28 …ly(this,arguments)}function d(){d.Features.apply(this,arguments)}function h(){h.b2CircleShape.appl…  function
29 this.constructor===h&&this.b2CircleShape.apply(this,arguments)}function l(){l.b2EdgeChainDef.apply(…
43 …lipVertex=Z;Box2D.Collision.Features=d;Box2D.Collision.Shapes.b2CircleShape=h;Box2D.Collision.Shap…
51 …stOutput,Z=Box2D.Collision.b2Segment,d=Box2D.Collision.b2SeparationFunction,h=Box2D.Collision.b2Si…
75 …}}};Box2D.postDefs.push(function(){Box2D.Collision.b2Distance.s_simplex=new h;Box2D.Collision.b2Di…
102 …h.b2Simplex=function(){this.m_v1=new j;this.m_v2=new j;this.m_v3=new j;this.m_vertices=new Vector(…  class
103 …A=w.MulX(f,s);C.wB=w.MulX(r,v);C.w=w.SubtractVV(C.wB,C.wA);this.m_count=1}};h.prototype.WriteCache=
104 …h.prototype.GetSearchDirection=function(){switch(this.m_count){case 1:return this.m_v1.w.GetNegati…
105 …_v1.w.y+this.m_v2.a*this.m_v2.w.y);default:y.b2Assert(false);return new p}};h.prototype.GetWitness…
106 …this.m_v2.wA.y+this.m_v3.a*this.m_v3.wA.y;break;default:y.b2Assert(false)}};h.prototype.GetMetric=…
107 …h.prototype.Solve2=function(){var b=this.m_v1.w,e=this.m_v2.w,f=w.SubtractVV(e,b);b=-(b.x*f.x+b.y*…
145 …h=S.y-0,l=aa*h-Z*d,j=0.5*l;H+=j;u+=j*E*(0+N.x+S.x);D+=j*E*(0+N.y+S.y);N=aa;Z=Z;d=d;h=h;O+=l*(E*(0.…
150 …E+R*R);E/=N;R/=N;for(var S=-R,aa=E,Z=N=Number.MAX_VALUE,d=-Number.MAX_VALUE,h=-Number.MAX_VALUE,l=…
151 …h)h=j}l=(d-N)*(h-Z);if(l<0.95*z){z=l;k.R.col1.x=E;k.R.col1.y=R;k.R.col2.x=S;k.R.col2.y=aa;E=0.5*(N…
182 …Dynamics.b2FixtureDef,Z=Box2D.Dynamics.b2Island,d=Box2D.Dynamics.b2TimeStep,h=Box2D.Dynamics.b2Wor…
185 h.e_newFixture;return c};k.prototype.CreateFixture2=function(a,c){if(c===undefined)c=0;var g=new aa…
236 …s.velocityIterations=a.velocityIterations;this.warmStarting=a.warmStarting};h.b2World=function(){t…  method
237 …h.prototype.b2World=function(a,c){this.m_controllerList=this.m_jointList=this.m_contactList=this.m…
238 h.prototype.SetDestructionListener=function(a){this.m_destructionListener=a};h.prototype.SetContact…
239 …h.prototype.Validate=function(){this.m_contactManager.m_broadPhase.Validate()};h.prototype.GetProx…
241 ….m_prev;if(a==this.m_bodyList)this.m_bodyList=a.m_next;--this.m_bodyCount}};h.prototype.CreateJoin…
242 …ntactList();a;){a.other==g&&a.contact.FlagForFiltering();a=a.next}return c};h.prototype.DestroyJoi…
244 …h.prototype.AddController=function(a){a.m_next=this.m_controllerList;a.m_prev=null;this.m_controll…
245 …h.prototype.DestroyController=function(a){a.Clear();if(a.m_next)a.m_next.m_prev=a.m_prev;if(a.m_pr…
246 …h.prototype.GetBodyCount=function(){return this.m_bodyCount};h.prototype.GetJointCount=function(){…
247 …h.e_newFixture}this.m_flags|=h.e_locked;var b=h.s_timestep2;b.dt=a;b.velocityIterations=c;b.positi…
250 …this.m_bodyList;c;c=c.m_next){e=h.s_xf;e.R=c.m_xf.R;e.position=c.GetWorldCenter();this.m_debugDraw…
251 …h.prototype.QueryShape=function(a,c,g){if(g===undefined)g=null;if(g==null){g=new K;g.SetIdentity()…
252 …ceof S?g.GetUserData(e):null;if(e.TestPoint(c))return a(e);return true},b)};h.prototype.RayCast=fu…
253 …h.prototype.RayCastOne=function(a,c){var g;this.RayCast(function(b,e,f,m){if(m===undefined)m=0;g=b…
254 h.e_locked)>0};h.prototype.Solve=function(a){for(var c,g=this.m_controllerList;g;g=g.m_next)g.Step(…
257 …h.prototype.SolveTOI=function(a){var c,g,b,e=this.m_island;e.Initialize(this.m_bodyCount,A.b2_maxT…
259 …E<r)break;c=m.m_fixtureA;g=m.m_fixtureB;c=c.m_body;g=g.m_body;h.s_backupA.Set(c.m_sweep);h.s_backu…
260 false){c.m_sweep.Set(h.s_backupA);g.m_sweep.Set(h.s_backupB);c.SynchronizeTransform();g.Synchronize…
262 m]=s;++m;s.m_flags|=k.e_islandFlag}}}}}b=h.s_timestep;b.warmStarting=false;b.dt=(1-r)*a.dt;b.inv_dt…
263 …()}}};h.prototype.DrawJoint=function(a){var c=a.GetBodyA(),g=a.GetBodyB(),b=c.m_xf.position,e=g.m_…
264 …wSegment(f,m,r);g!=this.m_groundBody&&this.m_debugDraw.DrawSegment(e,m,r)}};h.prototype.DrawShape=…
269 aa=Box2D.Collision.b2ContactID,Z=Box2D.Collision.b2Manifold,d=Box2D.Collision.b2TimeOfImpact,h=Box2…
278 …cts.b2Contact.e_filterFlag=64;Box2D.Dynamics.Contacts.b2Contact.s_input=new h});U.b2ContactConstra…
323 …se=0};U.prototype.InitVelocityConstraints=function(d){var h,l=0,j=this.m_bodyA,o=this.m_bodyB;h=j.…
324 …h.col1.x*q+h.col2.x*n;n=h.col1.y*q+h.col2.y*n;q=l;h=o.m_xf.R;var a=this.m_localAnchor2.x-o.m_sweep…
325 h=j.m_invMass+j.m_invI*h*h+o.m_invMass+o.m_invI*g*g;this.m_mass=h!=0?1/h:0;if(this.m_frequencyHz>0)…
326 …h;j.m_angularVelocity-=j.m_invI*(q*h-n*d);o.m_linearVelocity.x+=o.m_invMass*d;o.m_linearVelocity.y…
327 …h.m_linearVelocity.x+-h.m_angularVelocity*o))+this.m_u.y*(l.m_linearVelocity.y+l.m_angularVelocity…
328 …h.m_angularVelocity-=h.m_invI*(j*q-o*d);l.m_linearVelocity.x+=l.m_invMass*d;l.m_linearVelocity.y+=…
329 …h.m_sweep.c.x-j;var c=l.m_sweep.c.y+a-h.m_sweep.c.y-o;d=Math.sqrt(q*q+c*c);q/=d;c/=d;d=d-this.m_le…
330 l.m_sweep.a+=l.m_invI*(n*c-a*q);h.SynchronizeTransform();l.SynchronizeTransform();return y.Abs(d)<F…
331 this.frequencyHz=0};p.prototype.Initialize=function(d,h,l,j){this.bodyA=d;this.bodyB=h;this.localAn…  argument
334 …h,l=0,j=this.m_bodyA,o=this.m_bodyB;h=j.m_xf.R;var q=this.m_localAnchorA.x-j.m_sweep.localCenter.x…
335 …h+l;e.col2.x=0;e.col1.y=0;e.col2.y=h+l;e.col1.x+=g*n*n;e.col2.x+=-g*q*n;e.col1.y+=-g*q*n;e.col2.y+…
336 …h*d.y;j.m_angularVelocity-=g*(q*d.y-n*d.x+this.m_angularImpulse);o.m_linearVelocity.x+=l*d.x;o.m_l…
337 …h.col1.x*m+h.col2.x*r;r=h.col1.y*m+h.col2.y*r;m=l;h=o.m_xf.R;var s=this.m_localAnchorB.x-o.m_sweep…
338 …h);h=d.dt*this.m_maxForce;if(this.m_linearImpulse.LengthSquared()>h*h){this.m_linearImpulse.Normal…
