Currently cocos2d-x has two math libraries:

• kazmath
• CCGeometry

Problem:

• we don't need 2 math libraries. We need one that is capable of doing both 2d and 3d math.
• kazmath is a complete 2d + 3d math library but it is not using objects, and the API is not user friendly
• CGGeometry is useful for 2d, but it is not a 3d math library, and it is not trivial to add support for 3d in it.

Solution:

Replace kazmath and CCGeometry with a good, object oriented, mobile-optimized math library like Gameplay's math library.

Scope:

The cocos2d API should be replaced:

• Point should be replaced by Vector2
• Vertex3 should be replaced by Vector3
• kmMat4 should be replaced by Matrix

But it should be backwards compatible (whenever it makes sense).

eg: Point could be defined as:

  


  
typedef Point Vector2;

Additionally, the API should be optimized for 2D... at least for the moment.
So, getPosition() should return a const &Vector2 (since position is stored internally in a Vector2... but getPosition3() should return a Vector3 (no const&).

...at least for the moment.