Cocos2d-x Win32键盘模拟触摸事件

        ​Cocos2d-x支持在Win32下鼠标的单击进行模拟响应触摸事件，也即只支持模拟单点触摸。在之前的文章《如何制作一个横版格斗过关游戏 Cocos2d-x 2.0.4》中带有方向键和攻击键，鼠标的单点触摸已经不能满足在Win32下进行测试的要求，在这里进行扩展让键盘同时模拟响应触摸事件。

Cocos2d-x版本：2.1.3
修改proj.win32文件夹的main.cpp，改后文件内容如下：

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#include  "main.h" #include  "AppDelegate.h" #include  "CCEGLView.h" USING_NS_CC; LRESULT myWndProcHook(UINT message, WPARAM wParam, LPARAM lParam, BOOL* pProcessed); // uncomment below line, open debug console // #define USE_WIN32_CONSOLE int APIENTRY _tWinMain(HINSTANCE hInstance,                        HINSTANCE hPrevInstance,                        LPTSTR    lpCmdLine,                         int       nCmdShow) {     UNREFERENCED_PARAMETER(hPrevInstance);     UNREFERENCED_PARAMETER(lpCmdLine); #ifdef USE_WIN32_CONSOLE     AllocConsole();     freopen( "CONIN$",  "r", stdin);     freopen( "CONOUT$",  "w", stdout);     freopen( "CONOUT$",  "w", stderr); #endif      // create the application instance     AppDelegate app;     CCEGLView* eglView = CCEGLView::sharedOpenGLView();     eglView->setFrameSize( 480,  320);      //eglView->setFrameSize(960, 640);      //eglView->setFrameSize(2048, 1536);      //eglView->setFrameZoomFactor(0.4f);     eglView->setWndProc(myWndProcHook);  //增加这一句      int ret = CCApplication::sharedApplication()->run(); #ifdef USE_WIN32_CONSOLE     FreeConsole(); #endif      return ret; } LRESULT myWndProcHook(UINT message, WPARAM wParam, LPARAM lParam, BOOL* pProcessed) {      switch (message)     {      case WM_KEYDOWN:      case WM_KEYUP:         {              //以FrameSize == DesignResolutionSize时的坐标设定             CCPoint pt = CCPointZero;              switch (wParam)             {              case  'A':    //向左                 {                     pt = ccp( 25,  255);                 }                  break;              case  'D':    //向右                 {                     pt = ccp( 95,  256);                 }                  break;              case  'W':    //向上                 {                     pt = ccp( 63,  214);                 }                  break;              case  'S':    //向下                 {                     pt = ccp( 62,  290);                 }                  break;              case  'J':    //攻击                 {                     pt = ccp( 367,  277);                 }                  break;              case  'K':    //跳跃                 {                     pt = ccp( 445,  247);                 }                  break;              default:                  return  0;             }              if (GetKeyState( 'D') & 0x8000)             {                  if (GetKeyState( 'W') & 0x8000)       //右上角                 {                     pt = ccp( 91,  227);                 }                  else  if (GetKeyState( 'S') & 0x8000)  //右下角                 {                     pt = ccp( 91,  284);                 }             }              else  if (GetKeyState( 'A') & 0x8000)             {                  if (GetKeyState( 'W') & 0x8000)       //左上角                 {                     pt = ccp( 36,  227);                 }                  else  if (GetKeyState( 'S') & 0x8000)  //左下角                 {                     pt = ccp( 36,  284);                 }             }             CCEGLView* eglView = CCEGLView::sharedOpenGLView();             CCSize originalDesignResolutionSize = CCSizeMake( 480,  320);      //原始的设计分辨率大小             ResolutionPolicy eResolutionPolicy = kResolutionFixedWidth;      //分辨率策略             CCSize obDesignResolutionSize = eglView->getDesignResolutionSize();              int offsetWidth = obDesignResolutionSize.width - originalDesignResolutionSize.width;              int offsetheight = obDesignResolutionSize.height - originalDesignResolutionSize.height;             CCSize obScreenSize = eglView->getFrameSize();              int offsetWidth2 = obScreenSize.width - originalDesignResolutionSize.width;              int offsetheight2 = obScreenSize.height - originalDesignResolutionSize.height;              switch (eResolutionPolicy)             {              case kResolutionExactFit:                 {                      //...                 }                  break;              case kResolutionNoBorder:                 {                      //...                 }                  break;              case kResolutionShowAll:                 {                     pt.x += offsetWidth2 /  2;                     pt.y += offsetheight2 /  2;                 }                  break;              case kResolutionFixedHeight:                 {                      //...                 }                  break;              case kResolutionFixedWidth:                 {                     pt.y += offsetheight;                 }                  break;             }                          pt.x *= eglView->getScaleX();             pt.y *= eglView->getScaleY();              int id = wParam;              if (message == WM_KEYDOWN)             {                 eglView->handleTouchesBegin( 1, &id, &pt.x, &pt.y);             }              else             {                 eglView->handleTouchesEnd( 1, &id, &pt.x, &pt.y);             }             *pProcessed = TRUE;         }          break;     }      return  0; }

从上面代码可以看出，并不直接调用逻辑函数，而是通过调用触摸事件。坐标是以窗口为设计分辨率时来计算的，例如这里的480x320，分辨率改变后会自动计算改变后对于的坐标。

键盘对应的触摸事件如下图所示：

另外，向右+向上=右上角，类似的可以让角色进行对角的行走。