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p2.min.js
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/**
* The MIT License (MIT)
*
* Copyright (c) 2013 p2.js authors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
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window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/../node_modules/poly-decomp/src/Polygon.js","/../node_modules/poly-decomp/src")},{"./Line":5,"./Point":6,"./Scalar":8,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],8:[function(a,b){(function(){function a(){}b.exports=a,a.eq=function(a,b,c){return c=c||0,Math.abs(a-b)<c}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/../node_modules/poly-decomp/src/Scalar.js","/../node_modules/poly-decomp/src")},{"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],9:[function(a,b){(function(){b.exports={Polygon:a("./Polygon"),Point:a("./Point")}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/../node_modules/poly-decomp/src/index.js","/../node_modules/poly-decomp/src")},{"./Point":6,"./Polygon":7,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],10:[function(a,b){b.exports={name:"p2",version:"0.6.0",description:"A JavaScript 2D physics engine.",author:"Stefan Hedman <[email protected]> (http://steffe.se)",keywords:["p2.js","p2","physics","engine","2d"],main:"./src/p2.js",engines:{node:"*"},repository:{type:"git",url:"https://github.com/schteppe/p2.js.git"},bugs:{url:"https://github.com/schteppe/p2.js/issues"},licenses:[{type:"MIT"}],devDependencies:{grunt:"~0.4.0","grunt-contrib-jshint":"~0.9.2","grunt-contrib-nodeunit":"~0.1.2","grunt-contrib-uglify":"~0.4.0","grunt-contrib-watch":"~0.5.0","grunt-browserify":"~2.0.1","grunt-contrib-concat":"^0.4.0"},dependencies:{"poly-decomp":"0.1.0"}}},{}],11:[function(a,b){(function(){function c(a){this.lowerBound=d.create(),a&&a.lowerBound&&d.copy(this.lowerBound,a.lowerBound),this.upperBound=d.create(),a&&a.upperBound&&d.copy(this.upperBound,a.upperBound)}{var d=a("../math/vec2");a("../utils/Utils")}b.exports=c;var e=d.create();c.prototype.setFromPoints=function(a,b,c,f){var g=this.lowerBound,h=this.upperBound;"number"!=typeof c&&(c=0),0!==c?d.rotate(g,a[0],c):d.copy(g,a[0]),d.copy(h,g);for(var i=Math.cos(c),j=Math.sin(c),k=1;k<a.length;k++){var l=a[k];if(0!==c){var m=l[0],n=l[1];e[0]=i*m-j*n,e[1]=j*m+i*n,l=e}for(var o=0;2>o;o++)l[o]>h[o]&&(h[o]=l[o]),l[o]<g[o]&&(g[o]=l[o])}b&&(d.add(this.lowerBound,this.lowerBound,b),d.add(this.upperBound,this.upperBound,b)),f&&(this.lowerBound[0]-=f,this.lowerBound[1]-=f,this.upperBound[0]+=f,this.upperBound[1]+=f)},c.prototype.copy=function(a){d.copy(this.lowerBound,a.lowerBound),d.copy(this.upperBound,a.upperBound)
},c.prototype.extend=function(a){for(var b=2;b--;){var c=a.lowerBound[b];this.lowerBound[b]>c&&(this.lowerBound[b]=c);var d=a.upperBound[b];this.upperBound[b]<d&&(this.upperBound[b]=d)}},c.prototype.overlaps=function(a){var b=this.lowerBound,c=this.upperBound,d=a.lowerBound,e=a.upperBound;return(d[0]<=c[0]&&c[0]<=e[0]||b[0]<=e[0]&&e[0]<=c[0])&&(d[1]<=c[1]&&c[1]<=e[1]||b[1]<=e[1]&&e[1]<=c[1])}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/collision/AABB.js","/collision")},{"../math/vec2":33,"../utils/Utils":52,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],12:[function(a,b){(function(){function c(a){this.type=a,this.result=[],this.world=null,this.boundingVolumeType=c.AABB}var d=a("../math/vec2"),e=a("../objects/Body");b.exports=c,c.AABB=1,c.BOUNDING_CIRCLE=2,c.prototype.setWorld=function(a){this.world=a},c.prototype.getCollisionPairs=function(){throw new Error("getCollisionPairs must be implemented in a subclass!")};var f=d.create();c.boundingRadiusCheck=function(a,b){d.sub(f,a.position,b.position);var c=d.squaredLength(f),e=a.boundingRadius+b.boundingRadius;return e*e>=c},c.aabbCheck=function(a,b){return a.aabbNeedsUpdate&&a.updateAABB(),b.aabbNeedsUpdate&&b.updateAABB(),a.aabb.overlaps(b.aabb)},c.prototype.boundingVolumeCheck=function(a,b){var d;switch(this.boundingVolumeType){case c.BOUNDING_CIRCLE:d=c.boundingRadiusCheck(a,b);break;case c.AABB:d=c.aabbCheck(a,b);break;default:throw new Error("Bounding volume type not recognized: "+this.boundingVolumeType)}return d},c.canCollide=function(a,b){return a.type===e.STATIC&&b.type===e.STATIC?!1:a.type===e.KINEMATIC&&b.type===e.STATIC||a.type===e.STATIC&&b.type===e.KINEMATIC?!1:a.type===e.KINEMATIC&&b.type===e.KINEMATIC?!1:a.sleepState===e.SLEEPING&&b.sleepState===e.SLEEPING?!1:a.sleepState===e.SLEEPING&&b.type===e.STATIC||b.sleepState===e.SLEEPING&&a.type===e.STATIC?!1:!0},c.NAIVE=1,c.SAP=2}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/collision/Broadphase.js","/collision")},{"../math/vec2":33,"../objects/Body":34,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],13:[function(a,b){(function(){function c(a){d.apply(this),a=e.defaults(a,{xmin:-100,xmax:100,ymin:-100,ymax:100,nx:10,ny:10}),this.xmin=a.xmin,this.ymin=a.ymin,this.xmax=a.xmax,this.ymax=a.ymax,this.nx=a.nx,this.ny=a.ny,this.binsizeX=(this.xmax-this.xmin)/this.nx,this.binsizeY=(this.ymax-this.ymin)/this.ny}var d=(a("../shapes/Circle"),a("../shapes/Plane"),a("../shapes/Particle"),a("../collision/Broadphase")),e=(a("../math/vec2"),a("../utils/Utils"));b.exports=c,c.prototype=new d,c.prototype.getCollisionPairs=function(a){for(var b=[],c=a.bodies,e=c.length,f=(this.binsizeX,this.binsizeY,this.nx),g=this.ny,h=this.xmin,i=this.ymin,j=this.xmax,k=this.ymax,l=[],m=f*g,n=0;m>n;n++)l.push([]);for(var o=f/(j-h),p=g/(k-i),n=0;n!==e;n++)for(var q=c[n],r=q.aabb,s=Math.max(r.lowerBound[0],h),t=Math.max(r.lowerBound[1],i),u=Math.min(r.upperBound[0],j),v=Math.min(r.upperBound[1],k),w=Math.floor(o*(s-h)),x=Math.floor(p*(t-i)),y=Math.floor(o*(u-h)),z=Math.floor(p*(v-i)),A=w;y>=A;A++)for(var B=x;z>=B;B++){var C=A,D=B,E=C*(g-1)+D;E>=0&&m>E&&l[E].push(q)}for(var n=0;n!==m;n++)for(var F=l[n],A=0,G=F.length;A!==G;A++)for(var q=F[A],B=0;B!==A;B++){var H=F[B];d.canCollide(q,H)&&this.boundingVolumeCheck(q,H)&&b.push(q,H)}return b}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/collision/GridBroadphase.js","/collision")},{"../collision/Broadphase":12,"../math/vec2":33,"../shapes/Circle":40,"../shapes/Particle":44,"../shapes/Plane":45,"../utils/Utils":52,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],14:[function(a,b){(function(){function c(){d.call(this,d.NAIVE)}{var d=(a("../shapes/Circle"),a("../shapes/Plane"),a("../shapes/Shape"),a("../shapes/Particle"),a("../collision/Broadphase"));a("../math/vec2")}b.exports=c,c.prototype=new d,c.prototype.getCollisionPairs=function(a){var b=a.bodies,c=this.result;c.length=0;for(var e=0,f=b.length;e!==f;e++)for(var g=b[e],h=0;e>h;h++){var i=b[h];d.canCollide(g,i)&&this.boundingVolumeCheck(g,i)&&c.push(g,i)}return c}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/collision/NaiveBroadphase.js","/collision")},{"../collision/Broadphase":12,"../math/vec2":33,"../shapes/Circle":40,"../shapes/Particle":44,"../shapes/Plane":45,"../shapes/Shape":47,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],15:[function(a,b){(function(){function c(){this.contactEquations=[],this.frictionEquations=[],this.enableFriction=!0,this.slipForce=10,this.frictionCoefficient=.3,this.surfaceVelocity=0,this.reuseObjects=!0,this.reusableContactEquations=[],this.reusableFrictionEquations=[],this.restitution=0,this.stiffness=l.DEFAULT_STIFFNESS,this.relaxation=l.DEFAULT_RELAXATION,this.frictionStiffness=l.DEFAULT_STIFFNESS,this.frictionRelaxation=l.DEFAULT_RELAXATION,this.enableFrictionReduction=!0,this.collidingBodiesLastStep=new k,this.contactSkinSize=.01}function d(a,b){f.set(a.vertices[0],.5*-b.length,-b.radius),f.set(a.vertices[1],.5*b.length,-b.radius),f.set(a.vertices[2],.5*b.length,b.radius),f.set(a.vertices[3],.5*-b.length,b.radius)}function e(a,b,c,d){for(var e=R,i=S,j=T,k=U,l=a,m=b.vertices,n=null,o=0;o!