/*!
 * matter-js 0.16.0 by @liabru 2021-01-17
 * http://brm.io/matter-js/
 * License MIT
 */
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e=function(e,t){t=t||{},i.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}),o.rotate(e.vertices,e.angle,e.position),c.rotate(e.axes,e.angle),l.update(e.bounds,e.vertices,e.velocity),i.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?"#14151f":a.choose(["#f19648","#f5d259","#f55a3c","#063e7b","#ececd1"]),s=e.isStatic?"#555":"#ccc",d=e.isStatic&&null===e.render.fillStyle?1:0;e.render.fillStyle=e.render.fillStyle||n,e.render.strokeStyle=e.render.strokeStyle||s,e.render.lineWidth=e.render.lineWidth||d,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)};i.set=function(e,t,n){var o;for(o in"string"==typeof t&&(o=t,(t={})[o]=n),t)if(Object.prototype.hasOwnProperty.call(t,o))switch(n=t[o],o){case"isStatic":i.setStatic(e,n);break;case"isSleeping":s.set(e,n);break;case"mass":i.setMass(e,n);break;case"density":i.setDensity(e,n);break;case"inertia":i.setInertia(e,n);break;case"vertices":i.setVertices(e,n);break;case"position":i.setPosition(e,n);break;case"angle":i.setAngle(e,n);break;case"velocity":i.setVelocity(e,n);break;case"angularVelocity":i.setAngularVelocity(e,n);break;case"parts":i.setParts(e,n);break;case"centre":i.setCentre(e,n);break;default:e[o]=n}},i.setStatic=function(e,t){for(var n=0;n<e.parts.length;n++){var i=e.parts[n];i.isStatic=t,t?(i._original={restitution:i.restitution,friction:i.friction,mass:i.mass,inertia:i.inertia,density:i.density,inverseMass:i.inverseMass,inverseInertia:i.inverseInertia},i.restitution=0,i.friction=1,i.mass=i.inertia=i.density=1/0,i.inverseMass=i.inverseInertia=0,i.positionPrev.x=i.position.x,i.positionPrev.y=i.position.y,i.anglePrev=i.angle,i.angularVelocity=0,i.speed=0,i.angularSpeed=0,i.motion=0):i._original&&(i.restitution=i._original.restitution,i.friction=i._original.friction,i.mass=i._original.mass,i.inertia=i._original.inertia,i.density=i._original.density,i.inverseMass=i._original.inverseMass,i.inverseInertia=i._original.inverseInertia,i._original=null)}},i.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},i.setDensity=function(e,t){i.setMass(e,t*e.area),e.density=t},i.setInertia=function(e,t){e.inertia=t,e.inverseInertia=1/e.inertia},i.setVertices=function(e,t){t[0].body===e?e.vertices=t:e.vertices=o.create(t,e),e.axes=c.fromVertices(e.vertices),e.area=o.area(e.vertices),i.setMass(e,e.density*e.area);var n=o.centre(e.vertices);o.translate(e.vertices,n,-1),i.setInertia(e,i._inertiaScale*o.inertia(e.vertices,e.mass)),o.translate(e.vertices,e.position),l.update(e.bounds,e.vertices,e.velocity)},i.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);o.clockwiseSort(a);var l=o.hull(a),c=o.centre(l);i.setVertices(e,l),o.translate(e.vertices,c)}var d=i._totalProperties(e);e.area=d.area,e.parent=e,e.position.x=d.centre.x,e.position.y=d.centre.y,e.positionPrev.x=d.centre.x,e.positionPrev.y=d.centre.y,i.setMass(e,d.mass),i.setInertia(e,d.inertia),i.setPosition(e,d.centre)}},i.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)},i.setPosition=function(e,t){var n=r.sub(t,e.position);e.positionPrev.x+=n.x,e.positionPrev.y+=n.y;for(var i=0;i<e.parts.length;i++){var s=e.parts[i];s.position.x+=n.x,s.position.y+=n.y,o.translate(s.vertices,n),l.update(s.bounds,s.vertices,e.velocity)}},i.setAngle=function(e,t){var n=t-e.angle;e.anglePrev+=n;for(var i=0;i<e.parts.length;i++){var s=e.parts[i];s.angle+=n,o.rotate(s.vertices,n,e.position),c.rotate(s.axes,n),l.update(s.bounds,s.vertices,e.velocity),i>0&&r.rotateAbout(s.position,n,e.position,s.position)}},i.setVelocity=function(e,t){e.positionPrev.x=e.position.x-t.x,e.positionPrev.y=e.position.y-t.y,e.velocity.x=t.x,e.velocity.y=t.y,e.speed=r.magnitude(e.velocity)},i.setAngularVelocity=function(e,t){e.anglePrev=e.angle-t,e.angularVelocity=t,e.angularSpeed=Math.abs(e.angularVelocity)},i.translate=function(e,t){i.setPosition(e,r.add(e.position,t))},i.rotate=function(e,t,n){if(n){var o=Math.cos(t),r=Math.sin(t),s=e.position.x-n.x,a=e.position.y-n.y;i.setPosition(e,{x:n.x+(s*o-a*r),y:n.y+(s*r+a*o)}),i.setAngle(e,e.angle+t)}else i.setAngle(e,e.angle+t)},i.scale=function(e,t,n,r){var s=0,a=0;r=r||e.position;for(var d=0;d<e.parts.length;d++){var u=e.parts[d];o.scale(u.vertices,t,n,r),u.axes=c.fromVertices(u.vertices),u.area=o.area(u.vertices),i.setMass(u,e.density*u.area),o.translate(u.vertices,{x:-u.position.x,y:-u.position.y}),i.setInertia(u,i._inertiaScale*o.inertia(u.vertices,u.mass)),o.translate(u.vertices,{x:u.position.x,y:u.position.y}),d>0&&(s+=u.area,a+=u.inertia),u.position.x=r.x+(u.position.x-r.x)*t,u.position.y=r.y+(u.position.y-r.y)*n,l.update(u.bounds,u.vertices,e.velocity)}e.parts.length>1&&(e.area=s,e.isStatic||(i.setMass(e,e.density*s),i.setInertia(e,a))),e.circleRadius&&(t===n?e.circleRadius*=t:e.circleRadius=null)},i.update=function(e,t,n,i){var s=Math.pow(t*n*e.timeScale,2),a=1-e.frictionAir*n*e.timeScale,d=e.position.x-e.positionPrev.x,u=e.position.y-e.positionPrev.y;e.velocity.x=d*a*i+e.force.x/e.mass*s,e.velocity.y=u*a*i+e.force.y/e.mass*s,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.angularVelocity=(e.angle-e.anglePrev)*a*i+e.torque/e.inertia*s,e.anglePrev=e.angle,e.angle+=e.angularVelocity,e.speed=r.magnitude(e.velocity),e.angularSpeed=Math.abs(e.angularVelocity);for(var p=0;p<e.parts.length;p++){var f=e.parts[p];o.translate(f.vertices,e.velocity),p>0&&(f.position.x+=e.velocity.x,f.position.y+=e.velocity.y),0!