Cocos2d-x Win32鍵盤類比觸摸事件

        Cocos2d-x支援在Win32下滑鼠的單擊進行類比響應觸摸事件，也即只支援類比單點觸摸。在之前的文章《如何製作一個橫版格鬥過關遊戲 Cocos2d-x 2.0.4》中帶有方向鍵和攻擊鍵，滑鼠的單點觸摸已經不能滿足在Win32下進行測試的要求，在這裡進行擴充讓鍵盤同時類比響應觸摸事件。

Cocos2d-x版本：2.1.3
修改proj.win32檔案夾的main.cpp，改後檔案內容如下：

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170

#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); //增加這一句     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時的座標設定             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':   //攻擊                 {                     pt = ccp(367, 277);                 }                 break;             case 'K':   //跳躍                 {                     pt = ccp(445, 247);                 }                 break;             default:                 return 0;             }             if (GetKeyState('D') & 0x8000)             {                 if (GetKeyState('W') & 0x8000)      //右上方                 {                     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)      //左上方                 {                     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);     //原始的設計解析度大小             ResolutionPolicy eResolutionPolicy = kResolutionFixedWidth;     //解析度策略             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; }

從上面代碼可以看出，並不直接調用邏輯函數，而是通過調用觸摸事件。座標是以視窗為設計解析度時來計算的，例如這裡的480x320，解析度改變後會自動計算改變後對於的座標。

鍵盤對應的觸摸事件如所示：

另外，向右+向上=右上方，類似的可以讓角色進行對角的行走。