编程珠玑2阅读笔记：

在来说这个俄罗斯方块，其实主要是2个大的部分：

1.界面绘制（游戏区，信息区，刷新重绘工作）

游戏区方块的绘制，其实都是数组来记录

2.游戏逻辑（上下左右，变形）

其实就是对数组的旋转

主要代码，才六百行：

// Russian_cube.cpp : 定义应用程序的入口点。////////#include "stdafx.h"#include "Russian_cube.h"#define MAX_LOADSTRING 100//Tetris#define BOUND_SIZE 10#define TETRIS_SIZE 30#define GAME_X 10#define GAME_Y 20#define INFO_X 6#define INFO_Y GAME_Y//定时器#define  MY_TIMEER 1#define  DEFAULT_INTERVAL 500 //默认每0.5秒下降一格//定义俄罗斯方块的形状BOOL g_astTetris[][4][4] = {	{
   {1,1,0,1},{0,0,0,0},{0,0,0,0},{0,0,0,0}},	{
   {1,1,0,0},{0,0,1,1},{0,0,0,0},{0,0,0,0}},	{
   {1,1,0,0},{1,1,0,0},{0,0,0,0},{0,0,0,0}},	{
   {0,1,1,0},{1,1,0,0},{0,0,0,0},{0,0,0,0}},	{
   {0,1,0,0},{1,1,1,0},{0,0,0,0},{0,0,0,0}},	{
   {1,1,1,1},{0,0,0,0},{0,0,0,0},{0,0,0,0}}};#define  TETRIS_CNT (sizeof(g_astTetris)/sizeof(g_astTetris[0]))//当前方块的形状BOOL g_CurTetris[4][4];BOOL g_NextTetris[4][4];BOOL g_stGame[GAME_X][GAME_Y];//记录已经落下来的方块//记录方块左上角的坐标UINT TetrisX;UINT TetrixY;UINT g_uiInterval;UINT g_uiScore;UINT g_uiMySeed = 0xffff;// 全局变量:HINSTANCE hInst;								// 当前实例TCHAR szTitle[MAX_LOADSTRING];					// 标题栏文本TCHAR szWindowClass[MAX_LOADSTRING];			// 主窗口类名// 此代码模块中包含的函数的前向声明:ATOM				MyRegisterClass(HINSTANCE hInstance);BOOL				InitInstance(HINSTANCE, int);LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);INT_PTR CALLBACK	About(HWND, UINT, WPARAM, LPARAM);int APIENTRY _tWinMain(HINSTANCE hInstance,                     HINSTANCE hPrevInstance,                     LPTSTR    lpCmdLine,                     int       nCmdShow){	UNREFERENCED_PARAMETER(hPrevInstance);	UNREFERENCED_PARAMETER(lpCmdLine); 	// TODO: 在此放置代码。	MSG msg;	HACCEL hAccelTable;	// 初始化全局字符串	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);	LoadString(hInstance, IDC_RUSSIAN_CUBE, szWindowClass, MAX_LOADSTRING);	MyRegisterClass(hInstance);	// 执行应用程序初始化:	if (!InitInstance (hInstance, nCmdShow))	{		return FALSE;	}	hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_RUSSIAN_CUBE));	// 主消息循环:	while (GetMessage(&msg, NULL, 0, 0))	{		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))		{			TranslateMessage(&msg);			DispatchMessage(&msg);		}	}	return (int) msg.wParam;}////  函数: MyRegisterClass()////  目的: 注册窗口类。////  注释:////    仅当希望//    此代码与添加到 Windows 95 中的“RegisterClassEx”//    函数之前的 Win32 系统兼容时，才需要此函数及其用法。调用此函数十分重要，//    这样应用程序就可以获得关联的//    “格式正确的”小图标。//ATOM MyRegisterClass(HINSTANCE hInstance){	WNDCLASSEX wcex;	wcex.cbSize = sizeof(WNDCLASSEX);	wcex.style			= CS_HREDRAW | CS_VREDRAW;	wcex.lpfnWndProc	= WndProc;	wcex.cbClsExtra		= 0;	wcex.cbWndExtra		= 0;	wcex.hInstance		= hInstance;	wcex.hIcon			= LoadIcon(hInstance, MAKEINTRESOURCE(IDI_RUSSIAN_CUBE));	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1);	wcex.lpszMenuName	= MAKEINTRESOURCE(IDC_RUSSIAN_CUBE);	wcex.lpszClassName	= szWindowClass;	wcex.hIconSm		= LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));	return RegisterClassEx(&wcex);}////   函数: InitInstance(HINSTANCE, int)////   目的: 保存实例句柄并创建主窗口////   注释:////        在此函数中，我们在全局变量中保存实例句柄并//        创建和显示主程序窗口。