// First way
// GameEngine class with a Singleton.
// ResourceLoader and Painter are classes that are allocated in the GameEngine. And in the GameEngine you can receive those pointers
// The advantage of this is that I only make those pointers once in the whole application/game.
// Image is a class that will hold all the image information

int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
{
	GameEngine engine = GameEngine::GetInstance();
	engine.StartUp( 640, 480, _T("Game Engine"), 60 );


	//----------------------------------------------------------------------------------------------------
	//// Receive the resourceLoader via the engine
	ResourceLoader* pResourceLoader = engine.GetResourceLoader();
	//// Receive the painter via the engine
	Painter* pPainter = engine.GetPainter();

	//// Load a Bitmap
	Image* pImage = pResourceLoader->LoadImage( "image.bmp" );

	while( engine.ProcessMessages() )
	{
		//// Draw the image
		pPainter->DrawImage( pImage, xPos, yPos );
	}
	//----------------------------------------------------------------------------------------------------


	engine.Shutdown();
	return 0;
}









// Second way
// GameEngine is still the same
// ResourceLoader and Painter are now classes independent of the GameEngine
// So you always need to make them ( with other words, more allocated objects that will do the same )
// Image class is still the same

int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
{
	GameEngine engine = GameEngine::GetInstance();
	engine.StartUp( 640, 480, _T("Game Engine"), 60 );


	//----------------------------------------------------------------------------------------------------
	//// Create the resourceLoade
	ResourceLoader* pResourceLoader = new ResourceLoader();
	//// Receive the painter via the engine
	Painter* pPainter = new Painter();

	//// Load a Bitmap
	Image* pImage = pResourceLoader->LoadImage( "image.bmp" );

	while( engine.ProcessMessages() )
	{
		//// Draw the image
		pPainter->DrawImage( pImage, xPos, yPos );
	}
	//----------------------------------------------------------------------------------------------------


	engine.Shutdown();
	return 0;
}








// Third way
// GameEngine is now a bit different
// The classes ResourceLoader and Painter are still there but..
// I work with inheritance:
// class GameEngine: public ResourceLoader, public Painter  {  }

int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
{
	GameEngine engine = GameEngine::GetInstance();
	engine.StartUp( 640, 480, _T("Game Engine"), 60 );


	// I still got a Painter and Recource class but I use heritance here.
	// class GameEngine: public Painter, public ResourceLoader

	//----------------------------------------------------------------------------------------------------
	//// Load the image
	engine.LoadImage( "image.bmp" );

	while( engine.ProcessMessages() )
	{
		//// Draw the image
		engine.DrawImage( pImage, xPos, yPos );
	}
	//----------------------------------------------------------------------------------------------------


	engine.Shutdown();
	return 0;
}









// Fourth way
// ResourceLoader and Painter is gone
// Now I made the Image class indepent of a painter or resource loader.
// So he must load his own image, draw himself, etc.
// This will have performance if the image can be rotated, scaled, etc
int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
{
	GameEngine engine = GameEngine::GetInstance();
	engine.StartUp( 640, 480, _T("Game Engine"), 60 );


	// I still got a Painter and Recource class but I use heritance here.
	// class GameEngine: public Painter, public ResourceLoader

	//----------------------------------------------------------------------------------------------------
	//// Load the image
	Image* pImage = new Image( "image.bmp" );

	while( engine.ProcessMessages() )
	{
		//// Draw the image
		pImage.Draw( xPos, yPos );
	}
	//----------------------------------------------------------------------------------------------------


	engine.Shutdown();
	return 0;
}