d/2938 by kchplr

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 1 remix fullscreen

kchplr

remix of d/2842 by u/alien

function u(t) {

c.width=120
for(j=0;j<68;j++)
for(i=0;i<120;i++){
q=(i*i*j*j*8+frame*8)&768
s=100*C(q)%255
s<0&&x.fillRect(i,j,1,1)}

Jul 24 2017 9:36 PM UTC

}// 117/140

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

u/alien

:D!!!
u/Xen

95bytes for you: c.width=123;for(j=70;j--;)for(i=130;i--;s=C(q=(i*i*j*j*8+frame*9)&768)<0&&x.fillRect(i,j,1,1));
u/Xen

95bytes for you: c.width=123;for(j=70;j--;)for(i=130;i--;s=C(q=(i*i*j*j*8+frame*9)&768)<0&&x.fillRect(i,j,1,1));
u/kchplr

81bytes for me :p : for(c.width=i=130;i--;)for(j=70;j--;)x.fillRect(i,j,1,C(i*i*j*j*8+frame*8&768)<0)


      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