:P})}}for(g=0;g<m.length;g++)m[g]=a.create(s.extend(m[g],o));if(u){for(g=0;g<m.length;g++){var B=m[g];for(x=g+1;x<m.length;x++){var M=m[x];if(l.overlaps(B.bounds,M.bounds)){var k=B.vertices,I=M.vertices;for(h=0;h<B.vertices.length;h++)for(w=0;w<M.vertices.length;w++){var _=c.magnitudeSquared(c.sub(k[(h+1)%k.length],I[w])),T=c.magnitudeSquared(c.sub(k[h],I[(w+1)%I.length]));_<5&&T<5&&(k[h].isInternal=!0,I[w].isInternal=!0)}}}}}return m.length>1?(f=a.create(s.extend({parts:m.slice(0)},o)),a.setPosition(f,{x:e,y:t}),f):m[0]}}()},{"../body/Body":1,"../core/Common":13,"../geometry/Bounds":25,"../geometry/Vector":27,"../geometry/Vertices":28}],23:[function(e,t,n){var o={};t.exports=o;var i=e("../body/Composite"),r=e("../constraint/Constraint"),s=e("../core/Common"),a=e("../body/Body"),l=e("./Bodies")
;!function(){o.stack=function(e,t,n,o,r,s,l){for(var c,u=i.create({label:"Stack"}),d=e,p=t,f=0,m=0;m<o;m++){for(var v=0,y=0;y<n;y++){var g=l(d,p,y,m,c,f);if(g){var x=g.bounds.max.y-g.bounds.min.y,h=g.bounds.max.x-g.bounds.min.x;x>v&&(v=x),a.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+=v+s,d=e}return u},o.chain=function(e,t,n,o,a,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,m=d.bounds.max.x-d.bounds.min.x,v=p.bounds.max.y-p.bounds.min.y,y=p.bounds.max.x-p.bounds.min.x,g={bodyA:d,pointA:{x:m*t,y:f*n},bodyB:p,pointB:{x:y*o,y:v*a}},x=s.extend(g,l);i.addConstraint(e,r.create(x))}return e.label+=" Chain",e},o.mesh=function(e,t,n,o,a){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(s.extend({bodyA:u,bodyB:d},a)));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(s.extend({bodyA:u,bodyB:d},a))),o&&c>0&&(p=f[c-1+(l-1)*t],
i.addConstraint(e,r.create(s.extend({bodyA:p,bodyB:d},a)))),o&&c<t-1&&(p=f[c+1+(l-1)*t],i.addConstraint(e,r.create(s.extend({bodyA:p,bodyB:d},a))))}return e.label+=" Mesh",e},o.pyramid=function(e,t,n,i,r,s,l){return o.stack(e,t,n,i,r,s,function(t,o,s,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)){c=p-c;var m=c,v=n-1-c;if(!(s<m||s>v)){1===d&&a.translate(u,{x:(s+(n%2==1?1:-1))*f,y:0});return l(e+(u?s*f:0)+s*r,o,s,c,u,d)}}})},o.newtonsCradle=function(e,t,n,o,s){for(var a=i.create({label:"Newtons Cradle"}),c=0;c<n;c++){var u=l.circle(e+c*(1.9*o),t+s,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(a,u),i.addConstraint(a,d)}return a},o.car=function(e,t,n,o,s){var c=a.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}),m=l.circle(e+u,t+0,s,{collisionFilter:{group:c},friction:.8
}),v=l.circle(e+d,t+0,s,{collisionFilter:{group:c},friction:.8}),y=r.create({bodyB:f,pointB:{x:u,y:0},bodyA:m,stiffness:1,length:0}),g=r.create({bodyB:f,pointB:{x:d,y:0},bodyA:v,stiffness:1,length:0});return i.addBody(p,f),i.addBody(p,m),i.addBody(p,v),i.addConstraint(p,y),i.addConstraint(p,g),p},o.softBody=function(e,t,n,i,r,a,c,u,d,p){d=s.extend({inertia:1/0},d),p=s.extend({stiffness:.2,render:{type:"line",anchors:!1}},p);var f=o.stack(e,t,n,i,r,a,function(e,t){return l.circle(e,t,u,d)});return o.mesh(f,n,i,c,p),f.label="Soft Body",f}}()},{"../body/Body":1,"../body/Composite":2,"../constraint/Constraint":11,"../core/Common":13,"./Bodies":22}],24:[function(e,t,n){var o={};t.exports=o;var i=e("../geometry/Vector"),r=e("../core/Common");!function(){o.fromVertices=function(e){for(var t={},n=0;n<e.length;n++){var o=(n+1)%e.length,s=i.normalise({x:e[o].y-e[n].y,y:e[n].x-e[o].x}),a=0===s.y?1/0:s.x/s.y;a=a.toFixed(3).toString(),t[a]=s}return r.values(t)},o.rotate=function(e,t){
