从一个类文件访问另一个文件中的变量

debugcn 发表于 Dev

阿里佐多

我有以下文件：

main.cpp
shop.hpp
player.hpp

每个代码中都包含以下代码：

main.ccp：

 #include <iostream>
    #include <cstdlib>
    #include "shop.hpp"

    using namespace std;
    string *inventory= new string[3];
    int invGold= 355;

    int main(void){
    shop store;
    store.store();
    }

shop.hpp：

#include <iostream>
#include <cstdlib>

using namespace std;

class shop{
    public:
    string shopOption;
        string shopOptions[6]= {"Buy", "buy", "Sell", "sell", "Leave", "leave"};
        string shopInv[3]= {"Sword", "Potion", "Arrows x 25"};
        int shopInvAmount= sizeof(shopInv)/sizeof(shopInv[0]);
        int shopPrices[3]= {250, 55, 70};

    shop(){
        cout << "Shopkeeper: We buy, we sell, what's your buisness?" << endl;
    }
    void store(void){
        getline(cin,shopOption);

        if(shopOption.compare(shopOptions[0]) == 0 || shopOption.compare(shopOptions[1]) == 0){
            buy();
        }

        else if(shopOption.compare(shopOptions[2]) == 0 || shopOption.compare(shopOptions[3]) == 0){
            sell();
        }

        else if(shopOption.compare(shopOptions[4]) == 0 || shopOption.compare(shopOptions[5]) == 0){
            leave();
        }
    }

    void buy(){
        srand(time(0));
        string buyQuotes[3]= {"What are you buyin', hon?", "Make it quick, I ain't got all day.", "Another day, another sell."};
        int quotePick= rand() % sizeof(buyQuotes)/sizeof(buyQuotes[0]) - 1;
        if (quotePick < 0){
            quotePick= 0;
        }

        else if (quotePick > (sizeof(buyQuotes)/sizeof(buyQuotes))){
            quotePick= sizeof(buyQuotes)/sizeof(buyQuotes);
        }
        cout << "TEST:" << sizeof(shopInv)/sizeof(shopInv[0]) << endl;
        cout << buyQuotes[quotePick] << endl;
        cout << "SHOP INVENTORY" << endl << "--------------" << endl;
        cout << endl;
        for (int i=0; i < sizeof(shopInv)/sizeof(shopInv[0]); i++){
            cout << shopInv[i]<< ": " << shopPrices[i] << endl;
        }
        cout << endl << "What'll it be?:";
        getline(cin,shopOption);
    }
    void sell(){

    }

    void leave(){

    }
};

和player.hpp

class player{
    public:
    int playerHP= 18;
    string playerInv[5] {};
    int playerGold= 355;
};

现在，我想做的是，在角色选择他们想要购买的物品并投入一定数量后，（尚未编程）检查组合物品的价格，并查看角色是否有足够的钱并且，如果角色购买了这些物品，则将其添加到玩家的库存中。

但是我想将商店使用的值以及与播放器相关的所有内容保留在不同的类文件中。事情是，我不知道如何拉那样的东西。

因此，不可能从另一个文件中的另一个类访问一个类的变量吗？如果不是，您如何建议我解决这个问题？

用户名

从这里开始阅读：编译/链接过程如何工作？让多个文件为您服务。奇怪的是，无论您使用哪种编码环境都可以为您自动完成该过程。

然后考虑制作一个物品类

class Item
{
public:
    Item(string name, int price): mName(name), mPrice(price)
    {
    }
    string getName()
    {
        return mName;
    }
    string getPrice()
    {
        return mPrice;
    }
    // other functions
private:
    string mName;
    int mPrice;
    // other stuff
}

在商店和播放器中，保留项目列表