Csharp/C#进阶/Lesson12_委托练习/Program.cs

namespace Lesson12_委托练习
{
    #region 第一题
    abstract class Person()
    {
        public abstract void Eating();
    }
    
    class Mother : Person
    {
        public Action beginEat;

        public void Cooking()
        {
            Console.WriteLine("妈妈做饭");
            if (beginEat != null)
            {
                beginEat();
            }
        }
        public override void Eating()
        {
            Console.WriteLine("妈妈吃饭");
            
        }
    }
    class Father : Person
    {
        public override void Eating()
        {
            Console.WriteLine("爸爸吃饭");
        }
    }
    class Son : Person
    {
        public override void Eating()
        {
            Console.WriteLine("孩子吃饭");
        }
    }
    #endregion
    class Monster
    {
        //当怪物死亡时，把自己作为参数传出去
        public Action<Monster> deadDoSomething;
        public int money = 10;
        public void Dead()
        {
            Console.WriteLine("怪物死亡");
            if (deadDoSomething != null)
            {
                deadDoSomething(this);
            }
            
            deadDoSomething = null;//清空所需要做的事情（在这里就是怪物的击杀奖励已经领取了不要重复刷
                                   //一般有加就有减
        }
    }
    class Player
    {
        private int money = 0;
        public void MonsterDeadDoSomething(Monster m)
        {
            this.money += m.money;
            Console.WriteLine("玩家获得了" + m.money + "金币");
        }
    }
    class Panel
    {
        private int showNowMoney = 0;
        public void MonsterDeadDoSomething(Monster m)
        {
            this.showNowMoney += m.money;
            Console.WriteLine("面板显示当前金币" + showNowMoney);
        }
    }
    class Achievement
    {
        private int nowKillMonsterNum = 0;
        public void MonsterDeadDoSomething(Monster m)
        {
            nowKillMonsterNum += 1;
            Console.WriteLine("当前击杀了" + nowKillMonsterNum + "个怪物");
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello, World!");
            #region 第一题
            Mother mother = new Mother();
            Father father = new Father();
            Son son = new Son();

            mother.beginEat += father.Eating;
            mother.beginEat += son.Eating;
            mother.beginEat += mother.Eating;

            mother.Cooking();
            Console.WriteLine("_______________________");
            #endregion

            Monster m = new Monster();
            Player p = new Player();
            Panel panel = new Panel();
            Achievement achievement = new Achievement();

            m.deadDoSomething += p.MonsterDeadDoSomething;
            m.deadDoSomething += panel.MonsterDeadDoSomething;
            m.deadDoSomething += achievement.MonsterDeadDoSomething;
            m.Dead();
            m.Dead();
        }
        
    }
}