Sprite flipping implemented in opengl
Sprite flip property added to entities, and duplicate boolean Xml-IO code fixed
Duplicate vector2 reading from XML code removed
Duplicate vector3 reading from XML code removed
More duplicate code removed
More duplicate code removed [2]
More duplicate code removed [3]
Particle property bug fixed
Opengl sprite flip stuff undone
Flip implemented
Flip shader constants being computed in a more generic object