c#设计模式-状态模式（4）

using System;
using System.Collections.Generic;
using System.Text;

namespace 状态模式
{
class Program
{
static void Main(string[] args)
{
//紧急项目
Work emergencyProjects = new Work();
emergencyProjects.Hour = 9;
emergencyProjects.WriteProgram();
emergencyProjects.Hour = 10;
emergencyProjects.WriteProgram();
emergencyProjects.Hour = 12;
emergencyProjects.WriteProgram();
emergencyProjects.Hour = 13;
emergencyProjects.WriteProgram();
emergencyProjects.Hour = 14;
emergencyProjects.WriteProgram();
emergencyProjects.Hour = 17;

//emergencyProjects.WorkFinished = true;
emergencyProjects.TaskFinished = false;

emergencyProjects.WriteProgram();
emergencyProjects.Hour = 19;
emergencyProjects.WriteProgram();
emergencyProjects.Hour = 22;
emergencyProjects.WriteProgram();

Console.Read();
}
}

//抽象状态
public abstract class State
{
public abstract void WriteProgram(Work w);
}

//上午工作状态
public class ForenoonState : State
{
public override void WriteProgram(Work w)
{
if (w.Hour < 12)
{
Console.WriteLine("当前时间：{0}点 上午工作，精神百倍", w.Hour);
}
else
{
w.SetState(new NoonState());
w.WriteProgram();
}
}
}

//中午工作状态
public class NoonState : State
{
public override void WriteProgram(Work w)
{
if (w.Hour < 13)
{
Console.WriteLine("当前时间：{0}点 饿了，午饭；犯困，午休。", w.Hour);
}
else
{
w.SetState(new AfternoonState());
w.WriteProgram();
}
}
}

//下午工作状态
public class AfternoonState : State
{
public override void WriteProgram(Work w)
{
if (w.Hour < 17)
{
Console.WriteLine("当前时间：{0}点 下午状态还不错，继续努力", w.Hour);
}
else
{
w.SetState(new EveningState());
w.WriteProgram();
}
}
}

//晚间工作状态
public class EveningState : State
{
public override void WriteProgram(Work w)
{
if (w.TaskFinished)
{
w.SetState(new RestState());
w.WriteProgram();
}
else
{
if (w.Hour < 21)
{
Console.WriteLine("当前时间：{0}点 加班哦，疲累之极", w.Hour);
}
else
{
w.SetState(new SleepingState());
w.WriteProgram();
}
}
}
}

//睡眠状态
public class SleepingState : State
{
public override void WriteProgram(Work w)
{
Console.WriteLine("当前时间：{0}点 不行了，睡着了。", w.Hour);
}
}

//下班休息状态
public class RestState : State
{
public override void WriteProgram(Work w)
{
Console.WriteLine("当前时间：{0}点 下班回家了", w.Hour);
}
}

//工作
public class Work
{
private State current;
public Work()
{
current = new ForenoonState();
}

private double hour;
public double Hour
{
get { return hour; }
set { hour = value; }
}

private bool finish = false;
public bool TaskFinished
{
get { return finish; }
set { finish = value; }
}

public void SetState(State s)
{
current = s;
}

public void WriteProgram()
{
current.WriteProgram(this);
}
}

}