#Starfield in 57 bytes! Slow draw but... 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 [deleted]

function u(t) {

x.fillRect(0,i=t*9,F=2e3,F)
x.clearRect(S(i)*1e9%F,i,2,2)

Apr 23 2019 10:53 PM UTC

}// 58/140

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KilledByAPixel: #Starfield in 57 bytes! Slow draw but it will eventually fill in. Thanks to username for removing the parens, plus another byte gained by sacrificing draw speed.

KilledByAPixel: Sorry for the incredibly slow draw speed!
KilledByAPixel: You may be wondering how the stars have different brightness without any code to set color or alpha. That's a very good question...
DataMeta: Reminds me of automated laser sintering


      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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