==e.angularVelocity&&(o.rotate(f.vertices,e.angularVelocity,e.position),c.rotate(f.axes,e.angularVelocity),p>0&&r.rotateAbout(f.position,e.angularVelocity,e.position,f.position)),l.update(f.bounds,f.vertices,e.velocity)}},i.applyForce=function(e,t,n){e.force.x+=n.x,e.force.y+=n.y;var i=t.x-e.position.x,o=t.y-e.position.y;e.torque+=i*n.y-o*n.x},i._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 i=e.parts[n],o=i.mass!==1/0?i.mass:1;t.mass+=o,t.area+=i.area,t.inertia+=i.inertia,t.centre=r.add(t.centre,r.mult(i.position,o))}return t.centre=r.div(t.centre,t.mass),t}}()},function(e,t,n){var i={};e.exports=i;var o=n(4);i._motionWakeThreshold=.18,i._motionSleepThreshold=.08,i._minBias=.9,i.update=function(e,t){for(var n=t*t*t,o=0;o<e.length;o++){var r=e[o],s=r.speed*r.speed+r.angularSpeed*r.angularSpeed;if(0===r.force.x&&0===r.force.y){var a=Math.min(r.motion,s),l=Math.max(r.motion,s);r.motion=i._minBias*a+(1-i._minBias)*l,r.sleepThreshold>0&&r.motion<i._motionSleepThreshold*n?(r.sleepCounter+=1,r.sleepCounter>=r.sleepThreshold&&i.set(r,!0)):r.sleepCounter>0&&(r.sleepCounter-=1)}else i.set(r,!1)}},i.afterCollisions=function(e,t){for(var n=t*t*t,o=0;o<e.length;o++){var r=e[o];if(r.isActive){var s=r.collision,a=s.bodyA.parent,l=s.bodyB.parent;if(!(a.isSleeping&&l.isSleeping||a.isStatic||l.isStatic)&&(a.isSleeping||l.isSleeping)){var c=a.isSleeping&&!a.isStatic?a:l,d=c===a?l:a;!c.isStatic&&d.motion>i._motionWakeThreshold*n&&i.set(c,!1)}}}},i.set=function(e,t){var n=e.isSleeping;t?(e.isSleeping=!0,e.sleepCounter=e.sleepThreshold,e.positionImpulse.x=0,e.positionImpulse.y=0,e.positionPrev.x=e.position.x,e.positionPrev.y=e.position.y,e.anglePrev=e.angle,e.speed=0,e.angularSpeed=0,e.motion=0,n||o.trigger(e,"sleepStart")):(e.isSleeping=!1,e.sleepCounter=0,n&&o.trigger(e,"sleepEnd"))}},function(e,t,n){var i={};e.exports=i;var o=n(3),r=n(2),s=n(7),a=n(1),l=n(15),c=n(0);i._warming=.4,i._torqueDampen=1,i._minLength=1e-6,i.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,i=t.bodyB?r.add(t.bodyB.position,t.pointB):t.pointB,o=r.magnitude(r.sub(n,i));t.length=void 0!==t.length?t.length:o,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},i.preSolveAll=function(e){for(var t=0;t<e.length;t+=1){var n=e[t],i=n.constraintImpulse;n.isStatic||0===i.x&&0===i.y&&0===i.angle||(n.position.x+=i.x,n.position.y+=i.y,n.angle+=i.angle)}},i.solveAll=function(e,t){for(var n=0;n<e.length;n+=1){var o=e[n],r=!o.bodyA||o.bodyA&&o.bodyA.isStatic,s=!o.bodyB||o.bodyB&&o.bodyB.isStatic;(r||s)&&i.solve(e[n],t)}for(n=0;n<e.length;n+=1)r=!(o=e[n]).bodyA||o.bodyA&&o.bodyA.isStatic,s=!o.bodyB||o.bodyB&&o.bodyB.isStatic,r||s||i.solve(e[n],t)},i.solve=function(e,t){var n=e.bodyA,o=e.bodyB,s=e.pointA,a=e.pointB;if(n||o){n&&!n.isStatic&&(r.rotate(s,n.angle-e.angleA,s),e.angleA=n.angle),o&&!o.isStatic&&(r.rotate(a,o.angle-e.angleB,a),e.angleB=o.angle);var l=s,c=a;if(n&&(l=r.add(n.position,s)),o&&(c=r.add(o.position,a)),l&&c){var d=r.sub(l,c),u=r.magnitude(d);u<i._minLength&&(u=i._minLength);var p,f,v,m,y,g=(u-e.length)/u,x=e.stiffness<1?e.stiffness*t:e.stiffness,h=r.mult(d,g*x),b=(n?n.inverseMass:0)+(o?o.inverseMass:0),w=b+((n?n.inverseInertia:0)+(o?o.inverseInertia:0));if(e.damping){var S=r.create();v=r.div(d,u),y=r.sub(o&&r.sub(o.position,o.positionPrev)||S,n&&r.sub(n.position,n.positionPrev)||S),m=r.dot(v,y)}n&&!n.isStatic&&(f=n.inverseMass/b,n.constraintImpulse.x-=h.x*f,n.constraintImpulse.y-=h.y*f,n.position.x-=h.x*f,n.position.y-=h.y*f,e.damping&&(n.positionPrev.x-=e.damping*v.x*m*f,n.positionPrev.y-=e.damping*v.y*m*f),p=r.cross(s,h)/w*i._torqueDampen*n.inverseInertia*(1-e.angularStiffness),n.constraintImpulse.angle-=p,n.angle-=p),o&&!o.isStatic&&(f=o.inverseMass/b,o.constraintImpulse.x+=h.x*f,o.constraintImpulse.y+=h.y*f,o.position.x+=h.x*f,o.position.y+=h.y*f,e.damping&&(o.positionPrev.x+=e.damping*v.x*m*f,o.positionPrev.y+=e.damping*v.y*m*f),p=r.cross(a,h)/w*i._torqueDampen*o.inverseInertia*(1-e.angularStiffness),o.constraintImpulse.angle+=p,o.angle+=p)}}},i.postSolveAll=function(e){for(var t=0;t<e.length;t++){var n=e[t],c=n.constraintImpulse;if(!(n.isStatic||0===c.x&&0===c.y&&0===c.angle)){s.set(n,!1);for(var d=0;d<n.parts.length;d++){var u=n.parts[d];o.translate(u.vertices,c),d>0&&(u.position.x+=c.x,u.position.y+=c.y),0!==c.angle&&(o.rotate(u.vertices,c.angle,n.position),l.rotate(u.axes,c.angle),d>0&&r.rotateAbout(u.position,c.angle,n.position,u.position)),a.update(u.bounds,u.vertices,n.velocity)}c.angle*=i._warming,c.x*=i._warming,c.y*=i._warming}}},i.pointAWorld=function(e){return{x:(e.bodyA?e.bodyA.position.x:0)+e.pointA.x,y:(e.bodyA?e.bodyA.position.y:0)+e.pointA.y}},i.pointBWorld=function(e){return{x:(e.bodyB?e.bodyB.position.x:0)+e.pointB.x,y:(e.bodyB?e.bodyB.position.y:0)+e.pointB.y}}},function(e,t,n){var i={};e.exports=i;var o=n(18);i.create=function(e,t){var n=e.bodyA,o=e.bodyB,r=e.parentA,s=e.parentB,a={id:i.id(n,o),bodyA:n,bodyB:o,contacts:{},activeContacts:[],separation:0,isActive:!0,confirmedActive:!0,isSensor:n.isSensor||o.isSensor,timeCreated:t,timeUpdated:t,inverseMass:r.inverseMass+s.inverseMass,friction:Math.min(r.friction,s.friction),frictionStatic:Math.max(r.frictionStatic,s.frictionStatic),restitution:Math.max(r.restitution,s.restitution),slop:Math.max(r.slop,s.slop)};return i.update(a,e,t),a},i.update=function(e,t,n){var r=e.contacts,s=t.supports,a=e.activeContacts,l=t.parentA,c=t.parentB;if(e.collision=t,e.inverseMass=l.inverseMass+c.inverseMass,e.friction=Math.min(l.friction,c.friction),e.frictionStatic=Math.max(l.frictionStatic,c.frictionStatic),e.restitution=Math.max(l.restitution,c.restitution),e.slop=Math.max(l.slop,c.slop),a.length=0,t.collided){for(var d=0;d<s.length;d++){var u=s[d],p=o.id(u),f=r[p];f?a.push(f):a.push(r[p]=o.create(u))}e.separation=t.depth,i.setActive(e,!0,n)}else!0===e.isActive&&i.setActive(e,!1,n)},i.setActive=function(e,t,n){t?