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26:[function(e,t,n){var o={};t.exports=o;var i=(e("../geometry/Bounds"),e("../core/Common"));!function(){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,s,a,l,c,u,d,p,f,m,v,y=[],g=0,x=0,h=0;t=t||15;var b=function(e,t,n){var o=n%2==1&&n>1;if(!p||e!=p.x||t!=p.y){p&&o?(m=p.x,v=p.y):(m=0,v=0);var i={x:m+e,y:v+t};!o&&p||(p=i),y.push(i),x=m+e,h=v+t}},w=function(e){var t=e.pathSegTypeAsLetter.toUpperCase();if("Z"!==t){switch(t){case"M":case"L":case"T":case"C":case"S":case"Q":x=e.x,h=e.y;break;case"H":x=e.x;break;case"V":h=e.y}b(x,h,e.pathSegType)}};for(o._svgPathToAbsolute(e),s=e.getTotalLength(),c=[],n=0;n<e.pathSegList.numberOfItems;n+=1)c.push(e.pathSegList.getItem(n));for(u=c.concat();g<s;){if(f=e.getPathSegAtLength(g),(l=c[f])!=d){for(;u.length&&u[0]!=l;)w(u.shift());d=l}switch(l.pathSegTypeAsLetter.toUpperCase()){case"C":case"T":case"S":case"Q":case"A":
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o.cross3=function(e,t,n){return(t.x-e.x)*(n.y-e.y)-(t.y-e.y)*(n.x-e.x)},o.add=function(e,t,n){return n||(n={}),n.x=e.x+t.x,n.y=e.y+t.y,n},o.sub=function(e,t,n){return n||(n={}),n.x=e.x-t.x,n.y=e.y-t.y,n},o.mult=function(e,t){return{x:e.x*t,y:e.y*t}},o.div=function(e,t){return{x:e.x/t,y:e.y/t}},o.perp=function(e,t){return t=!0===t?-1:1,{x:t*-e.y,y:t*e.x}},o.neg=function(e){return{x:-e.x,y:-e.y}},o.angle=function(e,t){return Math.atan2(t.y-e.y,t.x-e.x)},o._temp=[o.create(),o.create(),o.create(),o.create(),o.create(),o.create()]}()},{}],28:[function(e,t,n){var o={};t.exports=o;var i=e("../geometry/Vector"),r=e("../core/Common");!function(){o.create=function(e,t){for(var n=[],o=0;o<e.length;o++){var i=e[o],r={x:i.x,y:i.y,index:o,body:t,isInternal:!1,contact:null};r.contact={vertex:r,normalImpulse:0,tangentImpulse:0},n.push(r)}return n},o.fromPath=function(e,t){var n=/L?\s*([\-\d\.e]+)[\s,]*([\-\d\.e]+)*/gi,i=[];return e.replace(n,function(e,t,n){i.push({x:parseFloat(t),y:parseFloat(n)})}),
o.create(i,t)},o.centre=function(e){for(var t,n,r,s=o.area(e,!0),a={x:0,y:0},l=0;l<e.length;l++)r=(l+1)%e.length,t=i.cross(e[l],e[r]),n=i.mult(i.add(e[l],e[r]),t),a=i.add(a,n);return i.div(a,6*s)},o.mean=function(e){for(var t={x:0,y:0},n=0;n<e.length;n++)t.x+=e[n].x,t.y+=e[n].y;return i.div(t,e.length)},o.area=function(e,t){for(var n=0,o=e.length-1,i=0;i<e.length;i++)n+=(e[o].x-e[i].x)*(e[o].y+e[i].y),o=i;return t?n/2:Math.abs(n)/2},o.inertia=function(e,t){for(var n,o,r=0,s=0,a=e,l=0;l<a.length;l++)o=(l+1)%a.length,n=Math.abs(i.cross(a[o],a[l])),r+=n*(i.dot(a[o],a[o])+i.dot(a[o],a[l])+i.dot(a[l],a[l])),s+=n;return t/6*(r/s)},o.translate=function(e,t,n){var o;if(n)for(o=0;o<e.length;o++)e[o].x+=t.x*n,e[o].y+=t.y*n;else for(o=0;o<e.length;o++)e[o].x+=t.x,e[o].y+=t.y;return e},o.rotate=function(e,t,n){if(0!==t){for(var o=Math.cos(t),i=Math.sin(t),r=0;r<e.length;r++){var s=e[r],a=s.x-n.x,l=s.y-n.y;s.x=n.x+(a*o-l*i),s.y=n.y+(a*i+l*o)}return e}},o.contains=function(e,t){
