SpoutDev/SpoutAPI — pull request #77 by Darsstar (2012-01-29 15:32:36+00:00)
Title: Made the mutable variants in org.spout.api.math more... mutable.

And added the tests to prove it.

Only Vector3.add(Vector3 that) was overridden in Vector3m while every other add() still created a new Vector3 instance. Now every other add() calls add(Vector3 that) instead.

[This](https://github.com/SpoutDev/Vanilla/blob/f5470994493b99c34bf30482fbba26d3f479074a/src/main/java/org/spout/vanilla/entity/objects/FallingBlock.java#L64) line for example will now actually change the velocity.