(e.isActive=!0,e.timeUpdated=n):(e.isActive=!1,e.activeContacts.length=0)},i.id=function(e,t){return e.id<t.id?"A"+e.id+"B"+t.id:"A"+t.id+"B"+e.id}},function(e,t,n){var i={};e.exports=i;var o=n(0),r=n(5),s=n(1),a=n(4),l=n(11),c=n(2),d=n(14);!function(){var e,t;"undefined"!=typeof window&&(e=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame||function(e){window.setTimeout((function(){e(o.now())}),1e3/60)},t=window.cancelAnimationFrame||window.mozCancelAnimationFrame||window.webkitCancelAnimationFrame||window.msCancelAnimationFrame),i.create=function(e){var t={controller:i,engine:null,element:null,canvas:null,mouse:null,frameRequestId:null,options:{width:800,height:600,pixelRatio:1,background:"#14151f",wireframeBackground:"#14151f",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=o.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:{x:0,y:0},max:{x:r.canvas.width,y:r.canvas.height}},1!==r.options.pixelRatio&&i.setPixelRatio(r,r.options.pixelRatio),o.isElement(r.element)?r.element.appendChild(r.canvas):r.canvas.parentNode||o.log("Render.create: options.element was undefined, render.canvas was created but not appended","warn"),r},i.run=function(t){!function n(o){t.frameRequestId=e(n),i.world(t)}()},i.stop=function(e){t(e.frameRequestId)},i.setPixelRatio=function(e,t){var n=e.options,i=e.canvas;"auto"===t&&(t=u(i)),n.pixelRatio=t,i.setAttribute("data-pixel-ratio",t),i.width=n.width*t,i.height=n.height*t,i.style.width=n.width+"px",i.style.height=n.height+"px"},i.lookAt=function(e,t,n,i){i=void 0===i||i,t=o.isArray(t)?t:[t],n=n||{x:0,y:0};for(var r={min:{x:1/0,y:1/0},max:{x:-1/0,y:-1/0}},s=0;s<t.length;s+=1){var a=t[s],l=a.bounds?a.bounds.min:a.min||a.position||a,c=a.bounds?a.bounds.max:a.max||a.position||a;l&&c&&(l.x<r.min.x&&(r.min.x=l.x),c.x>r.max.x&&(r.max.x=c.x),l.y<r.min.y&&(r.min.y=l.y),c.y>r.max.y&&(r.max.y=c.y))}var u=r.max.x-r.min.x+2*n.x,p=r.max.y-r.min.y+2*n.y,f=e.canvas.height,v=e.canvas.width/f,m=u/p,y=1,g=1;m>v?g=m/v:y=v/m,e.options.hasBounds=!0,e.bounds.min.x=r.min.x,e.bounds.max.x=r.min.x+u*y,e.bounds.min.y=r.min.y,e.bounds.max.y=r.min.y+p*g,i&&(e.bounds.min.x+=.5*u-u*y*.5,e.bounds.max.x+=.5*u-u*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&&(d.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}),d.setOffset(e.mouse,e.bounds.min))},i.startViewTransform=function(e){var t=e.bounds.max.x-e.bounds.min.x,n=e.bounds.max.y-e.bounds.min.y,i=t/e.options.width,o=n/e.options.height;e.context.setTransform(e.options.pixelRatio/i,0,0,e.options.pixelRatio/o,0,0),e.context.translate(-e.bounds.min.x,-e.bounds.min.y)},i.endViewTransform=function(e){e.context.setTransform(e.options.pixelRatio,0,0,e.options.pixelRatio,0,0)},i.world=function(e){var t,n=e.engine,o=n.world,u=e.canvas,p=e.context,v=e.options,m=r.allBodies(o),y=r.allConstraints(o),g=v.wireframes?v.wireframeBackground:v.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,u.width,u.height),p.globalCompositeOperation="source-over",v.hasBounds){for(t=0;t<m.length;t++){var w=m[t];s.overlaps(w.bounds,e.bounds)&&x.push(w)}for(t=0;t<y.length;t++){var S=y[t],A=S.bodyA,P=S.bodyB,C=S.pointA,M=S.pointB;A&&(C=c.add(A.position,S.pointA)),P&&(M=c.add(P.position,S.pointB)),C&&M&&((s.contains(e.bounds,C)||s.contains(e.bounds,M))&&h.push(S))}i.startViewTransform(e),e.mouse&&(d.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}),d.setOffset(e.mouse,e.bounds.min))}else h=y,x=m,1!==e.options.pixelRatio&&e.context.setTransform(e.options.pixelRatio,0,0,e.options.pixelRatio,0,0);!v.wireframes||n.enableSleeping&&v.showSleeping?i.bodies(e,x,p):(v.showConvexHulls&&i.bodyConvexHulls(e,x,p),i.bodyWireframes(e,x,p)),v.showBounds&&i.bodyBounds(e,x,p),(v.showAxes||v.showAngleIndicator)&&i.bodyAxes(e,x,p),v.showPositions&&i.bodyPositions(e,x,p),v.showVelocity&&i.bodyVelocity(e,x,p),v.showIds&&i.bodyIds(e,x,p),v.showSeparations&&i.separations(e,n.pairs.list,p),v.showCollisions&&i.collisions(e,n.pairs.list,p),v.showVertexNumbers&&i.vertexNumbers(e,x,p),v.showMousePosition&&i.mousePosition(e,e.mouse,p),i.constraints(h,p),v.showBroadphase&&n.broadphase.controller===l&&i.grid(e,n.broadphase,p),v.showDebug&&i.debug(e,p),v.hasBounds&&i.endViewTransform(e),a.trigger(e,"afterRender",b)},i.debug=function(e,t){var n=t,i=e.engine,o=i.world,s=i.metrics,a=e.options,c=r.allBodies(o);if(i.timing.timestamp-(e.debugTimestamp||0)>=500){var d="";s.timing&&(d+="fps: "+Math.round(s.timing.fps)+"    "),s.extended&&(s.timing&&(d+="delta: "+s.timing.delta.toFixed(3)+"    ",d+="correction: "+s.timing.correction.toFixed(3)+"    "),d+="bodies: "+c.length+"    ",i.broadphase.controller===l&&(d+="buckets: "+s.buckets+"    "),d+="\n",d+="collisions: "+s.collisions+"    ",d+="pairs: "+i.pairs.list.length+"    ",d+="broad: "+s.broadEff+"    ",d+="mid: "+s.midEff+"    ",d+="narrow: "+s.narrowEff+"    "),e.debugString=d,e.debugTimestamp=i.timing.timestamp}if(e.debugString){n.font="12px Arial",a.wireframes?n.fillStyle="rgba(255,255,255,0.5)":n.fillStyle="rgba(0,0,0,0.5)";for(var u=e.debugString.split("\n"),p=0;p<u.length;p++)n.fillText(u[p],50,50+18*p)}},i.constraints=function(e,t){for(var n=t,i=0;i<e.length;i++){var r=e[i];if(r.render.visible&&r.pointA&&r.pointB){var