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o.isConvex=function(e){var t,n,o,i,r=0,s=e.length;if(s<3)return null;for(t=0;t<s;t++)if(n=(t+1)%s,o=(t+2)%s,i=(e[n].x-e[t].x)*(e[o].y-e[n].y),i-=(e[n].y-e[t].y)*(e[o].x-e[n].x),i<0?r|=1:i>0&&(r|=2),3===r)return!1;return 0!==r||null},o.hull=function(e){var t,n,o=[],r=[];for(e=e.slice(0),e.sort(function(e,t){var n=e.x-t.x;return 0!==n?n:e.y-t.y}),n=0;n<e.length;n+=1){for(t=e[n];r.length>=2&&i.cross3(r[r.length-2],r[r.length-1],t)<=0;)r.pop();r.push(t)}for(n=e.length-1;n>=0;n-=1){for(t=e[n];o.length>=2&&i.cross3(o[o.length-2],o[o.length-1],t)<=0;)o.pop();o.push(t)}return o.pop(),r.pop(),o.concat(r)}}()},{"../core/Common":13,"../geometry/Vector":27}],29:[function(e,t,n){var o=t.exports=e("../core/Matter");o.Body=e("../body/Body"),o.Composite=e("../body/Composite"),o.World=e("../body/World"),o.Detector=e("../collision/Detector"),o.Grid=e("../collision/Grid"),o.Pairs=e("../collision/Pairs"),o.Pair=e("../collision/Pair"),o.Query=e("../collision/Query"),o.Resolver=e("../collision/Resolver"),
o.SAT=e("../collision/SAT"),o.Constraint=e("../constraint/Constraint"),o.MouseConstraint=e("../constraint/MouseConstraint"),o.Common=e("../core/Common"),o.Engine=e("../core/Engine"),o.Events=e("../core/Events"),o.Mouse=e("../core/Mouse"),o.Runner=e("../core/Runner"),o.Sleeping=e("../core/Sleeping"),o.Plugin=e("../core/Plugin"),o.Bodies=e("../factory/Bodies"),o.Composites=e("../factory/Composites"),o.Axes=e("../geometry/Axes"),o.Bounds=e("../geometry/Bounds"),o.Svg=e("../geometry/Svg"),o.Vector=e("../geometry/Vector"),o.Vertices=e("../geometry/Vertices"),o.Render=e("../render/Render"),o.RenderPixi=e("../render/RenderPixi"),o.World.add=o.Composite.add,o.World.remove=o.Composite.remove,o.World.addComposite=o.Composite.addComposite,o.World.addBody=o.Composite.addBody,o.World.addConstraint=o.Composite.addConstraint,o.World.clear=o.Composite.clear,o.Engine.run=o.Runner.run},{"../body/Body":1,"../body/Composite":2,"../body/World":3,"../collision/Detector":4,"../collision/Grid":5,
"../collision/Pair":6,"../collision/Pairs":7,"../collision/Query":8,"../collision/Resolver":9,"../collision/SAT":10,"../constraint/Constraint":11,"../constraint/MouseConstraint":12,"../core/Common":13,"../core/Engine":14,"../core/Events":15,"../core/Matter":16,"../core/Metrics":17,"../core/Mouse":18,"../core/Plugin":19,"../core/Runner":20,"../core/Sleeping":21,"../factory/Bodies":22,"../factory/Composites":23,"../geometry/Axes":24,"../geometry/Bounds":25,"../geometry/Svg":26,"../geometry/Vector":27,"../geometry/Vertices":28,"../render/Render":30,"../render/RenderPixi":31}],30:[function(e,t,n){var o={};t.exports=o;var i=e("../core/Common"),r=e("../body/Composite"),s=e("../geometry/Bounds"),a=e("../core/Events"),l=e("../collision/Grid"),c=e("../geometry/Vector"),u=e("../core/Mouse");!function(){var e,t;"undefined"!=typeof window&&(e=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame||function(e){
