SDL Problem

		#include "SDL.h"

		const int SCREEN_WIDTH = 640;
		const int SCREEN_HEIGHT = 480;
		const int SCREEN_BPP = 32;
		bool gamequit = false;

		//set surfaces
		SDL_Surface *screen;
		SDL_Surface *playerimage;

		//player class
		class Player
		{
		public:
			int w;
			int h;
			int x;
			int y;
			int speed;
		};

		//surface applying
		void apply_surface(int x, int y, SDL_Surface* source, SDL_Surface* destination)
		{
			//creates rect for surface
			SDL_Rect offset;

			//sets the offset x and y to the given x and y
			offset.x = x;
			offset.y = y;

			//blits the surface
			SDL_BlitSurface(source, NULL, destination, &offset);
		}

		//game end function
		void gameend()
		{
			SDL_FreeSurface(screen);
			SDL_FreeSurface(playerimage);

			SDL_Quit();
		}


int main(int argc, char* argv[])
{
        //initialize SDL
        SDL_Init(SDL_INIT_VIDEO);

        //images and screen
        screen = SDL_SetVideoMode(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP,SDL_SWSURFACE);
        playerimage = SDL_LoadBMP("player.bmp");
        
	//game event
	SDL_Event movement;

	//sets player variables
	Player player;
	player.x = SCREEN_WIDTH / 2 - 16;
	player.y = SCREEN_HEIGHT / 2 - 16;
	player.speed = 8;

	//main game loop
	for(gamequit = false; gamequit != true;)
	{
		//draws the player to the screen
		apply_surface(player.x,player.y,playerimage,screen);
	
		//Polls for an event
		SDL_PollEvent(&movement);

		//if the event was a key being presses
		if(movement.key.state == SDL_PRESSED)
		{
			//checks which key is being pressed
			// and sets the players x and y to the necessery adjustments
			if(movement.key.keysym.sym == SDLK_DOWN)
			{
				player.y = player.y + player.speed;
			}

			if(movement.key.keysym.sym == SDLK_UP)
			{
				player.y = player.y - player.speed;
			}

			if(movement.key.keysym.sym == SDLK_LEFT)
			{
				player.x = player.x - player.speed;
			}

			if(movement.key.keysym.sym == SDLK_RIGHT)
			{
				player.x = player.x + player.speed;
			}
		}

		if(movement.type == SDL_QUIT)
		{
			gamequit = true;
			gameend();
		}

		//check collision
		if(player.x < 0)
		{
			player.x = 0;
		}

		if(player.x > SCREEN_WIDTH - player.w)
		{
			player.x = SCREEN_WIDTH - player.w;
		}

		if(player.y < 0)
		{
			player.y = 0;
		}

		if(player.y > SCREEN_HEIGHT - player.h)
		{
			player.y = SCREEN_HEIGHT - player.h;
		}

		SDL_Flip(screen);
	}

	SDL_Delay(10000);

	return 0;
}