s,a,l=r.bodyA,d=r.bodyB;if(s=l?c.add(l.position,r.pointA):r.pointA,"pin"===r.render.type)n.beginPath(),n.arc(s.x,s.y,3,0,2*Math.PI),n.closePath();else{if(a=d?c.add(d.position,r.pointB):r.pointB,n.beginPath(),n.moveTo(s.x,s.y),"spring"===r.render.type)for(var u,p=c.sub(a,s),f=c.perp(c.normalise(p)),v=Math.ceil(o.clamp(r.length/5,12,20)),m=1;m<v;m+=1)u=m%2==0?1:-1,n.lineTo(s.x+p.x*(m/v)+f.x*u*4,s.y+p.y*(m/v)+f.y*u*4);n.lineTo(a.x,a.y)}r.render.lineWidth&&(n.lineWidth=r.render.lineWidth,n.strokeStyle=r.render.strokeStyle,n.stroke()),r.render.anchors&&(n.fillStyle=r.render.strokeStyle,n.beginPath(),n.arc(s.x,s.y,3,0,2*Math.PI),n.arc(a.x,a.y,3,0,2*Math.PI),n.closePath(),n.fill())}}},i.bodyShadows=function(e,t,n){for(var i=n,o=(e.engine,0);o<t.length;o++){var r=t[o];if(r.render.visible){if(r.circleRadius)i.beginPath(),i.arc(r.position.x,r.position.y,r.circleRadius,0,2*Math.PI),i.closePath();else{i.beginPath(),i.moveTo(r.vertices[0].x,r.vertices[0].y);for(var s=1;s<r.vertices.length;s++)i.lineTo(r.vertices[s].x,r.vertices[s].y);i.closePath()}var a=r.position.x-.5*e.options.width,l=r.position.y-.2*e.options.height,c=Math.abs(a)+Math.abs(l);i.shadowColor="rgba(0,0,0,0.15)",i.shadowOffsetX=.05*a,i.shadowOffsetY=.05*l,i.shadowBlur=1+12*Math.min(1,c/1e3),i.fill(),i.shadowColor=null,i.shadowOffsetX=null,i.shadowOffsetY=null,i.shadowBlur=null}}},i.bodies=function(e,t,n){var i,o,r,s,a=n,l=(e.engine,e.options),c=l.showInternalEdges||!l.wireframes;for(r=0;r<t.length;r++)if((i=t[r]).render.visible)for(s=i.parts.length>1?1:0;s<i.parts.length;s++)if((o=i.parts[s]).render.visible){if(l.showSleeping&&i.isSleeping?a.globalAlpha=.5*o.render.opacity:1!==o.render.opacity&&(a.globalAlpha=o.render.opacity),o.render.sprite&&o.render.sprite.texture&&!l.wireframes){var d=o.render.sprite,u=p(e,d.texture);a.translate(o.position.x,o.position.y),a.rotate(o.angle),a.drawImage(u,u.width*-d.xOffset*d.xScale,u.height*-d.yOffset*d.yScale,u.width*d.xScale,u.height*d.yScale),a.rotate(-o.angle),a.translate(-o.position.x,-o.position.y)}else{if(o.circleRadius)a.beginPath(),a.arc(o.position.x,o.position.y,o.circleRadius,0,2*Math.PI);else{a.beginPath(),a.moveTo(o.vertices[0].x,o.vertices[0].y);for(var f=1;f<o.vertices.length;f++)!o.vertices[f-1].isInternal||c?a.lineTo(o.vertices[f].x,o.vertices[f].y):a.moveTo(o.vertices[f].x,o.vertices[f].y),o.vertices[f].isInternal&&!c&&a.moveTo(o.vertices[(f+1)%o.vertices.length].x,o.vertices[(f+1)%o.vertices.length].y);a.lineTo(o.vertices[0].x,o.vertices[0].y),a.closePath()}l.wireframes?(a.lineWidth=1,a.strokeStyle="#bbb",a.stroke()):(a.fillStyle=o.render.fillStyle,o.render.lineWidth&&(a.lineWidth=o.render.lineWidth,a.strokeStyle=o.render.strokeStyle,a.stroke()),a.fill())}a.globalAlpha=1}},i.bodyWireframes=function(e,t,n){var i,o,r,s,a,l=n,c=e.options.showInternalEdges;for(l.beginPath(),r=0;r<t.length;r++)if((i=t[r]).render.visible)for(a=i.parts.length>1?1:0;a<i.parts.length;a++){for(o=i.parts[a],l.moveTo(o.vertices[0].x,o.vertices[0].y),s=1;s<o.vertices.length;s++)!o.vertices[s-1].isInternal||c?l.lineTo(o.vertices[s].x,o.vertices[s].y):l.moveTo(o.vertices[s].x,o.vertices[s].y),o.vertices[s].isInternal&&!c&&l.moveTo(o.vertices[(s+1)%o.vertices.length].x,o.vertices[(s+1)%o.vertices.length].y);l.lineTo(o.vertices[0].x,o.vertices[0].y)}l.lineWidth=1,l.strokeStyle="#bbb",l.stroke()},i.bodyConvexHulls=function(e,t,n){var i,o,r,s=n;for(s.beginPath(),o=0;o<t.length;o++)if((i=t[o]).render.visible&&1!==i.parts.length){for(s.moveTo(i.vertices[0].x,i.vertices[0].y),r=1;r<i.vertices.length;r++)s.lineTo(i.vertices[r].x,i.vertices[r].y);s.lineTo(i.vertices[0].x,i.vertices[0].y)}s.lineWidth=1,s.strokeStyle="rgba(255,255,255,0.2)",s.stroke()},i.vertexNumbers=function(e,t,n){var i,o,r,s=n;for(i=0;i<t.length;i++){var a=t[i].parts;for(r=a.length>1?1:0;r<a.length;r++){var l=a[r];for(o=0;o<l.vertices.length;o++)s.fillStyle="rgba(255,255,255,0.2)",s.fillText(i+"_"+o,l.position.x+.8*(l.vertices[o].x-l.position.x),l.position.y+.8*(l.vertices[o].y-l.position.y))}}},i.mousePosition=function(e,t,n){var i=n;i.fillStyle="rgba(255,255,255,0.8)",i.fillText(t.position.x+"  "+t.position.y,t.position.x+5,t.position.y-5)},i.bodyBounds=function(e,t,n){var i=n,o=(e.engine,e.options);i.beginPath();for(var r=0;r<t.length;r++){if(t[r].render.visible)for(var s=t[r].parts,a=s.length>1?1:0;a<s.length;a++){var l=s[a];i.rect(l.bounds.min.x,l.bounds.min.y,l.bounds.max.x-l.bounds.min.x,l.bounds.max.y-l.bounds.min.y)}}o.wireframes?i.strokeStyle="rgba(255,255,255,0.08)":i.strokeStyle="rgba(0,0,0,0.1)",i.lineWidth=1,i.stroke()},i.bodyAxes=function(e,t,n){var i,o,r,s,a=n,l=(e.engine,e.options);for(a.beginPath(),o=0;o<t.length;o++){var c=t[o],d=c.parts;if(c.render.visible)if(l.showAxes)for(r=d.length>1?1:0;r<d.length;r++)for(i=d[r],s=0;s<i.axes.length;s++){var u=i.axes[s];a.moveTo(i.position.x,i.position.y),a.lineTo(i.position.x+20*u.x,i.position.y+20*u.y)}else for(r=d.length>1?1:0;r<d.length;r++)for(i=d[r],s=0;s<i.axes.length;s++)a.moveTo(i.position.x,i.position.y),a.lineTo((i.vertices[0].x+i.vertices[i.vertices.length-1].x)/2,(i.vertices[0].y+i.vertices[i.vertices.length-1].y)/2)}l.wireframes?(a.strokeStyle="indianred",a.lineWidth=1):(a.strokeStyle="rgba(255, 255, 255, 0.4)",a.globalCompositeOperation="overlay",a.lineWidth=2),a.stroke(),a.globalCompositeOperation="source-over"},i.bodyPositions=function(e,t,n){var i,o,r,s,a=n,l=(e.engine,e.options);for(a.beginPath(),r=0;r<t.length;r++)if((i=t[r]).render.visible)for(s=0;s<i.parts.length;s++)o=i.parts[s],a.arc(o.position.x,o.