window.setTimeout(function(){e(i.now())},1e3/60)},t=window.cancelAnimationFrame||window.mozCancelAnimationFrame||window.webkitCancelAnimationFrame||window.msCancelAnimationFrame),o.create=function(e){var t={controller:o,engine:null,element:null,canvas:null,mouse:null,frameRequestId:null,options:{width:800,height:600,pixelRatio:1,background:"#18181d",wireframeBackground:"#0f0f13",hasBounds:!!e.bounds,enabled:!0,wireframes:!0,showSleeping:!0,showDebug:!1,showBroadphase:!1,showBounds:!1,showVelocity:!1,showCollisions:!1,showSeparations:!1,showAxes:!1,showPositions:!1,showAngleIndicator:!1,showIds:!1,showShadows:!1,showVertexNumbers:!1,showConvexHulls:!1,showInternalEdges:!1,showMousePosition:!1}},r=i.extend(t,e);return r.canvas&&(r.canvas.width=r.options.width||r.canvas.width,r.canvas.height=r.options.height||r.canvas.height),r.mouse=e.mouse,r.engine=e.engine,r.canvas=r.canvas||n(r.options.width,r.options.height),r.context=r.canvas.getContext("2d"),r.textures={},r.bounds=r.bounds||{min:{
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c.y>r.max.y&&(r.max.y=c.y))}var d=r.max.x-r.min.x+2*n.x,p=r.max.y-r.min.y+2*n.y,f=e.canvas.height,m=e.canvas.width,v=m/f,y=d/p,g=1,x=1;y>v?x=y/v:g=v/y,e.options.hasBounds=!0,e.bounds.min.x=r.min.x,e.bounds.max.x=r.min.x+d*g,e.bounds.min.y=r.min.y,e.bounds.max.y=r.min.y+p*x,o&&(e.bounds.min.x+=.5*d-d*g*.5,e.bounds.max.x+=.5*d-d*g*.5,e.bounds.min.y+=.5*p-p*x*.5,e.bounds.max.y+=.5*p-p*x*.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){var t,n=e.engine,i=n.world,d=e.canvas,p=e.context,m=e.options,v=r.allBodies(i),y=r.allConstraints(i),g=m.wireframes?m.wireframeBackground:m.background,x=[],h=[],b={timestamp:n.timing.timestamp};if(a.trigger(e,"beforeRender",b),e.currentBackground!==g&&f(e,g),p.globalCompositeOperation="source-in",p.fillStyle="transparent",p.fillRect(0,0,d.width,d.height),p.globalCompositeOperation="source-over",m.hasBounds){for(t=0;t<v.length;t++){var w=v[t];s.overlaps(w.bounds,e.bounds)&&x.push(w)}for(t=0;t<y.length;t++){var S=y[t],C=S.bodyA,A=S.bodyB,P=S.pointA,B=S.pointB;C&&(P=c.add(C.position,S.pointA)),A&&(B=c.add(A.position,S.pointB)),P&&B&&((s.contains(e.bounds,P)||s.contains(e.bounds,B))&&h.push(S))}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 h=y,x=v,
1!==e.options.pixelRatio&&e.context.setTransform(e.options.pixelRatio,0,0,e.options.pixelRatio,0,0);!m.wireframes||n.enableSleeping&&m.showSleeping?o.bodies(e,x,p):(m.showConvexHulls&&o.bodyConvexHulls(e,x,p),o.bodyWireframes(e,x,p)),m.showBounds&&o.bodyBounds(e,x,p),(m.showAxes||m.showAngleIndicator)&&o.bodyAxes(e,x,p),m.showPositions&&o.bodyPositions(e,x,p),m.showVelocity&&o.bodyVelocity(e,x,p),m.showIds&&o.bodyIds(e,x,p),m.showSeparations&&o.separations(e,n.pairs.list,p),m.showCollisions&&o.collisions(e,n.pairs.list,p),m.showVertexNumbers&&o.vertexNumbers(e,x,p),m.showMousePosition&&o.mousePosition(e,e.mouse,p),o.constraints(h,p),m.showBroadphase&&n.broadphase.controller===l&&o.grid(e,n.broadphase,p),m.showDebug&&o.debug(e,p),m.hasBounds&&o.endViewTransform(e),a.trigger(e,"afterRender",b)},o.debug=function(e,t){var n=t,o=e.engine,i=o.world,s=o.metrics,a=e.options;r.allBodies(i);if(o.timing.timestamp-(e.debugTimestamp||0)>=500){var l=""
