JS1k: The JavaScript code golfing competition

O=P=0;a.onmousemove=e=>{O=e.x/29,P=e.y/6};X=(x,y,s,A)=>{c.lineWidth=s/15;
c.strokeStyle=`hsla(${P/9*A+s+R*s/10},99%,50%,.5)`;
c.beginPath(),
c.moveTo(x-s*Math.sin(A)*1.4,y-s*Math.cos(A)*1.4),
c.lineTo(x+s*Math.sin(A)*1.4,y+s*Math.cos(A)*1.4),
c.stroke();c.beginPath(),
c.moveTo(x+s*Math.sin(A)*1.4,y-s*Math.cos(A)*1.4),
c.lineTo(x-s*Math.sin(A)*1.4,y+s*Math.cos(A)*1.4),
c.stroke();B=A+O/999;if(s>10)
X(x-s*Math.sin(A)*1.4,y-s*Math.cos(A)*1.4,s/1.9,B),
X(x+s*Math.sin(A)*1.4,y+s*Math.cos(A)*1.4,s/1.9,B),
X(x+s*Math.sin(A)*1.4,y-s*Math.cos(A)*1.4,s/1.9,B),
X(x-s*Math.sin(A)*1.4,y+s*Math.cos(A)*1.4,s/1.9,B)};
R=0;f=Q=>{R++;c.fillStyle=`hsla(${P*P+R/9},29%,20%,.5)`;c.fillRect(0,0,a.width,a.height);c.drawImage(a,-1,-1,a.width+2,a.height+2);X(a.width/2,a.height/2,a.width/6,R/99)};setInterval(f,9)

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