// 設計模式測試.cpp : 定義控制檯應用程式的入口點。
// 命令模式

#include "stdafx.h"
#include <string>
#include <iostream>
#include <vector>
#include <list>

using namespace std;
/*********************命令模式_遙控器示例*************************************/

//燈類
class Light
{
public:
	void on() {
		cout << "Light On!" << endl;
	}
};
//門類
class Door
{
public:
	void open() {
		cout << "Door Open!" << endl;
	}
};
//命令介面
class ICommand
{
public:
	virtual void execute() = 0;
};
class LightOnCommand: public ICommand
{
public:
	Light *light;
	LightOnCommand(Light *light) {
		this->light = light;
	}
	virtual void execute() {
		light->on();
	}
};
class DoorOpenCommand : public ICommand
{
public:
	Door *door;
	DoorOpenCommand(Door *door) {
		this->door = door;
	}
	virtual void execute() {
		door->open();
	}
};
//遙控器
class SimpleRemoteControl {
public:
	ICommand *slot;
	void setCommand(ICommand *command) {
		slot = command;
	}
	void buttonWasPressed() {
		slot->execute();
	}
};
//主函式
int main()
{
	SimpleRemoteControl *remote = new SimpleRemoteControl();
	Light *light = new Light();
	Door *door = new Door();

	LightOnCommand *lightOn = new LightOnCommand(light);
	DoorOpenCommand *doorOpen = new DoorOpenCommand(door);

	remote->setCommand(lightOn);
	remote->buttonWasPressed();
	remote->setCommand(doorOpen);
	remote->buttonWasPressed();
	system("Pause");
	return 0;
}