339 …maxTorque=this.maxForce=0};Q.prototype.Initialize=function(d,h,l){this.bodyA=d;this.bodyB=h;this.l…  argument
341 …h=this.m_bodyB.m_xf.R,l=this.m_localAnchor1.x-this.m_bodyB.m_sweep.localCenter.x,j=this.m_localAnc…
342 …h=parseInt(d.joint1.m_type),l=parseInt(d.joint2.m_type);this.m_prismatic2=this.m_revolute2=this.m_…
344 …tio*o;this.m_impulse=0};V.prototype.InitVelocityConstraints=function(d){var h=this.m_ground1,l=thi…
345 …h=h.m_xf.R;n=this.m_prismatic1.m_localXAxis1;q=h.col1.x*n.x+h.col2.x*n.y;n=h.col1.y*n.x+h.col2.y*n…
346 …h=l.m_xf.R;n=this.m_prismatic2.m_localXAxis1;q=h.col1.x*n.x+h.col2.x*n.y;n=h.col1.y*n.x+h.col2.y*n…
347 …pulse=0};V.prototype.SolveVelocityConstraints=function(){var d=this.m_bodyA,h=this.m_bodyB,l=-this…
348 …h.m_linearVelocity,h.m_angularVelocity);this.m_impulse+=l;d.m_linearVelocity.x+=d.m_invMass*l*this…
349 …*l*this.m_J.angularA;h.m_sweep.c.x+=h.m_invMass*l*this.m_J.linearB.x;h.m_sweep.c.y+=h.m_invMass*l*…
350 h.SynchronizeTransform();return 0<F.b2_linearSlop};Box2D.inherit(M,Box2D.Dynamics.Joints.b2JointDef…
351 …h,l,j){if(h===undefined)h=0;if(j===undefined)j=0;this.linearA.SetV(d);this.angularA=h;this.linearB…  argument
353 …h=null;switch(d.type){case I.e_distanceJoint:h=new U(d instanceof p?d:null);break;case I.e_mouseJo…
354 …;break;case I.e_weldJoint:h=new aa(d instanceof Z?d:null);break;case I.e_frictionJoint:h=new B(d i…
358 …unction(){var d=this.m_bodyA,h=this.m_bodyB,l=d.GetWorldPoint(this.m_localAnchor1),j=h.GetWorldPoi…
359 …h+d.y*l};k.prototype.GetJointSpeed=function(){var d=this.m_bodyA,h=this.m_bodyB,l;l=d.m_xf.R;var j…
360 …nearVelocity,b=h.m_linearVelocity;d=d.m_angularVelocity;h=h.m_angularVelocity;return l*-d*c.y+q*d*…  argument
361 h){if(d===undefined)d=0;if(h===undefined)h=0;this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true…
363 …type.InitVelocityConstraints=function(d){var h=this.m_bodyA,l=this.m_bodyB,j,o=0;this.m_localCente…
364 …h.GetTransform();l.GetTransform();j=h.m_xf.R;var n=this.m_localAnchor1.x-this.m_localCenterA.x,a=t…
365 l.m_invMass;this.m_invIA=h.m_invI;this.m_invIB=l.m_invI;this.m_axis.SetV(y.MulMV(q.R,this.m_localXA…
368 …Impulse+this.m_impulse.y)*this.m_a2;h.m_linearVelocity.x-=this.m_invMassA*d;h.m_linearVelocity.y-=…
369 …ototype.SolveVelocityConstraints=function(d){var h=this.m_bodyA,l=this.m_bodyB,j=h.m_linearVelocit…
372 …h.m_linearVelocity.SetV(j);h.m_angularVelocity=o;l.m_linearVelocity.SetV(q);l.m_angularVelocity=n}…
376 …;o.y+=this.m_invMassB*c;q+=this.m_invIB*r;d.m_sweep.a=j;h.m_sweep.a=q;d.SynchronizeTransform();h.S…
378 …eed=this.maxMotorForce=0};z.prototype.Initialize=function(d,h,l,j){this.bodyA=d;this.bodyB=h;this.…  argument
381 …h=this.m_target.x-this.m_bodyB.m_xf.position.x,l=this.m_target.y-this.m_bodyB.m_xf.position.y,j=th…