==m.length+1;o++){var p=m[o%m.length],q=m[(o+1)%m.length];f.rotate(e,p,d),f.rotate(i,q,d),h(e,e,c),h(i,i,c),g(j,e,l),g(k,i,l);var r=f.crossLength(j,k);if(null===n&&(n=r),0>=r*n)return!1;n=r}return!0}var f=a("../math/vec2"),g=f.sub,h=f.add,i=f.dot,j=a("../utils/Utils"),k=a("../utils/TupleDictionary"),l=a("../equations/Equation"),m=a("../equations/ContactEquation"),n=a("../equations/FrictionEquation"),o=a("../shapes/Circle"),p=a("../shapes/Convex"),q=a("../shapes/Shape"),r=(a("../objects/Body"),a("../shapes/Rectangle"));b.exports=c;var s=f.fromValues(0,1),t=f.fromValues(0,0),u=f.fromValues(0,0),v=f.fromValues(0,0),w=f.fromValues(0,0),x=f.fromValues(0,0),y=f.fromValues(0,0),z=f.fromValues(0,0),A=f.fromValues(0,0),B=f.fromValues(0,0),C=f.fromValues(0,0),D=f.fromValues(0,0),E=f.fromValues(0,0),F=f.fromValues(0,0),G=f.fromValues(0,0),H=f.fromValues(0,0),I=f.fromValues(0,0),J=f.fromValues(0,0),K=f.fromValues(0,0),L=[];c.prototype.collidedLastStep=function(a,b){var c=0|a.id,d=0|b.id;return!!this.collidingBodiesLastStep.get(c,d)},c.prototype.reset=function(){this.collidingBodiesLastStep.reset();for(var a=this.contactEquations,b=a.length;b--;){var c=a[b],d=c.bodyA.id,e=c.bodyB.id;this.collidingBodiesLastStep.set(d,e,!0)}if(this.reuseObjects){var f=this.contactEquations,g=this.frictionEquations,h=this.reusableFrictionEquations,i=this.reusableContactEquations;j.appendArray(i,f),j.appendArray(h,g)}this.contactEquations.length=this.frictionEquations.length=0},c.prototype.createContactEquation=function(a,b,c,d){var e=this.reusableContactEquations.length?this.reusableContactEquations.pop():new m(a,b);return e.bodyA=a,e.bodyB=b,e.shapeA=c,e.shapeB=d,e.restitution=this.restitution,e.firstImpact=!this.collidedLastStep(a,b),e.stiffness=this.stiffness,e.relaxation=this.relaxation,e.needsUpdate=!0,e.enabled=!0,e.offset=this.contactSkinSize,e},c.prototype.createFrictionEquation=function(a,b,c,d){var e=this.reusableFrictionEquations.length?this.reusableFrictionEquations.pop():new n(a,b);return e.bodyA=a,e.bodyB=b,e.shapeA=c,e.shapeB=d,e.setSlipForce(this.slipForce),e.frictionCoefficient=this.frictionCoefficient,e.relativeVelocity=this.surfaceVelocity,e.enabled=!0,e.needsUpdate=!0,e.stiffness=this.frictionStiffness,e.relaxation=this.frictionRelaxation,e.contactEquations.length=0,e},c.prototype.createFrictionFromContact=function(a){var b=this.createFrictionEquation(a.bodyA,a.bodyB,a.shapeA,a.shapeB);return f.copy(b.contactPointA,a.contactPointA),f.copy(b.contactPointB,a.contactPointB),f.rotate90cw(b.t,a.normalA),b.contactEquations.push(a),b},c.prototype.createFrictionFromAverage=function(a){if(!a)throw new Error("numContacts == 0!");{var b=this.contactEquations[this.contactEquations.length-1],c=this.createFrictionEquation(b.bodyA,b.bodyB,b.shapeA,b.shapeB),d=b.bodyA;b.bodyB}f.set(c.contactPointA,0,0),f.set(c.contactPointB,0,0),f.set(c.t,0,0);for(var e=0;e!==a;e++)b=this.contactEquations[this.contactEquations.length-1-e],b.bodyA===d?(f.add(c.t,c.t,b.normalA),f.add(c.contactPointA,c.contactPointA,b.contactPointA),f.add(c.contactPointB,c.contactPointB,b.contactPointB)):(f.sub(c.t,c.t,b.normalA),f.add(c.contactPointA,c.contactPointA,b.contactPointB),f.add(c.contactPointB,c.contactPointB,b.contactPointA)),c.contactEquations.push(b);var g=1/a;return f.scale(c.contactPointA,c.contactPointA,g),f.scale(c.contactPointB,c.contactPointB,g),f.normalize(c.t,c.t),f.rotate90cw(c.t,c.t),c},c.prototype[q.LINE|q.CONVEX]=c.prototype.convexLine=function(a,b,c,d,e,f,g,h,i){return i?!1:0},c.prototype[q.LINE|q.RECTANGLE]=c.prototype.lineRectangle=function(a,b,c,d,e,f,g,h,i){return i?!1:0};var M=new r(1,1),N=f.create();c.prototype[q.CAPSULE|q.CONVEX]=c.prototype[q.CAPSULE|q.RECTANGLE]=c.prototype.convexCapsule=function(a,b,c,e,g,h,i,j,k){var l=N;f.set(l,h.length/2,0),f.rotate(l,l,j),f.add(l,l,i);var m=this.circleConvex(g,h,l,j,a,b,c,e,k,h.radius);f.set(l,-h.length/2,0),f.rotate(l,l,j),f.add(l,l,i);var n=this.circleConvex(g,h,l,j,a,b,c,e,k,h.radius);if(k&&(m||n))return!0;var o=M;d(o,h);var p=this.convexConvex(a,b,c,e,g,o,i,j,k);return p+m+n},c.prototype[q.CAPSULE|q.LINE]=c.prototype.lineCapsule=function(a,b,c,d,e,f,g,h,i){return i?!1:0};var O=f.create(),P=f.create(),Q=new r(1,1);c.prototype[q.CAPSULE|q.CAPSULE]=c.prototype.capsuleCapsule=function(a,b,c,e,g,h,i,j,k){for(var l,m=O,n=P,o=0,p=0;2>p;p++){f.set(m,(0===p?-1:1)*b.length/2,0),f.rotate(m,m,e),f.add(m,m,c);for(var q=0;2>q;q++){f.set(n,(0===q?-1:1)*h.length/2,0),f.rotate(n,n,j),f.add(n,n,i),this.enableFrictionReduction&&(l=this.enableFriction,this.enableFriction=!1);var r=this.circleCircle(a,b,m,e,g,h,n,j,k,b.radius,h.radius);if(this.enableFrictionReduction&&(this.enableFriction=l),k&&r)return!0;o+=r}}this.enableFrictionReduction&&(l=this.enableFriction,this.enableFriction=!1);var s=Q;d(s,b);var t=this.convexCapsule(a,s,c,e,g,h,i,j,k);if(this.enableFrictionReduction&&(this.enableFriction=l),k&&t)return!0;if(o+=t,this.enableFrictionReduction){var l=this.enableFriction;this.enableFriction=!1}d(s,h);var u=this.convexCapsule(g,s,i,j,a,b,c,e,k);return this.enableFrictionReduction&&(this.enableFriction=l),k&&u?!0:(o+=u,this.enableFrictionReduction&&o&&this.enableFriction&&this.frictionEquations.push(this.createFrictionFromAverage(o)),o)},c.prototype[q.LINE|q.LINE]=c.prototype.lineLine=function(a,b,c,d,e,f,g,h,i){return i?!1:0},c.prototype[q.PLANE|q.LINE]=c.prototype.planeLine=function(a,b,c,d,e,j,k,l,m){var n=t,o=u,p=v,q=w,r=x,C=y,D=z,E=A,F=B,G=L,H=0;f.set(n,-j.length/2,0),f.set(o,j.length/2,0),f.rotate(p,n,l),f.rotate(q,o,l),h(p,p,k),h(q,q,k),f.copy(n,p),f.copy(o,q),g(r,o,n),f.normalize(C,r),f.rotate90cw(F,C),f.rotate(E,s,d),G[0]=n,G[1]=o;for(var I=0;I<G.length;I++){var J=G[I];g(D,J,c);var K=i(D,E);if(0>K){if(m)return!0;var M=this.createContactEquation(a,e,b,j);H++,f.copy(M.normalA,E),f.normalize(M.normalA,M.normalA),f.scale(D,E,K),g(M.contactPointA,J,D),g(M.contactPointA,M.contactPointA,a.position),g(M.contactPointB,J,k),h(M.contactPointB,M.contactPointB,k),g(M.contactPointB,M.contactPointB,e.position),this.contactEquations.push(M),this.enableFrictionReduction||this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(M))}}return m?!1:(this.enableFrictionReduction||H&&this.enableFriction&&this.frictionEquations.push(this.createFrictionFromAverage(H)),H)},c.prototype[q.PARTICLE|q.CAPSULE]=c.prototype.particleCapsule=function(a,b,c,d,e,f,g,h,i){return this.circleLine(a,b,c,d,e,f,g,h,i,f.radius,0)},c.prototype[q.CIRCLE|q.LINE]=c.prototype.circleLine=function(a,b,c,d,e,j,k,l,m,n,o){var n=n||0,o="undefined"!=typeof o?o:b.radius,p=t,q=u,r=v,s=w,H=x,I=y,J=z,K=A,M=B,N=C,O=D,P=E,Q=F,R=G,S=L;f.set(K,-j.length/2,0),f.set(M,j.length/2,0),f.rotate(N,K,l),f.rotate(O,M,l),h(N,N,k),h(O,O,k),f.copy(K,N),f.copy(M,O),g(I,M,K),f.normalize(J,I),f.rotate90cw(H,J),g(P,c,K);var T=i(P,H);g(s,K,k),g(Q,c,k);var U=o+n;if(Math.abs(T)<U){f.scale(p,H,T),g(r,c,p),f.scale(q,H,i(H,Q)),f.normalize(q,q),f.scale(q,q,n),h(r,r,q);var V=i(J,r),W=i(J,K),X=i(J,M);if(V>W&&X>V){if(m)return!0;var Y=this.createContactEquation(a,e,b,j);return f.scale(Y.normalA,p,-1),f.normalize(Y.normalA,Y.normalA),f.scale(Y.contactPointA,Y.normalA,o),h(Y.contactPointA,Y.contactPointA,c),g(Y.contactPointA,Y.contactPointA,a.position),g(Y.contactPointB,r,k),h(Y.contactPointB,Y.contactPointB,k),g(Y.contactPointB,Y.contactPointB,e.position),this.contactEquations.push(Y),this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(Y)),1}}S[0]=K,S[1]=M;for(var Z=0;Z<S.length;Z++){var $=S[Z];if(g(P,$,c),f.squaredLength(P)<Math.pow(U,2)){if(m)return!0;var Y=this.createContactEquation(a,e,b,j);return f.copy(Y.normalA,P),f.normalize(Y.normalA,Y.normalA),f.scale(Y.contactPointA,Y.normalA,o),h(Y.contactPointA,Y.contactPointA,c),g(Y.contactPointA,Y.contactPointA,a.position),g(Y.contactPointB,$,k),f.scale(R,Y.normalA,-n),h(Y.contactPointB,Y.contactPointB,R),h(Y.contactPointB,Y.contactPointB,k),g(Y.contactPointB,Y.contactPointB,e.position),this.contactEquations.push(Y),this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(Y)),1}}return 0},c.prototype[q.CIRCLE|q.CAPSULE]=c.prototype.circleCapsule=function(a,b,c,d,e,f,g,h,i){return this.circleLine(a,b,c,d,e,f,g,h,i,f.radius)},c.prototype[q.CIRCLE|q.CONVEX]=c.prototype[q.CIRCLE|q.RECTANGLE]=c.prototype.circleConvex=function(a,b,c,d,i,j,k,l,m,n){for(var n="number"==typeof n?n:b.radius,o=t,p=u,q=v,r=w,s=x,y=C,z=D,A=F,B=G,E=H,J=I,K=!1,L=Number.MAX_VALUE,M=j.vertices,N=0;N!