Base class undefined

Started by DaJero February 22, 2003 09:17 AM

2 comments, last by DaJero 21 years, 8 months ago

Author

122

February 22, 2003 09:17 AM

I am using Visual C++ 6 Introductionary edition. I have three classes: GameObject, TexturedObject and Input. The last two are children of the GameObject. Everytime I try to compile my source code I get these two errors: c:\documents and settings\jeroen\my documents\c++\shooty\texturedobject.h(11) : error C2504: 'GameObject' : base class undefined c:\documents and settings\jeroen\my documents\c++\shooty\input.h(13) : error C2504: 'GameObject' : base class undefined I hope someone will be able to help me. It's really fustrating. I don't know what's wrong. Here's the source code of gameobject.h, texturedobject.h and input.h:

    
#ifndef GAMEOBJECT_H
#define GAMEOBJECT_H

#include "engine.h"

class Engine;

class GameObject
{
protected:
	Engine *E;
public:
	GameObject(Engine *NewEngine);
	GameObject *Next;
};

#endif

    
#ifndef TEXTUREDOBJECT_H
#define TEXTUREDOBJECT_H

#include "gameobject.h"
#include "engine.h"

class Engine;
class GameObject;

class TexturedObject : public GameObject
{
protected:
	NDX_Surface *Surface;
	char *FileName;
	float X;
	float Y;
public:
	TexturedObject(Engine *NewEngine, char *_FileName);

	NDX_Surface* GetSurface();
	void SetPos(float NewX, float NewY);
	float GetX() { return X; }
	float GetY() { return Y; }
	void SetTransparentColor(bool UseTransP, DWORD Color);
};

#endif

  
#ifndef INPUT_H
#define INPUT_H

#include "gameobject.h"
#include "texturedobject.h"
#include "engine.h"

class Engine;
class GameObject;
class TexturedObject;

class Input : public GameObject
{
protected:
	NDX_Input *I;
	TexturedObject *Cursor;
public:
	Input(Engine *NewEngine, NDX_Window *Window);
	~Input();
	void HandleInput();
};

#endif

Thanks a lot in advance, DaJero - Oderint dum metuant [edited by - DaJero on February 22, 2003 10:19:19 AM]

DaJero- Oderint dum metuant

_Rambo_

122

February 22, 2003 09:26 AM

Remove declarations of classes in each file, you something like this:

class Engine; // Remove this and the others declarations like this
class Input : public GameObject
{
};

...and try it out.

mjhpc

122

February 22, 2003 10:54 AM

protected: is a keyword that limits access to a class'' member functions and variables. Only the class itself and any derived classes are allowed to access protected members.

DaJero

Author

122

February 22, 2003 11:27 AM

OK,

I removed every class forward in the header files, and now the number of errors went up to 61(!). I have included the current code in all header files (engine.h, gameobject.h, texturedobject.h and input.h)

    #ifndef ENGINE_H#define ENGINE_H#include <NukeDX.h>#include "gameobject.h"#include "texturedobject.h"#include "input.h"#include <string>using namespace std;class Engine{private:	NDX_Screen *Screen;	NDX_Window *Window;	NDX_Log *PrvtLog;	Input *I;	HINSTANCE hInst;	HINSTANCE hPrevInstance;	LPSTR lpszCmdParam;	int nCmdShow;public:	Engine(HINSTANCE _hInst,HINSTANCE _hPrevInstance,LPSTR _lpszCmdParam,int _nCmdShow, int ResX, int ResY);	~Engine();	NDX_Screen* GetScreen();	bool MainLoop();	GameObject* AddObject(GameObject *NewObject);	void Log(string Text);public:	float Scale;	GameObject *Objects;};#endif

  #ifndef GAMEOBJECT_H#define GAMEOBJECT_H#include "engine.h"class GameObject{protected:	Engine *E;public:	GameObject(Engine *NewEngine);	GameObject *Next;};#endif

  #ifndef INPUT_H#define INPUT_H#include "gameobject.h"#include "texturedobject.h"#include "engine.h"class Input : public GameObject{protected:	NDX_Input *I;	TexturedObject *Cursor;public:	Input(Engine *NewEngine, NDX_Window *Window);	~Input();	void HandleInput();};#endif

  #ifndef TEXTUREDOBJECT_H#define TEXTUREDOBJECT_H#include "gameobject.h"#include "engine.h"class TexturedObject : public GameObject{protected:	NDX_Surface *Surface;	char *FileName;	float X;	float Y;public:	TexturedObject(Engine *NewEngine, char *_FileName);	NDX_Surface* GetSurface();	void SetPos(float NewX, float NewY);	float GetX() { return X; }	float GetY() { return Y; }	void SetTransparentColor(bool UseTransP, DWORD Color);};#endif

I really hope someone will be able to help me.

Thanks a lot in advance,

DaJero
- Oderint dum metuant

[edited by - DaJero on February 22, 2003 12:29:26 PM]

DaJero- Oderint dum metuant

Base class undefined

This topic is closed to new replies.

Popular Topics

Recommended Tutorials

Base class undefined

This topic is closed to new replies.

Popular Topics

Recommended Tutorials

Reticulating splines