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o.bodyPositions=function(e,t,n){var o,i,r,s,a=n,l=(e.engine,e.options);for(a.beginPath(),r=0;r<t.length;r++)if(o=t[r],o.render.visible)for(s=0;s<o.parts.length;s++)i=o.parts[s],a.arc(i.position.x,i.position.y,3,0,2*Math.PI,!1),a.closePath();for(l.wireframes?a.fillStyle="indianred":a.fillStyle="rgba(0,0,0,0.5)",a.fill(),a.beginPath(),r=0;r<t.length;r++)o=t[r],o.render.visible&&(a.arc(o.positionPrev.x,o.positionPrev.y,2,0,2*Math.PI,!1),a.closePath());a.fillStyle="rgba(255,165,0,0.8)",a.fill()},o.bodyVelocity=function(e,t,n){var o=n;o.beginPath();for(var i=0;i<t.length;i++){var r=t[i];r.render.visible&&(o.moveTo(r.position.x,r.position.y),o.lineTo(r.position.x+2*(r.position.x-r.positionPrev.x),r.position.y+2*(r.position.y-r.positionPrev.y)))}o.lineWidth=3,o.strokeStyle="cornflowerblue",o.stroke()},o.bodyIds=function(e,t,n){var o,i,r=n;for(o=0;o<t.length;o++)if(t[o].render.visible){var s=t[o].parts;for(i=s.length>1?1:0;i<s.length;i++){var a=s[i];r.font="12px Arial",
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o.separations=function(e,t,n){var o,i,r,s,a,l=n,c=e.options;for(l.beginPath(),a=0;a<t.length;a++)if(o=t[a],o.isActive){i=o.collision,r=i.bodyA,s=i.bodyB;var u=1;s.isStatic||r.isStatic||(u=.5),s.isStatic&&(u=0),l.moveTo(s.position.x,s.position.y),l.lineTo(s.position.x-i.penetration.x*u,s.position.y-i.penetration.y*u),u=1,s.isStatic||r.isStatic||(u=.5),r.isStatic&&(u=0),l.moveTo(r.position.x,r.position.y),l.lineTo(r.position.x+i.penetration.x*u,r.position.y+i.penetration.y*u)}c.wireframes?l.strokeStyle="rgba(255,165,0,0.5)":l.strokeStyle="orange",l.stroke()},o.grid=function(e,t,n){var o=n;e.options.wireframes?o.strokeStyle="rgba(255,180,0,0.1)":o.strokeStyle="rgba(255,180,0,0.5)",o.beginPath();for(var r=i.keys(t.buckets),s=0;s<r.length;s++){var a=r[s];if(!(t.buckets[a].length<2)){var l=a.split(/C|R/);o.rect(.5+parseInt(l[1],10)*t.bucketWidth,.5+parseInt(l[2],10)*t.bucketHeight,t.bucketWidth,t.bucketHeight)}}o.lineWidth=1,o.stroke()},o.inspector=function(e,t){var n,o=(e.engine,
e.selected),i=e.render,r=i.options;if(r.hasBounds){var s=i.bounds.max.x-i.bounds.min.x,a=i.bounds.max.y-i.bounds.min.y,l=s/i.options.width,c=a/i.options.height;t.scale(1/l,1/c),t.translate(-i.bounds.min.x,-i.bounds.min.y)}for(var u=0;u<o.length;u++){var d=o[u].data;switch(t.translate(.5,.5),t.lineWidth=1,t.strokeStyle="rgba(255,165,0,0.9)",t.setLineDash([1,2]),d.type){case"body":n=d.bounds,t.beginPath(),t.rect(Math.floor(n.min.x-3),Math.floor(n.min.y-3),Math.floor(n.max.x-n.min.x+6),Math.floor(n.max.y-n.min.y+6)),t.closePath(),t.stroke();break;case"constraint":var p=d.pointA;d.bodyA&&(p=d.pointB),t.beginPath(),t.arc(p.x,p.y,10,0,2*Math.PI),t.closePath(),t.stroke()}t.setLineDash([]),t.translate(-.5,-.5)}null!==e.selectStart&&(t.translate(.5,.5),t.lineWidth=1,t.strokeStyle="rgba(255,165,0,0.6)",t.fillStyle="rgba(255,165,0,0.1)",n=e.selectBounds,t.beginPath(),t.rect(Math.floor(n.min.x),Math.floor(n.min.y),Math.floor(n.max.x-n.min.x),Math.floor(n.max.y-n.min.y)),t.closePath(),t.stroke(),
