Contains the prototypes for the MapManager class

Manages a "chunk" of the total map, which size is defined by CHUNK_SIZE A chunk is composed of three layers of "items/images", the ground, the scenery, and the "objects"

• MapManager()
• MapManager(int, int)
• MapManager(SDL_Rect)
• ~MapManager()

• MapManager& operator=(const MapManager&)

• SDL_Rect* get_position() const

• void set_position(SDL_Rect)
• void set_position(int, int)