One character under by Finianb1

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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Finianb1

function u(t) {

c.width|=0
for(i=0;i<20*4;i++){x.fillStyle=`hsl(${i+t*100},100%,50%)`
x.fillRect((i/3)*100+C(4*t+i%4)*10,50*S((i/4)-t)+(500*(i%3)),50,200)}

Oct 18 2018 6:51 PM UTC

}// 139/140

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One character under

u/pavel

-25 with a bunch of tricks for(c.width|=i=80;i--;x.fillRect(i*33+C(4*t+i%4)*9,50*S(i/4-t)+i%3*500,50,200))x.fillStyle=hsl(${i+t*99},99%,50%)
u/Finianb1

Oh, thanks!


      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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