JS1k: The JavaScript code golfing competition

Q=e=[];M=Math;A=function(d,n){return new V(d,n)};V=function(d,n){this.a=d;this.b=n};V.prototype={e:function(d){return A(this.a+d.a,this.b+d.b)},l:function(d){return A(this.a-d.a,this.b-d.b)},h:function(){return M.sqrt(this.a*this.a+this.b*this.b)},k:function(){return this.c(1/this.h())},c:function(d){return A(this.a*d,this.b*d)}};B=function(d,n,o){G=this;G.d=d;G.g=n;G.f=o};
B.prototype={i:function(d){g=6.67E-11;k=d.d.l(this.d);N=k.h();f=g*this.f*d.f/(N*N);return k.k().c(f)},j:function(d,n){G=this;a=d.c(1/G.f);G.g=G.g.e(a.c(n));G.d=G.d.e(G.g.c(n))}};
top.onload=function(d){c=document.body.children[0];c.width=c.height=800;c=c.getContext("2d");t=h=0.5;l=400;S=[[l,0,0,3E12],[500,1,-h,3E4],[100,h,0.3,30]];for(i=0;i<3;i++)Q[i]=new B(A(S[i][0],l),A(S[i][1],S[i][2]),S[i][3]);setInterval(function(){c.globalAlpha=0.15;m=t;d[0]=d[1]=d[2]=A(0,0);for(i=0;i<3;i++)for(j=0;j<3;j++)if(i!==j)d[i]=d[i].e(Q[i].i(Q[j]));for(i=0;i<3;i++)Q[i].j(d[i],m);m=c;for(i=0;i<3;i++){b=Q[i].d;m.fillRect(b.a,b.b,1,1)}t+=1.0E-4},1)};

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