382 …h.m_xf.R;l=this.m_localAnchor.x-h.m_sweep.localCenter.x;j=this.m_localAnchor.y-h.m_sweep.localCent…
383 …h.m_sweep.c.x+l-this.m_target.x;this.m_C.y=h.m_sweep.c.y+j-this.m_target.y;h.m_angularVelocity*=0.…
384 …h.m_xf.R;var q=this.m_localAnchor.x-h.m_sweep.localCenter.x,n=this.m_localAnchor.y-h.m_sweep.local…
385 …lse.x-l;o=this.m_impulse.y-j;h.m_linearVelocity.x+=h.m_invMass*a;h.m_linearVelocity.y+=h.m_invMass…
388 …h=this.m_bodyB,l=d.GetWorldPoint(this.m_localAnchor1),j=h.GetWorldPoint(this.m_localAnchor2);h=j.x…
389 …h.m_xf.R;var n=this.m_localAnchor2.x-h.m_sweep.localCenter.x,a=this.m_localAnchor2.y-h.m_sweep.loc…
390 …h){if(d===undefined)d=0;if(h===undefined)h=0;this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(tru…  argument
393 …h=this.m_bodyA,l=this.m_bodyB,j,o=0;this.m_localCenterA.SetV(h.GetLocalCenter());this.m_localCente…
394 …l.m_sweep.c.x+c-h.m_sweep.c.x-n;o=l.m_sweep.c.y+g-h.m_sweep.c.y-a;this.m_invMassA=h.m_invMass;this…
398 …Impulse+this.m_impulse.z)*this.m_a2;h.m_linearVelocity.x-=this.m_invMassA*d;h.m_linearVelocity.y-=…
399 …ototype.SolveVelocityConstraints=function(d){var h=this.m_bodyA,l=this.m_bodyB,j=h.m_linearVelocit…
402 …x+=this.m_invMassB*a;q.y+=this.m_invMassB*c;n+=this.m_invIB*b;h.m_linearVelocity.SetV(j);h.m_angul…
403 this.m_bodyA,h=this.m_bodyB,l=d.m_sweep.c,j=d.m_sweep.a,o=h.m_sweep.c,q=h.m_sweep.a,n,a=0,c=0,g=0,b…
407 …;o.y+=this.m_invMassB*c;q+=this.m_invIB*m;d.m_sweep.a=j;h.m_sweep.a=q;d.SynchronizeTransform();h.S…
409 0};O.prototype.Initialize=function(d,h,l,j){this.bodyA=d;this.bodyB=h;this.localAnchorA=this.bodyA.…  argument
411 …or1),h=d.x-(this.m_ground.m_xf.position.x+this.m_groundAnchor1.x);d=d.y-(this.m_ground.m_xf.positi…
412 h=d.x-(this.m_ground.m_xf.position.x+this.m_groundAnchor2.x);d=d.y-(this.m_ground.m_xf.position.y+t…
414 function(d){var h=this.m_bodyA,l=this.m_bodyB,j;j=h.m_xf.R;var o=this.m_localAnchor1.x-h.m_sweep.lo…
415 this.m_groundAnchor2.y;this.m_u1.Set(h.m_sweep.c.x+o-(this.m_ground.m_xf.position.x+this.m_groundAn…
416 ….m_u1.y-q*this.m_u1.x;n=a*this.m_u2.y-c*this.m_u2.x;this.m_limitMass1=h.m_invMass+h.m_invI*j*j;thi…
417 …m_limitImpulse2)*this.m_u2.y;h.m_linearVelocity.x+=h.m_invMass*d;h.m_linearVelocity.y+=h.m_invMass…
418 …h=this.m_bodyB,l;l=d.m_xf.R;var j=this.m_localAnchor1.x-d.m_sweep.localCenter.x,o=this.m_localAnch…
419 …_linearVelocity.y+d.m_angularVelocity*j;c=h.m_linearVelocity.x+-h.m_angularVelocity*a;g=h.m_linear…
420 …Velocity+=d.m_invI*(j*q-o*l);h.m_linearVelocity.x+=h.m_invMass*c;h.m_linearVelocity.y+=h.m_invMass…
421 …f(this.m_limitState2==I.e_atUpperLimit){c=h.m_linearVelocity.x+-h.m_angularVelocity*a;g=h.m_linear…
422 …h.m_linearVelocity.x+=h.m_invMass*c;h.m_linearVelocity.y+=h.m_invMass*g;h.m_angularVelocity+=h.m_i…
423 …h.m_xf.R;g=this.m_localAnchor2.x-h.m_sweep.localCenter.x;b=this.m_localAnchor2.y-h.m_sweep.localCe…
