Vortex of Energy by rodrigo.siqueira

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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rodrigo.siqueira

remix of d/27506 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,w=2e3,w),i=1e4;i--;x.clearRect(960+S(p=t/T(i**2))/(Z=(i/T(t+i)+i*i/380)/i/i),540+C(p)/Z,K=3*S(i+t),K))x.globalAlpha=.1

May 15 2023 8:34 PM UTC

}// 137/140

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Vortex of Energy

u/tomxor

Also Quake1 logo... for a while.
u/deobfuscate

Looks a lot like cooler as fire: x.fillStyle=R() for(x.fillRect(0,0,w=3e3,w),x.fillStyle=R(255,100),i=2e4;i--;x.fillRect(960+S(p=t/T(i**5))/(Z=(i/T(t+i)+i*i/380)/i/i),540+C(p)/Z,K=3*S(i+t),K))x.globalAlpha=.3
u/deobfuscate

(not golfed btw)
u/andrea270872

Wow!
u/jdspugh

Great!


      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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