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++)(i=t[r]).render.visible&&(a.arc(i.positionPrev.x,i.positionPrev.y,2,0,2*Math.PI,!1),a.closePath());a.fillStyle="rgba(255,165,0,0.8)",a.fill()},i.bodyVelocity=function(e,t,n){var i=n;i.beginPath();for(var o=0;o<t.length;o++){var r=t[o];r.render.visible&&(i.moveTo(r.position.x,r.position.y),i.lineTo(r.position.x+2*(r.position.x-r.positionPrev.x),r.position.y+2*(r.position.y-r.positionPrev.y)))}i.lineWidth=3,i.strokeStyle="cornflowerblue",i.stroke()},i.bodyIds=function(e,t,n){var i,o,r=n;for(i=0;i<t.length;i++)if(t[i].render.visible){var s=t[i].parts;for(o=s.length>1?1:0;o<s.length;o++){var a=s[o];r.font="12px 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d=i.activeContacts[0].vertex.x,u=i.activeContacts[0].vertex.y;2===i.activeContacts.length&&(d=(i.activeContacts[0].vertex.x+i.activeContacts[1].vertex.x)/2,u=(i.activeContacts[0].vertex.y+i.activeContacts[1].vertex.y)/2),o.bodyB===o.supports[0].body||!0===o.bodyA.isStatic?a.moveTo(d-8*o.normal.x,u-8*o.normal.y):a.moveTo(d+8*o.normal.x,u+8*o.normal.y),a.lineTo(d,u)}l.wireframes?a.strokeStyle="rgba(255,165,0,0.7)":a.strokeStyle="orange",a.lineWidth=1,a.stroke()},i.separations=function(e,t,n){var i,o,r,s,a,l=n,c=e.options;for(l.beginPath(),a=0;a<t.length;a++)if((i=t[a]).isActive){r=(o=i.collision).bodyA;var d=1;(s=o.bodyB).isStatic||r.isStatic||(d=.5),s.isStatic&&(d=0),l.moveTo(s.position.x,s.position.y),l.lineTo(s.position.x-o.penetration.x*d,s.position.y-o.penetration.y*d),d=1,s.isStatic||r.isStatic||(d=.5),r.isStatic&&(d=0),l.moveTo(r.position.x,r.position.y),l.lineTo(r.position.x+o.penetration.x*d,r.position.y+o.penetration.y*d)}c.wireframes?l.strokeStyle="rgba(255,165,0,0.5)":l.strokeStyle="orange",l.stroke()},i.grid=function(e,t,n){var i=n;e.options.wireframes?i.strokeStyle="rgba(255,180,0,0.1)":i.strokeStyle="rgba(255,180,0,0.5)",i.beginPath();for(var r=o.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/);i.rect(.5+parseInt(l[1],10)*t.bucketWidth,.5+parseInt(l[2],10)*t.bucketHeight,t.bucketWidth,t.bucketHeight)}}i.lineWidth=1,i.stroke()},i.inspector=function(e,t){e.engine;var n,i=e.selected,o=e.render,r=o.options;if(r.hasBounds){var s=o.bounds.max.x-o.bounds.min.x,a=o.bounds.max.y-o.bounds.min.y,l=s/o.options.width,c=a/o.options.height;t.scale(1/l,1/c),t.translate(-o.bounds.min.x,-o.bounds.min.y)}for(var d=0;d<i.length;d++){var u=i[d].data;switch(t.translate(.5,.5),t.lineWidth=1,t.strokeStyle="rgba(255,165,0,0.9)",t.setLineDash([1,2]),u.type){case"body":n=u.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 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t=o.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)}},function(e,t,n){var i={};e.exports=i;var o=n(9),r=n(0);i._pairMaxIdleLife=1e3,i.create=function(e){return r.extend({table:{},list:[],collisionStart:[],collisionActive:[],collisionEnd:[]},e)},i.update=function(e,t,n){var i,r,s,a,l=e.list,c=e.table,d=e.collisionStart,u=e.collisionEnd,p=e.collisionActive;for(d.length=0,u.length=0,p.length=0,a=0;a<l.length;a++)l[a].confirmedActive=!1;for(a=0;a<t.length;a++)(i=t[a]).collided&&((s=c[r=o.id(i.bodyA,i.bodyB)])?(s.isActive?p.push(s):d.push(s),o.update(s,i,n),s.confirmedActive=!0):(s=o.create(i,n),c[r]=s,d.push(s),l.push(s)));for(a=0;a<l.length;a++)(s=l[a]).isActive&&!s.confirmedActive&&(o.setActive(s,!1,n),u.push(s))},i.removeOld=function(e,t){var n,o,r,s,a=e.list,l=e.table,c=[];for(s=0;s<a.length;s++)(o=(n=a[s]).collision).bodyA.isSleeping||o.bodyB.isSleeping?n.timeUpdated=t:t-n.timeUpdated>i._pairMaxIdleLife&&c.push(s);for(s=0;s<c.length;s++)delete l[(n=a[r=c[s]-s]).id],a.splice(r,1)},i.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 i={};e.exports=i;var o=n(3),r=n(2),s=n(0),a=n(1);i._restingThresh=4,i._restingThreshTangent=6,i._positionDampen=.9,i._positionWarming=.8,i._frictionNormalMultiplier=5,i.preSolvePosition=function(e){var t,n,i;for(t=0;t<e.length;t++)(n=e[t]).isActive&&(i=n.activeContacts.length,n.collision.parentA.totalContacts+=i,n.collision.parentB.totalContacts+=i)},i.solvePosition=function(e,t){var n,o,s,a,l,c,d,u,p,f=r._temp[0],v=r._temp[1],m=r._temp[2],y=r._temp[3];for(n=0;n<e.length;n++)(o=e[n]).isActive&&!o.isSensor&&(a=(s=o.collision).parentA,l=s.parentB,c=s.normal,d=r.sub(r.add(l.positionImpulse,l.position,f),r.add(a.positionImpulse,r.sub(l.position,s.penetration,v),m),y),o.separation=r.dot(c,d));for(n=0;n<e.length;n++)(o=e[n]).isActive&&!o.isSensor&&(a=(s=o.collision).parentA,l=s.parentB,c=s.normal,p=(o.separation-o.slop)*t,(a.isStatic||l.isStatic)&&(p*=2),a.isStatic||a.isSleeping||(u=i._positionDampen/a.totalContacts,a.positionImpulse.x+=c.x*p*u,a.positionImpulse.y+=c.y*p*u),l.isStatic||l.isSleeping||(u=i._positionDampen/l.totalContacts,l.positionImpulse.x-=c.x*p*u,l.positionImpulse.y-=c.y*p*u))},i.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];o.