This works only Fullscreen: you can hoo… by New_Core

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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New_Core

function u(t) {

t==0?a=b=0:c.width|=0;c.onmousemove=e=>(X=e.offsetX,Y=e.offsetY);D=X-a,E=Y-b,Math.sqrt(D*D+E*E)>50?0:(a+=D,b+=E);x.arc(a,b,50,0,7);x.fill()

Apr 28 2017 11:38 AM UTC

}// 139/140

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This works only Fullscreen: you can hook and unhook the ball with your mouse.

u/magna

Hijack S/C instead of X/Y to prevent the initial reference error
u/New_Core

I dont get that Hijack to work.. I made a push ball but it has also reference error before it works so I will not do a remix.. here is code
u/New_Core

t?c.width|=0:a=b=X;c.onmousemove=e=>(X=e.offsetX,Y=e.offsetY);D=X-a,E=Y-b,Math.sqrt(D*D+E*E)<50?(a-=D/9,b-=E/9):0;x.arc(a,b,50,0,7);x.fill()
u/13thptr

#interactive


      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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