PNG loading and major refactoring.

PNG loading is not working properly yet.

src/placeable.hpp

@@ -4,16 +4,24 @@
 #include "vector.hpp"
 
 namespace cloonel {
+	class Mover;
+
 	class Placeable {
 	public:
 		const float2& GetPos ( void ) const noexcept { return m_pos; }
 		void AddOffset ( const float2& parOffset ) noexcept { m_pos += parOffset; }
 
+		void SwapMover ( Mover* parMover );
+
 	protected:
 		Placeable ( float parX, float parY );
 		~Placeable ( void ) noexcept = default;
 
 		float2 m_pos;
+
+	private:
+		Mover* m_mover;
+		int m_idForMover;
 	};
 } //namespace cloonel