d/2819 by toha73

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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toha73

remix of d/2818 by u/toha73

function u(t) {

c.width=128
for(j=0;j<1;j+=.02)for(i=0;i<1;i+=.02){
v=S(10*(i*S(t/.5)+j*C(t/.4))+t)
x.fillStyle=R(0,0,0,v/2+.5)
x.fillRect(i*128,j*64,2,2)}

Jun 30 2017 4:04 PM UTC

}// 139/140

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u/donbright

so smooth!
u/Xen

so it fits 138bytes: W=c.width=128;for(j=0;j<1;j+=.02)for(i=0;i<1;i+=.02){v=S(10*(i*S(t/.5)+j*C(t/.4))+t);x.fillStyle=R(0,0,0,v/2+.5);x.fillRect(i*W,j*64,2,2)}
u/Xen

strange, said 143bytes at first, glitch on site?? :-/


      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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