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*=i._positionWarming,n.positionImpulse.y*=i._positionWarming)}}},i.preSolveVelocity=function(e){var t,n,i,o,s,a,l,c,d,u,p,f,v,m,y=r._temp[0],g=r._temp[1];for(t=0;t<e.length;t++)if((i=e[t]).isActive&&!i.isSensor)for(o=i.activeContacts,a=(s=i.collision).parentA,l=s.parentB,c=s.normal,d=s.tangent,n=0;n<o.length;n++)p=(u=o[n]).vertex,f=u.normalImpulse,v=u.tangentImpulse,0===f&&0===v||(y.x=c.x*f+d.x*v,y.y=c.y*f+d.y*v,a.isStatic||a.isSleeping||(m=r.sub(p,a.position,g),a.positionPrev.x+=y.x*a.inverseMass,a.positionPrev.y+=y.y*a.inverseMass,a.anglePrev+=r.cross(m,y)*a.inverseInertia),l.isStatic||l.isSleeping||(m=r.sub(p,l.position,g),l.positionPrev.x-=y.x*l.inverseMass,l.positionPrev.y-=y.y*l.inverseMass,l.anglePrev-=r.cross(m,y)*l.inverseInertia))},i.solveVelocity=function(e,t){for(var n=t*t,o=r._temp[0],a=r._temp[1],l=r._temp[2],c=r._temp[3],d=r._temp[4],u=r._temp[5],p=0;p<e.length;p++){var f=e[p];if(f.isActive&&!f.isSensor){var v=f.collision,m=v.parentA,y=v.parentB,g=v.normal,x=v.tangent,h=f.activeContacts,b=1/h.length;m.velocity.x=m.position.x-m.positionPrev.x,m.velocity.y=m.position.y-m.positionPrev.y,y.velocity.x=y.position.x-y.positionPrev.x,y.velocity.y=y.position.y-y.positionPrev.y,m.angularVelocity=m.angle-m.anglePrev,y.angularVelocity=y.angle-y.anglePrev;for(var w=0;w<h.length;w++){var S=h[w],A=S.vertex,P=r.sub(A,m.position,a),C=r.sub(A,y.position,l),M=r.add(m.velocity,r.mult(r.perp(P),m.angularVelocity),c),k=r.add(y.velocity,r.mult(r.perp(C),y.angularVelocity),d),B=r.sub(M,k,u),I=r.dot(g,B),_=r.dot(x,B),T=Math.abs(_),R=s.sign(_),L=(1+f.restitution)*I,O=s.clamp(f.separation+I,0,1)*i._frictionNormalMultiplier,V=_,E=1/0;T>f.friction*f.frictionStatic*O*n&&(E=T,V=s.clamp(f.friction*R*n,-E,E));var F=r.cross(P,g),W=r.cross(C,g),q=b/(m.inverseMass+y.inverseMass+m.inverseInertia*F*F+y.inverseInertia*W*W);if(L*=q,V*=q,I<0&&I*I>i._restingThresh*n)S.normalImpulse=0;else{var j=S.normalImpulse;S.normalImpulse=Math.min(S.normalImpulse+L,0),L=S.normalImpulse-j}if(_*_>i._restingThreshTangent*n)S.tangentImpulse=0;else{var D=S.tangentImpulse;S.tangentImpulse=s.clamp(S.tangentImpulse+V,-E,E),V=S.tangentImpulse-D}o.x=g.x*L+x.x*V,o.y=g.y*L+x.y*V,m.isStatic||m.isSleeping||(m.positionPrev.x+=o.x*m.inverseMass,m.positionPrev.y+=o.y*m.inverseMass,m.anglePrev+=r.cross(P,o)*m.inverseInertia),y.isStatic||y.isSleeping||(y.positionPrev.x-=o.x*y.inverseMass,y.positionPrev.y-=o.y*y.inverseMass,y.anglePrev-=r.cross(C,o)*y.inverseInertia)}}}}},function(e,t,n){var i={};e.exports=i;var o=n(19),r=n(7),s=n(21),a=n(10),l=n(20),c=n(23),d=n(11),u=n(4),p=n(5),f=n(8),v=n(0),m=n(6);i.create=function(e,t){t=(t=v.isElement(e)?t:e)||{},((e=v.isElement(e)?e:null)||t.render)&&v.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:d}},i=v.extend(n,t);if(e||i.render){var r={element:e,controller:a};i.render=v.extend(r,i.render)}return i.render&&i.render.controller&&(i.render=i.render.controller.create(i.render)),i.render&&(i.render.engine=i),i.world=t.world||o.create(i.world),i.pairs=l.create(),i.broadphase=i.broadphase.controller.create(i.broadphase),i.metrics=i.metrics||{extended:!1},i.metrics=c.create(i.metrics),i},i.update=function(e,t,n){t=t||1e3/60,n=n||1;var o,a=e.world,d=e.timing,v=e.broadphase,m=[];d.timestamp+=t*d.timeScale;var y={timestamp:d.timestamp};u.trigger(e,"beforeUpdate",y);var g=p.allBodies(a),x=p.allConstraints(a);for(c.reset(e.metrics),e.enableSleeping&&r.update(g,d.timeScale),i._bodiesApplyGravity(g,a.gravity),i._bodiesUpdate(g,t,d.timeScale,n,a.bounds),f.preSolveAll(g),o=0;o<e.constraintIterations;o++)f.solveAll(x,d.timeScale);f.postSolveAll(g),v.controller?(a.isModified&&v.controller.clear(v),v.controller.update(v,g,e,a.isModified),m=v.pairsList):m=g,a.isModified&&p.setModified(a,!1,!1,!0);var h=v.detector(m,e),b=e.pairs,w=d.timestamp;for(l.update(b,h,w),l.removeOld(b,w),e.enableSleeping&&r.afterCollisions(b.list,d.timeScale),b.collisionStart.length>0&&u.trigger(e,"collisionStart",{pairs:b.collisionStart}),s.preSolvePosition(b.list),o=0;o<e.positionIterations;o++)s.solvePosition(b.list,d.timeScale);for(s.postSolvePosition(g),f.preSolveAll(g),o=0;o<e.constraintIterations;o++)f.solveAll(x,d.timeScale);for(f.postSolveAll(g),s.preSolveVelocity(b.list),o=0;o<e.velocityIterations;o++)s.solveVelocity(b.list,d.timeScale);return b.collisionActive.length>0&&u.trigger(e,"collisionActive",{pairs:b.collisionActive}),b.collisionEnd.length>0&&u.trigger(e,"collisionEnd",{pairs:b.collisionEnd}),c.update(e.metrics,e),i._bodiesClearForces(g),u.trigger(e,"afterUpdate",y),e},i.merge=function(e,t){if(v.extend(e,t),t.world){e.world=t.world,i.clear(e);for(var n=p.allBodies(e.world),o=0;o<n.length;o++){var s=n[o];r.set(s,!1),s.id=v.nextId()}}},i.clear=function(e){var t=e.world;l.clear(e.pairs);var n=e.broadphase;if(n.controller){var i=p.allBodies(t);n.controller.clear(n),n.controller.update(n,i,e,!0)}},i._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}},i._bodiesApplyGravity=function(e,t){var n=void 0!==t.scale?t.scale:.001;if((0!==t.x||0!==t.y)&&0!==n)for(var i=0;i<e.length;i++){var o=e[i];o.isStatic||o.isSleeping||(o.force.y+=o.mass*t.y*n,o.force.x+=o.mass*t.x*n)}},i._bodiesUpdate=function(e,t,n,i,o){for(var r=0;r<e.length;r++){var s=e[r];s.isStatic||s.isSleeping||m.update(s,t,n,i)}}},function(e,t,n){var i={};e.exports=i;var o=n(5),r=n(0);i.create=function(e){return r.extend({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},!1,e)},i.reset=function(e){e.extended&&(e.narrowDetections=0,e.narrowphaseTests=0,e.narrowReuse=0,e.narrowReuseCount=0,e.midphaseTests=0,e.broadphaseTests=0,e.narrowEff=0,e.midEff=0,e.broadEff=0,e.collisions=0,e.buckets=0,e.pairs=0,e.bodies=0)},i.update=function(e,t){if(e.extended){var n=t.world,i=o.allBodies(n);e.collisions=e.narrowDetections,e.pairs=t.pairs.list.length,e.bodies=i.length,e.midEff=(e.narrowDetections/(e.midphaseTests||1)).toFixed(2),e.narrowEff=(e.narrowDetections/(e.narrowphaseTests||1)).toFixed(2),e.broadEff=(1-e.broadphaseTests/(i.length||1)).toFixed(2),e.narrowReuse=(e.narrowReuseCount/(e.narrowphaseTests||1)).toFixed(2)}}},function(e,t,n){var