Question

我用c ++做了一个非常简单的游戏。大部分工作都很好，但每当我尝试重放游戏时，价值都不会重置并继续我最后一次离开的地方，这不是我想要它发生的事情。就像我们说的那样，在我的第一次尝试中，我击败了敌人并且它的生命值为零，当我重试它时，该值不会从100开始，但它从零开始。我真的想要解决这个问题。无论如何，这是我的代码（“它很长）：

#include <iostream> 
#include <string>
using namespace std;

class Health{
private:
    int health;
    Health(const Health& cpy){
        health = cpy.health;
    }
public:
     Health(){
        health = 100;
    }
    void display_health(){
        cout << "Health: " << health << endl;
    }

    Health& operator -=(int atk){
        health -= atk;
        return *this;
    }

    bool operator <(int compare){
        return (health < compare);
    }
    bool operator >(int compare){
        return !(this->operator<(compare));
    }
    bool operator &&(const int compare){
        return (health && compare);
    }
};

class Hero : public Health{
public:
    void kick(){
        cout << "Your kick damaged 45 health points" << endl;
    }
    void Punch(){
        cout << "Your punch damaged 25 health points" << endl;
    }
    void Knife(){
        cout << "Your kinfe damaged 60 health points" << endl;
    }
    void Tackle(){
        cout << "Your tackle damaged 10 health points" << endl;
    }
};

class Enemy : public Health{
public:
    void Basic_hit(){
        cout << "Enemy damaged you by 25 point" << endl;
    }
};

int main(){
    //local vaiables 
    string name;
    int choice;
    string ply_agn = "y";
    //instance
    Hero hero;
    Enemy enmy;
    //user interface
    do{ //entire game repeats
        cout << "Enter you character name: ";
        getline(cin, name);
        cout << "Your default health is : ";
        hero.display_health();
        cout << endl;
        do{
            //user interface
            cout << "0.Kick - 45" << endl;
            cout << "1.Punch - 25 " << endl;
            cout << "2.Kinfe -  60" << endl;
            cout << "3.Tackle - 10 " << endl;
            //players choice
            cout << "Which move you like to chose: ";
            cin >> choice;
            cout << endl;
            //switch function
            switch (choice)
            {
            case 0:
                hero.kick();
                cout << "Enemy ";
                enmy -= 45;
                enmy.display_health();
                break;
            case 1:
                hero.Punch();
                cout << "Enemy ";
                enmy -= 25;
                enmy.display_health();
                break;
            case 2:
                hero.Knife();
                cout << "Enemy ";
                enmy -= 60;
                enmy.display_health();
                break;
            case 3:
                hero.Tackle();
                cout << "Enemy ";
                enmy -= 10;
                enmy.display_health();
                break;
            default:
                cout << "Invalid move! Try again" << endl;
                break;
            }
            cout << endl;
            //Enemy move 
            enmy.Basic_hit();
            hero -= 25;
            cout << "The enemy hit you with a basic hit. You recieved 25 damage" << endl;
            cout << "Your ";
            hero.display_health();
            cout << endl;
        } while (enmy > 0);
        //winning condition
        if (enmy < 0 && hero > 0) {
            cout << "You won" << endl;
        }
        else if (hero < 0 && enmy > 0){
            cout << "You lose" << endl;
        }
        else if (hero < 0 && enmy < 0){
            cout << "This game is a draw" << endl;
        }
    } while (ply_agn == "y"); //This is where I think is messing up the game

        //repeating condition
        cout << "Would you like to play again: ";
        cin >> ply_agn;

    system("pause");
    return 0;
}

谢谢你的时间

Answer 1

点击

Hero hero;
Enemy enmy;

之后的do{

...
string ply_agn = "y";
//user interface
do{ //entire game repeats
    //instance
    Hero hero;
    Enemy enmy;
    ...

Answer 2

正如其他人所说，你需要将你的Hero和Enemy对象放在你的循环中，这样它们就会在游戏的每个循环之后重新创建。

你的程序中的另一个错误是你mix getline with cin，所以在你的下一个循环中，你将无法给你的角色一个新名字。为避免这种情况，您需要在cin.ignore函数调用之前放置getline()，如下所示

cin.ignore (std::numeric_limits<std::streamsize>::max(), '\n'); 
getline(cin, name);

此处，std::numeric_limits在标头<limits>中定义并被使用，因为它是流的最大大小，因此它会忽略许多换行符\n留在缓冲区cin。

作为最后的想法，你需要重复问题之前循环测试，就像这样

    cout << "Would you like to play again: ";
    cin >> ply_agn;
} while (ply_agn == "y");

否则ply_agn始终为y，用户将无法退出游戏： - ）

Answer 3

您从未在游戏开始时明确重置健康状况。如果您要通过这样的循环重置，则游戏的第一步应该是重置Hero和Enemy。只需将您声明它们作为do while循环中第一行的位置移动即可。

循环运行时错误

3 个答案: