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CANVAS DEMO RAMBLING ASTEROID BY SOLETODOPES .pdf


Original filename: CANVAS DEMO RAMBLING ASTEROID BY SOLETODOPES.pdf

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CANVAS DEMO ASTEROID510 ZOOM D60
<g></script><canvas id=6 width="1300" height="1300">
<script type="text/javascript">;vb=[];ve=[];pz=[];ps=[];pc=[];
tc=rc=0.8;canvas=document.getElementById(6);
dm();tn=canvas.getContext('2d');tn.translate(600,600);
ws();function
ws(){tn.clearRect(-1000,-1000,2000,2000);tc+=0.012;ra=Math.sin(rc);
pa=Math.cos(rc);rb=Math.sin(tc);pb=Math.cos(tc);gb=500;var
de=[];while(gb--){
ge=vb[gb];gs=ve[gb];gp=pz[gb];me=pb*gp*ge;mc=rb*gp;ma=pa*gs-me;
sc=250/(250+me);ge=mc*sc;gs=ma*sc;gp=mc;sr=22;if(!de[sr]){de[sr]=[];
}de[sr].push([ge,gs,sc]);}rs=0;var
ms=400;while(gb<ms){if(de[gb]){rs=de[gb].length;
while(rs--){pe=de[gb][rs];tn.save();tn.translate
(pe[0],pe[1]);tn.scale(pe[2],pe[2]);pr(pe[3]);tn.restore();}}gb++;
}setTimeout(ws,25);}function pr(){tn.fillStyle='#20e';ce(4);}function ce()
{tn.beginPath();tn.arc(0,0,6,0,8);tn.fill();}function dm()
{em=500;while(em--){vb.push(Math.cos(em)*200);ve.push(Math.random()*130
-400);
pz.push(40);ps.push(1.2);}}</script></html>

BY SOLETODOPES


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