game_input.cpp

自己写的一个D3D游戏Dome。实现了基本的游戏功能

#include "..\Include\Game_Input.h"

Game_Input::Game_Input(){
	m_pDInput=0;
	m_pDInputKB=0;
	m_pDInputMouse=0;
}

void Game_Input::Init(){
	//创建DirectInput8对象
	DirectInput8Create(GetModuleHandle(NULL),DIRECTINPUT_VERSION,IID_IDirectInput8,(VOID**)&m_pDInput,NULL);
	//创建键盘设备
	m_pDInput->CreateDevice(GUID_SysKeyboard,&m_pDInputKB,NULL);
	//设置数据格式
	m_pDInputKB->SetDataFormat(&c_dfDIKeyboard);
	//设置键盘协调级别
	m_pDInputKB->SetCooperativeLevel(g_sGlobal.g_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
	m_pDInput->CreateDevice(GUID_SysMouse,&m_pDInputMouse,NULL);
	//设置数据格式
	m_pDInputMouse->SetDataFormat(&c_dfDIMouse);
	//设置鼠标协调级别
	m_pDInputMouse->SetCooperativeLevel(g_sGlobal.g_hwnd,DISCL_NONEXCLUSIVE|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));
}

void Game_Input::Release(){
	m_pDInputMouse->Unacquire();//取消鼠标获取状态
	m_pDInputKB->Unacquire();//取消键盘获取状态
	//释放COM
	SAFE_RELEASE(m_pDInputMouse);
	SAFE_RELEASE(m_pDInputKB);
	SAFE_RELEASE(m_pDInput);
}

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