C64 style copperbars/rasterbars 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

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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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danny@hille.dk

function u(t) {

eval(unescape(escape`景爨眽挮睩摴栽㘴ⱸ⹦楬汒散琨〬〬眬眩ⱋ㴵㭋ⴭ㬩景爨椽㤻椭ⴻ⥸⹦楬汓瑹汥㵠桳氨⑻䬪㔰紬㜰┬⑻㤹ⵍ慴栮慢猨⡩ⴴ⤪㈰⥽┩怬砮晩汬剥捴⠰ⰹ⭓⡃⡴⼹⤫匨琪㈭䬩⤪㤫椬眬ㄩ㭸⹦楬汔數琨❃㴶㐧ⰱ㠬ㄸ⤻`.replace(/u(..)/g,"$1%")))

Jul 14 2020 9:21 AM UTC

}// 140/140

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C64 style copperbars/rasterbars

u/Xen

love it
u/danny@hille.dk

much better version:for(w=c.width=200,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,w,1);x.fillText('C64',94,18)
u/marc8

#c64


      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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