贪吃蛇游戏MFC开发过程

#include<windows.h> #include <time.h> #include"snaker.h" #include"table.h" //游戏状态定义 #define GAME_STATE_WAIT 0 //游戏等待状态 #define GAME_STATE_RUN 1 //游戏运行状态 #define GAME_STATE_END 2 //游戏结束状态 //界面相关物件尺寸定义 #define WALL_WIDTH 80 //外墙从左部到游戏区的宽度 #define WALL_HEIGHT 80 //外墙从顶部到游戏区的高度 #define BMP_SCORE_BOARD_WIDTH 256 //分数位图板的宽度 #define BMP_SCORE_BOARD_HEIGHT 55 //分数位图板的高度 #define BMP_WALL_WIDTH 16 //墙位图的宽度 #define BMP_WALL_HEIGHT 16 //墙位图的高度 LRESULT CALLBACK WndProc(HWND hWnd,UINT message, WPARAM wParam,LPARAM lParam); void DrawGame(void); void ShellDraw( HDC hdc ); void GameAreaDraw(HDC hdc); void OnTimer(UINT uTIMER_ID); void StartGame( void ); void EndGame( void ); //创建一个桌子 CTable table; int tableBlockWidth = 0; //桌子的格子的宽度 int tableBlockHeight = 0; //桌子的格子的高度 int iScores = 0; //游戏的得分 UINT uGameState = GAME_STATE_WAIT; //当前游戏状态 HDC windowDC = NULL; //windows屏幕设备 HDC bufferDC = NULL; //缓冲设备环境 HDC picDC = NULL; //snake图像内存设备 HDC endDC = NULL; //游戏终结图像内存设备 HDC scoreDC = NULL; //分数板内存设备 HWND hAppWnd = NULL; //本application窗口句柄 HBITMAP picBMP = NULL; //snake图像位图句柄 HBITMAP bufferBMP = NULL; //缓冲位图句柄 HBITMAP endBMP = NULL; //游戏终结图像内存句柄 HBITMAP hbmpWall = NULL; //墙位图句柄 HBITMAP hbmpScore = NULL; //分数板位图句柄 HBRUSH hbrushWall = NULL; //墙画刷 //定时器标识 UINT uSnakeMoveTimer; //蛇的移动 UINT uFoodAddTimer; //水果的产生 //框架的位置数据定义 //GDI RECT 而不是 MFC CRect RECT g_ClientRect; RECT g_GameValueRect; int g_iClientWidth; int g_iClientHeight; int WINAPI WinMain(HINSTANCE hCurrentInst,HINSTANCE hPrevInstance, PSTR lpszCmdLine,int nCmdShow) { WNDCLASS wndClass; HWND hWnd; MSG msg; UINT width,height; //定义窗口 wndClass.style=CS_HREDRAW | CS_VREDRAW; wndClass.lpfnWndProc=WndProc; wndClass.cbClsExtra=0; wndClass.cbWndExtra=0; wndClass.hInstance=hCurrentInst; wndClass.hIcon=LoadIcon(NULL,MAKEINTRESOURCE(IDI_MAIN)); wndClass.hCursor=LoadCursor(NULL,IDC_ARROW); wndClass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH); wndClass.lpszMenuName=NULL; wndClass.lpszClassName="Snake_CLASS"; //注册窗口 RegisterClass(&wndClass); //取整个屏幕的尺寸 width=GetSystemMetrics(SM_CXSCREEN); height= GetSystemMetrics(SM_CYSCREEN); //创建窗口 hWnd=CreateWindow( "Snake_CLASS", "skyblue snake", WS_POPUP, 0,0, width,height, NULL,NULL, hCurrentInst, NULL); hAppWnd = hWnd; //显示窗口 ShowWindow(hWnd,nCmdShow); UpdateWindow(hWnd); //获取窗体大小 GetClientRect(hAppWnd, &g_ClientRect); g_iClientWidth = g_ClientRect.right-g_ClientRect.left; g_iClientHeight = g_ClientRect.bottom-g_ClientRect.top; //将游戏区域分成纵，横均为20块的小方块 //并计算每块区域的大小 tableBlockWidth = (g_iClientWidth-2*WALL_WIDTH)/20; tableBlockHeight = (g_iClientHeight-2*WALL_HEIGHT)/20; //获取当前主窗口设备与windowDC关联 windowDC=GetDC(NULL); //创建与windowDC兼容的内存设备环境 bufferDC=CreateCompatibleDC(windowDC); picDC=CreateCompatibleDC(windowDC); endDC=CreateCompatibleDC(windowDC); scoreDC=CreateCompatibleDC(windowDC); //位图的初始化或载入位图 bufferBMP=CreateCompatibleBitmap(windowDC,g_iClientWidth,g_iClientHeight); picBMP=(HBITMAP)LoadImage(NULL,"snake.bmp",IMAGE_BITMAP,160,80,LR_LOADFROMFILE); hbmpWall=(HBITMAP)LoadImage(NULL,"brick.bmp",IMAGE_BITMAP,16,16,LR_LOADFROMFILE); endBMP = (HBITMAP)LoadImage(NULL,"end.bmp",IMAGE_BITMAP,369,300,LR_LOADFROMFILE); hbmpScore=(HBITMAP)LoadImage(NULL,"scoreboard.bmp",IMAGE_BITMAP,265,55,LR_LOADFROMFILE); //声明位图与设备环境的关联 