#pragma comment(lib, "SDL.lib")
#pragma comment(lib, "SDLmain.lib")

#include <iostream>
#include <SDL.h>

using namespace std;
// animation struct
struct CAnimation
{
	int frameCount;
	int x;
	int y;
	int w;
	int h;
};

// sprite class
class CSprite
{
private:
	CAnimation animation;
	int xpos;
	int ypos;

public:
	void SpriteInit();
	void ChangeFrame();
	void DrawFrame(SDL_Surface *screen, SDL_Surface *frame);
};

// Initializes the sprite
void CSprite::SpriteInit()
{
	CSprite::animation.frameCount = 0;
	CSprite::animation.x = 0;
	CSprite::animation.y = 0;
	CSprite::animation.w = 63;
	CSprite::animation.h = 63;
	CSprite::xpos = 300;
	CSprite::ypos = 300;
}

// Changes the frame
void CSprite::ChangeFrame()
{
	CSprite::animation.frameCount++;
	CSprite::animation.x += 63;
}

// Draw the frame
void CSprite::DrawFrame(SDL_Surface *screen, SDL_Surface *frame)
{
	SDL_Rect dest;
	dest.x = CSprite::xpos;
	dest.y = CSprite::ypos;
	SDL_Rect source;
	source.x = CSprite::animation.x;
	source.y = CSprite::animation.y;
	source.w = CSprite::animation.w;
	source.h = CSprite::animation.h;

	SDL_BlitSurface(frame, &source, screen, &dest);
	SDL_Flip(screen);
}

int main(char argc, char *argv[])
{
	CSprite sprite;

	// set up sdl
	if(SDL_Init(SDL_INIT_VIDEO) < 0)
	{
		cout << "Error in initalizing SDL: " << SDL_GetError() << "\n";
		exit(1);
	}
	atexit(SDL_Quit);

	// create surfaces
	SDL_Surface *screen;
	SDL_Surface *frame;
	SDL_Surface *background;

	screen = SDL_SetVideoMode(600, 600, 24, SDL_HWSURFACE|SDL_DOUBLEBUF);
	// make sure screen was made
	if(screen == NULL)
	{
		cout << "Could not create screen: " << SDL_GetError() << "\n";
		exit(1);
	}

	// load images
	frame = SDL_LoadBMP("dfly.bmp");
	background = SDL_LoadBMP("background.bmp");
	
	// draw the background
	SDL_Rect backdest;
	backdest.x = 0;
	backdest.y = 0;
	SDL_BlitSurface(background, NULL, screen, &backdest);

	// game loop
	bool done = false;
	while(done == false)
	{
		// for events
		SDL_Event event;

		// event loop
		while(SDL_PollEvent(&event))
		{
			if(event.type == SDL_QUIT)
			{
				done = true;
			}

			if(event.type == SDL_KEYDOWN)
			{
				if(event.key.keysym.sym == SDLK_ESCAPE)
				{
					done = true;
				}
			}
		}
		
		sprite.SpriteInit();
		sprite.DrawFrame(screen, frame);
		SDL_Delay(1000);
		sprite.ChangeFrame();
	}
	return 0;
}

#include <iostream>#include <SDL.h>using namespace std;

#include <iostream>#include <SDL.h>#include <SDL_main.h>using namespace std;

#include <SDL/SDL.h>#include <SDL/SDL_main.h>