Try to hover over the circle! Doesn't w… by Jenky

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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Jenky

function u(t) {

w=c.width=568;r=Math.random
t?0:(m=e=>z=[r()*w,r()*w/2])()
onmousemove=e=>{(e.x-z[0])**2+(e.y-z[1])**2<81?m():0}
x.arc(...z,9,0,7);x.fill()

Apr 7 2017 10:31 AM UTC

}// 139/140

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Try to hover over the circle! Doesn't work in fullscreen :'(

u/Jenky

Did make a more game-like version that did work fullscreen at 190 bytes, kept score and everything, but couldn't golf it any lower
u/Jenky

Also this one only works in Chrome again, thanks to e.pageX/pageY being slightly too long
u/donbright

c.width=568 t?0:(m=e=>z=[f=frame%568,(f<<4)%250])() onmousemove=e=>{(e.pageX-z[0])**2+(e.pageY-z[1])**2<81?m():0} x.arc(...z,9,0,7);x.fill()
u/donbright

that is a firefox version :)


      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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