Major Game trouble

[Timbo1]

I am making a major game and implied the help of a video tuorial but i can't get the code to work
here is Player.cpp

#include "Library.h"

void PLAYER::AddExperience(int amount)
{
	SetExperience(experience + amount);
}

void PLAYER::AddGold(int amount)
{
	SetGold(gold + amount);
}

here is player.h

class PLAYER 
{
private:
	char name[32];
	int strength;
	int intelligence;
	int gold;
	int experience;
	int health;
	int maxhealth;
	int mana;
	int maxmana;
	int level;
public:
	void SetName(char* newname);
	char* GetName();
	void SetStrength(int newstr);
	int GetStrength();
	void SetIntelligence(int newint);
	int GetIntelligence();
	void SetGold(int newgold);
	void AddGold(int amount);
	int GetGold();
	void SetExperience(int newexperience);
	void AddExperience(int amount);
	int GetExperience();
	void SetHealth(int newhealth);
	void AddHealth(int amount);
	void LoseHealth(int amount);
	int GetHealth();
	void SetMaxHealth(int newmaxhealth);
	int GetMaxHealth();
	void SetMana(int newmana);
	void AddMana(int amount);
	void LoseMana(int amount);
	int GetMana();
	void SetMaxMana(int newmaxmana);
	int GetMaxMana();
};

here are the errors:

1>c:\documents and settings\timbo\my documents\visual studio 2008\projects\game\game\player.cpp(5) : error C2653: 'PLAYER' : is not a class or namespace name
1>c:\documents and settings\timbo\my documents\visual studio 2008\projects\game\game\player.cpp(7) : error C2065: 'experience' : undeclared identifier
1>c:\documents and settings\timbo\my documents\visual studio 2008\projects\game\game\player.cpp(7) : error C3861: 'SetExperience': identifier not found
1>c:\documents and settings\timbo\my documents\visual studio 2008\projects\game\game\player.cpp(10) : error C2653: 'PLAYER' : is not a class or namespace name
1>c:\documents and settings\timbo\my documents\visual studio 2008\projects\game\game\player.cpp(12) : error C2065: 'gold' : undeclared identifier
1>c:\documents and settings\timbo\my documents\visual studio 2008\projects\game\game\player.cpp(12) : error C3861: 'SetGold': identifier not found
1>Town.cpp

somebody tell me what is wrong with the code!

[jsmith]

player.cpp needs to include player.h

[Timbo1]

1>Player.obj : error LNK2019: unresolved external symbol "public: void __thiscall PLAYER::SetExperience(int)" (?SetExperience@PLAYER@@QAEXH@Z) referenced in function "public: void __thiscall PLAYER::AddExperience(int)" (?AddExperience@PLAYER@@QAEXH@Z)

1>Player.obj : error LNK2019: unresolved external symbol "public: void __thiscall PLAYER::SetGold(int)" (?SetGold@PLAYER@@QAEXH@Z) referenced in function "public: void __thiscall PLAYER::AddGold(int)" (?AddGold@PLAYER@@QAEXH@Z)

1>C:\Documents and Settings\Timbo\My Documents\Visual Studio 2008\Projects\Game\Debug\Wrath Lands.exe : fatal error LNK1120: 2 unresolved externals

Thats the errors I get.

[guestgulkan]

Allow me to translate ( linker language in bold, with my translation underneath):

unresolved external symbol "public: void __thiscall PLAYER::SetExperience(int)" (?SetExperience@PLAYER@@QAEXH@Z)

Cannot find the function PLAYER::SetExperience(int) (the bit following in brackets is the C++ managled name.)

referenced in function "public: void __thiscall PLAYER::AddExperience(int)"
That was called from the function PLAYER::AddExperience


In other words the linker is saying it can't find the two functions
PLAYER::SetExperience and PLAYER::SetGold

If the code you have given us so far for player.cpp is what you compiled, then the reason is obvious - you haven't written these functions yet.

[Timbo1]

if you look in player.h then i have

[guestgulkan]

This is a function prototype: void SetExperience(int newexperience); in player.h

Where is the function body? This is why the linker is complaining.

[Timbo1]

could you please type the code and show me

[guestgulkan]

In player cpp - you add the function body for SetExperience:

void PLAYER::SetExperience(int newexperience)
{
	experience =  newexperience
}

(or you can do it as an in-line function in player.h as it is a small function)
The same for theSetGold function (and all the other remaining functions you have declared in the player class - they all need bodies before you can use them -or you will get the linker errors.)

[jsmith]

You are probably not linking against both main.o(bj) and player.o(bj) since you were originally including player.cpp directly in main.cpp.

[guestgulkan]

to jsmith
Was that in another post somewhere??

[jsmith]

I inferred that was the problem in my first response. It was never confirmed by the original poster, but I assumed that was the problem since the poster never said otherwise.