==M.length+1;N++){var O=M[N%M.length],P=M[(N+1)%M.length];if(f.rotate(o,O,l),f.rotate(p,P,l),h(o,o,k),h(p,p,k),g(q,p,o),f.normalize(r,q),f.rotate90cw(s,r),f.scale(B,s,-b.radius),h(B,B,c),e(B,j,k,l)){f.sub(E,o,B);var Q=Math.abs(f.dot(E,s));L>Q&&(f.copy(J,B),L=Q,f.scale(A,s,Q),f.add(A,A,B),K=!0)}}if(K){if(m)return!0;var R=this.createContactEquation(a,i,b,j);return f.sub(R.normalA,J,c),f.normalize(R.normalA,R.normalA),f.scale(R.contactPointA,R.normalA,n),h(R.contactPointA,R.contactPointA,c),g(R.contactPointA,R.contactPointA,a.position),g(R.contactPointB,A,k),h(R.contactPointB,R.contactPointB,k),g(R.contactPointB,R.contactPointB,i.position),this.contactEquations.push(R),this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(R)),1}if(n>0)for(var N=0;N<M.length;N++){var S=M[N];if(f.rotate(z,S,l),h(z,z,k),g(y,z,c),f.squaredLength(y)<Math.pow(n,2)){if(m)return!0;var R=this.createContactEquation(a,i,b,j);return f.copy(R.normalA,y),f.normalize(R.normalA,R.normalA),f.scale(R.contactPointA,R.normalA,n),h(R.contactPointA,R.contactPointA,c),g(R.contactPointA,R.contactPointA,a.position),g(R.contactPointB,z,k),h(R.contactPointB,R.contactPointB,k),g(R.contactPointB,R.contactPointB,i.position),this.contactEquations.push(R),this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(R)),1}}return 0};var R=f.create(),S=f.create(),T=f.create(),U=f.create();c.prototype[q.PARTICLE|q.CONVEX]=c.prototype[q.PARTICLE|q.RECTANGLE]=c.prototype.particleConvex=function(a,b,c,d,j,k,l,m,n){var o=t,p=u,q=v,r=w,s=x,A=y,B=z,D=C,E=F,G=J,H=K,I=Number.MAX_VALUE,L=!1,M=k.vertices;if(!e(c,k,l,m))return 0;if(n)return!0;for(var N=0;N!==M.length+1;N++){var O=M[N%M.length],P=M[(N+1)%M.length];f.rotate(o,O,m),f.rotate(p,P,m),h(o,o,l),h(p,p,l),g(q,p,o),f.normalize(r,q),f.rotate90cw(s,r),g(D,c,o);{i(D,s)}g(A,o,l),g(B,c,l),f.sub(G,o,c);var Q=Math.abs(f.dot(G,s));I>Q&&(I=Q,f.scale(E,s,Q),f.add(E,E,c),f.copy(H,s),L=!0)}if(L){var R=this.createContactEquation(a,j,b,k);return f.scale(R.normalA,H,-1),f.normalize(R.normalA,R.normalA),f.set(R.contactPointA,0,0),h(R.contactPointA,R.contactPointA,c),g(R.contactPointA,R.contactPointA,a.position),g(R.contactPointB,E,l),h(R.contactPointB,R.contactPointB,l),g(R.contactPointB,R.contactPointB,j.position),this.contactEquations.push(R),this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(R)),1}return 0},c.prototype[q.CIRCLE]=c.prototype.circleCircle=function(a,b,c,d,e,i,j,k,l,m,n){var o=t,m=m||b.radius,n=n||i.radius;g(o,c,j);var p=m+n;if(f.squaredLength(o)>Math.pow(p,2))return 0;if(l)return!0;var q=this.createContactEquation(a,e,b,i);return g(q.normalA,j,c),f.normalize(q.normalA,q.normalA),f.scale(q.contactPointA,q.normalA,m),f.scale(q.contactPointB,q.normalA,-n),h(q.contactPointA,q.contactPointA,c),g(q.contactPointA,q.contactPointA,a.position),h(q.contactPointB,q.contactPointB,j),g(q.contactPointB,q.contactPointB,e.position),this.contactEquations.push(q),this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(q)),1},c.prototype[q.PLANE|q.CONVEX]=c.prototype[q.PLANE|q.RECTANGLE]=c.prototype.planeConvex=function(a,b,c,d,e,j,k,l,m){var n=t,o=u,p=v,q=0;f.rotate(o,s,d);for(var r=0;r!==j.vertices.length;r++){var w=j.vertices[r];if(f.rotate(n,w,l),h(n,n,k),g(p,n,c),i(p,o)<=0){if(m)return!0;q++;var x=this.createContactEquation(a,e,b,j);g(p,n,c),f.copy(x.normalA,o);var y=i(p,x.normalA);f.scale(p,x.normalA,y),g(x.contactPointB,n,e.position),g(x.contactPointA,n,p),g(x.contactPointA,x.contactPointA,a.position),this.contactEquations.push(x),this.enableFrictionReduction||this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(x))}}return this.enableFrictionReduction&&this.enableFriction&&q&&this.frictionEquations.push(this.createFrictionFromAverage(q)),q},c.prototype[q.PARTICLE|q.PLANE]=c.prototype.particlePlane=function(a,b,c,d,e,h,j,k,l){var m=t,n=u;k=k||0,g(m,c,j),f.rotate(n,s,k);var o=i(m,n);if(o>0)return 0;if(l)return!0;var p=this.createContactEquation(e,a,h,b);return f.copy(p.normalA,n),f.scale(m,p.normalA,o),g(p.contactPointA,c,m),g(p.contactPointA,p.contactPointA,e.position),g(p.contactPointB,c,a.position),this.contactEquations.push(p),this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(p)),1},c.prototype[q.CIRCLE|q.PARTICLE]=c.prototype.circleParticle=function(a,b,c,d,e,i,j,k,l){var m=t;if(g(m,j,c),f.squaredLength(m)>Math.pow(b.radius,2))return 0;if(l)return!0;var n=this.createContactEquation(a,e,b,i);return f.copy(n.normalA,m),f.normalize(n.normalA,n.normalA),f.scale(n.contactPointA,n.normalA,b.radius),h(n.contactPointA,n.contactPointA,c),g(n.contactPointA,n.contactPointA,a.position),g(n.contactPointB,j,e.position),this.contactEquations.push(n),this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(n)),1};{var V=new o(1),W=f.create(),X=f.create();f.create()}c.prototype[q.PLANE|q.CAPSULE]=c.prototype.planeCapsule=function(a,b,c,d,e,g,i,j,k){var l=W,m=X,n=V;f.set(l,-g.length/2,0),f.rotate(l,l,j),h(l,l,i),f.set(m,g.length/2,0),f.rotate(m,m,j),h(m,m,i),n.radius=g.radius;var o;this.enableFrictionReduction&&(o=this.enableFriction,this.enableFriction=!1);var p=this.circlePlane(e,n,l,0,a,b,c,d,k),q=this.circlePlane(e,n,m,0,a,b,c,d,k);if(this.enableFrictionReduction&&(this.enableFriction=o),k)return p||q;var r=p+q;return this.enableFrictionReduction&&r&&this.frictionEquations.push(this.createFrictionFromAverage(r)),r},c.prototype[q.CIRCLE|q.PLANE]=c.prototype.circlePlane=function(a,b,c,d,e,j,k,l,m){var n=a,o=b,p=c,q=e,r=k,w=l;w=w||0;var x=t,y=u,z=v;g(x,p,r),f.rotate(y,s,w);var A=i(y,x);if(A>o.radius)return 0;if(m)return!0;var B=this.createContactEquation(q,n,j,b);return f.copy(B.normalA,y),f.scale(B.contactPointB,B.normalA,-o.radius),h(B.contactPointB,B.contactPointB,p),g(B.contactPointB,B.contactPointB,n.position),f.scale(z,B.normalA,A),g(B.contactPointA,x,z),h(B.contactPointA,B.contactPointA,r),g(B.contactPointA,B.contactPointA,q.position),this.contactEquations.push(B),this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(B)),1},c.prototype[q.CONVEX]=c.prototype[q.CONVEX|q.RECTANGLE]=c.prototype[q.RECTANGLE]=c.prototype.convexConvex=function(a,b,d,e,j,k,l,m,n,o){var p=t,q=u,r=v,s=w,y=x,C=z,D=A,E=B,F=0,o="number"==typeof o?o:0,G=c.findSeparatingAxis(b,d,e,k,l,m,p);if(!G)return 0;g(D,l,d),i(p,D)>0&&f.scale(p,p,-1);var H=c.getClosestEdge(b,e,p,!0),I=c.getClosestEdge(k,m,p);if(-1===H||-1===I)return 0;for(var J=0;2>J;J++){var K=H,L=I,M=b,N=k,O=d,P=l,Q=e,R=m,S=a,T=j;if(0===J){var U;U=K,K=L,L=U,U=M,M=N,N=U,U=O,O=P,P=U,U=Q,Q=R,R=U,U=S,S=T,T=U}for(var V=L;L+2>V;V++){var W=N.vertices[(V+N.vertices.length)%N.vertices.length];f.rotate(q,W,R),h(q,q,P);for(var X=0,Y=K-1;K+2>Y;Y++){var Z=M.vertices[(Y+M.vertices.length)%M.vertices.length],$=M.vertices[(Y+1+M.vertices.length)%M.vertices.length];f.rotate(r,Z,Q),f.rotate(s,$,Q),h(r,r,O),h(s,s,O),g(y,s,r),f.rotate90cw(E,y),f.normalize(E,E),g(D,q,r);var _=i(E,D);(Y===K&&o>=_||Y!==K&&0>=_)&&X++}if(X>=3){if(n)return!0;var ab=this.createContactEquation(S,T,M,N);F++;var Z=M.vertices[K%M.vertices.length],$=M.vertices[(K+1)%M.vertices.length];f.rotate(r,Z,Q),f.rotate(s,$,Q),h(r,r,O),h(s,s,O),g(y,s,r),f.rotate90cw(ab.normalA,y),f.normalize(ab.normalA,ab.normalA),g(D,q,r);var _=i(ab.normalA,D);f.scale(C,ab.normalA,_),g(ab.contactPointA,q,O),g(ab.contactPointA,ab.contactPointA,C),h(ab.contactPointA,ab.contactPointA,O),g(ab.contactPointA,ab.contactPointA,S.position),g(ab.contactPointB,q,P),h(ab.contactPointB,ab.contactPointB,P),g(ab.contactPointB,ab.contactPointB,T.position),this.contactEquations.push(ab),this.enableFrictionReduction||this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(ab))}}}return this.enableFrictionReduction&&this.enableFriction&&F&&this.frictionEquations.push(this.createFrictionFromAverage(F)),F};var Y=f.fromValues(0,0);c.projectConvexOntoAxis=function(a,b,c,d,e){var g,h,j=null,k=null,l=Y;f.rotate(l,d,-c);for(var m=0;m<a.vertices.length;m++)g=a.vertices[m],h=i(g,l),(null===j||h>j)&&(j=h),(null===k||k>h)&&(k=h);if(k>j){var n=k;k=j,j=n}var o=i(b,d);f.set(e,k+o,j+o)};var Z=f.fromValues(0,0),$=f.fromValues(0,0),_=f.fromValues(0,0),ab=f.fromValues(0,0),bb=f.fromValues(0,0),cb=f.fromValues(0,0);c.findSeparatingAxis=function(a,b,d,e,h,i,j){var k=null,l=!1,m=!1,n=Z,o=$,p=_,q=ab,s=bb,t=cb;if(a instanceof r&&e instanceof r)for(var u=0;2!==u;u++){var v=a,w=d;1===u&&(v=e,w=i);for(var x=0;2!==x;x++){0===x?f.set(q,0,1):1===x&&f.set(q,1,0),0!==w&&f.rotate(q,q,w),c.projectConvexOntoAxis(a,b,d,q,s),c.projectConvexOntoAxis(e,h,i,q,t);var y=s,z=t,A=!1;s[0]>t[0]&&(z=s,y=t,A=!0);var B=z[0]-y[1];l=0>=B,(null===k||B>k)&&(f.copy(j,q),k=B,m=l)}}else for(var u=0;2!==u;u++){var v=a,w=d;1===u&&(v=e,w=i);for(var x=0;x!