elevator1.cpp

常考设计题

// Elevator1.cpp: implementation of the CElevator class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "Elevator.h"
#include "Elevator1.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CElevator* CElevator::pThis ;

CElevator::CElevator():m_stayAtFloor(16),m_door(4),m_move(8),m_space(0.125)
{
	//初始化定时器ID号
	m_timerID=0;
	m_aim =0;
	m_bStay =false;
	m_direction =0;
	for(int i=0;i<9;i++)
	{
	m_upRequest [i]=0;
	m_downRequest [i]=0;
	m_destRequest [i]=0;
	};
	m_destRequest [9]=0;
	m_upRequestTime =0;
	m_downRequestTime =0;
	m_destRequestTime =0;
	m_location =FLOOR_1;
	m_nextFloor =0;
	m_stayTime =0;
	
}

CElevator::~CElevator()
{

}

//接收某个楼层发出的向上呼叫请求
//floor代表发出呼叫的楼层
void CElevator::RequestUp(int floor)
{	
	if (m_upRequest  [floor-1] ==0 )
	{
		switch (m_direction)
		{
		case 1 :
			{
				if (m_location+1<=floor+1000)
				{
					m_upRequestTime +=1;
					m_upRequest[floor-1]=1;
				}
				else
				{
					StopHighLight(UP_1+floor-1);
				}
			}break;
		case 0 :
			{
				if (m_location <floor+1000)
				{
					m_direction =1;
					m_upRequestTime +=1;
					m_upRequest[floor-1]=1;
				}
				if (m_location >floor+1000)
				{
					m_direction =-1;
					m_upRequestTime +=1;
					m_upRequest[floor-1]=1;
				}
				if (m_location ==floor+1000)
				{
					StopHighLight (UP_1+floor-1);
				}
			}break;
		case -1 :
			{
				m_upRequestTime +=1;
				m_upRequest[floor-1]=1;
			}break;
		}
	}
}

//接收某个楼层发出的向下呼叫请求
//floor代表发出呼叫的楼层
void CElevator::RequestDown(int floor)
{
	if (m_downRequest  [floor-1] ==0 )
	{
		switch (m_direction)
		{
		case -1 :
			{
				if (m_location+1>floor+1000)
				{
					m_downRequestTime +=1;
					m_downRequest[floor-1]=1;
				}
				else
				{
					StopHighLight(DOWN_2+floor-2);
				}
			}break;
		case 0 :
			{
				if (m_location <floor+1000)
				{
					m_direction =1;
					m_downRequestTime +=1;
					m_downRequest[floor-1]=1;
				}
				if (m_location >floor+1000)
				{
					m_direction =-1;
					m_downRequestTime +=1;
					m_downRequest[floor-1]=1;
				}
				if (m_location ==floor+1000)
				{
					StopHighLight (DOWN_2+floor-2);
				}
			}break;
		case 1 :
			{
				m_downRequestTime +=1;
				m_downRequest[floor-1]=1;
			}break;
		}
	}
	
}

//接收电梯内部乘客发出的到达某一目标楼层的呼叫请求
//floor代表发出的目标楼层呼叫
void CElevator::RequestDest(int floor)
{
	if (m_destRequest  [floor-1] ==0 )
	{
		switch (m_direction)
		{
		case -1 :
			{
				if (m_location+1>=floor+1000)
				{
					m_destRequestTime +=1;
					m_destRequest[floor-1]=1;
				}
				else
				{
					StopHighLight(DEST_1+floor-1);
				}
			}break;
		case 0 :
			{
				if (m_location <floor+1000)
				{
					m_direction =1;
					m_destRequestTime +=1;
					m_destRequest[floor-1]=1;
				}
				if (m_location >floor+1000)
				{
					m_direction =-1;
					m_destRequestTime +=1;
					m_destRequest[floor-1]=1;
				}
				if (m_location ==floor+1000)
				{
					StopHighLight (DEST_1+floor-1);
				}
			}break;
		case 1 :
			{
				if (m_location+1<=floor+1000)
				{
					m_destRequestTime +=1;
					m_destRequest[floor-1]=1;
				}
				else
				{
					StopHighLight(DEST_1+floor-1);
				}
			}break;
		}
	}
}

//处理用户按下电梯轿厢内的“Go”按钮请求
void CElevator::CloseDoor()
{
	m_stayTime=12;
}

//电梯的运行逻辑
void CElevator::Move()
{
	switch (m_aim)
	{
	case 1 : 	{
		HighLight(LIGHT_UP);
		m_location +=m_space;
		StopHighLight((int)m_location-1);
		HighLight((int)m_location);
				}
		break;
	case 0 :	{
		StopHighLight(LIGHT_UP);
		StopHighLight(LIGHT_DOWN);
		m_location +=0;
				}
		break;
	case -1	:	{
		HighLight(LIGHT_DOWN);
		m_location -=m_space ;
		StopHighLight((int)m_location+1);
		HighLight((int)m_location);
				}
		break;
	}
/*						if  ((m_destRequestTime ==0)){HighLight(GO);}
						else {StopHighLight (GO);}
						if  ((m_destRequestTime ==-1)){HighLight(UP_1);}
						else {StopHighLight (UP_1);}
						if  ((m_destRequestTime ==1)){HighLight(UP_2);}
						else {StopHighLight (UP_2);}
						if  ((m_direction==0)){HighLight(DOWN_2);}
						else {StopHighLight (DOWN_2);} */
}