t.fill(),t.translate(-.5,-.5)),r.hasBounds&&t.setTransform(1,0,0,1,0,0)};var n=function(e,t){var n=document.createElement("canvas");return n.width=e,n.height=t,n.oncontextmenu=function(){return!1},n.onselectstart=function(){return!1},n},d=function(e){var t=e.getContext("2d");return(window.devicePixelRatio||1)/(t.webkitBackingStorePixelRatio||t.mozBackingStorePixelRatio||t.msBackingStorePixelRatio||t.oBackingStorePixelRatio||t.backingStorePixelRatio||1)},p=function(e,t){var n=e.textures[t];return n||(n=e.textures[t]=new Image,n.src=t,n)},f=function(e,t){var n=t;/(jpg|gif|png)$/.test(t)&&(n="url("+t+")"),e.canvas.style.background=n,e.canvas.style.backgroundSize="contain",e.currentBackground=t}}()},{"../body/Composite":2,"../collision/Grid":5,"../core/Common":13,"../core/Events":15,"../core/Mouse":18,"../geometry/Bounds":25,"../geometry/Vector":27}],31:[function(e,t,n){var o={};t.exports=o
;var i=e("../geometry/Bounds"),r=e("../body/Composite"),s=e("../core/Common"),a=e("../core/Events"),l=e("../geometry/Vector");!function(){var e,t;"undefined"!=typeof window&&(e=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame||function(e){window.setTimeout(function(){e(s.now())},1e3/60)},t=window.cancelAnimationFrame||window.mozCancelAnimationFrame||window.webkitCancelAnimationFrame||window.msCancelAnimationFrame),o.create=function(e){s.warn("RenderPixi.create: Matter.RenderPixi is deprecated (see docs)");var t={controller:o,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:!1,enabled:!0,wireframes:!0,showSleeping:!0,showDebug:!1,showBroadphase:!1,showBounds:!1,showVelocity:!1,showCollisions:!1,showAxes:!1,showPositions:!1,showAngleIndicator:!1,
showIds:!1,showShadows:!1}},n=s.extend(t,e),i=!n.options.wireframes&&"transparent"===n.options.background;return n.pixiOptions=n.pixiOptions||{view:n.canvas,transparent:i,antialias:!0,backgroundColor:e.background},n.mouse=e.mouse,n.engine=e.engine,n.renderer=n.renderer||new PIXI.WebGLRenderer(n.options.width,n.options.height,n.pixiOptions),n.container=n.container||new PIXI.Container,n.spriteContainer=n.spriteContainer||new PIXI.Container,n.canvas=n.canvas||n.renderer.view,n.bounds=n.bounds||{min:{x:0,y:0},max:{x:n.options.width,y:n.options.height}},a.on(n.engine,"beforeUpdate",function(){o.clear(n)}),n.textures={},n.sprites={},n.primitives={},n.container.addChild(n.spriteContainer),s.isElement(n.element)?n.element.appendChild(n.canvas):s.warn('No "render.element" passed, "render.canvas" was not inserted into document.'),n.canvas.oncontextmenu=function(){return!1},n.canvas.onselectstart=function(){return!1},n},o.run=function(t){!function n(i){t.frameRequestId=e(n),o.world(t)}()},