424 …vMass*e;d.m_sweep.a+=d.m_invI*(a*e-c*l);h.m_sweep.c.x+=h.m_invMass*f;h.m_sweep.c.y+=h.m_invMass*m;…
425 h.SynchronizeTransform()}if(this.m_limitState1==I.e_atUpperLimit){l=d.m_xf.R;a=this.m_localAnchor1.…
426 …h.m_xf.R;g=this.m_localAnchor2.x-h.m_sweep.localCenter.x;b=this.m_localAnchor2.y-h.m_sweep.localCe…
427 …m*this.m_u2.x;m=-m*this.m_u2.y;h.m_sweep.c.x+=h.m_invMass*f;h.m_sweep.c.y+=h.m_invMass*m;h.m_sweep…
429 function(d,h,l,j,o,q,n){if(n===undefined)n=0;this.bodyA=d;this.bodyB=h;this.groundAnchorA.SetV(l);t…
432 …;N.prototype.SetLimits=function(d,h){if(d===undefined)d=0;if(h===undefined)h=0;this.m_lowerAngle=d…  argument
434 …nction(d){var h=this.m_bodyA,l=this.m_bodyB,j,o=0;j=h.m_xf.R;var q=this.m_localAnchor1.x-h.m_sweep…
435 …ter.y;o=j.col1.x*a+j.col2.x*c;c=j.col1.y*a+j.col2.y*c;a=o;j=h.m_invMass;o=l.m_invMass;var g=h.m_in…
436 …Motor==false)this.m_motorImpulse=0;if(this.m_enableLimit){var e=l.m_sweep.a-h.m_sweep.a-this.m_ref…
437 …*=d.dtRatio;d=this.m_impulse.x;e=this.m_impulse.y;h.m_linearVelocity.x-=j*d;h.m_linearVelocity.y-=…
438 …h=this.m_bodyA,l=this.m_bodyB,j=0,o=j=0,q=0,n=0,a=0,c=h.m_linearVelocity,g=h.m_angularVelocity,b=l…
439 …m_limitState!=I.e_inactiveLimit){d=h.m_xf.R;o=this.m_localAnchor1.x-h.m_sweep.localCenter.x;q=this…
441 …impulse3.x+this.impulse3.z)}else{d=h.m_xf.R;o=this.m_localAnchor1.x-h.m_sweep.localCenter.x;q=this…
443 …h.m_linearVelocity.SetV(c);h.m_angularVelocity=g;l.m_linearVelocity.SetV(b);l.m_angularVelocity=e}…
444 …nizeTransform()}h=l.m_xf.R;c=this.m_localAnchor1.x-l.m_sweep.localCenter.x;d=this.m_localAnchor1.y…
445 …h.col1.y*c+h.col2.y*d;c=q;h=j.m_xf.R;var g=this.m_localAnchor2.x-j.m_sweep.localCenter.x,b=this.m_…
447 …j.m_invI*(g*a-b*n);l.SynchronizeTransform();j.SynchronizeTransform();return h<=F.b2_linearSlop&&o<…
448 …or=this.enableLimit=false};S.prototype.Initialize=function(d,h,l){this.bodyA=d;this.bodyB=h;this.l…  argument
450 …o();this.m_mass=new K};aa.prototype.InitVelocityConstraints=function(d){var h,l=0,j=this.m_bodyA,o…
451 h=j.m_xf.R;var q=this.m_localAnchorA.x-j.m_sweep.localCenter.x,n=this.m_localAnchorA.y-j.m_sweep.lo…
452 …h+l+q*q*g+a*a*b;this.m_mass.col3.y=q*g+a*b;this.m_mass.col1.z=this.m_mass.col3.x;this.m_mass.col2.…
453 …h=0,l=this.m_bodyA,j=this.m_bodyB,o=l.m_linearVelocity,q=l.m_angularVelocity,n=j.m_linearVelocity,…
454 …h=d.col1.x*r+d.col2.x*s;s=d.col1.y*r+d.col2.y*s;r=h;d=n.x-a*s-o.x+q*m;h=n.y+a*r-o.y-q*f;var v=a-q,…
455 …h=d.col1.x*o+d.col2.x*q;q=d.col1.y*o+d.col2.y*q;o=h;d=j.m_xf.R;var n=this.m_localAnchorB.x-j.m_swe…
456 …h+q*q*c+a*a*g;this.m_mass.col2.x=-q*o*c-a*n*g;this.m_mass.col3.x=-q*c-a*g;this.m_mass.col1.y=this.…
458 0};Z.prototype.Initialize=function(d,h,l){this.bodyA=d;this.bodyB=h;this.localAnchorA.SetV(this.bod…  argument