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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.
Current theme challenge: #ScaryMovies
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  • Vertigo 🔔

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  • Dare you say his name 5 times... 🐝 #ScaryMovies
  • u/danny@hille.dk
    A movie reference for a movie that premiered 21 years ago... -> ofcourse you got my awesome
  • u/magna
    CANDYMAN

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  • Tiny Tree Lake

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  • Spiral Makes Circle Moiré
  • u/magna
    Awesome! Also, ouch my eyes.

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  • Tiny Tree Lake 🌲 Golfed by pavel, gibson042, yonatan, tomxor, and me
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  • u/rep_movsd
    for(X=t&&X+r*25,i=h=6+2*C(t*5)<<6;--i;x.fillRect(...t?[X-r*i/8,600+(r*8&3?i-h:h-i),i/4,2]:[i*8,r*h,h,r]))r=1+S(i^X)
  • u/rep_movsd
    for(X=t&&X+r*25,i=h=6+2*C(t*5)<<6;--i;x.fillRect(...t?[X-r*i/8,600+(r*8&3?i-h:h-i),i/4,2]:[i*8,r*h,h,r]))r=1+S(i^X)
  • u/KilledByAPixel
    great attempt! not sure it is possible to get smaller without cutting something. in this case the X%4 part is necessary to make the trees varying heights
  • u/FireFly
    "boring" -1, distribute the ?: across args in the fillRect: x.fillRect(t?X-r*i/8:i*8,t?600+(r*8&3?i-h:h-i):r*600,t?i/4:h,t?2:r). Or more depending on what artistic tradeoffs you're okay with, e.g. just always setting height to r isn't terrible

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  • Moiré Waves
  • u/sigveseb
    Wow, somehow this one looks the same in fullscreen too for me. I was expecting it to have completely different patterns because of the moire effect!
  • u/theonewhostands
    May I ask why you used 'c.width|=0'? to my understanding, it should always return the same value. 1920 | 0 = 1920
  • u/danny@hille.dk
    when you set the with of a canvas, the canvas is reset/cleared, c.width|=0 is 2 char shorter than c.width=1920
  • u/theonewhostands
    Interesting. I understand now. Thank you very much!
  • u/magna
    Whoa!

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  • Treescape 🌲

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