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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.
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jwc

function u(t) {

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  • Grass in the wind
  • u/jwc
    Uncompressed: z=(s=(v=t%14.57)<2)?0:v-2;for(c.width|=j=16;j--;)for(k=20;k--;)for(i=25;i--;x.fillRect(w+2*(q=24-i)*C(3*z+i/24-w/4e3)*(1.5+C(z))+(s?q:0)*S(56.55*v+i/24),550+k*k+i*6,i/5,6))w=128*j+k%2.3*56
  • u/jwc
    Now that I’ve accepted that this will probably never fit in 140 chars uncompressed, I might consider working on smoothing the transition when the strong wind starts and stops…

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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)