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【设计模式】题目小练2

news 2025/9/13 8:11:25

// 题1. AI 对话系统

// 你要做一个 NPC 对话系统：

// 不同 NPC 有不同的对话脚本（村民、商人、战士）。

// 同时对话还会受玩家状态影响（任务是否完成、声望高低）。

// 👉 请结合模板方法模式和策略模式，设计一下系统结构。

using System;// 抽象策略
public interface ISpeakStrategy
{string Execute();
}// 具体策略
public class RespectStrategy : ISpeakStrategy
{public string Execute() => "尊敬";
}
public class StrangeStrategy : ISpeakStrategy
{public string Execute() => "陌生";
}
public class SeriousStrategy : ISpeakStrategy
{public string Execute() => "严肃";
}
public class AppreciateStrategy : ISpeakStrategy
{public string Execute() => "赞赏";
}// 模板方法模式 —— NPC基类
public abstract class NPC
{// 模板方法：定义固定流程public void Talk(ISpeakStrategy strategy){Greet();CoreDialogue(strategy);Farewell();}protected abstract void Greet();                    // 打招呼protected abstract void CoreDialogue(ISpeakStrategy strategy);  // 核心对话protected abstract void Farewell();                 // 告别
}// 具体NPC
public class Villager : NPC
{protected override void Greet() => Console.WriteLine("村民：你好啊！");protected override void CoreDialogue(ISpeakStrategy strategy)=> Console.WriteLine($"村民用「{strategy.Execute()}」的语气交谈。");protected override void Farewell() => Console.WriteLine("村民：路上小心！");
}public class Merchant : NPC
{protected override void Greet() => Console.WriteLine("商人：客官请进。");protected override void CoreDialogue(ISpeakStrategy strategy)=> Console.WriteLine($"商人用「{strategy.Execute()}」的语气讨价还价。");protected override void Farewell() => Console.WriteLine("商人：欢迎下次光临！");
}public class Warrior : NPC
{protected override void Greet() => Console.WriteLine("战士：哼，你找我吗？");protected override void CoreDialogue(ISpeakStrategy strategy)=> Console.WriteLine($"战士用「{strategy.Execute()}」的语气交流。");protected override void Farewell() => Console.WriteLine("战士：走好，不要添麻烦。");
}// 玩家状态决定策略
public class Player
{public bool IsCompletedTask { get; set; }public float Reputation { get; set; }public ISpeakStrategy ChooseStrategyByTask()=> IsCompletedTask ? new SeriousStrategy() : new AppreciateStrategy();public ISpeakStrategy ChooseStrategyByReputation()=> Reputation >= 60f ? new RespectStrategy() : new StrangeStrategy();
}// 客户端测试
public class Client
{public static void Main(){Player player = new Player { IsCompletedTask = true, Reputation = 80 };NPC villager = new Villager();NPC merchant = new Merchant();NPC warrior = new Warrior();villager.Talk(player.ChooseStrategyByReputation());merchant.Talk(player.ChooseStrategyByReputation());warrior.Talk(player.ChooseStrategyByTask());}
}