using System;
using System.Collections;
using System.Security.Cryptography.X509Certificates;
using System.Threading;
namespace Lesson4_Hashtable练习题
{
    //因为一般管理器都是唯一的，所以做成单例模式的对象
    class MonsterMgr
    {
        private static MonsterMgr instance = new MonsterMgr();
        private Hashtable monstersTable = new Hashtable();
        private MonsterMgr()
        {

        }
        public static MonsterMgr Instance
        {
            get
            {
                return instance;
            }
        }
        
        private int monsterID = 0;

        public void AddMonster()
        {

            Monster monster = new Monster(monsterID);
            Console.WriteLine("创建了怪物"+monsterID);
            monsterID++;
            monstersTable.Add(monster.id, monster);
        }

        public void DeleteMonster(int monsterID)
        {
            if (monstersTable.ContainsKey(monsterID))
            {
                (monstersTable[monsterID] as Monster).Dead();
                monstersTable.Remove(monsterID);
            }
        }
    }
    class Monster
    {
        public int id;
        public Monster(int id)
        {
            this.id = id;
        }
        public void Dead()
        {
            Console.WriteLine("怪物"+id+"死亡");
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            MonsterMgr.Instance.AddMonster();
            MonsterMgr.Instance.AddMonster();
            MonsterMgr.Instance.AddMonster();
            MonsterMgr.Instance.AddMonster();
            MonsterMgr.Instance.AddMonster();
            MonsterMgr.Instance.DeleteMonster(0);
            MonsterMgr.Instance.DeleteMonster(3);

        }
    }
}