XEngine/Input.cpp at master · xiangyubo/XEngine · GitHub

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#include "Input.h"
#include "RenderableThing.h"

BOOL Input::Init(int w, int h)
{
    mouse.leftButton = FALSE;
    mouse.righBtutton = FALSE;
    mouse.location.x = w / 2;
    mouse.location.y = h / 2;
    ZeroMemory(keyboard, sizeof(keyboard));

    return TRUE;
}

void Input::CopyData(Input *input)
{
    input->mouse = mouse;
    memcpy(&input->keyboard, keyboard, sizeof(keyboard));
}

BOOL Input::IsPressed(unsigned int key)
{
    return (key < MAX_KEYS) ? (keyboard[key] == TRUE) : FALSE;
}

Input::MouseState Input::GetMouseState()
{
    return mouse;
}

void Input::Frame(UINT uMessage, WPARAM wParam, LPARAM lParam)
{
    switch (uMessage)
    {
    case WM_KEYDOWN:    //键盘按下
        if ((unsigned int)wParam < MAX_KEYS)
        {
            keyboard[(unsigned int)wParam] = TRUE;
        }
        break;

    case WM_KEYUP:      //键盘弹起
        if ((unsigned int)wParam < MAX_KEYS)
        {
            keyboard[(unsigned int)wParam] = FALSE;
        }
        break;

    case WM_LBUTTONDBLCLK:  //鼠标左键按下
        mouse.leftButton = TRUE;
        break;

    case WM_LBUTTONUP:      //鼠标左键弹起
        mouse.leftButton = FALSE;
        break;

    case WM_RBUTTONDBLCLK:  //鼠标右键按下
        mouse.righBtutton = TRUE;
        break;

    case WM_RBUTTONUP:      //鼠标右键弹起
        mouse.righBtutton = FALSE;
        break;

    case WM_MOUSEMOVE:      //鼠标移动，坐标相对于用户区，原点左上角
        mouse.location = MAKEPOINTS(lParam);
        break;
    }
}

void Input::AddObserver(RenderableThing *obs)
{
    observers.push_back(obs);
}

void Input::DeleteObserver(RenderableThing *obs)
{
    for(auto it = observers.begin(); it != observers.end(); ++it)
    {
        if((*it) == obs)
        {
            observers.erase(it);
            break;
        }
    }
}

void Input::InforObservers()
{
    for(auto it = observers.begin(); it != observers.end(); ++it)
    {
        (*it)->HandleInput(this);
    }
}