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function u(t) {
} //
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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.
Theme challenge of the month: #blacklivesmatter
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remix of d/13495 by u/pavel

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}//
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  • u/jylikangas
    Masterclass in code golfing!
  • u/13thptr
    awesome, looks like the ball escapes without breaking everything after a while though. will read the explanation more thoroughly.
  • u/pavel
    No chars left for bounds checks! It freaks out with negative positions. If I find a way to shorten I will add bounds.
  • u/ersagun
    I need to read and reread that explanation on a loop until I get this. This is incredible.

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  • u/pavel
    Notice how d only takes one argument, and it ignores it.
  • u/KilledByAPixel
    I see what you did there. So many great tricks in this one.
  • u/pavel
    p+=r*=d(p+=r) the inner p+=r increments p and d ends runs with that value, however the outer p+= caches the old value of p so when d resolves the inner p+=r is silently ignored!
  • u/pavel
    #physics

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