Fixed the annoying black dot in the ori… by lurifax

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

lurifax

remix of d/3221 by u/lurifax

function u(t) {

c.width|=0;for(j=361;--j;x.fillRect(960+500*S(d=j/56)*C(e=t+j%4*.785),540+500*C(d)*S(e),9,9))x.fillStyle=`hsl(${j},99%,50%`

Oct 3 2017 8:16 PM UTC

}// 123/140

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

Fixed the annoying black dot in the original and golfed 17b :)

u/Xen

you can get it to 115b ;-)
u/lurifax

Oh, interesting! Hmm, can you give a hint Xen? :)
u/lurifax

Got in down to 116b, thanks for the encouragement Xen: for(c.width|=j=360;--j;x.fillRect(960+500*S(d=j/54)*C(e=t+j%3),540+500*C(d)*S(e),9,9))x.fillStyle=hsl(${j},99%,50%
u/lurifax

Still can't find the last byte though :)
u/joeytwiddle

Could j start off with a higher value? ;)


      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