//获取当前电梯所处的位置
float CElevator::GetLocation()
{
	return m_location;
}

//获取电梯的运行状态
int CElevator::GetStatus()
{
	return m_direction;
}


//电梯运行的中央控制逻辑
//主要功能是确定电梯运行的下一个目标楼层
void CElevator::CentralControl()
{
	switch (m_direction)
	{
	case 1 :
		{
			if ((m_upRequestTime ==0)&&(m_destRequestTime ==0))
			{
				if (m_downRequestTime ==0)
				{
					m_direction=0;
				}
				else
					for (int i=9;i>0;i--)
					{
						if (m_downRequest [i-1] ==1)
						{
							if (m_location <1000+i)
							{
								m_direction=1;
							}
							if (m_location >1000+i)
							{
								m_direction=-1;
							}
							i=1;
						}
					}
			}
		}break;
	case -1 :
		{
			if ((m_downRequestTime ==0)&&(m_destRequestTime ==0))
			{
				if (m_upRequestTime ==0)
				{
					m_direction=0;
				}
				else
					for (int i=1;i<9;i++)
					{
						if (m_upRequest [i-1] ==1)
						{
							if (m_location <1000+i)
							{
								m_direction=1;
							}
							if (m_location >1000+i)
							{
								m_direction=-1;
							}
							i=9;
						}
					}
			}
		}break;
	}
}

int CElevator::IsStay()
{
	if (m_location==(int)m_location) 
	{
		switch (m_direction )
		{
		case 1 :
			{
				if ((m_downRequest [(int)m_location-1001]==1)&&(m_upRequestTime==0)&&(m_destRequestTime==0))
				{
					m_bStay=true;
					m_downRequest [(int)m_location-1001]=0;
					m_downRequestTime -=1;
					StopHighLight (DOWN_2+(int)m_location-1002);
				}
				if (m_upRequest [(int)m_location-1001]==1)
				{
					m_bStay=true;
					m_upRequest [(int)m_location-1001]=0;
					m_upRequestTime -=1;
					StopHighLight (UP_1+(int)m_location-1001);
				}
				if (m_destRequest [(int)m_location-1001]==1)
				{	
					m_bStay=true;
					m_destRequest [(int)m_location -1001]=0;
					m_destRequestTime -=1;
					StopHighLight (DEST_1+(int)m_location-1001);
				}	
			}break;
		case -1 :
			{
				if ((m_upRequest [(int)m_location-1001]==1)&&(m_downRequestTime==0)&&(m_destRequestTime==0))
				{
					m_bStay=true;
					m_upRequest [(int)m_location-1001]=0;
					m_upRequestTime -=1;
					StopHighLight (UP_1+(int)m_location-1001);
				}
				if (m_downRequest [(int)m_location-1001]==1)
				{
					m_bStay=true;
					m_downRequest [(int)m_location-1001]=0;
					m_downRequestTime -=1;
					StopHighLight (DOWN_2+(int)m_location-1002);
				}
				if (m_destRequest [(int)m_location-1001]==1)
				{
					m_bStay=true;
					m_destRequest [(int)m_location -1001]=0;
					m_destRequestTime -=1;
					StopHighLight (DEST_1+(int)m_location-1001);
				}
			}break;
		}
		if (m_bStay==true)
		{
			m_aim=0;
			m_stayTime +=1;
			if (m_stayTime ==16)
			{
				m_stayTime =0;
				m_bStay=false;
			}
		}
		else
		{
			StopHighLight(GO);
			m_aim =m_direction;
		}
	}
	return m_stayTime;
}

//设置定时器
//参数表示设置的定时器时间间隔，单位为毫秒
void CElevator::SetMyTimer(UINT nElapse)
{
	m_timerID = ::SetTimer(NULL,NULL,nElapse,MyTimerProc);
    pThis=this;
	
}

//取消定时器
void CElevator::KillMyTimer()
{
	KillTimer (NULL,m_timerID);
}

//定时器触发事件
//后面的参数是预定义的，与逻辑无关。
void CALLBACK CElevator::MyTimerProc(HWND hwnd, UINT uMsg, UINT idEvent, DWORD dwTime)
{
//
	pThis->CentralControl ();
	pThis->IsStay ();
	pThis->Move ();
	

}