#Liquid Sim 🌊 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

function u(t) {

for(k=(c.width=s=99)*s;--k;!t?T[k]=r%9:p<8&&p&&T[r=k+98+r%3]<7&&(--T[k],++T[r]))r=Math.random(x.fillRect(i=k%s,j=k/s|0,1,(p=T[k])/9))*1e9|0

Jul 27 2020 11:08 PM UTC

}// 139/140

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#Liquid Sim 🌊

Show more comments…
u/tomxor

So cool! haven't seen anything like this before.
u/KilledByAPixel

Thanks! It is an original idea but may have been done before. Need to experiment with it more.
u/tomxor

After pulling it apart this is a lot like the doom fire et al - as an automata it is a non-totalistic anisotropic neighborhood. But having it interact with the static geometry as part of the state is a neat idea. I used a similar technique here: d/18720 but no interesting geometry.
u/tomxor

Now you got me back into automata again :P wondering what other fun anisotropic neighborhoods there might be.
u/donbright

this is incredible
u/sigveseb

This fire stuff is so cool


      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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