Simple sidescroller game - game.h

//This example program is created by thecplusplusuy for demonstration purposes. It's a simple mario like side-scroller game:
//http://www.youtube.com/user/thecplusplusguy
//Free source, modify if you want, LGPL licence (I guess), I would be happy, if you would not delete the link
//so other people can see the tutorial
//this file is game.h it's a class, which put everything other together to one program
#include <iostream> //for write out things
#include <fstream>  //to read the map from file (and you could write error messages to file)
#include <vector>       //for the map
#include <SDL/SDL.h>//for SDL
#include <SDL/SDL_ttf.h>    //for the menu and showmessage function
#include "base.h"   //we include our own header files
#include "player.h"
#include "bullet.h"
#include "enemy.h"
#ifndef GAME_H  //avoid multiple inclusion
#define GAME_H
class game:public baseclass{    //we inherit it from baseclass, because of the collision funtion
    SDL_Surface* screen,*background,*block,*bul,*ene;   //images and screen
    SDL_Rect camera;    //for the scrolling background (the current position of the background)
    std::vector<std::vector<int> > map; //a multidimensional dynamically allocated vector for the map
    std::vector<bullet*> bullets;               //a dynamically allocated vector for the bullets (which will contain address of dynamically allocated bullets)
    std::vector<enemy*> enemies;                //vector for the enemies (which will contain address of dynamically allocated enemies)
    bool direction[2];                                  //what key are we pressing?
    TTF_Font* font;                                         //the font
    SDL_Rect finish;                                        //the finish coordinates
    //obvious
    SDL_Surface* load_image(const char* filename);
    void loadmap(const char* filename);
    void showmap();
    void handleEvents();
    bool running;   //is the program running?
    static const int SCREEN_WIDTH=640;  //few const
    static const int SCREEN_HEIGHT=480;
    player* player1;    //Pointer to a dynamically allocated player
    int showmenu(SDL_Surface*);
    void showmessage(const char* c);
    public:
    game();
    ~game();
    void start();
};
#endif