Handles a 'chunk' of the map, defined by a global variable as a square of CHUNK_SIZE by CHUNK_SIZE

• Chunk()
• ~Chunk()

• Chunk& operator=(const Chunk&)

• SDL_Rect get_position() const
• ImageSet* get_image_set() const

• void set_position(int, int)
• void set_position(SDL_Rect)
• void set_image_set(ImageSet*)