Implement height map collision algorithm

Issue #54 new
Michael Ludwig
repo owner created an issue

Since a height map is potentially concave, we'll have to do something like project the bounds into the XZ plane and determine the triangles in the height map that need to be collided. From the triangles we can then use GJK/EPA, although that would require having a collision shape for a simple triangle.

It might also be necessary to extrude the triangle to infinity or something so that it's not just a thin shell.

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