Kufic-esque Redux by BriSeven

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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BriSeven

remix of d/33625 by u/BriSeven

function u(t) {

eval(unescape(escape`吽晲慭攊䌽吥㔊刽启㕼《䄽䌪㈫㐊楦⠡琩愽《楦⠡䌩愽愾㸱ੌ㵍慴栮牡湤潭⠩⨲㰼㍼愾㹁ⴳ☷੖㴳㈰㠵㸾䰦ㄊ愽愦縨ㄼ㱁⥼嘼㱁੸⹦楬汒散琨ㄹ㈰ⵒ┲㔵⨹Ⱘ㔭䌩⨹⬨刯㈵㕼〩⨵㐬㤪嘬㤩`.replace(/u([^D].)/g,'$1%')))

Apr 23 2025 8:46 AM UTC

}// 133/140

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Kufic-esque Redux

u/BriSeven

Brought it down from 177 to 164 characters by switching the memory from an array to an int, and using bit shifting instead. Got rid of a lot of array operations by making my lookup index into 3 consecutive bits on the int. I saved enough bytes to be able to rearrange the offsets to fill the screen.
u/BriSeven

The dark underline on the previous go was a bug, a nice one. but unfortunately I ended up fixing it.
u/BriSeven

Oh, but you can recreate the bug by changing A=C*2+4 to A=C*2+2`
u/BriSeven

146.. so close! a=t?a:0 T=255 for(C=5;C--;x.fillRect(T*8-t*60%T*8,(5-C)*8+(t*60/T|0)*60,8*V,8))C||(a>>=1),A=C*2+2,V=32085>>(a*t&1<<3|a>>A-3&7)&1,a=a&~(1<<A)|V<<A;
u/warbino

@u/BriSeven 👍


      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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