Since an entity is essentially tied to a manager, put it as a field in
Entity. This means no need to pass entity manager when getting a
component, which is more intuitive.
Internal Changelog:
- Update BBox component to use Vector2
- Add new CTransform component
- Implement level scene movement system and render system
- Implement scene test procedure
Changelog:
- Add actions and assets headers, not implemented and not used
- move original main to entManager_test
- Add proper main to create window and display nothing
- Implement scene base class and level scene
- Add a simple level scene test
- Update CMakeLists to compile main and tests
En Yi