function u(t){


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  • 5Mixer: Wanted to see if I could use the box ascii characters for something. Drawing text takes up a lot of characters, but it turned out okay :D As a bonus, removing the '+1' on the final line makes the pattern squares!
  • 5Mixer: Edit: Nope. Some golfing apparently means that isn't true anymore lol.
  • Xen: w=c.width=2e3,x.font="40pt'";for(n=369;n--;)x.fillText(['╚','╔','╝','╗'][(n/20|0%4*3+n%40)%4],(n*t*t)%w,n%20*50)

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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)