==v.vertices.length;x++){f.rotate(o,v.vertices[x],w),f.rotate(p,v.vertices[(x+1)%v.vertices.length],w),g(n,p,o),f.rotate90cw(q,n),f.normalize(q,q),c.projectConvexOntoAxis(a,b,d,q,s),c.projectConvexOntoAxis(e,h,i,q,t);var y=s,z=t,A=!1;s[0]>t[0]&&(z=s,y=t,A=!0);var B=z[0]-y[1];l=0>=B,(null===k||B>k)&&(f.copy(j,q),k=B,m=l)}}return m};var db=f.fromValues(0,0),eb=f.fromValues(0,0),fb=f.fromValues(0,0);c.getClosestEdge=function(a,b,c,d){var e=db,h=eb,j=fb;f.rotate(e,c,-b),d&&f.scale(e,e,-1);for(var k=-1,l=a.vertices.length,m=-1,n=0;n!==l;n++){g(h,a.vertices[(n+1)%l],a.vertices[n%l]),f.rotate90cw(j,h),f.normalize(j,j);var o=i(j,e);(-1===k||o>m)&&(k=n%l,m=o)}return k};var gb=f.create(),hb=f.create(),ib=f.create(),jb=f.create(),kb=f.create(),lb=f.create(),mb=f.create();c.prototype[q.CIRCLE|q.HEIGHTFIELD]=c.prototype.circleHeightfield=function(a,b,c,d,e,i,j,k,l,m){var n=i.data,m=m||b.radius,o=i.elementWidth,p=hb,q=gb,r=kb,s=mb,t=lb,u=ib,v=jb,w=Math.floor((c[0]-m-j[0])/o),x=Math.ceil((c[0]+m-j[0])/o);0>w&&(w=0),x>=n.length&&(x=n.length-1);for(var y=n[w],z=n[x],A=w;x>A;A++)n[A]<z&&(z=n[A]),n[A]>y&&(y=n[A]);if(c[1]-m>y)return l?!1:0;c[1]+m<z;for(var B=!1,A=w;x>A;A++){f.set(u,A*o,n[A]),f.set(v,(A+1)*o,n[A+1]),f.add(u,u,j),f.add(v,v,j),f.sub(t,v,u),f.rotate(t,t,Math.PI/2),f.normalize(t,t),f.scale(q,t,-m),f.add(q,q,c),f.sub(p,q,u);var C=f.dot(p,t);if(q[0]>=u[0]&&q[0]<v[0]&&0>=C){if(l)return!0;B=!0,f.scale(p,t,-C),f.add(r,q,p),f.copy(s,t);var D=this.createContactEquation(e,a,i,b);f.copy(D.normalA,s),f.scale(D.contactPointB,D.normalA,-m),h(D.contactPointB,D.contactPointB,c),g(D.contactPointB,D.contactPointB,a.position),f.copy(D.contactPointA,r),f.sub(D.contactPointA,D.contactPointA,e.position),this.contactEquations.push(D),this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(D))}}if(B=!1,m>0)for(var A=w;x>=A;A++)if(f.set(u,A*o,n[A]),f.add(u,u,j),f.sub(p,c,u),f.squaredLength(p)<Math.pow(m,2)){if(l)return!0;B=!0;var D=this.createContactEquation(e,a,i,b);f.copy(D.normalA,p),f.normalize(D.normalA,D.normalA),f.scale(D.contactPointB,D.normalA,-m),h(D.contactPointB,D.contactPointB,c),g(D.contactPointB,D.contactPointB,a.position),g(D.contactPointA,u,j),h(D.contactPointA,D.contactPointA,j),g(D.contactPointA,D.contactPointA,e.position),this.contactEquations.push(D),this.enableFriction&&this.frictionEquations.push(this.createFrictionFromContact(D))}return B?1:0};var nb=f.create(),ob=f.create(),pb=f.create(),qb=new p([f.create(),f.create(),f.create(),f.create()]);c.prototype[q.RECTANGLE|q.HEIGHTFIELD]=c.prototype[q.CONVEX|q.HEIGHTFIELD]=c.prototype.convexHeightfield=function(a,b,c,d,e,g,h,i,j){var k=g.data,l=g.elementWidth,m=nb,n=ob,o=pb,p=qb,q=Math.floor((a.aabb.lowerBound[0]-h[0])/l),r=Math.ceil((a.aabb.upperBound[0]-h[0])/l);0>q&&(q=0),r>=k.length&&(r=k.length-1);for(var s=k[q],t=k[r],u=q;r>u;u++)k[u]<t&&(t=k[u]),k[u]>s&&(s=k[u]);if(a.aabb.lowerBound[1]>s)return j?!1:0;for(var v=0,u=q;r>u;u++){f.set(m,u*l,k[u]),f.set(n,(u+1)*l,k[u+1]),f.add(m,m,h),f.add(n,n,h);var w=100;f.set(o,.5*(n[0]+m[0]),.5*(n[1]+m[1]-w)),f.sub(p.vertices[0],n,o),f.sub(p.vertices[1],m,o),f.copy(p.vertices[2],p.vertices[1]),f.copy(p.vertices[3],p.vertices[0]),p.vertices[2][1]-=w,p.vertices[3][1]-=w,v+=this.convexConvex(a,b,c,d,e,p,o,0,j)}return v}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/collision/Narrowphase.js","/collision")},{"../equations/ContactEquation":24,"../equations/Equation":25,"../equations/FrictionEquation":26,"../math/vec2":33,"../objects/Body":34,"../shapes/Circle":40,"../shapes/Convex":41,"../shapes/Rectangle":46,"../shapes/Shape":47,"../utils/TupleDictionary":51,"../utils/Utils":52,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],16:[function(a,b){(function(){function c(){e.call(this,e.SAP),this.axisList=[],this.world=null,this.axisIndex=0;var a=this.axisList;this._addBodyHandler=function(b){a.push(b.body)},this._removeBodyHandler=function(b){var c=a.indexOf(b.body);-1!==c&&a.splice(c,1)}}var d=a("../utils/Utils"),e=a("../collision/Broadphase");b.exports=c,c.prototype=new e,c.prototype.setWorld=function(a){this.axisList.length=0,d.appendArray(this.axisList,a.bodies),a.off("addBody",this._addBodyHandler).off("removeBody",this._removeBodyHandler),a.on("addBody",this._addBodyHandler).on("removeBody",this._removeBodyHandler),this.world=a},c.sortAxisList=function(a,b){b=0|b;for(var c=1,d=a.length;d>c;c++){for(var e=a[c],f=c-1;f>=0&&!(a[f].aabb.lowerBound[b]<=e.aabb.lowerBound[b]);f--)a[f+1]=a[f];a[f+1]=e}return a},c.prototype.getCollisionPairs=function(){var a=this.axisList,b=this.result,d=this.axisIndex;b.length=0;for(var f=a.length;f--;){var g=a[f];g.aabbNeedsUpdate&&g.updateAABB()}c.sortAxisList(a,d);for(var h=0,i=0|a.length;h!==i;h++)for(var j=a[h],k=h+1;i>k;k++){var l=a[k],m=l.aabb.lowerBound[d]<=j.aabb.upperBound[d];if(!m)break;e.canCollide(j,l)&&this.boundingVolumeCheck(j,l)&&b.push(j,l)}return b}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/collision/SAPBroadphase.js","/collision")},{"../collision/Broadphase":12,"../utils/Utils":52,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],17:[function(a,b){(function(){function c(a,b,c,e){this.type=c,e=d.defaults(e,{collideConnected:!0,wakeUpBodies:!0}),this.equations=[],this.bodyA=a,this.bodyB=b,this.collideConnected=e.collideConnected,e.wakeUpBodies&&(a&&a.wakeUp(),b&&b.wakeUp())}b.exports=c;var d=a("../utils/Utils");c.prototype.update=function(){throw new Error("method update() not implmemented in this Constraint subclass!")},c.DISTANCE=1,c.GEAR=2,c.LOCK=3,c.PRISMATIC=4,c.REVOLUTE=5,c.prototype.setStiffness=function(a){for(var b=this.equations,c=0;c!==b.length;c++){var d=b[c];d.stiffness=a,d.needsUpdate=!0}},c.prototype.setRelaxation=function(a){for(var b=this.equations,c=0;c!==b.length;c++){var d=b[c];d.relaxation=a,d.needsUpdate=!0}}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/constraints/Constraint.js","/constraints")},{"../utils/Utils":52,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],18:[function(a,b){(function(){function c(a,b,c){c=g.defaults(c,{localAnchorA:[0,0],localAnchorB:[0,0]}),d.call(this,a,b,d.DISTANCE,c),this.localAnchorA=f.fromValues(c.localAnchorA[0],c.localAnchorA[1]),this.localAnchorB=f.fromValues(c.localAnchorB[0],c.localAnchorB[1]);var h=this.localAnchorA,i=this.localAnchorB;if(this.distance=0,"number"==typeof c.distance)this.distance=c.distance;else{var j=f.create(),k=f.create(),l=f.create();f.rotate(j,h,a.angle),f.rotate(k,i,b.angle),f.add(l,b.position,k),f.sub(l,l,j),f.sub(l,l,a.position),this.distance=f.length(l)}var m;m="undefined"==typeof c.maxForce?Number.MAX_VALUE:c.maxForce;var n=new e(a,b,-m,m);this.equations=[n],this.maxForce=m;var l=f.create(),o=f.create(),p=f.create(),q=this;n.computeGq=function(){var a=this.bodyA,b=this.bodyB,c=a.position,d=b.position;return f.rotate(o,h,a.angle),f.rotate(p,i,b.angle),f.add(l,d,p),f.sub(l,l,o),f.sub(l,l,c),f.length(l)-q.distance},this.setMaxForce(m),this.upperLimitEnabled=!1,this.upperLimit=1,this.lowerLimitEnabled=!1,this.lowerLimit=0,this.position=0}var d=a("./Constraint"),e=a("../equations/Equation"),f=a("../math/vec2"),g=a("../utils/Utils");
b.exports=c,c.prototype=new d;var h=f.create(),i=f.create(),j=f.create();c.prototype.update=function(){var a=this.equations[0],b=this.bodyA,c=this.bodyB,d=(this.distance,b.position),e=c.position,g=this.equations[0],k=a.G;f.rotate(i,this.localAnchorA,b.angle),f.rotate(j,this.localAnchorB,c.angle),f.add(h,e,j),f.sub(h,h,i),f.sub(h,h,d),this.position=f.length(h);var l=!1;if(this.upperLimitEnabled&&this.position>this.upperLimit&&(g.maxForce=0,g.minForce=-this.maxForce,this.distance=this.upperLimit,l=!0),this.lowerLimitEnabled&&this.position<this.lowerLimit&&(g.maxForce=this.maxForce,g.minForce=0,this.distance=this.lowerLimit,l=!0),(this.lowerLimitEnabled||this.upperLimitEnabled)&&!l)return void(g.enabled=!1);g.enabled=!0,f.normalize(h,h);var m=f.crossLength(i,h),n=f.crossLength(j,h);k[0]=-h[0],k[1]=-h[1],k[2]=-m,k[3]=h[0],k[4]=h[1],k[5]=n},c.prototype.setMaxForce=function(a){var b=this.equations[0];b.minForce=-a,b.maxForce=a},c.prototype.getMaxForce=function(){var a=this.equations[0];return a.maxForce}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/constraints/DistanceConstraint.js","/constraints")},{"../equations/Equation":25,"../math/vec2":33,"../utils/Utils":52,"./Constraint":17,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],19:[function(a,b){(function(){function c(a,b,c){c=c||{},d.call(this,a,b,d.GEAR,c),this.ratio="number"==typeof c.ratio?c.ratio:1,this.angle="number"==typeof c.angle?c.angle:b.angle-this.ratio*a.angle,c.angle=this.angle,c.ratio=this.ratio,this.equations=[new e(a,b,c)],"number"==typeof c.maxTorque&&this.setMaxTorque(c.maxTorque)}{var d=a("./Constraint"),e=(a("../equations/Equation"),a("../equations/AngleLockEquation"));a("../math/vec2")}b.exports=c,c.prototype=new d,c.prototype.update=function(){var a=this.equations[0];a.ratio!