命令模式案例

最新推荐文章于 2023-12-10 23:51:05 发布

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本文介绍了一个使用命令模式的游戏服务器设计，通过将不同的玩家请求转化为具体的命令对象，再由服务器按顺序处理这些命令来实现游戏逻辑的扩展性和维护性。

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#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <queue>
#include <windows.h>
using namespace std;

//协议处理类
class HandleClientProtocol
{
public:
	//处理增加金币
	void AddMoney()
	{
		cout << "给玩家增加金币！" << endl;
	}

	//处理增加钻石
	void AddDiamond()
	{
		cout << "给玩家增加钻石！" << endl;
	}

	//处理玩家装备
	void AddEquipment()
	{
		cout << "给玩家穿装备！" << endl;
	}

	//处理玩家升级
	void AddLevel()
	{
		cout << "给玩家升级！" << endl;
	}
};

//命令接口
class AbstractCommand
{
public:
	virtual void handle() = 0;
};

//处理增加金币请求
class AddMoneyCommand :public AbstractCommand
{
public:
	AddMoneyCommand(HandleClientProtocol* protocol)
	{
		this->pProtocol = protocol;
	}
	virtual void handle()
	{
		this->pProtocol->AddMoney();
	}
	HandleClientProtocol* pProtocol;
};

//处理增加钻石请求
class AddDiamondCommand :public AbstractCommand
{
public:
	AddDiamondCommand(HandleClientProtocol* protocol)
	{
		this->pProtocol = protocol;
	}
	virtual void handle()
	{
		this->pProtocol->AddDiamond();
	}
	HandleClientProtocol* pProtocol;
};

//处理穿装备请求
class AddEquipmentCommand :public AbstractCommand
{
public:
	AddEquipmentCommand(HandleClientProtocol* protocol)
	{
		this->pProtocol = protocol;
	}
	virtual void handle()
	{
		this->pProtocol->AddEquipment();
	}
	HandleClientProtocol* pProtocol;
};

//处理玩家升级请求
class AddLevelCommand :public AbstractCommand
{
public:
	AddLevelCommand(HandleClientProtocol* protocol)
	{
		this->pProtocol = protocol;
	}
	virtual void handle()
	{
		this->pProtocol->AddLevel();
	}
	HandleClientProtocol* pProtocol;
};


//服务器程序
class Server
{
public:
	void addRequest(AbstractCommand* command)
	{
		mCommand.push(command);
	}
	void startHandle()
	{
		while (!mCommand.empty())
		{
			Sleep(2000);

			AbstractCommand* command = mCommand.front();
			command->handle();
			mCommand.pop();
		}
	}
	queue<AbstractCommand*> mCommand;
};

void test01()
{
	HandleClientProtocol* protocol = new HandleClientProtocol;
	//客户端增加金币的请求
	AbstractCommand* addmoney = new AddMoneyCommand(protocol);
	//客户端增加钻石的请求
	AbstractCommand* adddiamond = new AddDiamondCommand(protocol);
	//客户端穿装备的请求
	AbstractCommand* addequipment = new AddEquipmentCommand(protocol);
	//客户端升级请求
	AbstractCommand* addlevel = new AddLevelCommand(protocol);

	Server* server = new Server;
	//将客户端请求加入到处理队列中
	server->addRequest(addmoney);
	server->addRequest(adddiamond);
	server->addRequest(addequipment);
	server->addRequest(addlevel);

	//服务器开始处理请求
	server->startHandle();
}


int main()
{
	test01();
	

	return 0;
}