game_input.cpp

我做的毕业设计

#include "Game_User.h"
CGInput::CGInput(HINSTANCE hInstance,HWND hWnd)
{
	//创建DirectInput8对象
 	if(DI_OK!=DirectInput8Create( hInstance,DIRECTINPUT_VERSION,
		IID_IDirectInput8,(LPVOID*)&m_pDInput,NULL))
		MessageBox(hWnd,"创建DirectInput 对象失败!","ERROR",MB_ICONERROR|MB_OK);
	

	//创建键盘设备
	if(DI_OK!=m_pDInput->CreateDevice(GUID_SysKeyboard,&m_pDInputKB,NULL))
		MessageBox(hWnd,"创建键盘设备失败!","ERROR",MB_ICONERROR|MB_OK);
	//设置数据格式
	if(DI_OK!=	m_pDInputKB->SetDataFormat(&c_dfDIKeyboard)) 
		MessageBox(hWnd,"设置键盘数据格式失败!","ERROR",MB_ICONERROR|MB_OK); 
	//设置协调层级
	m_pDInputKB->SetCooperativeLevel(hWnd,DISCL_NONEXCLUSIVE|DISCL_FOREGROUND); 
	m_pDInputKB->Acquire();		//如果失败，获取数据时再尝试获取


	//创建鼠标设备
	if(DI_OK!=m_pDInput->CreateDevice(GUID_SysMouse,&m_pDInputMouse,NULL))
		MessageBox(hWnd,"创建鼠标设备失败!","ERROR",MB_ICONERROR|MB_OK);	
	//设置数据格式
	if(DI_OK!=	m_pDInputMouse->SetDataFormat(&c_dfDIMouse)) 
		MessageBox(hWnd,"设置鼠标数据格式失败!","ERROR",MB_ICONERROR|MB_OK); 
	//设置协调层级
	m_pDInputMouse->SetCooperativeLevel(hWnd,/*DISCL_NONEXCLUSIVE|DISCL_FOREGROUND*/ DISCL_EXCLUSIVE|DISCL_FOREGROUND); 
	m_pDInputMouse->Acquire();	//如果失败，获取数据时再尝试获取

	//清除状态
	memset(&m_strKeyState,0,sizeof(m_strKeyState));		
	memset(&m_strKeyStateOld,0,sizeof(m_strKeyState));	
	memset(&m_MouseState,0,sizeof(m_MouseState));		
	memset(&m_MouseStateOld,0,sizeof(m_MouseState));	
}
CGInput::~CGInput(void)
{
	m_pDInputMouse->Unacquire();
	m_pDInputKB->Unacquire();
	SAFE_RELEASE(m_pDInputMouse);
	SAFE_RELEASE(m_pDInputKB);
	SAFE_RELEASE(m_pDInput);
}
LRESULT CGInput::Update(void)
{
	memcpy(m_strKeyStateOld,m_strKeyState,sizeof(m_strKeyState));
	memcpy(&m_MouseStateOld,&m_MouseState,sizeof(m_MouseState));  

	if(DI_OK!=m_pDInputKB->GetDeviceState(sizeof(m_strKeyState),m_strKeyState))
	{
		//清除上一次的状态
		memset(&m_strKeyState,0,sizeof(m_strKeyState));	
		m_pDInputKB->Acquire();
	}

	if(DI_OK!=m_pDInputMouse->GetDeviceState(sizeof(m_MouseState),&m_MouseState))
	{	
		//清除上一次的状态
		memset(&m_MouseState,0,sizeof(m_MouseState));	
		m_pDInputMouse->Acquire();
	}
  	return DI_OK;
}