==this.ratio&&a.setRatio(this.ratio),a.angle=this.angle},c.prototype.setMaxTorque=function(a){this.equations[0].setMaxTorque(a)},c.prototype.getMaxTorque=function(){return this.equations[0].maxForce}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/constraints/GearConstraint.js","/constraints")},{"../equations/AngleLockEquation":23,"../equations/Equation":25,"../math/vec2":33,"./Constraint":17,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],20:[function(a,b){(function(){function c(a,b,c){c=c||{},d.call(this,a,b,d.LOCK,c);var g="undefined"==typeof c.maxForce?Number.MAX_VALUE:c.maxForce,h=(c.localAngleB||0,new f(a,b,-g,g)),i=new f(a,b,-g,g),j=new f(a,b,-g,g),k=e.create(),l=e.create(),m=this;h.computeGq=function(){return e.rotate(k,m.localOffsetB,a.angle),e.sub(l,b.position,a.position),e.sub(l,l,k),l[0]},i.computeGq=function(){return e.rotate(k,m.localOffsetB,a.angle),e.sub(l,b.position,a.position),e.sub(l,l,k),l[1]};var n=e.create(),o=e.create();j.computeGq=function(){return e.rotate(n,m.localOffsetB,b.angle-m.localAngleB),e.scale(n,n,-1),e.sub(l,a.position,b.position),e.add(l,l,n),e.rotate(o,n,-Math.PI/2),e.normalize(o,o),e.dot(l,o)},this.localOffsetB=e.create(),c.localOffsetB?e.copy(this.localOffsetB,c.localOffsetB):(e.sub(this.localOffsetB,b.position,a.position),e.rotate(this.localOffsetB,this.localOffsetB,-a.angle)),this.localAngleB=0,this.localAngleB="number"==typeof c.localAngleB?c.localAngleB:b.angle-a.angle,this.equations.push(h,i,j),this.setMaxForce(g)}var d=a("./Constraint"),e=a("../math/vec2"),f=a("../equations/Equation");b.exports=c,c.prototype=new d,c.prototype.setMaxForce=function(a){for(var b=this.equations,c=0;c<this.equations.length;c++)b[c].maxForce=a,b[c].minForce=-a},c.prototype.getMaxForce=function(){return this.equations[0].maxForce};var g=e.create(),h=e.create(),i=e.create(),j=e.fromValues(1,0),k=e.fromValues(0,1);c.prototype.update=function(){var a=this.equations[0],b=this.equations[1],c=this.equations[2],d=this.bodyA,f=this.bodyB;e.rotate(g,this.localOffsetB,d.angle),e.rotate(h,this.localOffsetB,f.angle-this.localAngleB),e.scale(h,h,-1),e.rotate(i,h,Math.PI/2),e.normalize(i,i),a.G[0]=-1,a.G[1]=0,a.G[2]=-e.crossLength(g,j),a.G[3]=1,b.G[0]=0,b.G[1]=-1,b.G[2]=-e.crossLength(g,k),b.G[4]=1,c.G[0]=-i[0],c.G[1]=-i[1],c.G[3]=i[0],c.G[4]=i[1],c.G[5]=e.crossLength(h,i)}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/constraints/LockConstraint.js","/constraints")},{"../equations/Equation":25,"../math/vec2":33,"./Constraint":17,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],21:[function(a,b){(function(){function c(a,b,c){c=c||{},d.call(this,a,b,d.PRISMATIC,c);var i=g.fromValues(0,0),j=g.fromValues(1,0),k=g.fromValues(0,0);c.localAnchorA&&g.copy(i,c.localAnchorA),c.localAxisA&&g.copy(j,c.localAxisA),c.localAnchorB&&g.copy(k,c.localAnchorB),this.localAnchorA=i,this.localAnchorB=k,this.localAxisA=j;var l=this.maxForce="undefined"!=typeof c.maxForce?c.maxForce:Number.MAX_VALUE,m=new f(a,b,-l,l),n=new g.create,o=new g.create,p=new g.create,q=new g.create;if(m.computeGq=function(){return g.dot(p,q)},m.updateJacobian=function(){var c=this.G,d=a.position,e=b.position;g.rotate(n,i,a.angle),g.rotate(o,k,b.angle),g.add(p,e,o),g.sub(p,p,d),g.sub(p,p,n),g.rotate(q,j,a.angle+Math.PI/2),c[0]=-q[0],c[1]=-q[1],c[2]=-g.crossLength(n,q)+g.crossLength(q,p),c[3]=q[0],c[4]=q[1],c[5]=g.crossLength(o,q)},this.equations.push(m),!c.disableRotationalLock){var r=new h(a,b,-l,l);this.equations.push(r)}this.position=0,this.velocity=0,this.lowerLimitEnabled="undefined"!=typeof c.lowerLimit?!0:!1,this.upperLimitEnabled="undefined"!=typeof c.upperLimit?!0:!1,this.lowerLimit="undefined"!=typeof c.lowerLimit?c.lowerLimit:0,this.upperLimit="undefined"!=typeof c.upperLimit?c.upperLimit:1,this.upperLimitEquation=new e(a,b),this.lowerLimitEquation=new e(a,b),this.upperLimitEquation.minForce=this.lowerLimitEquation.minForce=0,this.upperLimitEquation.maxForce=this.lowerLimitEquation.maxForce=l,this.motorEquation=new f(a,b),this.motorEnabled=!1,this.motorSpeed=0;{var s=this,t=this.motorEquation;t.computeGW}t.computeGq=function(){return 0},t.computeGW=function(){var a=this.G,b=this.bodyA,c=this.bodyB,d=b.velocity,e=c.velocity,f=b.angularVelocity,g=c.angularVelocity;return this.gmult(a,d,f,e,g)+s.motorSpeed}}var d=a("./Constraint"),e=a("../equations/ContactEquation"),f=a("../equations/Equation"),g=a("../math/vec2"),h=a("../equations/RotationalLockEquation");b.exports=c,c.prototype=new d;var i=g.create(),j=g.create(),k=g.create(),l=g.create(),m=g.create(),n=g.create();c.prototype.update=function(){var a=this.equations,b=a[0],c=this.upperLimit,d=this.lowerLimit,e=this.upperLimitEquation,f=this.lowerLimitEquation,h=this.bodyA,o=this.bodyB,p=this.localAxisA,q=this.localAnchorA,r=this.localAnchorB;b.updateJacobian(),g.rotate(i,p,h.angle),g.rotate(l,q,h.angle),g.add(j,l,h.position),g.rotate(m,r,o.angle),g.add(k,m,o.position);var s=this.position=g.dot(k,i)-g.dot(j,i);if(this.motorEnabled){var t=this.motorEquation.G;t[0]=i[0],t[1]=i[1],t[2]=g.crossLength(i,m),t[3]=-i[0],t[4]=-i[1],t[5]=-g.crossLength(i,l)}if(this.upperLimitEnabled&&s>c)g.scale(e.normalA,i,-1),g.sub(e.contactPointA,j,h.position),g.sub(e.contactPointB,k,o.position),g.scale(n,i,c),g.add(e.contactPointA,e.contactPointA,n),-1===a.indexOf(e)&&a.push(e);else{var u=a.indexOf(e);-1!==u&&a.splice(u,1)}if(this.lowerLimitEnabled&&d>s)g.scale(f.normalA,i,1),g.sub(f.contactPointA,j,h.position),g.sub(f.contactPointB,k,o.position),g.scale(n,i,d),g.sub(f.contactPointB,f.contactPointB,n),-1===a.indexOf(f)&&a.push(f);else{var u=a.indexOf(f);-1!==u&&a.splice(u,1)}},c.prototype.enableMotor=function(){this.motorEnabled||(this.equations.push(this.motorEquation),this.motorEnabled=!0)},c.prototype.disableMotor=function(){if(this.motorEnabled){var a=this.equations.indexOf(this.motorEquation);this.equations.splice(a,1),this.motorEnabled=!1}},c.prototype.setLimits=function(a,b){"number"==typeof a?(this.lowerLimit=a,this.lowerLimitEnabled=!0):(this.lowerLimit=a,this.lowerLimitEnabled=!1),"number"==typeof b?(this.upperLimit=b,this.upperLimitEnabled=!0):(this.upperLimit=b,this.upperLimitEnabled=!1)}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/constraints/PrismaticConstraint.js","/constraints")},{"../equations/ContactEquation":24,"../equations/Equation":25,"../equations/RotationalLockEquation":27,"../math/vec2":33,"./Constraint":17,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],22:[function(a,b){(function(){function c(a,b,c){c=c||{},d.call(this,a,b,d.REVOLUTE,c);var n=this.maxForce="undefined"!=typeof c.maxForce?c.maxForce:Number.MAX_VALUE;this.pivotA=h.create(),this.pivotB=h.create(),c.worldPivot?(h.sub(this.pivotA,c.worldPivot,a.position),h.sub(this.pivotB,c.worldPivot,b.position),h.rotate(this.pivotA,this.pivotA,-a.angle),h.rotate(this.pivotB,this.pivotB,-b.angle)):(h.copy(this.pivotA,c.localPivotA),h.copy(this.pivotB,c.localPivotB));var o=this.equations=[new e(a,b,-n,n),new e(a,b,-n,n)],p=o[0],q=o[1],r=this;p.computeGq=function(){return h.rotate(i,r.pivotA,a.angle),h.rotate(j,r.pivotB,b.angle),h.add(m,b.position,j),h.sub(m,m,a.position),h.sub(m,m,i),h.dot(m,k)},q.computeGq=function(){return h.rotate(i,r.pivotA,a.angle),h.rotate(j,r.pivotB,b.angle),h.add(m,b.position,j),h.sub(m,m,a.position),h.sub(m,m,i),h.dot(m,l)},q.minForce=p.minForce=-n,q.maxForce=p.maxForce=n,this.motorEquation=new f(a,b),this.motorEnabled=!1,this.angle=0,this.lowerLimitEnabled=!1,this.upperLimitEnabled=!1,this.lowerLimit=0,this.upperLimit=0,this.upperLimitEquation=new g(a,b),this.lowerLimitEquation=new 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c(a){a=a||{},h.call(this),this.id=++c._idCounter,this.world=null,this.shapes=[],this.shapeOffsets=[],this.shapeAngles=[],this.mass=a.mass||0,this.invMass=0,this.inertia=0,this.invInertia=0,this.invMassSolve=0,this.invInertiaSolve=0,this.fixedRotation=!!a.fixedRotation||!1,this.position=d.fromValues(0,0),a.position&&d.copy(this.position,a.position),this.interpolatedPosition=d.fromValues(0,0),this.interpolatedAngle=0,this.previousPosition=d.fromValues(0,0),this.previousAngle=0,this.velocity=d.fromValues(0,0),a.velocity&&d.copy(this.velocity,a.velocity),this.vlambda=d.fromValues(0,0),this.wlambda=0,this.angle=a.angle||0,this.angularVelocity=a.angularVelocity||0,this.force=d.create(),a.force&&d.copy(this.force,a.force),this.angularForce=a.angularForce||0,this.damping="number"==typeof a.damping?a.damping:.1,this.angularDamping="number"==typeof a.angularDamping?a.angularDamping:.1,this.type=c.STATIC,this.type="undefined"!