//BOOL InitInstance(HINSTANCE hInstance, int nCmdShow){   HWND hWnd;   hInst = hInstance; // 将实例句柄存储在全局变量中   hWnd = CreateWindow(szWindowClass, szTitle,  WS_MINIMIZEBOX | WS_SYSMENU,      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);   if (!hWnd)   {      return FALSE;   }   ShowWindow(hWnd, nCmdShow);   UpdateWindow(hWnd);   return TRUE;}int GetRandNum(int iMin,int iMax){	//取随机数	srand(GetTickCount() + g_uiMySeed-- );	return iMin + rand()%(iMax -iMin);}VOID DrawBackGround(HDC hdc){	int x, y;	HPEN hPen = (HPEN)GetStockObject(NULL_PEN);	HBRUSH hBrush = (HBRUSH)GetStockObject(GRAY_BRUSH);    //(HBRUSH)CreateSolidBrush()		HBRUSH hBrush_luo = (HBRUSH)GetStockObject(BLACK_BRUSH);	Rectangle(hdc,BOUND_SIZE,BOUND_SIZE,BOUND_SIZE + GAME_X*TETRIS_SIZE		,BOUND_SIZE + GAME_Y * TETRIS_SIZE);	SelectObject(hdc,hPen);		for (x = 0; x < GAME_X; x++)	{		for (y = 0 ;y < GAME_Y; y++)		{			if (g_stGame[x][y])			{				SelectObject(hdc,hBrush_luo);			}			else			{								SelectObject(hdc,hBrush);			}			Rectangle(hdc,BOUND_SIZE + x*TETRIS_SIZE,				BOUND_SIZE + y * TETRIS_SIZE,				BOUND_SIZE + (x + 1)*TETRIS_SIZE,				BOUND_SIZE + (y + 1) * TETRIS_SIZE);		}	}}//信息区 的绘制VOID DrawInfo(HDC hdc){	int x,y;	int nStartX,nStartY;	RECT rect;	TCHAR szBuf[100];//得分的字符串	HPEN hPen = (HPEN)GetStockObject(BLACK_PEN);	HBRUSH hBrush = (HBRUSH)GetStockObject(NULL_BRUSH);	HBRUSH hBrush_have = (HBRUSH)GetStockObject(GRAY_BRUSH);	SelectObject(hdc,hPen);	SelectObject(hdc,hBrush);	Rectangle(hdc,BOUND_SIZE*2 + GAME_X * TETRIS_SIZE,		BOUND_SIZE,BOUND_SIZE *2 + (GAME_X + INFO_X)*TETRIS_SIZE,		BOUND_SIZE + INFO_Y * TETRIS_SIZE);	for (x = 0; x < 4; x++)	{		for (y = 0 ;y < 4 ;y++)		{			nStartX = BOUND_SIZE *2 + GAME_X*TETRIS_SIZE + (y +1)*TETRIS_SIZE;			nStartY = BOUND_SIZE + (x +1)*TETRIS_SIZE;			if (g_NextTetris[x][y])			{				SelectObject(hdc,hBrush);			}			else			{				SelectObject(hdc,hBrush_have);			}			Rectangle(hdc,nStartX,nStartY,nStartX+TETRIS_SIZE,nStartY+TETRIS_SIZE);		}	}	nStartX = BOUND_SIZE *2 + GAME_X*TETRIS_SIZE;	nStartY = BOUND_SIZE ;	rect.left = nStartX + TETRIS_SIZE;	rect.right = nStartX + TETRIS_SIZE * (INFO_X -1);	rect.top = nStartY + TETRIS_SIZE *6;	rect.bottom = nStartY + TETRIS_SIZE *7;	wsprintf(szBuf,L"Score: %d",g_uiScore = 0);	 DrawText(hdc,szBuf,wcslen(szBuf),&rect,DT_CENTER);}//绘制区方块，起始坐标和需要绘制的方块形状VOID DrawTetris(HDC hdc, int nStartX,int nStartY,BOOL bTetris[4][4]){	int i,j;	HPEN hPen = (HPEN)GetStockObject(BLACK_PEN);	HBRUSH hBrush = (HBRUSH)GetStockObject(WHITE_BRUSH);	SelectObject(hdc,hPen);	SelectObject(hdc,hBrush);	for (i = 0;i < 4; i++)	{		for (j = 0;j < 4;j++)		{			//j 是x方向的坐标偏移			if (bTetris[i][j])			{				Rectangle(hdc,BOUND_SIZE +(nStartX + j) * TETRIS_SIZE,					BOUND_SIZE + (nStartY + i)* TETRIS_SIZE,					BOUND_SIZE +(nStartX + j + 1) * TETRIS_SIZE,					BOUND_SIZE + (nStartY + i + 1)* TETRIS_SIZE);			}		}	}}//旋转方块, 并且靠左上角VOID RotateTetris(BOOL bTetris[4][4]){	BOOL bNewTetris[4][4] = {};//初始化置零	int x, y;	int xPos,yPos;	BOOL bFlag;//靠近左上角	//从上往下，从左往右，顺时针旋转	//靠上	for (x = 0,xPos = 0 ;x < 4 ; x++)	{		bFlag = FALSE;		for (y = 0 ;y < 4 ;y++)		{			bNewTetris[xPos][y] = bTetris[3 - y][x];			//逆时针旋转			//bNewTetris[x][y] = bTetris[y][3 - x];			if (bNewTetris[xPos][y])			{				bFlag = TRUE;//这一行有数据			}		}		if (bFlag)		{			xPos++;		}	}	memset(bTetris,0,sizeof(bNewTetris));	//靠左	for (y = 0, yPos = 0;y < 4 ;y++)	{		bFlag = FALSE;		for (x = 0;x < 4; x++)		{			bTetris[x][yPos] = bNewTetris[x][y];			if (bTetris[x][yPos])			{				bFlag = TRUE;			}		}		if (bFlag)		{			yPos++;		}	}	//memcpy(bTetris,bNewTetris,sizeof(bNewTetris));	return;}BOOL CheckTetris(int nStartX,int nStartY,BOOL bTetris[4][4],BOOL bGame[GAME_X][GAME_Y]){	int x,y;	if (nStartX < 0)	{//碰到左墙		return FALSE;	}	for (x = 0;x < 4;x++)	{		for (y = 0;y < 4;y++)		{			if (bTetris[x][y])			{				//碰右墙				if (nStartX +y >=GAME_X)				{					return FALSE;				}				//碰下墙				if (nStartY + x >=GAME_Y)				{					return FALSE;				}				//碰到已有的方块				if (bGame[nStartX +y][nStartY + x])				{					return FALSE;				}			}		}	}	return TRUE;}//落地的方块合并，并且满足消除一行VOID RefreshTetris(int nStartX,int nStartY,BOOL bTetris[4][4], BOOL bGame[GAME_X][GAME_Y]){	BOOL bFlag = FALSE;	int x,y;	int newX,newY;//主要用来记录	int iFulllie = 0; //校区满行的格子记录行数，用于积分	for (x = 0; x < 4;x ++)	{		for (y = 0 ;y < 4; y++)		{			if (bTetris[x][y])			{				bGame[nStartX + y][nStartY +x] = TRUE;			}		}	}	for (y = GAME_Y,newY = GAME_Y; y >= 0; y--)	{		bFlag= FALSE;		for (x = 0;x < GAME_X;x++)		{			bGame[x][newY] = bGame[x][y];			if (!bGame[x][y])//这一行不满格			{				bFlag = TRUE;			}		}		if (bFlag)		{			newY--;		}		else		{			//满格的话，用上一行替换这一行			iFulllie++;		}	}	if (iFulllie)	{		g_uiScore -= iFulllie *1;	}	//合并以后生成新的方块，并刷新位置	memcpy(g_CurTetris,g_NextTetris,sizeof(g_CurTetris));	memcpy(g_NextTetris,g_astTetris[ GetRandNum(0,TETRIS_CNT)],sizeof(g_NextTetris));	TetrisX = (GAME_X - 4)/2;	TetrixY = 0;}//初始化游戏,就是方块最先初始化的位置VOID InitGame(){	int iTmp;	TetrisX = (GAME_X - 4 )/2 ; //居中	TetrixY = 0;	g_uiScore = 0;	g_uiInterval = DEFAULT_INTERVAL;	iTmp = GetRandNum(0,TETRIS_CNT);	memcpy(g_CurTetris,g_astTetris[iTmp],sizeof(g_CurTetris));	iTmp = GetRandNum(0,TETRIS_CNT);	memcpy(g_NextTetris,g_astTetris[iTmp],sizeof(g_NextTetris));	memset(g_stGame,0,sizeof(g_stGame));}////  函数: WndProc(HWND, UINT, WPARAM, LPARAM)////  目的: 处理主窗口的消息。