var centi;
window.onload = function(){
  var prog = 'sz(1,1) bg(0) NUM=(200) a=([]) for(i,0,NUM) {a[i]=vec2(rnd(w),h+rnd(h)) a[i].vx=(0) a[i].vy=(0) a[i].r=rnd(8,30) } frame() {col(0,40) rect(0,0,w,h) tree(a) for(i,0,NUM) {x=(a[i].x) y=(a[i].y) vx=(a[i].vx) vy=(a[i].vy) r=(a[i].r) b=nears(a[i],10,3600) nn=(b.length) for(j,0,nn) {p=(b[j][0]) d=sqrt(b[j][1]) if((d>0) && (d<r+p.r)) {vx-=((p.x-x)*0.04) vy-=((p.y-y)*0.04) } } if(y<cy) {vy+=(1) } else {vy-=(1/2) vx+=(nz(x*0.001,y*0.003,c*0.01)*GOLD) vy+=(nz(y*0.002,x*0.003,c*0.02)*2) } x+=(vx) y+=(vy) if((x<0)||(x>w)){x=rnd(w)} a[i].x=(x) a[i].y=(y) a[i].vx=(vx*0.9) a[i].vy=(vy*0.97) col(nn*24,nn*20+60,nn*10+150) oval(x,y,r) } }';

  var canvas = document.getElementById('c');

  centi = new Centi("centi");
  centi.init(canvas, getAudioContext());
  centi.parse(prog);
  centi.start();

  requestAnimationFrame(update);

  function update(){
    requestAnimationFrame(update);
    centi.update();
  }
  
  if ( window.addEventListener ) {
    window.addEventListener('resize', onResize, false);
  } else if ( window.onresize ) {
    window.onresize = onResize;
  }
  
  function onResize(){
     centi.size(centi.sizeW, centi.sizeH);
  }
};