=typeof 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a=0,b=0;b<this.shapes.length;b++)a+=this.shapes[b].area;return a},c.prototype.getAABB=function(){return this.aabbNeedsUpdate&&this.updateAABB(),this.aabb};var i=new g,j=d.create();c.prototype.updateAABB=function(){for(var a=this.shapes,b=this.shapeOffsets,c=this.shapeAngles,e=a.length,f=j,g=this.angle,h=0;h!==e;h++){var k=a[h],l=c[h]+g;d.rotate(f,b[h],g),d.add(f,f,this.position),k.computeAABB(i,f,l),0===h?this.aabb.copy(i):this.aabb.extend(i)}this.aabbNeedsUpdate=!1
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h=a[g],i=d.squaredLength(this.shapeOffsets[g]),j=h.computeMomentOfInertia(e);f+=j+e*i}this.inertia=f,this.invInertia=f>0?1/f:0}this.invMass=1/this.mass}};var k=d.create();c.prototype.applyForce=function(a,b){var c=k;d.sub(c,b,this.position),d.add(this.force,this.force,a);var e=d.crossLength(c,a);this.angularForce+=e},c.prototype.toLocalFrame=function(a,b){d.toLocalFrame(a,b,this.position,this.angle)},c.prototype.toWorldFrame=function(a,b){d.toGlobalFrame(a,b,this.position,this.angle)},c.prototype.fromPolygon=function(a,b){b=b||{};for(var c=this.shapes.length;c>=0;--c)this.removeShape(this.shapes[c]);var g=new e.Polygon;if(g.vertices=a,g.makeCCW(),"number"==typeof b.removeCollinearPoints&&g.removeCollinearPoints(b.removeCollinearPoints),"undefined"==typeof b.skipSimpleCheck&&!g.isSimple())return!1;this.concavePath=g.vertices.slice(0);for(var c=0;c<this.concavePath.length;c++){var h=[0,0];d.copy(h,this.concavePath[c]),this.concavePath[c]=h}var i;i=b.optimalDecomp?g.decomp():g.quickDecomp();for(var j=d.create(),c=0;c!==i.length;c++){for(var k=new f(i[c].vertices),l=0;l!==k.vertices.length;l++){var h=k.vertices[l];d.sub(h,h,k.centerOfMass)}d.scale(j,k.centerOfMass,1),k.updateTriangles(),k.updateCenterOfMass(),k.updateBoundingRadius(),this.addShape(k,j)}return this.adjustCenterOfMass(),this.aabbNeedsUpdate=!0,!0};var l=(d.fromValues(0,0),d.fromValues(0,0)),m=d.fromValues(0,0),n=d.fromValues(0,0);c.prototype.adjustCenterOfMass=function(){var a=l,b=m,c=n,e=0;d.set(b,0,0);for(var f=0;f!==this.shapes.length;f++){var g=this.shapes[f],h=this.shapeOffsets[f];d.scale(a,h,g.area),d.add(b,b,a),e+=g.area}d.scale(c,b,1/e);for(var f=0;f!==this.shapes.length;f++){var g=this.shapes[f],h=this.shapeOffsets[f];h||(h=this.shapeOffsets[f]=d.create()),d.sub(h,h,c)}d.add(this.position,this.position,c);for(var 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c(a,b,c){c=c||{},e.call(this,a,b,c),this.localAnchorA=d.fromValues(0,0),this.localAnchorB=d.fromValues(0,0),c.localAnchorA&&d.copy(this.localAnchorA,c.localAnchorA),c.localAnchorB&&d.copy(this.localAnchorB,c.localAnchorB),c.worldAnchorA&&this.setWorldAnchorA(c.worldAnchorA),c.worldAnchorB&&this.setWorldAnchorB(c.worldAnchorB);var f=d.create(),g=d.create();this.getWorldAnchorA(f),this.getWorldAnchorB(g);var h=d.distance(f,g);this.restLength="number"==typeof c.restLength?c.restLength:h}{var d=a("../math/vec2"),e=a("./Spring");a("../utils/Utils")}b.exports=c,c.prototype=new e,c.prototype.setWorldAnchorA=function(a){this.bodyA.toLocalFrame(this.localAnchorA,a)},c.prototype.setWorldAnchorB=function(a){this.bodyB.toLocalFrame(this.localAnchorB,a)},c.prototype.getWorldAnchorA=function(a){this.bodyA.toWorldFrame(a,this.localAnchorA)},c.prototype.getWorldAnchorB=function(a){this.bodyB.toWorldFrame(a,this.localAnchorB)};var 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e={bodies:[]};c.prototype.solveIsland=function(a,b){this.removeAllEquations(),b.equations.length&&(this.addEquations(b.equations),e.bodies.length=0,b.getBodies(e.bodies),e.bodies.length&&this.solve(a,e))},c.prototype.sortEquations=function(){this.equationSortFunction&&this.equations.sort(this.equationSortFunction)},c.prototype.addEquation=function(a){a.enabled&&this.equations.push(a)},c.prototype.addEquations=function(a){for(var b=0,c=a.length;b!==c;b++){var d=a[b];d.enabled&&this.equations.push(d)}},c.prototype.removeEquation=function(a){var b=this.equations.indexOf(a);-1!==b&&this.equations.splice(b,1)},c.prototype.removeAllEquations=function(){this.equations.length=0},c.GS=1,c.ISLAND=2}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof 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f=(this.overlappingShapesLastState,this.overlappingShapesCurrentState);if(!f.get(b.id,e.id)){var g;this.recordPool.length?(g=this.recordPool.pop(),g.set(a,b,c,e)):g=new d(a,b,c,e),f.set(b.id,e.id,g)}},c.prototype.getNewOverlaps=function(a){return this.getDiff(this.overlappingShapesLastState,this.overlappingShapesCurrentState,a)},c.prototype.getEndOverlaps=function(a){return this.getDiff(this.overlappingShapesCurrentState,this.overlappingShapesLastState,a)},c.prototype.bodiesAreOverlapping=function(a,b){for(var c=this.overlappingShapesCurrentState,d=c.keys.length;d--;){var e=c.keys[d],f=c.data[e];if(f.bodyA===a&&f.bodyB===b||f.bodyA===b&&f.bodyB===a)return!0}return!1},c.prototype.getDiff=function(a,b,c){var c=c||[],d=a,e=b;c.length=0;for(var f=e.keys.length;f--;){var g=e.keys[f],h=e.data[g];if(!h)throw new Error("Key "+g+" had no data!");var i=d.data[g];i||c.push(h)}return c},c.prototype.isNewOverlap=function(a,b){var c=0|a.id,d=0|b.id,e=this.overlappingShapesLastState,f=this.overlappingShapesCurrentState;return!e.get(c,d)&&!!f.get(c,d)},c.prototype.getNewBodyOverlaps=function(a){this.tmpArray1.length=0;var b=this.getNewOverlaps(this.tmpArray1);return this.getBodyDiff(b,a)},c.prototype.getEndBodyOverlaps=function(a){this.tmpArray1.length=0;var b=this.getEndOverlaps(this.tmpArray1);return this.getBodyDiff(b,a)},c.prototype.getBodyDiff=function(a,b){b=b||[];for(var c=this.tmpDict,d=a.length;d--;){var e=a[d];
c.set(0|e.bodyA.id,0|e.bodyB.id,e)}for(d=c.keys.length;d--;){var e=c.getByKey(c.keys[d]);e&&b.push(e.bodyA,e.bodyB)}return c.reset(),b},d.prototype.set=function(a,b,c,e){d.call(this,a,b,c,e)}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/utils/OverlapKeeper.js","/utils")},{"./TupleDictionary":51,"./Utils":52,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],51:[function(a,b){(function(){function c(){this.data={},this.keys=[]}var d=a("./Utils");b.exports=c,c.prototype.getKey=function(a,b){return a=0|a,b=0|b,(0|a)===(0|b)?-1:0|((0|a)>(0|b)?a<<16|65535&b:b<<16|65535&a)},c.prototype.getByKey=function(a){return a=0|a,this.data[a]},c.prototype.get=function(a,b){return this.data[this.getKey(a,b)]},c.prototype.set=function(a,b,c){if(!c)throw new Error("No data!");var d=this.getKey(a,b);return this.data[d]||this.keys.push(d),this.data[d]=c,d},c.prototype.reset=function(){for(var a=this.data,b=this.keys,c=b.length;c--;)delete a[b[c]];b.length=0},c.prototype.copy=function(a){this.reset(),d.appendArray(this.keys,a.keys);for(var b=a.keys.length;b--;){var c=a.keys[b];this.data[c]=a.data[c]}}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/utils/TupleDictionary.js","/utils")},{"./Utils":52,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],52:[function(a,b){(function(){function a(){}b.exports=a,a.appendArray=function(a,b){if(b.length<15e4)a.push.apply(a,b);else for(var c=0,d=b.length;c!==d;++c)a.push(b[c])},a.splice=function(a,b,c){c=c||1;for(var d=b,e=a.length-c;e>d;d++)a[d]=a[d+c];a.length=e},a.ARRAY_TYPE="undefined"!=typeof P2_ARRAY_TYPE?P2_ARRAY_TYPE:"undefined"!=typeof Float32Array?Float32Array:Array,a.extend=function(a,b){for(var c in b)a[c]=b[c]},a.defaults=function(a,b){a=a||{};for(var c in b)c in a||(a[c]=b[c]);return a}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/utils/Utils.js","/utils")},{"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],53:[function(a,b){(function(){function c(){this.equations=[],this.bodies=[]}var d=a("../objects/Body");b.exports=c,c.prototype.reset=function(){this.equations.length=this.bodies.length=0};var e=[];c.prototype.getBodies=function(a){var b=a||[],c=this.equations;e.length=0;for(var d=0;d!