g01.htm

一本介绍如何开发游戏,如何进行游戏编程的非常值得一看的好书.

            <p>int paddle_x = 0, paddle_y = 0; // tracks position of paddle<br>
              int ball_x = 0, ball_y = 0; // tracks position of ball<br>
              int ball_dx = 0, ball_dy = 0; // velocity of ball<br>
              int score = 0; // the score<br>
              int level = 1; // the current level<br>
              int blocks_hit = 0; // tracks number of blocks hit</p>
            <p>// this contains the game grid data </p>
            <p>UCHAR blocks[NUM_BLOCK_ROWS][NUM_BLOCK_COLUMNS]; </p>
            <p>// FUNCTIONS //////////////////////////////////////////////////</p>
            <p>LRESULT CALLBACK WindowProc(HWND hwnd, <br>
              UINT msg, <br>
              WPARAM wparam, <br>
              LPARAM lparam)<br>
              {<br>
              // this is the main message handler of the system<br>
              PAINTSTRUCT ps; // used in WM_PAINT<br>
              HDC hdc; // handle to a device context</p>
            <p>// what is the message <br>
              switch(msg)<br>
              { <br>
              case WM_CREATE: <br>
              {<br>
              // do initialization stuff here<br>
              return(0);<br>
              } break;</p>
            <p> case WM_PAINT:<br>
              {<br>
              // start painting<br>
              hdc = BeginPaint(hwnd,&amp;ps);</p>
            <p> // the window is now validated </p>
            <p> // end painting<br>
              EndPaint(hwnd,&amp;ps);<br>
              return(0);<br>
              } break;</p>
            <p> case WM_DESTROY: <br>
              {<br>
              // kill the application <br>
              PostQuitMessage(0);<br>
              return(0);<br>
              } break;</p>
            <p> default:break;</p>
            <p> } // end switch</p>
            <p>// process any messages that we didn't take care of <br>
              return (DefWindowProc(hwnd, msg, wparam, lparam));</p>
            <p>} // end WinProc</p>
            <p>// WINMAIN ////////////////////////////////////////////////////</p>
            <p>int WINAPI WinMain( HINSTANCE hinstance,<br>
              HINSTANCE hprevinstance,<br>
              LPSTR lpcmdline,<br>
              int ncmdshow)<br>
              {<br>
              // this is the winmain function</p>
            <p>WNDCLASS winclass; // this will hold the class we create<br>
              HWND hwnd; // generic window handle<br>
              MSG msg; // generic message<br>
              HDC hdc; // generic dc<br>
              PAINTSTRUCT ps; // generic paintstruct</p>
            <p>// first fill in the window class stucture<br>
              winclass.style = CS_DBLCLKS | CS_OWNDC | <br>
              CS_HREDRAW | CS_VREDRAW;<br>
              winclass.lpfnWndProc = WindowProc;<br>
              winclass.cbClsExtra = 0;<br>
              winclass.cbWndExtra = 0;<br>
              winclass.hInstance = hinstance;<br>
              winclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);<br>
              winclass.hCursor = LoadCursor(NULL, IDC_ARROW);<br>
              winclass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);<br>
              winclass.lpszMenuName = NULL; <br>
              winclass.lpszClassName = WINDOW_CLASS_NAME;</p>
            <p>// register the window class<br>
              if (!RegisterClass(&amp;winclass))<br>
              return(0);</p>
            <p>// create the window, note the use of WS_POPUP<br>
              if (!(hwnd = CreateWindow(WINDOW_CLASS_NAME, // class<br>
              &quot;WIN3D Game Console&quot;, // title<br>
              WS_POPUP | WS_VISIBLE,<br>
              0,0, // initial x,y<br>
              GetSystemMetrics(SM_CXSCREEN), // intial width<br>
              GetSystemMetrics(SM_CYSCREEN), // initial height<br>
              NULL, // handle to parent <br>
              NULL, // handle to menu<br>
              hinstance,// instance<br>
              NULL))) // creation parms<br>
              return(0);</p>
            <p>// hide mouse<br>
              ShowCursor(FALSE);</p>
            <p>// save the window handle and instance in a global<br>
              main_window_handle = hwnd;<br>
              main_instance = hinstance;</p>
            <p>// perform all game console specific initialization<br>
              Game_Init();</p>
            <p>// enter main event loop<br>
              while(1)<br>
              {<br>
              if (PeekMessage(&amp;msg,NULL,0,0,PM_REMOVE))<br>
              { <br>
              // test if this is a quit<br>
              if (msg.message == WM_QUIT)<br>
              break;<br>
              <br>
              // translate any accelerator keys<br>
              TranslateMessage(&amp;msg);</p>
            <p> // send the message to the window proc<br>
              DispatchMessage(&amp;msg);<br>
              } // end if<br>
              <br>
              // main game processing goes here<br>
              Game_Main();</p>
            <p> } // end while</p>
            <p>// shutdown game and release all resources<br>
              Game_Shutdown();</p>
            <p>// show mouse<br>
              ShowCursor(TRUE);</p>
            <p>// return to Windows like this<br>
              return(msg.wParam);</p>
            <p>} // end WinMain</p>
            <p>// T3DX GAME PROGRAMMING CONSOLE FUNCTIONS ////////////////////</p>
            <p>int Game_Init(void *parms)<br>
              {<br>
              // this function is where you do all the initialization <br>
              // for your game</p>
            <p><br>
              // return success<br>
              return(1);</p>
            <p>} // end Game_Init</p>
            <p>///////////////////////////////////////////////////////////////</p>
            <p>int Game_Shutdown(void *parms)<br>
              {<br>
              // this function is where you shutdown your game and<br>
              // release all resources that you allocated</p>
            <p><br>
              // return success<br>
              return(1);</p>
            <p>} // end Game_Shutdown</p>
            <p>///////////////////////////////////////////////////////////////</p>
            <p>void Init_Blocks(void)<br>
              {<br>
              // initialize the block field<br>
              for (int row=0; row &lt; NUM_BLOCK_ROWS; row++)<br>
              for (int col=0; col &lt; NUM_BLOCK_COLUMNS; col++)<br>
              blocks[row][col] = row*16+col*3+16;</p>
            <p>} // end Init_Blocks</p>
            <p>///////////////////////////////////////////////////////////////</p>
            <p>void Draw_Blocks(void)<br>
              {<br>
              // this function draws all the blocks in row major form<br>
              int x1 = BLOCK_ORIGIN_X, // used to track current position<br>
              y1 = BLOCK_ORIGIN_Y; </p>
            <p>// draw all the blocks<br>
              for (int row=0; row &lt; NUM_BLOCK_ROWS; row++)<br>
              { <br>
              // reset column position<br>
              x1 = BLOCK_ORIGIN_X;</p>
            <p> // draw this row of blocks<br>
              for (int col=0; col &lt; NUM_BLOCK_COLUMNS; col++)<br>