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Invaders Fractal

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Luis
Correia
A demonstration of recursion, which means functions call themselves. Notice how the drawShape() function calls itself 3 times at each level. It continues to do this until the variable "level" is equal to 0. At each level draws a random generated invader on a 5x5 grid with a random color and size proportional to the level. Press any key or mouse button to generate another fractal. Press 's' key to switch between smoothing and no smoothing.
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