i=e.exports=n(25);i.Body=n(6),i.Composite=n(5),i.World=n(19),i.Contact=n(18),i.Detector=n(12),i.Grid=n(11),i.Pairs=n(20),i.Pair=n(9),i.Query=n(26),i.Resolver=n(21),i.SAT=n(13),i.Constraint=n(8),i.MouseConstraint=n(28),i.Common=n(0),i.Engine=n(22),i.Events=n(4),i.Mouse=n(14),i.Runner=n(29),i.Sleeping=n(7),i.Plugin=n(17),i.Metrics=n(23),i.Bodies=n(16),i.Composites=n(30),i.Axes=n(15),i.Bounds=n(1),i.Svg=n(31),i.Vector=n(2),i.Vertices=n(3),i.Render=n(10),i.RenderPixi=n(32),i.World.add=i.Composite.add,i.World.remove=i.Composite.remove,i.World.addComposite=i.Composite.addComposite,i.World.addBody=i.Composite.addBody,i.World.addConstraint=i.Composite.addConstraint,i.World.clear=i.Composite.clear,i.Engine.run=i.Runner.run},function(e,t,n){var i={};e.exports=i;var o=n(17),r=n(0);i.name="matter-js",i.version="0.16.0",i.uses=[],i.used=[],i.use=function(){o.use(i,Array.prototype.slice.call(arguments))},i.before=function(e,t){return e=e.replace(/^Matter./,""),r.chainPathBefore(i,e,t)},i.after=function(e,t){return e=e.replace(/^Matter./,""),r.chainPathAfter(i,e,t)}},function(e,t,n){var i={};e.exports=i;var o=n(2),r=n(13),s=n(1),a=n(16),l=n(3);i.collides=function(e,t){for(var n=[],i=0;i<t.length;i++){var o=t[i];if(s.overlaps(o.bounds,e.bounds))for(var a=1===o.parts.length?0:1;a<o.parts.length;a++){var l=o.parts[a];if(s.overlaps(l.bounds,e.bounds)){var c=r.collides(l,e);if(c.collided){n.push(c);break}}}}return n},i.ray=function(e,t,n,r){r=r||1e-100;for(var s=o.angle(t,n),l=o.magnitude(o.sub(t,n)),c=.5*(n.x+t.x),d=.5*(n.y+t.y),u=a.rectangle(c,d,l,r,{angle:s}),p=i.collides(u,e),f=0;f<p.length;f+=1){var v=p[f];v.body=v.bodyB=v.bodyA}return p},i.region=function(e,t,n){for(var i=[],o=0;o<e.length;o++){var r=e[o],a=s.overlaps(r.bounds,t);(a&&!n||!a&&n)&&i.push(r)}return i},i.point=function(e,t){for(var n=[],i=0;i<e.length;i++){var o=e[i];if(s.contains(o.bounds,t))for(var r=1===o.parts.length?0:1;r<o.parts.length;r++){var a=o.parts[r];if(s.contains(a.bounds,t)&&l.contains(a.vertices,t)){n.push(o);break}}}return n}},function(t,n){t.exports=e},function(e,t,n){var i={};e.exports=i;var o=n(3),r=n(7),s=n(14),a=n(4),l=n(12),c=n(8),d=n(5),u=n(0),p=n(1);i.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(),u.warn("MouseConstraint.create: options.mouse was undefined, options.element was undefined, may not function as expected")));var o={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=u.extend(o,t);return a.on(e,"beforeUpdate",(function(){var t=d.allBodies(e.world);i.update(r,t),i._triggerEvents(r)})),r},i.update=function(e,t){var n=e.mouse,i=e.constraint,s=e.body;if(0===n.button){if(i.bodyB)r.set(i.bodyB,!1),i.pointA=n.position;else for(var c=0;c<t.length;c++)if(s=t[c],p.contains(s.bounds,n.position)&&l.canCollide(s.collisionFilter,e.collisionFilter))for(var d=s.parts.length>1?1:0;d<s.parts.length;d++){var u=s.parts[d];if(o.contains(u.vertices,n.position)){i.pointA=n.position,i.bodyB=e.body=s,i.pointB={x:n.position.x-s.position.x,y:n.position.y-s.position.y},i.angleB=s.angle,r.set(s,!1),a.trigger(e,"startdrag",{mouse:n,body:s});break}}}else i.bodyB=e.body=null,i.pointB=null,s&&a.trigger(e,"enddrag",{mouse:n,body:s})},i._triggerEvents=function(e){var t=e.mouse,n=t.sourceEvents;n.mousemove&&a.trigger(e,"mousemove",{mouse:t}),n.mousedown&&a.trigger(e,"mousedown",{mouse:t}),n.mouseup&&a.trigger(e,"mouseup",{mouse:t}),s.clearSourceEvents(t)}},function(e,t,n){var i={};e.exports=i;var o=n(4),r=n(22),s=n(0);!function(){var e,t,n;("undefined"!=typeof window&&(e=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.msRequestAnimationFrame,t=window.cancelAnimationFrame||window.mozCancelAnimationFrame||window.webkitCancelAnimationFrame||window.msCancelAnimationFrame),e)||(e=function(e){n=setTimeout((function(){e(s.now())}),1e3/60)},t=function(){clearTimeout(n)});i.create=function(e){var t=s.extend({fps:60,correction:1,deltaSampleSize:60,counterTimestamp:0,frameCounter:0,deltaHistory:[],timePrev:null,timeScalePrev:1,frameRequestId:null,isFixed:!1,enabled:!0},e);return t.delta=t.delta||1e3/t.fps,t.deltaMin=t.deltaMin||1e3/t.fps,t.deltaMax=t.deltaMax||1e3/(.5*t.fps),t.fps=1e3/t.delta,t},i.run=function(t,n){return void 0!==t.positionIterations&&(n=t,t=i.create()),function o(r){t.frameRequestId=e(o),r&&t.enabled&&i.tick(t,n,r)}(),t},i.tick=function(e,t,n){var i,s=t.timing,a=1,l={timestamp:s.timestamp};o.trigger(e,"beforeTick",l),o.trigger(t,"beforeTick",l),e.isFixed?i=e.delta:(i=n-e.timePrev||e.delta,e.timePrev=n,e.deltaHistory.push(i),e.deltaHistory=e.deltaHistory.slice(-e.deltaSampleSize),a=(i=(i=(i=Math.min.apply(null,e.deltaHistory))<e.deltaMin?e.deltaMin:i)>e.deltaMax?e.deltaMax:i)/e.delta,e.delta=i),0!