#Rain-Bo! by Xen

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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Xen

remix of d/19211 by u/WasifBoomz

function u(t) {

for(i=21;i--;x.strokeStyle=`hsl(${z},99%,21%,.3)`)x.strokeRect((z=i*69+t*111)%2e3,-2e3,!x.rotate(C(t)/3e3),4e3)

Jun 22 2020 5:19 PM UTC

}// 111/140

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#Rain-Bo!

u/Xen

#Art 113


      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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