Pulsar v2 by erin

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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erin

remix of d/21439 by u/erin

function u(t) {

c.width=w=70;for(i=2800;i--;)x.fillRect(X=i%w,Y=i/w,X/15+1*C(Y/6.5)+C(X/7-5*t),1),x.fillStyle=`hsla(${U=i/9+S(t+i)*9},5%,50%,${C(U+i)+1})`

Jan 25 2021 2:15 AM UTC

}// 138/140

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Pulsar v2

u/andrea270872

very cool. It makes me thing of some retro tv intro, like from Dr Who! Great


      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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