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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.
Current theme challenge: #ScaryMovies
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remix of d/24213 by u/magna

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  • #interactive version of Magna's mandelbrot renderer: click to make it do one more rectangle per frame
  • u/Agnes
    Uncompressed: for(r=Math.random,c.onclick=e=>M++,m=M=t?M:1;m--;x.fillStyle="#"+j,x.fillRect(e*480,f*482,++s,s))for(e=r(f=r(a=b=0)*9/4)*4,X=e-2.8,Y=f-9/8,j=999;a*a+b*b<=4&&j--;s=999/t)[a,b]=[a*a-b*b+X,2*a*b+Y]
  • u/Agnes
    If it's not clear, spam click to make it speed up a bunch until your computer can't handle it anymore
  • u/Xen
    love it!

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  • u/Agnes
    I don't usually post compressed dweets but this one was very boring without the interactive part, and I don't think it's possible in 140.

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  • Drop shadow #default (very simple)

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  • Fillbots (kind of)
  • u/Agnes
    Missing the hose and the filling of red liquid between t=4 and t=5 but I'm never getting either of those in the remaining 22 characters.

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  • u/danny@hille.dk
    just an idea ->c.width=300;for(i=9;i--;x.fillStyle='#a72')x.fillText("🖐",i*19+72+19*S(t),70-2*C(t+i));for(i=19;i--;)x.fillRect(i*16,70-T(i+12)/4,15.5,2e3)
  • u/Agnes
    Oh, like they're reaching over a fence? That's a fun interpretation, I was going for "hands poking out of dirt" but obviously a brown rectangle can be anything.

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  • I've always wondered what was inside those default bars #scarymovies

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  • #time flies like an arrow

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remix of d/22606 by u/Agnes

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  • Higher-res (2.5x in both directions) "rippling through colour space" to match the recent performance increase

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  • Theme challenge generator

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