JS1k: The JavaScript code golfing competition

for(_='-1)||7ttribE(IAG,1.^src`.1,jP[i]~+=@or?()K],J.0OerNNtexAER),QQi=0;iU=vec4(Tat%P[i+$ra#M%h.Z=Zabs(vYg.XQXclear,-O4+O8(34962,uffNrog#m(pA.&&()*=Oincre%eShadN=(35631~=Ar#y*Z#ndomK,-O08+O12@$tion0,	^^);}",Q%tach,QshadNSource(,`Qcompile(void maK{gl_$1]-1+2XbD%anew Flo%32(PQ35048QX
with(P=[JA={x:	y:	r:jnx:,ny:},g)`="%tribute vec2 a;PotSize=2.;gl_PosiTa.x,a.yv3vvQ`="F#gCol?T1.^f2ffQp=P(vfQlkPQuseP);f?G=XgetAELoca,"a"U++<1e4;)P.push(,);XbdBXBKQ
vRPotNG,2,5126,	24,0QXenableVRGQXviewp?t(		nNWidth,nNHeightCol?(			1Qfunc rK{f?(requestAnimaF#me(r(16384Qvx=nx-x,vy=ny-y,axYx)>jayYy)>jC=ax&&ayvx3)vy3x@vxy@vyr@vxQ!Cnx=ny=U<6e4;i@6)dx=~-x,dy=-y,D=Zsqrt(dx*dx+dy*dyQ$2]4J$3]5J$4]9,$5]1,D<.x+dx/D*r)=y+dy/D*rQ~2J3J~>7~<-1Q>1=7<-1=1);
d#ws(		1e4)}K;';G=/[
-X-Z#-%TUQRNOJK?@~j`^GE7]/.exec(_);)with(_.split(G))_=join(shift());eval(_)

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

P = [];
      A = {x:.0,y:.0,r:.1,nx:-1+Math.random()*(1- -1),ny:-1+Math.random()*(1- -1)};
      with(g){
        src = 'attribute vec2 a;void main(){gl_PointSize=2.;gl_Position=vec4(a.x,a.y,1.,1.);}';
        vShader = createShader(35633);
        shaderSource(vShader, src);
        compileShader(vShader);
        src = 'void main(){gl_FragColor=vec4(1.,1.,1.,1.);}';
        fShader = createShader(35632);
        shaderSource(fShader, src);
        compileShader(fShader);
        program = createProgram();
        attachShader(program, vShader);
        attachShader(program, fShader);
        linkProgram(program);
        useProgram(program);
      }
      IA = g.getAttribLocation(program, 'a');
      for (i=0;i++<10e3;) {
        P.push(
            -1. + Math.random() * (1. - -1.),
            -1. + Math.random() * (1. - -1.),
            -.04 + Math.random() * (.04 - -.04),
            -.04 + Math.random() * (.04 - -.04),
            -.008 + Math.random() * (.004 - -.008),
            -.008 + Math.random() * (.004 - -.008)
        );
      }
      g.bindBuffer(34962,g.createBuffer());
      g.bufferData(34962,new Float32Array(P),35048);
      g.vertexAttribPointer(IA,2,5126,0,24,0);
      g.enableVertexAttribArray(IA);
      g.viewport(0,0,innerWidth,innerHeight);
      g.clearColor(0.,0.,0.,1.);

      (function _() {
        requestAnimationFrame(_);
        g.clear(16384);

        vx=A.nx-A.x;
        vy=A.ny-A.y;
        ax=Math.abs(vx)>.1;
        ay=Math.abs(vy)>.1;
        C = ax && ay && (vx*=.03) && (vy*=.03) && (A.x+=vx) && (A.y+=vy) &&(A.r+=vx);
        !C && (A.nx=-1+Math.random()*(1- -1)) && (A.ny=-1+Math.random()*(1- -1));

        for (i = 0; i < 60000; i += 6) {
          dx = P[i]-A.x;
          dy = P[i+1]-A.y;
          D = Math.sqrt(dx*dx+dy*dy);
          P[i+2]+=P[i+4];
          P[i+3]+=P[i+5];
          P[i+4]*=.09;
          P[i+5]*=.01;
          (D<0.1)&&(P[i] = A.x+dx/D*A.r)&&(P[i+1] = (A.y+dy/D*A.r));
          P[i]+=P[i+2]; P[i+1]+=P[i+3];
          (P[i]>1) && (P[i]=-1) || (P[i]<-1) && (P[i]=1);
          (P[i+1]>1) && (P[i+1]=-1) || (P[i+1]<-1) && (P[i+1]=1);
        }
        g.bufferData(34962,new Float32Array(P),35048);
        g.drawArrays(0,0,10e3);
      }());