In C++, how do I access declared objects across multiple class files? - c++

Question

I didn't include a Player.h file or .cpp file since they're exactly the same as my Monster.h and .cpp file.
I'm making a game and I created a player object in my Login.cpp file that takes the username and an int as the parameters. Is there a way to access the object's parameters in my BattleStats() function within my BattleSystem.cpp file? My goal is to eventually update the parameters as the player gets hit by the monster and to output those updated parameters.
Here's my code, thank you for the help:
Main.cpp
#include "Login.h"
#include "GameManager.h"
#include "BattleSystem.h"
#include <iostream>
using namespace std;
int main() {
BattleSystem bs;
GameManager gm(&bs);
Login login(&gm);
login.StartMenu();
cout << "ENDING" << endl;
system("pause"); //Pause console.
return 0; //Terminated without errors.
}
Login.h
#pragma once
#include "GameManager.h"
#include <iostream>
using namespace std;
class Player;
class GameManager;
class Login {
public:
Login(GameManager* gmPtr) : manager(gmPtr) {}
void StartMenu();
private:
string username = "Kujo";
Player* player;
GameManager* manager;
};
Login.cpp
#include "Login.h"
#include "Player.h"
#include "GameManager.h"
void Login::StartMenu() {
player = new Player(username, 100);
manager->GameStart();
}
GameManager.h
#pragma once
class BattleSystem;
class GameManager {
public:
GameManager(BattleSystem* bsPtr) : battle(bsPtr) {}
void GameScenario();
private:
int level = 1;
BattleSystem* battle;
};
GameManager.cpp
#include "BattleSystem.h"
#include "Login.h"
#include "GameManager.h"
void GameManager::GameScenario() {
battle->Encounter();
}
BattleSystem.h
#pragma once
class Player;
class Monster;
class BattleSystem {
public:
void Encounter();
void BattleStats();
private:
Monster* monster;
Player* player;
};
BattleSystem.cpp
#include "Player.h"
#include "Monster.h"
#include "BattleSystem.h"
void BattleSystem::Encounter() {
monster = new Monster("Mini Orc", 100);
cout << "A " << monster->GetName() << " has appeared!" << endl;
BattleStats();
}
void BattleSystem::BattleStats() {
cout << "Monster name: " << monster->GetName() << endl;
cout << "Monster HP: " << monster->GetHP() << endl << endl;
cout << "Player name: " << "PLAYER NAME HERE" << endl;
cout << "Player HP: " << "PLAYER HP HERE" << endl << endl;
}
Monster.h
#pragma once
#include <string>
#include <iostream>
using namespace std;
class Monster {
public:
Monster();
Monster(string monsterName, int health);
void SetName(string monsterName);
void SetHP(int health);
string GetName() const;
int GetHP() const;
private:
string name = "Monster";
int healthPoints = 0;
};
Monster.cpp
#include "Monster.h"
Monster::Monster() : name("Player"), healthPoints(0) {}
Monster::Monster(string monsterName, int health) {
name = monsterName;
healthPoints = health;
}
void Monster::SetName(string monsterName) {
name = monsterName;
}
void Monster::SetHP(int health) {
healthPoints = health;
}
string Monster::GetName() const {
return name;
}
int Monster::GetHP() const {
return healthPoints;
}

Answer 1

Try to insert friend BattleSystem to your Player class.
Then you will have an access to private fields of Player from BattleSystem.