==c.length;d++){var f=c[d];-1===e.indexOf(f.bodyA.id)&&(b.push(f.bodyA),e.push(f.bodyA.id)),-1===e.indexOf(f.bodyB.id)&&(b.push(f.bodyB),e.push(f.bodyB.id))}return b},c.prototype.wantsToSleep=function(){for(var a=0;a<this.bodies.length;a++){var b=this.bodies[a];if(b.type===d.DYNAMIC&&!b.wantsToSleep)return!1}return!0},c.prototype.sleep=function(){for(var a=0;a<this.bodies.length;a++){var b=this.bodies[a];b.sleep()}return!0}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/world/Island.js","/world")},{"../objects/Body":34,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],54:[function(a,b){(function(){function c(){this._nodePool=[],this._islandPool=[],this.equations=[],this.islands=[],this.nodes=[],this.queue=[]}var d=(a("../math/vec2"),a("./Island")),e=a("./IslandNode"),f=a("../objects/Body");b.exports=c,c.getUnvisitedNode=function(a){for(var b=a.length,c=0;c!==b;c++){var d=a[c];if(!d.visited&&d.body.type===f.DYNAMIC)return d}return!1},c.prototype.visit=function(a,b,c){b.push(a.body);for(var d=a.equations.length,e=0;e!==d;e++){var f=a.equations[e];-1===c.indexOf(f)&&c.push(f)}},c.prototype.bfs=function(a,b,d){var e=this.queue;for(e.length=0,e.push(a),a.visited=!0,this.visit(a,b,d);e.length;)for(var g,h=e.pop();g=c.getUnvisitedNode(h.neighbors);)g.visited=!0,this.visit(g,b,d),g.body.type===f.DYNAMIC&&e.push(g)},c.prototype.split=function(a){for(var b=a.bodies,f=this.nodes,g=this.equations;f.length;)this._nodePool.push(f.pop());for(var h=0;h!==b.length;h++)if(this._nodePool.length){var i=this._nodePool.pop();i.reset(),i.body=b[h],f.push(i)}else f.push(new e(b[h]));for(var j=0;j!==g.length;j++){var k=g[j],h=b.indexOf(k.bodyA),l=b.indexOf(k.bodyB),m=f[h],n=f[l];m.neighbors.push(n),n.neighbors.push(m),m.equations.push(k),n.equations.push(k)}for(var o=this.islands;o.length;){var p=o.pop();p.reset(),this._islandPool.push(p)}for(var q;q=c.getUnvisitedNode(f);){var p=this._islandPool.length?this._islandPool.pop():new d;this.bfs(q,p.bodies,p.equations),o.push(p)}return o}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/world/IslandManager.js","/world")},{"../math/vec2":33,"../objects/Body":34,"./Island":53,"./IslandNode":55,"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],55:[function(a,b){(function(){function a(a){this.body=a,this.neighbors=[],this.equations=[],this.visited=!1}b.exports=a,a.prototype.reset=function(){this.equations.length=0,this.neighbors.length=0,this.visited=!1,this.body=null}}).call(this,a("/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js"),"undefined"!=typeof self?self:"undefined"!=typeof window?window:{},a("buffer").Buffer,arguments[3],arguments[4],arguments[5],arguments[6],"/world/IslandNode.js","/world")},{"/Users/schteppe/git/p2.js/node_modules/grunt-browserify/node_modules/browserify/node_modules/insert-module-globals/node_modules/process/browser.js":4,buffer:1}],56:[function(a,b){(function(){function c(a){l.apply(this),a=a||{},this.springs=[],this.bodies=[],this.disabledBodyCollisionPairs=[],this.solver=a.solver||new d,this.narrowphase=new p(this),this.islandManager=new s,this.gravity=f.fromValues(0,-9.78),a.gravity&&f.copy(this.gravity,a.gravity),this.frictionGravity=f.length(this.gravity)||10,this.useWorldGravityAsFrictionGravity=!0,this.useFrictionGravityOnZeroGravity=!0,this.doProfiling=a.doProfiling||!1,this.lastStepTime=0,this.broadphase=a.broadphase||new e,this.broadphase.setWorld(this),this.constraints=[],this.defaultMaterial=new n,this.defaultContactMaterial=new o(this.defaultMaterial,this.defaultMaterial),this.lastTimeStep=1/60,this.applySpringForces=!0,this.applyDamping=!0,this.applyGravity=!0,this.solveConstraints=!0,this.contactMaterials=[],this.time=0,this.stepping=!1,this.bodiesToBeRemoved=[],this.fixedStepTime=0,this.islandSplit="undefined"!=typeof a.islandSplit?!!a.islandSplit:!1,this.emitImpactEvent=!0,this._constraintIdCounter=0,this._bodyIdCounter=0,this.postStepEvent={type:"postStep"},this.addBodyEvent={type:"addBody",body:null},this.removeBodyEvent={type:"removeBody",body:null},this.addSpringEvent={type:"addSpring",spring:null},this.impactEvent={type:"impact",bodyA:null,bodyB:null,shapeA:null,shapeB:null,contactEquation:null},this.postBroadphaseEvent={type:"postBroadphase",pairs:null},this.sleepMode=c.NO_SLEEPING,this.beginContactEvent={type:"beginContact",shapeA:null,shapeB:null,bodyA:null,bodyB:null,contactEquations:[]},this.endContactEvent={type:"endContact",shapeA:null,shapeB:null,bodyA:null,bodyB:null},this.preSolveEvent={type:"preSolve",contactEquations:null,frictionEquations:null},this.overlappingShapesLastState={keys:[]},this.overlappingShapesCurrentState={keys:[]},this.overlapKeeper=new r}{var d=a("../solver/GSSolver"),e=(a("../solver/Solver"),a("../collision/NaiveBroadphase")),f=a("../math/vec2"),g=a("../shapes/Circle"),h=(a("../shapes/Rectangle"),a("../shapes/Convex")),i=(a("../shapes/Line"),a("../shapes/Plane")),j=a("../shapes/Capsule"),k=a("../shapes/Particle"),l=a("../events/EventEmitter"),m=a("../objects/Body"),n=(a("../shapes/Shape"),a("../objects/LinearSpring"),a("../material/Material")),o=a("../material/ContactMaterial"),p=(a("../constraints/DistanceConstraint"),a("../constraints/Constraint"),a("../constraints/LockConstraint"),a("../constraints/RevoluteConstraint"),a("../constraints/PrismaticConstraint"),a("../constraints/GearConstraint"),a("../../package.json"),a("../collision/Broadphase"),a("../collision/SAPBroadphase"),a("../collision/Narrowphase")),q=a("../utils/Utils"),r=a("../utils/OverlapKeeper"),s=a("./IslandManager");a("../objects/RotationalSpring")}if(b.exports=c,"undefined"==typeof performance&&(performance={}),!performance.now){var t=Date.now();performance.timing&&performance.timing.navigationStart&&(t=performance.timing.navigationStart),performance.now=function(){return Date.now()-t}}c.prototype=new Object(l.prototype),c.NO_SLEEPING=1,c.BODY_SLEEPING=2,c.ISLAND_SLEEPING=4,c.prototype.addConstraint=function(a){this.constraints.push(a)},c.prototype.addContactMaterial=function(a){this.contactMaterials.push(a)},c.prototype.removeContactMaterial=function(a){var b=this.contactMaterials.indexOf(a);-1!==b&&q.splice(this.contactMaterials,b,1)},c.prototype.getContactMaterial=function(a,b){for(var c=this.contactMaterials,d=0,e=c.length;d!==e;d++){var f=c[d];if(f.materialA.id===a.id&&f.materialB.id===b.id||f.materialA.id===b.id&&f.materialB.id===a.id)return f}return!1},c.prototype.removeConstraint=function(a){var b=this.constraints.indexOf(a);-1!==b&&q.splice(this.constraints,b,1)};var u=(f.create(),f.create(),f.create(),f.create(),f.create(),f.create(),f.create()),v=f.fromValues(0,0),w=f.fromValues(0,0),x=(f.fromValues(0,0),f.fromValues(0,0));c.prototype.step=function(a,b,c){if(c=c||10,b=b||0,0===b)this.internalStep(a),this.time+=a;else{var d=Math.floor((this.time+b)/a)-Math.floor(this.time/a);d=Math.min(d,c);for(var e=performance.now(),g=0;g!==d&&(this.internalStep(a),!(performance.now()-e>1e3*a));g++);this.time+=b;for(var h=this.time%a,i=h/a,j=0;j!==this.bodies.length;j++){var k=this.bodies[j];k.type!==m.STATIC&&k.sleepState!==m.SLEEPING?(f.sub(x,k.position,k.previousPosition),f.scale(x,x,i),f.add(k.interpolatedPosition,k.position,x),k.interpolatedAngle=k.angle+(k.angle-k.previousAngle)*i):(f.copy(k.interpolatedPosition,k.position),k.interpolatedAngle=k.angle)}}};var y=[];c.prototype.internalStep=function(a){this.stepping=!0;var b,d,e=this,g=this.doProfiling,h=this.springs.length,i=this.springs,j=this.bodies,k=this.gravity,l=this.solver,n=this.bodies.length,o=this.broadphase,p=this.narrowphase,r=this.constraints,s=u,t=(f.scale,f.add),v=(f.rotate,this.islandManager);if(this.overlapKeeper.tick(),this.lastTimeStep=a,g&&(b=performance.now()),this.useWorldGravityAsFrictionGravity){var w=f.length(this.gravity);0===w&&this.useFrictionGravityOnZeroGravity||(this.frictionGravity=w)}if(this.applyGravity)for(var x=0;x!==n;x++){var z=j[x],A=z.force;z.type===m.DYNAMIC&&z.sleepState!==m.SLEEPING&&(f.scale(s,k,z.mass*z.gravityScale),t(A,A,s))}if(this.applySpringForces)for(var x=0;x!