#Starfield in 57 bytes! Slow draw but i… 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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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.

show FPS hide FPS share 2 remixes fullscreen

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

}// 57/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#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.

u/KilledByAPixel

Sorry for the incredibly slow draw speed!
u/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...
u/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)

dwitter.net