city walk with alpha ^^ by UEZ

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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UEZ

remix of d/24233 by u/TGY

function u(t) {

for(c.width=i=1e3;i--;x.fillRect(S(i^9)*99*m+500+S(t*3)*200,400+m+S(t*6)*59,m*3,-m*9))m=200/(99-(t+i)%99),x.fillStyle=R(0,0,0,1-m/255)

Oct 27 2021 7:06 AM UTC

}// 134/140

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city walk with alpha ^^

u/ciaccodavide

nice! I made it faster and with less head bobbing ;) for(c.width=i=1e3;i--;x.fillRect(S(i^9)*99*m+500+S(t*3)*33,400+m+S(t*6)*9,m*3,-m*9))m=200/(99-(t*9+i)%99),x.fillStyle=R(0,0,0,1-m/255)


      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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