Another remix :-) by danny@hille.dk

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

danny@hille.dk

remix of d/21869 by u/danny@hille.dk

function u(t) {

t?i=1e4:c.width=w=128
for(;i--;x.fillRect(X,Y,1,1))x.fillStyle=R(m=S((Y=i/w)-t*99&(X=i%w)),k=m*255,-k)

Mar 8 2021 5:28 PM UTC

}// 102/140

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

Another remix :-)

u/danny@hille.dk

better version, 98 bytes => t?i=1e4:c.width=w=128 for(;i--;x.fillRect(X,Y,1,1))x.fillStyle=R(X=i%w,m=S((Y=i>>7)-t*w&X)*255,-m)
u/danny@hille.dk

95b =>for(i=1e4,c.width=w=128;i--;x.fillRect(X,Y,1,1))x.fillStyle=R(X=i%w,m=S((Y=i>>7)-t*w&X)*255,-m)


      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