==e.timeScalePrev&&(a*=s.timeScale/e.timeScalePrev),0===s.timeScale&&(a=0),e.timeScalePrev=s.timeScale,e.correction=a,e.frameCounter+=1,n-e.counterTimestamp>=1e3&&(e.fps=e.frameCounter*((n-e.counterTimestamp)/1e3),e.counterTimestamp=n,e.frameCounter=0),o.trigger(e,"tick",l),o.trigger(t,"tick",l),t.world.isModified&&t.render&&t.render.controller&&t.render.controller.clear&&t.render.controller.clear(t.render),o.trigger(e,"beforeUpdate",l),r.update(t,i,a),o.trigger(e,"afterUpdate",l),t.render&&t.render.controller&&(o.trigger(e,"beforeRender",l),o.trigger(t,"beforeRender",l),t.render.controller.world(t.render),o.trigger(e,"afterRender",l),o.trigger(t,"afterRender",l)),o.trigger(e,"afterTick",l),o.trigger(t,"afterTick",l)},i.stop=function(e){t(e.frameRequestId)},i.start=function(e,t){i.run(e,t)}}()},function(e,t,n){var i={};e.exports=i;var o=n(5),r=n(8),s=n(0),a=n(6),l=n(16);i.stack=function(e,t,n,i,r,s,l){for(var c,d=o.create({label:"Stack"}),u=e,p=t,f=0,v=0;v<i;v++){for(var m=0,y=0;y<n;y++){var g=l(u,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),a.translate(g,{x:.5*h,y:.5*x}),u=g.bounds.max.x+r,o.addBody(d,g),c=g,f+=1}else u+=r}p+=m+s,u=e}return d},i.chain=function(e,t,n,i,a,l){for(var c=e.bodies,d=1;d<c.length;d++){var u=c[d-1],p=c[d],f=u.bounds.max.y-u.bounds.min.y,v=u.bounds.max.x-u.bounds.min.x,m=p.bounds.max.y-p.bounds.min.y,y={bodyA:u,pointA:{x:v*t,y:f*n},bodyB:p,pointB:{x:(p.bounds.max.x-p.bounds.min.x)*i,y:m*a}},g=s.extend(y,l);o.addConstraint(e,r.create(g))}return e.label+=" Chain",e},i.mesh=function(e,t,n,i,a){var 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i={};e.exports=i;n(1);var o=n(0);i.pathToVertices=function(e,t){"undefined"==typeof window||"SVGPathSeg"in window||o.warn("Svg.pathToVertices: SVGPathSeg not defined, a polyfill is required.");var n,r,s,a,l,c,d,u,p,f,v,m=[],y=0,g=0,x=0;t=t||15;var h=function(e,t,n){var i=n%2==1&&n>1;if(!p||e!=p.x||t!=p.y){p&&i?(f=p.x,v=p.y):(f=0,v=0);var o={x:f+e,y:v+t};!i&&p||(p=o),m.push(o),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(i._svgPathToAbsolute(e),s=e.getTotalLength(),c=[],n=0;n<e.pathSegList.numberOfItems;n+=1)c.push(e.pathSegList.getItem(n));for(d=c.concat();y<s;){if((l=c[e.getPathSegAtLength(y)])!=u){for(;d.length&&d[0]!=l;)b(d.shift());u=l}switch(l.pathSegTypeAsLetter.toUpperCase()){case"C":case"T":case"S":case"Q":case"A":a=e.getPointAtLength(y),h(a.x,a.y,0)}y+=t}for(n=0,r=d.length;n<r;++n)b(d[n]);return 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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),i.create=function(e){s.warn("RenderPixi.create: Matter.RenderPixi is deprecated (see docs)");var t={controller:i,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),o=!n.options.wireframes&&"transparent"===n.options.background;return n.pixiOptions=n.pixiOptions||{view:n.canvas,transparent:o,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(){i.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},i.run=function(t){!function n(o){t.frameRequestId=e(n),i.world(t)}()},i.stop=function(e){t(e.frameRequestId)},i.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 i=e.sprites["bg-0"];e.textures={},e.sprites={},e.primitives={},e.sprites["bg-0"]=i,i&&t.addChildAt(i,0),e.container.addChild(e.spriteContainer),e.currentBackground=null,t.scale.set(1,1),t.position.set(0,0)},i.setBackground=function(e,t){if(e.currentBackground!==t){var n=t.indexOf&&-1!==t.indexOf("#"),i=e.sprites["bg-0"];if(n){var o=s.colorToNumber(t);e.renderer.backgroundColor=o,i&&e.container.removeChild(i)}else if(!i){var r=d(e,t);(i=e.sprites["bg-0"]=new PIXI.Sprite(r)).position.x=0,i.position.y=0,e.container.addChildAt(i,0)}e.currentBackground=t}},i.world=function(e){var t,n=e.engine.world,s=e.renderer,a=e.container,c=e.options,d=r.allBodies(n),u=r.allConstraints(n),p=[];c.wireframes?i.setBackground(e,c.wireframeBackground):i.setBackground(e,c.background);var f=e.bounds.max.x-e.bounds.min.x,v=e.bounds.max.y-e.bounds.min.y,m=f/e.options.width,y=v/e.options.height;if(c.hasBounds){for(t=0;t<d.length;t++){var g=d[t];g.render.sprite.visible=o.overlaps(g.bounds,e.bounds)}for(t=0;t<u.length;t++){var x=u[t],h=x.bodyA,b=x.bodyB,w=x.pointA,S=x.pointB;h&&(w=l.add(h.position,x.pointA)),b&&(S=l.add(b.position,x.pointB)),w&&S&&((o.contains(e.bounds,w)||o.contains(e.bounds,S))&&p.push(x))}a.scale.set(1/m,1/y),a.position.set(-e.bounds.min.x*(1/m),-e.bounds.min.y*(1/y))}else p=u;for(t=0;t<d.length;t++)i.body(e,d[t]);for(t=0;t<p.length;t++)i.constraint(e,p[t]);s.render(a)},i.constraint=function(e,t){e.engine;var n=t.bodyA,i=t.bodyB,o=t.pointA,r=t.pointB,a=e.container,l=t.render,c="c-"+t.id,d=e.primitives[c];d||(d=e.primitives[c]=new PIXI.Graphics),l.visible&&t.pointA&&t.pointB?(-1===s.indexOf(a.children,d)&&a.addChild(d),d.clear(),d.beginFill(0,0),d.lineStyle(l.lineWidth,s.colorToNumber(l.strokeStyle),1),n?d.moveTo(n.position.x+o.x,n.position.y+o.y):d.moveTo(o.x,o.y),i?d.lineTo(i.position.x+r.x,i.position.y+r.y):d.lineTo(r.x,r.y),d.endFill()):d.clear()},i.body=function(e,t){e.engine;var i=t.render;if(i.visible)if(i.sprite&&i.sprite.texture){var o="b-"+t.id,r=e.sprites[o],a=e.spriteContainer;r||(r=e.sprites[o]=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=i.sprite.xScale||1,r.scale.y=i.sprite.yScale||1}else{var l="b-"+t.id,d=e.primitives[l],u=e.container;d||((d=e.primitives[l]=c(e,t)).initialAngle=t.angle),-1===s.indexOf(u.children,d)&&u.addChild(d),d.position.x=t.position.x,d.position.y=t.position.y,d.rotation=t.angle-d.initialAngle}};var n=function(e,t){var n=t.render.sprite.texture,i=d(e,n),o=new PIXI.Sprite(i);return o.anchor.x=t.render.sprite.xOffset,o.anchor.y=t.render.sprite.yOffset,o},c=function(e,t){var n,i=t.render,o=e.options,r=new PIXI.Graphics,a=s.colorToNumber(i.fillStyle),l=s.colorToNumber(i.strokeStyle),c=s.colorToNumber(i.strokeStyle),d=s.colorToNumber("#bbb"),u=s.colorToNumber("#CD5C5C");r.clear();for(var p=t.parts.length>1?1:0;p<t.parts.length;p++){n=t.parts[p],o.wireframes?(r.beginFill(0,0),r.lineStyle(1,d,1)):(r.beginFill(a,1),r.lineStyle(i.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(),(o.showAngleIndicator||o.showAxes)&&(r.beginFill(0,0),o.wireframes?r.lineStyle(1,u,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},d=function(e,t){var n=e.textures[t];return n||(n=e.textures[t]=PIXI.Texture.fromImage(t)),n}}()}])}));