// Design Pattern.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
#include <vector>
using namespace std;



//玩家存档类，备份，相当于模式中的Memento
class PlayerMemento
{
	//这里我们将其作为Player类的友元类，可以直接访问其private变量
	friend class Player;
private:
	int m_hp;  //血量
	int m_ATK; //攻击
	int m_DEF; //防御
public:
	PlayerMemento(int hp, int atk, int def)
		: m_hp(hp), m_ATK(atk), m_DEF(def)
	{

	}
};

//存档点，存储备忘录的地方，相当于Caretake
class CheckPoint
{
private:
	vector<PlayerMemento*> m_MementoVector;
public:
	//存档
	void Save(PlayerMemento* memento)
	{
		m_MementoVector.push_back(memento);
	}

	//根据存档编号获得存档
	PlayerMemento* Load(int num)
	{
		return m_MementoVector[num];
	}

	//表忘了清空对象
	void Clear()
	{
		for (vector<PlayerMemento*>::iterator it = m_MementoVector.begin(); it != m_MementoVector.end(); ++it)
		{
			delete *it;
		}
		m_MementoVector.resize(0);
	}
};

//玩家类，就是我们需要备份的类，相当于备忘录模式里面的Originator.
class Player
{
private:
	int m_hp;  //血量
	int m_ATK; //攻击
	int m_DEF; //防御
public:
	Player(int hp, int atk, int def)
		: m_hp(hp), m_ATK(atk), m_DEF(def)
	{

	}

	PlayerMemento* Save()
	{
		cout << "要去打Boss了，好紧张，存个档！" << endl;
		return new PlayerMemento(m_hp, m_ATK, m_DEF);
	}

	void Load(PlayerMemento* memento)
	{
		m_hp = memento->m_hp;
		m_ATK = memento->m_ATK;
		m_DEF = memento->m_DEF;
		cout << "哇咔咔，有存档，SL大法好！" << endl;
	}

	void Display()
	{
		cout << "当前生命： " << m_hp << " 当前攻击： " << m_ATK << " 当前防御： " << m_DEF << endl;
	}

	//受伤，减血
	void Hurt(int v)
	{
		m_hp -= v;
		if (m_hp <= 0)
		{
			m_hp = 0;
			cout << "OMG！我挂了！" << endl;
		}
			
	}
};

int _tmain(int argc, _TCHAR* argv[])
{
	//创建一个玩家对象，以及一个存档点对象
	Player* player = new Player(100, 200, 300);
	CheckPoint* checkPoint = new CheckPoint();
	player->Display();

	//每逢Boss必存档
	checkPoint->Save(player->Save());
	//受到10000点伤害，被boss秒了
	player->Hurt(10000);
	player->Display();

	//我有存档，我任性！
	player->Load(checkPoint->Load(0));
	player->Display();

	system("pause");
	

	return 0;
}