////  WM_COMMAND	- 处理应用程序菜单//  WM_PAINT	- 绘制主窗口//  WM_DESTROY	- 发送退出消息并返回////LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam){	int wmId, wmEvent;	PAINTSTRUCT ps;	HDC hdc;	int nWinX,nWinY,nClientX,nClientY;	RECT rect;	BOOL bTmpTetris[4][4] = {};	switch (message)	{	case WM_CREATE:		//获取窗口大小		GetWindowRect(hWnd,&rect);		nWinX = rect.right - rect.left;		nWinY = rect.bottom - rect.top;		//获取客户区大小		GetClientRect(hWnd,&rect);		nClientX = rect.right - rect.left;		nClientY = rect.bottom - rect.top;		MoveWindow(hWnd,0,0,3 * BOUND_SIZE + (GAME_X + INFO_X)* TETRIS_SIZE +			(nWinX  - nClientX),			2 * BOUND_SIZE + GAME_Y*TETRIS_SIZE + (nWinY - nClientY),true);		InitGame();		SetTimer(hWnd,MY_TIMEER,g_uiInterval,NULL);		break;	case WM_TIMER:		//定时器中方块下降		if (CheckTetris(TetrisX,TetrixY + 1,g_CurTetris,g_stGame))		{			TetrixY++;		}		else		{			if (TetrixY == 0)			{				MessageBox(NULL,L"不行了",L"shit!",MB_OK);				KillTimer(hWnd,MY_TIMEER);			}			RefreshTetris(TetrisX,TetrixY,g_CurTetris,g_stGame);		}		InvalidateRect(hWnd,NULL,TRUE);		break;	case WM_LBUTTONDOWN:		RotateTetris(g_CurTetris);		InvalidateRect(hWnd,NULL,TRUE);		break;	case WM_KEYDOWN:		switch(wParam)		{		case VK_LEFT://左方向键			if (CheckTetris(TetrisX -1,TetrixY,g_CurTetris,g_stGame))			{//判断一下当前方块没有靠墙就				TetrisX--;				InvalidateRect(hWnd,NULL,TRUE);			}			else			{				MessageBeep(0);			}			break;		case  VK_RIGHT:			if (CheckTetris(TetrisX +1,TetrixY,g_CurTetris,g_stGame))			{//判断一下当前方块没有靠墙就				TetrisX++;				InvalidateRect(hWnd,NULL,TRUE);			}			else			{				MessageBeep(0);			}			break;		case VK_UP://变形，但是要判断变形成功或者失败			memcpy(bTmpTetris,g_CurTetris,sizeof(bTmpTetris));			RotateTetris((bTmpTetris));			if (CheckTetris(TetrisX,TetrixY,bTmpTetris,g_stGame))			{				//成功后，再把旋转后的copy回来				memcpy(g_CurTetris,bTmpTetris,sizeof(bTmpTetris));				InvalidateRect(hWnd,NULL,TRUE);			}			break;		case VK_DOWN:			while (CheckTetris(TetrisX,TetrixY + 1,g_CurTetris,g_stGame))			{				TetrixY++;							}			RefreshTetris(TetrisX,TetrixY,g_CurTetris,g_stGame);			InvalidateRect(hWnd,NULL,TRUE);			break;		default:			break;		}				break;	case WM_COMMAND:		wmId    = LOWORD(wParam);		wmEvent = HIWORD(wParam);		// 分析菜单选择:		switch (wmId)		{		case IDM_ABOUT:			DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);			break;		case IDM_EXIT:			DestroyWindow(hWnd);			break;		default:			return DefWindowProc(hWnd, message, wParam, lParam);		}		break;	case WM_PAINT:		hdc = BeginPaint(hWnd, &ps);		// TODO: 在此添加任意绘图代码...		DrawBackGround(hdc);		DrawInfo(hdc);		DrawTetris(hdc,TetrisX,TetrixY,g_CurTetris);		EndPaint(hWnd, &ps);		break;	case WM_DESTROY:		KillTimer(hWnd,MY_TIMEER);		PostQuitMessage(0);		break;	default:		return DefWindowProc(hWnd, message, wParam, lParam);	}	return 0;}// “关于”框的消息处理程序。INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam){	UNREFERENCED_PARAMETER(lParam);	switch (message)	{	case WM_INITDIALOG:		return (INT_PTR)TRUE;	case WM_COMMAND:		if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)		{			EndDialog(hDlg, LOWORD(wParam));			return (INT_PTR)TRUE;		}		break;	}	return (INT_PTR)FALSE;}

代码参考：

主要是听了这个课程，这个公开课做点小项目，贪吃蛇，网络啊什么的，都是代码挺好的，作为一个熟悉其他领域的小项目非常适合上手：

windows下的win32编程要学的东西还比较多，下面给出一个简单的知识点：