Question

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之后，以及它的数量，（尚未编程）检查组合物品的价格，并查看角色有足够的钱，如果角色购买物品，将它们添加到玩家的库存中。

但是我想保留商店使用的值，以及与不同类文件中的播放器相关的所有内容。事情是，我不知道如何拉这样的东西。

那么，是否可以从另一个文件中的另一个类中访问一个类'变量？如果不是，你会如何建议我解决这个问题？

Answer 1

从这里开始阅读：How does the compilation/linking process work?以获取多个适合您的文件。无论您使用何种编码环境，都可以自动完成整个过程。

然后考虑制作一个项目类

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
}

在商店和玩家中，保留一个项目列表

vector<Item> items;

当玩家试图购买物品时，在列表中找到它，确保玩家能够负担得起，将其从商店列表中删除并将其添加到玩家列表中。

从另一个类

1 个答案: