Circle Intersection

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Circle collision test

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A method for testing collision / intersection between two circles on a 2D surface is presented below in Javascript. Code in made as simple as possible to support adaptation to other languages.

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function circlesIntersect(c1, c2)
{
	return (c1.r + c2.r) >= (Math.abs(Math.sqrt(
		((c1.x-c2.x) * (c1.x-c2.x)) +
		((c1.y-c2.y) * (c1.y-c2.y)))));
}
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Mouth and Body Automata

 Intermediate Icon

Another simple cellular automata setup, this time showing interactions between cells with random mouth and body colours to represent type and prey type.

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