City Outskirts by KilledByAPixel

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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KilledByAPixel

remix of d/15354 by u/KilledByAPixel

function u(t) {

for(w=i=125;i--;)for(j=0;j<8;x.fillRect(i*20,j++?w*j+299*C((t*j*j+i/j|0)**3)/j:0,20,3e3))x.fillStyle=`hsl(${j**4-149} ${j*7}%${29*C(j)+39}%`

Jan 27 2020 1:44 AM UTC

}// 140/140

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City Outskirts

u/tomxor

Nice, you got the colours just right, I couldn't quite figure that bit out. #city
u/pavel

Just a black screen on Safari
u/KilledByAPixel

fixing up the hsl to have commas and closing paren may fix some browsers
u/tomxor

Safari is wrong, they should this dweet as a unit test :)


      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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