手把手教你制作C++农场游戏

最新推荐文章于 2025-10-23 13:43:42 发布

原创最新推荐文章于 2025-10-23 13:43:42 发布 · 723 阅读

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引言

农场类游戏因其轻松愉快的玩法和简单的机制，成为编程初学者的理想练习项目。本文将带你一步步用C++实现一个基础农场游戏，涵盖面向对象编程、游戏循环和用户交互等核心概念。

游戏功能规划

‌作物生长系统‌：模拟不同作物的生长周期
‌土地管理‌：5x5的可种植土地网格
‌时间推进‌：按天计算作物生长进度
‌用户交互‌：通过菜单进行操作

代码实现

1. 基类与派生类设计

class Crop {
protected:
    std::string name;
    int growthDays;
    float buyPrice;
    float sellPrice;
    int currentGrowth;
public:
    virtual void grow() = 0;
    virtual char getSymbol() const = 0;
    virtual ~Crop() = default;
};

class Wheat : public Crop {
public:
    Wheat() {
        name = "Wheat";
        growthDays = 3;
        buyPrice = 10;
        sellPrice = 15;
        currentGrowth = 0;
    }
    void grow() override {
        if(currentGrowth < growthDays) currentGrowth++;
    }
    char getSymbol() const override {
        return currentGrowth == growthDays ? 'W' : 'w';
    }
};

2. 农场管理系统

class Farm {
private:
    std::vector<std::vector<std::unique_ptr<Crop>>> land;
    int width;
    int height;
public:
    Farm(int w, int h) : width(w), height(h), land(h, std::vector<std::unique_ptr<Crop>>(w)) {}
    
    void plantCrop(int x, int y, Crop* crop) {
        if(x >= 0 && x < width && y >= 0 && y < height) {
            land[y][x].reset(crop);
        }
    }
    
    void update() {
        for(auto& row : land) {
            for(auto& crop : row) {
                if(crop) crop->grow();
            }
        }
    }
    
    void display() const {
        for(const auto& row : land) {
            for(const auto& crop : row) {
                std::cout << (crop ? crop->getSymbol() : '.') << " ";
            }
            std::cout << std::endl;
        }
    }
};

3. 游戏主循环

class GameEngine {
private:
    Farm farm;
    int dayCount;
public:
    GameEngine() : farm(5, 5), dayCount(0) {}
    
    void run() {
        while(true) {
            displayMenu();
            handleInput();
            updateGame();
        }
    }
    
    void displayMenu() const {
        std::cout << "\nDay " << dayCount << "\n";
        farm.display();
        std::cout << "\n1. Plant wheat\n2. Next day\n3. Exit\n";
    }
    
    void handleInput() {
        int choice;
        std::cin >> choice;
        
        switch(choice) {
            case 1: {
                int x, y;
                std::cout << "Enter position (x y): ";
                std::cin >> x >> y;
                farm.plantCrop(x, y, new Wheat());
                break;
            }
            case 3:
                exit(0);
        }
    }
    
    void updateGame() {
        farm.update();
        dayCount++;
    }
};

int main() {
    GameEngine engine;
    engine.run();
    return 0;
}