C++

Forum

 
Class inside its parent class container

igorpan (6)
First,hello everyone :)

I started making a game in C++ and i'm stuck at this point.

1. I have class GObject (thats game object class,with x,y coordinates,sprite info etc)
2. I have Ship and its base class is GObject (class Ship : GObject)
3. I have map<string,GObject*> which "contains" all game objects so i can draw,update and do stuff with them.

Now,here is the problem: when i put:

1
2
 
    
gameObjects["first"] = new Ship(15,20,"sprite_name");


I get this error (i'm using Code::Blocks on linux) : 'GObject' is inacessible base of 'Ship'.

Here are ship and gobject files. Maybe it will help :) :

Ship.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
#ifndef SHIP_H_INCLUDED
#define SHIP_H_INCLUDED

#include "GObject.h"
#include <string>
#include <SDL.h>

class Ship : GObject
{
    public:
    Ship(int,int,std::string);
    virtual void KeyDown(Uint8*);
};
#endif // SHIP_H_INCLUDED


Ship.cpp
1
2
3
4
5
6
7
8
9
 
#include <string>
#include "Ship.h"

Ship::Ship(int x,int y,std::string ime) : GObject(x,y,ime) { }

void Ship::KeyDown(Uint8* kstates)
{
    if (kstates[SDLK_UP]) x += 10;
}


GObject.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
#ifndef GOBJECT_H_INCLUDED
#define GOBJECT_H_INCLUDED

#include <string>
#include <SDL.h>
#include <cstdlib>

class GObject
{
    public:
        GObject(int,int,std::string);
        virtual void KeyDown(Uint8*);
        int x, y;
        std::string spritename;
};

#endif // GOBJECT_H_INCLUDED


GObject.cpp
1
2
3
4
5
6
7
8
9
10
 
#include "GObject.h"
#include <string>
#include <SDL.h>

GObject::GObject(int cx,int cy,std::string cspritename) : x(cx), y(cy), spritename(cspritename) {}

void GObject::KeyDown(Uint8*)
{

}


Thanks in advance for help :)
closed account (jwC5fSEw)
I'm not really sure, but here's a guess: try inheriting Ship from GObject publicly:

class Ship : public GObject
igorpan (6)
That was so simple and yet it worked :D

Thanks a lot!
jsmith (5804)
(default inheritance for classes is private)
Topic archived. No new replies allowed.