d/4739 by mohd-akram

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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mohd-akram

function u(t) {

c.width+=0;x.fillRect(0,0,1920,1080);θ=5/7*S(9*t)**2;x.strokeStyle='#ff0';x.lineWidth=99;d=1e3;x.arc((t*d)%3e3-d,540,50,θ,-θ);x.stroke()

Dec 29 2017 9:51 PM UTC

}// 136/140

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u/quuxman

I was hoping to shrink it to the point of adding little dots, but I don't think it's possible
u/quuxman

I was hoping to shrink it to the point of adding little dots, but I don't think it's possible
u/quuxman

c.width+=0 x.fillRect(0,0,w=2e3,w) x.fillStyle='#ff0' x.moveTo(a=t*500%w,b=540) x.arc(a,b,100,m=S(t*15)*.4+.4,-m) x.fill()
u/mohd-akram

Yeah, that was my initial goal :D
u/mohd-akram

c.width+=0;x.fillRect(0,0,w=2e3,w);y=540;t=t*y%w;for(i=w;i>=0;i-=5e2)if(!i||t<i)x.beginPath(),x.lineWidth=l=i?20:99,x.arc(i||t,y,l/2,m=i?.01:S(t/l*2)**2,-m),x.strokeStyle=R(y,y,i&&y),x.stroke()
u/joeytwiddle

You could post the "too long" version on codegolf.tk if you like :)


      u(t) is called 60 times per second.
      t: elapsed time in seconds.
      c: A 1920x1080 canvas.
      x: A 2D context for that canvas.
      S: Math.sin
      C: Math.cos
      T: Math.tan
      R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)

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