why does this do this by hells-fargo

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 fullscreen

hells-fargo

function u(t) {

c.width=1920
x.fillRect(960,Math.hypot((500/t)*S(t*1.5)),50,50)
// i cant make the block fall the right way
// itll either go up or vanish

Jan 29 2024 8:31 PM UTC

}// 138/140

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

why does this do this

u/timothytomato

you could replace it with 1030-Math.hypot((500/t)*S(t*1.5)). the y coordinates for canvas is flipped, so the higher up something is the lower the y is, so subtracting from 1030 flips it back.
u/hells-fargo

why didntr i think of that 6 hours ago


      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