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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: #cavern
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remix of d/19006 by u/tomxor

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remix of d/17761 by u/ElisionFR

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  • Synchronization - Kuramoto Model #Default

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  • BOUNCE

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  • Quadratic gravity simulation with 99 points! #physics If this doesn't work, look at d/16213
  • u/katkip
    To decompress, add ;throw m before //
  • u/katkip
    To decompress, add ;throw m before //

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  • u/tomxor
    Perfect collision integration, since uniform gravity is constant it should cancel out in such a simple case, in which case integration can be skipped on a collision interval ?-b:b+.3 this is why it doesn't loose or gain significant hight on average
  • u/tomxor
    To make it absolutely perfect this can also be changed to ?-b:b+.25 which will eliminate integration error since .25 is a non periodic binary fraction... it will bounce forever :)
  • u/tomxor
    ... but that would cost an extra byte so its no good !

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  • Gravity on a curved, moving surface

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  • #blackhole ~ Tribute to the first image produced of a black hole.

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