==h;x++){var B=i[x];B.applyForce()}if(this.applyDamping)for(var x=0;x!==n;x++){var z=j[x];z.type===m.DYNAMIC&&z.applyDamping(a)}for(var C=o.getCollisionPairs(this),D=this.disabledBodyCollisionPairs,x=D.length-2;x>=0;x-=2)for(var E=C.length-2;E>=0;E-=2)(D[x]===C[E]&&D[x+1]===C[E+1]||D[x+1]===C[E]&&D[x]===C[E+1])&&C.splice(E,2);var F=r.length;for(x=0;x!==F;x++){var G=r[x];if(!G.collideConnected)for(var E=C.length-2;E>=0;E-=2)(G.bodyA===C[E]&&G.bodyB===C[E+1]||G.bodyB===C[E]&&G.bodyA===C[E+1])&&C.splice(E,2)}this.postBroadphaseEvent.pairs=C,this.emit(this.postBroadphaseEvent),p.reset(this);for(var x=0,H=C.length;x!==H;x+=2)for(var I=C[x],J=C[x+1],K=0,L=I.shapes.length;K!==L;K++)for(var M=I.shapes[K],N=I.shapeOffsets[K],O=I.shapeAngles[K],P=0,Q=J.shapes.length;P!==Q;P++){var R=J.shapes[P],S=J.shapeOffsets[P],T=J.shapeAngles[P],U=this.defaultContactMaterial;if(M.material&&R.material){var V=this.getContactMaterial(M.material,R.material);V&&(U=V)}this.runNarrowphase(p,I,M,N,O,J,R,S,T,U,this.frictionGravity)}for(var x=0;x!==n;x++){var W=j[x];W._wakeUpAfterNarrowphase&&(W.wakeUp(),W._wakeUpAfterNarrowphase=!1)}if(this.has("endContact")){this.overlapKeeper.getEndOverlaps(y);for(var X=this.endContactEvent,P=y.length;P--;){var Y=y[P];X.shapeA=Y.shapeA,X.shapeB=Y.shapeB,X.bodyA=Y.bodyA,X.bodyB=Y.bodyA,this.emit(X)}}var Z=this.preSolveEvent;Z.contactEquations=p.contactEquations,Z.frictionEquations=p.frictionEquations,this.emit(Z);var F=r.length;for(x=0;x!==F;x++)r[x].update();if(p.contactEquations.length||p.frictionEquations.length||r.length)if(this.islandSplit){for(v.equations.length=0,q.appendArray(v.equations,p.contactEquations),q.appendArray(v.equations,p.frictionEquations),x=0;x!==F;x++)q.appendArray(v.equations,r[x].equations);v.split(this);for(var x=0;x!==v.islands.length;x++){var $=v.islands[x];$.equations.length&&l.solveIsland(a,$)}}else{for(l.addEquations(p.contactEquations),l.addEquations(p.frictionEquations),x=0;x!==F;x++)l.addEquations(r[x].equations);this.solveConstraints&&l.solve(a,this),l.removeAllEquations()}for(var x=0;x!==n;x++){var W=j[x];W.sleepState!==m.SLEEPING&&W.type!==m.STATIC&&c.integrateBody(W,a)}for(var x=0;x!==n;x++)j[x].setZeroForce();if(g&&(d=performance.now(),e.lastStepTime=d-b),this.emitImpactEvent&&this.has("impact"))for(var _=this.impactEvent,x=0;x!==p.contactEquations.length;x++){var ab=p.contactEquations[x];ab.firstImpact&&(_.bodyA=ab.bodyA,_.bodyB=ab.bodyB,_.shapeA=ab.shapeA,_.shapeB=ab.shapeB,_.contactEquation=ab,this.emit(_))}if(this.sleepMode===c.BODY_SLEEPING)for(x=0;x!==n;x++)j[x].sleepTick(this.time,!1,a);else if(this.sleepMode===c.ISLAND_SLEEPING&&this.islandSplit){for(x=0;x!==n;x++)j[x].sleepTick(this.time,!0,a);for(var x=0;x<this.islandManager.islands.length;x++){var $=this.islandManager.islands[x];$.wantsToSleep()&&$.sleep()}}if(this.stepping=!1,this.bodiesToBeRemoved.length){for(var x=0;x!==this.bodiesToBeRemoved.length;x++)this.removeBody(this.bodiesToBeRemoved[x]);this.bodiesToBeRemoved.length=0}this.emit(this.postStepEvent)};var z=f.create(),A=f.create();c.integrateBody=function(a,b){var c=a.invMass,d=a.force,e=a.position,g=a.velocity;f.copy(a.previousPosition,a.position),a.previousAngle=a.angle,a.fixedRotation||(a.angularVelocity+=a.angularForce*a.invInertia*b,a.angle+=a.angularVelocity*b),f.scale(z,d,b*c),f.add(g,z,g),f.scale(A,g,b),f.add(e,e,A),a.aabbNeedsUpdate=!0},c.prototype.runNarrowphase=function(a,b,c,d,e,g,h,i,j,k,l){if(0!==(c.collisionGroup&h.collisionMask)&&0!==(h.collisionGroup&c.collisionMask)){f.rotate(v,d,b.angle),f.rotate(w,i,g.angle),f.add(v,v,b.position),f.add(w,w,g.position);var n=e+b.angle,o=j+g.angle;a.enableFriction=k.friction>0,a.frictionCoefficient=k.friction;var p;p=b.type===m.STATIC||b.type===m.KINEMATIC?g.mass:g.type===m.STATIC||g.type===m.KINEMATIC?b.mass:b.mass*g.mass/(b.mass+g.mass),a.slipForce=k.friction*l*p,a.restitution=k.restitution,a.surfaceVelocity=k.surfaceVelocity,a.frictionStiffness=k.frictionStiffness,a.frictionRelaxation=k.frictionRelaxation,a.stiffness=k.stiffness,a.relaxation=k.relaxation,a.contactSkinSize=k.contactSkinSize;var q=a[c.type|h.type],r=0;if(q){var s=c.sensor||h.sensor,t=a.frictionEquations.length;r=c.type<h.type?q.call(a,b,c,v,n,g,h,w,o,s):q.call(a,g,h,w,o,b,c,v,n,s);var u=a.frictionEquations.length-t;if(r){if(b.allowSleep&&b.type===m.DYNAMIC&&b.sleepState===m.SLEEPING&&g.sleepState===m.AWAKE&&g.type!==m.STATIC){var x=f.squaredLength(g.velocity)+Math.pow(g.angularVelocity,2),y=Math.pow(g.sleepSpeedLimit,2);x>=2*y&&(b._wakeUpAfterNarrowphase=!0)}if(g.allowSleep&&g.type===m.DYNAMIC&&g.sleepState===m.SLEEPING&&b.sleepState===m.AWAKE&&b.type!==m.STATIC){var z=f.squaredLength(b.velocity)+Math.pow(b.angularVelocity,2),A=Math.pow(b.sleepSpeedLimit,2);z>=2*A&&(g._wakeUpAfterNarrowphase=!0)}if(this.overlapKeeper.setOverlapping(b,c,g,h),this.has("beginContact")&&this.overlapKeeper.isNewOverlap(c,h)){var B=this.beginContactEvent;if(B.shapeA=c,B.shapeB=h,B.bodyA=b,B.bodyB=g,B.contactEquations.length=0,"number"==typeof r)for(var C=a.contactEquations.length-r;C<a.contactEquations.length;C++)B.contactEquations.push(a.contactEquations[C]);this.emit(B)}if("number"==typeof r&&u>1)for(var C=a.frictionEquations.length-u;C<a.frictionEquations.length;C++){var D=a.frictionEquations[C];D.setSlipForce(D.getSlipForce()/u)}}}}},c.prototype.addSpring=function(a){this.springs.push(a),this.addSpringEvent.spring=a,this.emit(this.addSpringEvent)},c.prototype.removeSpring=function(a){var b=this.springs.indexOf(a);-1!==b&&q.splice(this.springs,b,1)},c.prototype.addBody=function(a){-1===this.bodies.indexOf(a)&&(this.bodies.push(a),a.world=this,this.addBodyEvent.body=a,this.emit(this.addBodyEvent))},c.prototype.removeBody=function(a){if(this.stepping)this.bodiesToBeRemoved.push(a);else{a.world=null;var b=this.bodies.indexOf(a);-1!==b&&(q.splice(this.bodies,b,1),this.removeBodyEvent.body=a,a.resetConstraintVelocity(),this.emit(this.removeBodyEvent))}},c.prototype.getBodyById=function(a){for(var b=this.bodies,c=0;c<b.length;c++){var d=b[c];if(d.id===a)return d}return!1},c.prototype.disableBodyCollision=function(a,b){this.disabledBodyCollisionPairs.push(a,b)},c.prototype.enableBodyCollision=function(a,b){for(var c=this.disabledBodyCollisionPairs,d=0;d<c.length;d+=2)if(c[d]===a&&c[d+1]===b||c[d+1]===a&&c[d]===b)return void c.splice(d,2)},c.prototype.clear=function(){this.time=0,this.fixedStepTime=0,this.solver&&this.solver.equations.length&&this.solver.removeAllEquations();for(var a=this.constraints,b=a.length-1;b>=0;b--)this.removeConstraint(a[b]);for(var d=this.bodies,b=d.length-1;b>=0;b--)this.removeBody(d[b]);for(var e=this.springs,b=e.length-1;b>=0;b--)this.removeSpring(e[b]);for(var f=this.contactMaterials,b=f.length-1;b>=0;b--)this.removeContactMaterial(f[b]);c.apply(this)},c.prototype.clone=function(){var a=new c;return a.fromJSON(this.toJSON()),a};var B=f.create(),C=f.fromValues(0,0),D=f.fromValues(0,0);c.prototype.hitTest=function(a,b,c){c=c||0;var d=new m({position:a}),e=new k,l=a,n=0,o=B,p=C,q=D;d.addShape(e);for(var r=this.narrowphase,s=[],t=0,u=b.length;t!==u;t++)for(var v=b[t],w=0,x=v.shapes.length;w!==x;w++){var y=v.shapes[w],z=v.shapeOffsets[w]||p,A=v.shapeAngles[w]||0;f.rotate(o,z,v.angle),f.add(o,o,v.position);var E=A+v.angle;(y instanceof g&&r.circleParticle(v,y,o,E,d,e,l,n,!0)||y instanceof h&&r.particleConvex(d,e,l,n,v,y,o,E,!0)||y instanceof i&&r.particlePlane(d,e,l,n,v,y,o,E,!0)||y instanceof j&&r.particleCapsule(d,e,l,n,v,y,o,E,!0)||y instanceof k&&f.squaredLength(f.sub(q,o,a))<c*c)&&s.push(v)}return s},c.prototype.setGlobalEquationParameters=function(a){a=a||{};for(var b=0;b!==this.constraints.length;b++)for(var c=this.constraints[b],d=0;d!==c.equations.length;d++){var e=c.equations[d];"undefined"!=typeof a.stiffness&&(e.stiffness=a.stiffness),"undefined"!=typeof a.relaxation&&(e.relaxation=a.relaxation),e.needsUpdate=!0}for(var b=0;b!==this.contactMaterials.length;b++){var c=this.contactMaterials[b];"undefined"!=typeof a.stiffness&&(c.stiffness=a.stiffness,c.frictionStiffness=a.stiffness),"undefined"!=typeof a.relaxation&&(c.relaxation=a.relaxation,c.frictionRelaxation=a.relaxation)}var c=this.defaultContactMaterial;"undefined"!=typeof a.stiffness&&(c.stiffness=a.stiffness,c.frictionStiffness=a.stiffness),"undefined"!=typeof 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