学习设计模式之State模式(状态模式)

引用一下某大的文章:

简单的说就是对某个对象的状态进行管理

举例,一个玩家释放某个技能会出现buff状态也可能出现debuff状态，那么我们使用一个manager来对buff和debuff进行相应的管理，这样的模式就是state模式。

1.Player.java

package com.xuyi.state;

public class Player {
	
	private String buff;
	
	private String debuff;
	
	BuffManager buffManager = new BuffManager(this);
	
	public void use_skill_1(){
		buffManager.skill_1();
		System.out.println("使用技能1----获得buff："+buff+"  获得debuff:"+debuff);
	}

	public void use_skill_2(){
		buffManager.skill_2();
		System.out.println("使用技能2----获得buff："+buff+"  获得debuff:"+debuff);
	}
	
	public String getBuff() {
		return buff;
	}

	public void setBuff(String buff) {
		this.buff = buff;
	}

	public String getDebuff() {
		return debuff;
	}

	public void setDebuff(String debuff) {
		this.debuff = debuff;
	}
	
	
	
}

 2.BuffManager.java

package com.xuyi.state;

public class BuffManager {
	private static final String buff_state_1="回春术";
	private static final String buff_state_2="魔法盾";
	
	private static final String debuff_state_1="燃烧";
	private static final String debuff_state_2="虚弱";
	
	private Player player;
	
	public BuffManager(Player player){
		this.player=player;
	}
	
	public void skill_1(){
		player.setBuff(buff_state_1);
		player.setDebuff(debuff_state_1);
	}
	
	public void skill_2(){
		player.setBuff(buff_state_2);
		player.setDebuff(debuff_state_2);
	}
}

 3.Test.java

package com.xuyi.state;

//state模式-状态模式:简单的说就是对某个对象的状态进行管理
public class Test {
	public static void main(String[] args) {
		Player player = new Player();
		player.use_skill_1();
		player.use_skill_2();
	}
}