Fix concave CollisionPolygon2D
debug drawing and docs
#89820
Merged
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The debug drawing for
CollisionPolygon2D
showed the convex decomposition unconditionally, which was meaningless in Segments build mode. The dead code would show a filled polygon, which would also be misleading as you can just as well put a character on the inside (because the shape is purely built of segments), so this PR draws nothing on the inside when the build mode is Segments. (If people do prefer a filled polygon, we could do that instead.)collisionpolygon2d-debug.mp4
The documentation had some copy/paste error from the 3D analogue, and it was mentioning only the solid option; now hollow is mentioned as well.