// Declare a sprite class

struct t_sprite
{
	SDL_Surface *image;                                                 // The surface for the sprite

	SDL_Rect     rect;                                                  // The sprite's rectangle

};

// A function to load an image onto the sprite

void load_sprite(t_sprite *sprite, char *file)
{
    // Load the bitmap onto the sprite

    sprite->image = SDL_LoadBMP(file);
    if ( sprite->image == NULL ) 
	{
        fprintf(stderr, "Couldn't load %s: %s\n", file, SDL_GetError());
        return;
    }

    // Initialize the sprite's rect

    sprite->rect.x = 0;
    sprite->rect.y = 0;
    sprite->rect.w = sprite->image->w;
    sprite->rect.h = sprite->image->h;
}

// A function to move the sprite

void move_sprite(t_sprite *sprite, int x, int y)
{
    // If the sprite is within the width boundaries, move the sprite 

    // If the sprite is not on the left edge

    if(sprite->rect.x >= 0)
    {
        // If the sprite is not on the right edge

        if((sprite->rect.x + sprite->rect.w) <= 800)
        {
            // Move the sprite to the desired position

            sprite->rect.x = sprite->rect.x + x;
        }
        // If the sprite is on the right edge

        else
        {
            // Move the sprite just left of the right edge

            sprite->rect.x = (600 - sprite->rect.w);
        }
    }
    // If the sprite is on the left edge

    else
    {
        // Move the sprite just right of the left edge

        sprite->rect.x = 1;
    }
}
    

  int main(int argc, char* argv[]){	SDL_Surface *MainSurface;	t_sprite Sprite;	SDL_Event event;	char bQuit = 0;	SDL_Init(SDL_INIT_VIDEO);	MainSurface = SDL_SetVideoMode (800, 600, 0, SDL_ANYFORMAT);	load_sprite(&Sprite, "ckRedBall.bmp");	while(!bQuit)	{	        move_sprite(&Sprite, 5, 0);		SDL_BlitSurface(Sprite.image, NULL, MainSurface, &Sprite.rect);		SDL_UpdateRect(MainSurface, 0, 0, 0, 0);		// main message loop		if( SDL_PollEvent(&event) )		{			if(event.type == SDL_QUIT)			{				bQuit = 1;			}		}		SDL_Delay(200);	}	SDL_Quit();}  

  typedef struct image_rect{	SDL_Surface *image; 	SDL_Rect     rect; } t_sprite;