Cylinder Waffles 🧇 by KilledByAPixel

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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KilledByAPixel

remix of d/33857 by u/lewdev

function u(t) {

for(i=70,x.font="6em'";i--;x.fillText('🧇',i*99,90))x.drawImage(c,0,(i+t*60)%99,2e3,1,-99-(1e3-(i-35)**2)**.5*9,i*9+199,8e3,9)

May 26 2025 4:38 PM UTC

}// 125/140

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Cylinder Waffles 🧇

u/lewdev

Nice! You got the curvature much better than mine!
u/lewdev

I need to figure out why 1e3-(i-35)**2)**.5*9 equates to a half circle pattern.
u/KilledByAPixel

it's the pythagorean theorem! rearranged to the form (c**2-a**2)**.5 = b, you can use similar math to draw a circle


      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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