SelectObject(bufferDC,bufferBMP); SelectObject(picDC,picBMP); SelectObject(endDC,endBMP); SelectObject(scoreDC,hbmpScore); //建立画刷与其名相对应的图像的关联， //以备用刷子将墙刷出来，用PatBlt()实现 hbrushWall = CreatePatternBrush(hbmpWall); StartGame(); while(GetMessage(&msg,NULL,0,0)) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } LRESULT CALLBACK WndProc(HWND hWnd,UINT message, WPARAM wParam,LPARAM lParam) { switch(message) { case WM_TIMER : OnTimer((UINT)wParam); break; case WM_KEYDOWN: switch(wParam) { case VK_ESCAPE: exit(0); break; case VK_UP: table.ChangeSnakeDirect(S_UP); break; case VK_DOWN: table.ChangeSnakeDirect(S_DOWN); break; case VK_LEFT: table.ChangeSnakeDirect(S_LEFT); break; case VK_RIGHT: table.ChangeSnakeDirect(S_RIGHT); break; case VK_SPACE: if( uGameState == GAME_STATE_END ) { StartGame(); break; } } return 0; case WM_SETCURSOR: SetCursor(NULL); return 0; case WM_DESTROY: ReleaseDC(hWnd,picDC); ReleaseDC(hWnd,bufferDC); ReleaseDC(hWnd,windowDC); PostQuitMessage(0); return 0; } return DefWindowProc(hWnd,message,wParam,lParam); } void DrawGame(void) { //绘制外壳区域到缓冲 ShellDraw(bufferDC); //绘制游戏区域到缓冲 GameAreaDraw(bufferDC); //将整个画面从缓冲DC拷贝出屏幕 BitBlt(windowDC,0,0,g_iClientWidth,g_iClientHeight,bufferDC,0,0,SRCCOPY); } void OnTimer(UINT uTIMER_ID) { if ( uTIMER_ID == uSnakeMoveTimer ) { //移动蛇 table.SnakeMove(); //检测是否碰到身体(环绕)，结束游戏 if(table.GetSnake()->IsHeadTouchBody(table.GetSnake()->GetPos()[0].x,table.GetSnake()->GetPos()[0].y)) { EndGame(); } //根据蛇头所在的区域作出相应的处理 switch(table.GetData(table.GetSnake()->GetPos()[0].x,table.GetSnake()->GetPos()[0].y)) { case TB_STATE_FOOD: table.ClearFood(table.GetSnake()->GetPos()[0].x,table.GetSnake()->GetPos()[0].y); table.AddBlock((rand())%tableBlockWidth,(rand())%tableBlockHeight); table.GetSnake()->AddBody(); ++iScores; break; case TB_STATE_BLOCK: case TB_STATE_SBLOCK: //检测是否碰到障碍物，结束游戏 EndGame(); break; } //显示 DrawGame(); } else if ( uTIMER_ID == uFoodAddTimer ) {//定时加食物 table.AddFood((rand())%tableBlockWidth,(rand())%tableBlockHeight); } } void StartGame() { iScores=0; //桌面的初始化 table.InitialTable(tableBlockWidth,tableBlockHeight); table.GetSnake()->ChangeDirect(S_RIGHT); table.GetSnake()->SetHeadPos(tableBlockWidth/2,tableBlockHeight/2); //预先随机产生几个食物 srand( (unsigned)time(NULL) ); for(int iFoodNum=0; iFoodNum<4; iFoodNum++) { table.AddFood((rand())%tableBlockWidth,(rand())%tableBlockHeight); } //不部下种子也可以直接用rand(), //但是每次游戏开始都是产生完全一样的伪随即序列 //打开定时器 uSnakeMoveTimer = SetTimer(hAppWnd,500,100,NULL); uFoodAddTimer = SetTimer(hAppWnd,600,7000,NULL); uGameState = GAME_STATE_RUN; } void EndGame( void ) { //关闭定时器 KillTimer(hAppWnd,uSnakeMoveTimer); KillTimer(hAppWnd,uFoodAddTimer); uGameState = GAME_STATE_END; } void ShellDraw( HDC hdc ) { // HDC hMemDc; // BOOL ret = TRUE; // HDC hMemoryDC; // HBITMAP hbmp; //分数提示显示文字 char szText[30] = "Score: "; char szNum[20]; int iNowScore = iScores*100; itoa(iNowScore,szNum,10); strcat(szText, szNum); RECT rt, rect; GetClientRect(hAppWnd, &rt); //墙的绘制 SelectObject(hdc,hbrushWall); PatBlt(hdc,rt.left,rt.top,rt.right,rt.bottom,PATCOPY); //内部游戏区的白色底平面 rect.left = rt.left+WALL_WIDTH; rect.top = rt.top + WALL_HEIGHT; rect.right = rt.right - WALL_WIDTH; rect.bottom = rt.bottom - WALL_HEIGHT; FillRect(hdc, &rect, (HBRUSH) (COLOR_WINDOW+1)); //分数提示板的绘制 /* hMemoryDC = CreateCompatibleDC(NULL); hbmp = CreateCompatibleBitmap(hdc,265,55); SelectObject