C=64 forever! by danny@hille.dk

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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.

show FPS hide FPS share fullscreen

danny@hille.dk

function u(t) {

for(c.width=160,K=5;K--;)for(i=9;i--;)x.fillStyle=`hsl(${K*50},70%,${99-Math.abs((i-4)*20)}%)`,x.fillRect(0,9+S(C(t/9)+S(t*2-K))*9+i,1920,1)

Jul 14 2020 9:07 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

C=64 forever!

u/danny@hille.dk

i wantet something like this: for(w=c.width=320,x.fillRect(0,0,w,w),q=5;q--;)for(i=9;i--;)x.fillStyle=hsl(${q*50},70%,${99-Math.abs((i-4)*20)}%),x.fillRect(0,9+S(C(t/9)+S(t*2-q))*9+i,1920,1);x.fillText('I ❤️ C=64',140,18)


      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)

dwitter.net