o.stop=function(e){t(e.frameRequestId)},o.clear=function(e){for(var t=e.container,n=e.spriteContainer;t.children[0];)t.removeChild(t.children[0]);for(;n.children[0];)n.removeChild(n.children[0]);var o=e.sprites["bg-0"];e.textures={},e.sprites={},e.primitives={},e.sprites["bg-0"]=o,o&&t.addChildAt(o,0),e.container.addChild(e.spriteContainer),e.currentBackground=null,t.scale.set(1,1),t.position.set(0,0)},o.setBackground=function(e,t){if(e.currentBackground!==t){var n=t.indexOf&&-1!==t.indexOf("#"),o=e.sprites["bg-0"];if(n){var i=s.colorToNumber(t);e.renderer.backgroundColor=i,o&&e.container.removeChild(o)}else if(!o){var r=u(e,t);o=e.sprites["bg-0"]=new PIXI.Sprite(r),o.position.x=0,o.position.y=0,e.container.addChildAt(o,0)}e.currentBackground=t}},o.world=function(e){var t,n=e.engine,s=n.world,a=e.renderer,c=e.container,u=e.options,d=r.allBodies(s),p=r.allConstraints(s),f=[];u.wireframes?o.setBackground(e,u.wireframeBackground):o.setBackground(e,u.background)
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n?u.moveTo(n.position.x+i.x,n.position.y+i.y):u.moveTo(i.x,i.y),o?u.lineTo(o.position.x+r.x,o.position.y+r.y):u.lineTo(r.x,r.y),u.endFill()},o.body=function(e,t){var o=(e.engine,t.render);if(o.visible)if(o.sprite&&o.sprite.texture){var i="b-"+t.id,r=e.sprites[i],a=e.spriteContainer;r||(r=e.sprites[i]=n(e,t)),-1===s.indexOf(a.children,r)&&a.addChild(r),r.position.x=t.position.x,r.position.y=t.position.y,r.rotation=t.angle,r.scale.x=o.sprite.xScale||1,r.scale.y=o.sprite.yScale||1}else{var l="b-"+t.id,u=e.primitives[l],d=e.container;u||(u=e.primitives[l]=c(e,t),u.initialAngle=t.angle),-1===s.indexOf(d.children,u)&&d.addChild(u),u.position.x=t.position.x,u.position.y=t.position.y,u.rotation=t.angle-u.initialAngle}};var n=function(e,t){var n=t.render,o=n.sprite.texture,i=u(e,o),r=new PIXI.Sprite(i);return r.anchor.x=t.render.sprite.xOffset,r.anchor.y=t.render.sprite.yOffset,r},c=function(e,t){
var n,o=t.render,i=e.options,r=new PIXI.Graphics,a=s.colorToNumber(o.fillStyle),l=s.colorToNumber(o.strokeStyle),c=s.colorToNumber(o.strokeStyle),u=s.colorToNumber("#bbb"),d=s.colorToNumber("#CD5C5C");r.clear();for(var p=t.parts.length>1?1:0;p<t.parts.length;p++){n=t.parts[p],i.wireframes?(r.beginFill(0,0),r.lineStyle(1,u,1)):(r.beginFill(a,1),r.lineStyle(o.lineWidth,l,1)),r.moveTo(n.vertices[0].x-t.position.x,n.vertices[0].y-t.position.y);for(var f=1;f<n.vertices.length;f++)r.lineTo(n.vertices[f].x-t.position.x,n.vertices[f].y-t.position.y);r.lineTo(n.vertices[0].x-t.position.x,n.vertices[0].y-t.position.y),r.endFill(),(i.showAngleIndicator||i.showAxes)&&(r.beginFill(0,0),i.wireframes?r.lineStyle(1,d,1):r.lineStyle(1,c),r.moveTo(n.position.x-t.position.x,n.position.y-t.position.y),r.lineTo((n.vertices[0].x+n.vertices[n.vertices.length-1].x)/2-t.position.x,(n.vertices[0].y+n.vertices[n.vertices.length-1].y)/2-t.position.y),r.endFill())}return r},u=function(e,t){var n=e.textures[t]
;return n||(n=e.textures[t]=PIXI.Texture.fromImage(t)),n}}()},{"../body/Composite":2,"../core/Common":13,"../core/Events":15,"../geometry/Bounds":25,"../geometry/Vector":27}]},{},[29])(29)});