VC俄罗斯方块

　　用VC撸了一个俄罗斯方块， 实在是内流满面啊， 我屮艸芔茻， 纠结代码：

运行下面代码

// Blocks.cpp : 定义应用程序的入口点。

#include "stdafx.h"
#include "Blocks.h"
#include "stdio.h"
#include "time.h"
#include<stdlib.h>

#define MAX_LOADSTRING 100
#define BOUND_SIZE 10
#define TETRIS_SIZE 30
#define GAME_X 10
#define GAME_Y 20

//游戏中方块的类型
int Tetris[][4][4] = {
    {
        { 0,0,0,0 },
        { 1,1,1,1 },
        { 0,0,0,0 },
        { 0,0,0,0 }
    },
    {
        { 1,1,0,0 },
        { 1,1,0,0 },
        { 0,0,0,0 },
        { 0,0,0,0 }
    },
    {
        { 1,1,0,0 },
        { 0,1,1,0 },
        { 0,0,0,0 },
        { 0,0,0,0 }
    },
    {
        { 0,1,1,0 },
        { 1,1,0,0 },
        { 0,0,0,0 },
        { 0,0,0,0 }
    },
    {
        { 1,0,0,0 },
        { 1,1,1,0 },
        { 0,0,0,0 },
        { 0,0,0,0 }
    }
};
//方块的个数
int TetrisCount = sizeof(Tetris) / sizeof(Tetris[0]);
int currentTetris[4][4] = {
    { 0,0,0,0 },
    { 1,1,1,1 },
    { 0,0,0,0 },
    { 0,0,0,0 }
};
int tempTetris[4][4];
//游戏面板.保存临时数据
int game_board[GAME_X][GAME_Y];
//游戏初始化的变量, X和Y为当前的方块的几何轴， timer为定时器变量;
int X = 3, Y = 0, timer = 0;

//随机生成方块
VOID generateTetris(int TETData[4][4]);
//返回1的话就是碰到，返回0就是没有碰到;
int CheckTetris(int x, int y, int TETData[4][4], int gb[GAME_X][GAME_Y]);
//合并背景方块和消方块
VOID RefreshTetris(int x, int y, int TETData[4][4], int gb[GAME_X][GAME_Y]);
//旋转方块
VOID rotateTetris(int tet[4][4]);
//绘制方块
VOID DrawTetris(HDC hdc, int x, int y, int tet[4][4]);
//绘制背景
VOID DrawBackGround(HDC hdc);

// 全局变量: 
HINSTANCE hInst;                                // 当前实例
WCHAR szTitle[MAX_LOADSTRING];                  // 标题栏文本
WCHAR 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 wWinMain(_In_ HINSTANCE hInstance,
                     _In_opt_ HINSTANCE hPrevInstance,
                     _In_ LPWSTR    lpCmdLine,
                     _In_ int       nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);

    // TODO: 在此放置代码。

    // 初始化全局字符串
    LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
    LoadStringW(hInstance, IDC_BLOCKS, szWindowClass, MAX_LOADSTRING);
    MyRegisterClass(hInstance);

    // 执行应用程序初始化: 
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_BLOCKS));

    MSG msg;

    // 主消息循环: 
    while (GetMessage(&msg, nullptr, 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。
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEXW 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_BLOCKS));
    wcex.hCursor        = LoadCursor(nullptr, IDC_ARROW);
    wcex.hbrBackground  = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName   = MAKEINTRESOURCEW(IDC_BLOCKS);
    wcex.lpszClassName  = szWindowClass;
    wcex.hIconSm        = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

    return RegisterClassExW(&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)
{
   hInst = hInstance; // 将实例句柄存储在全局变量中

   HWND hWnd = CreateWindowW(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, nullptr, nullptr, hInstance, nullptr);

   if (!hWnd)
   {
      return FALSE;
   }

   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);

   return TRUE;
}

//绘制背景
VOID DrawBackGround(HDC hdc) {
    int x, y;
    HPEN hPen = (HPEN)GetStockObject(NULL_PEN);
    HBRUSH hBrush = (HBRUSH)GetStockObject(GRAY_BRUSH);
    HPEN hPen1 = (HPEN)GetStockObject(NULL_PEN);
    HBRUSH hBrush1 = (HBRUSH)GetStockObject(BLACK_BRUSH);
    Rectangle(hdc, BOUND_SIZE, BOUND_SIZE, BOUND_SIZE+ TETRIS_SIZE*GAME_X, BOUND_SIZE+TETRIS_SIZE*GAME_Y);
    for (x = 0; x < GAME_X; x++) {
        for (y = 0; y < GAME_Y; y++) {
            if (game_board[x][y] == 1) {
                SelectObject(hdc, hBrush1);
                Rectangle(hdc,
                    BOUND_SIZE + x*TETRIS_SIZE,
                    BOUND_SIZE + y*TETRIS_SIZE,
                    BOUND_SIZE + (x + 1)*TETRIS_SIZE,
                    BOUND_SIZE + (y + 1)*TETRIS_SIZE);
            }else {
                SelectObject(hdc, hPen);
                SelectObject(hdc, hBrush);
                Rectangle(hdc, 
                    BOUND_SIZE + TETRIS_SIZE*x, 
                    BOUND_SIZE + TETRIS_SIZE*y, 
                    BOUND_SIZE + TETRIS_SIZE*x + TETRIS_SIZE, 
                    BOUND_SIZE + TETRIS_SIZE*y + TETRIS_SIZE);
            }
        }
    }
}

//绘制方块
VOID DrawTetris(HDC hdc, int x, int y, int tet[4][4]) {
    HPEN hPen = (HPEN)GetStockObject(BLACK_PEN);
    HBRUSH hBrush = (HBRUSH)GetStockObject(BLACK_BRUSH);
    SelectObject(hdc, hPen);
    SelectObject(hdc, hBrush);
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (tet[i][j]) {
                Rectangle(hdc, 
                    BOUND_SIZE + (x + j)*TETRIS_SIZE, 
                    BOUND_SIZE + (y + i)*TETRIS_SIZE, 
                    BOUND_SIZE + (x + j + 1 )*TETRIS_SIZE,
                    BOUND_SIZE + (y + i + 1)*TETRIS_SIZE);
            }
        }
    }
}

//旋转方块
VOID rotateTetris(int tet[4][4]) {
    int x, y;
    int bNewTet[4][4];
    for (x = 0; x < 4; x++) {    
        for (y = 0; y < 4; y++) {
            bNewTet[x][y] = tet[3 - y][x];
        }
    }
    //tet = bNewTet
    memcpy(tet, bNewTet, sizeof(bNewTet));
}

//合并背景方块和消方块
VOID RefreshTetris(int x, int y, int TETData[4][4], int gb[GAME_X][GAME_Y]) {
    //合并TETData和gb;
    int i, j;
    for (j = 0; j < 4; j++) {
        for (i = 0; i < 4; i++) {
            if (TETData[j][i] == 1) {
                gb[x + i][y + j] = 1;
            }
        }
    }
    int flag, newY;
    for (i = GAME_Y, newY = GAME_Y; i >= 0; i--) {
        flag = 1;
        for (j = 0; j < GAME_X; j++) {
            game_board[j][newY] = game_board[j][i];
            if (game_board[j][i] == 0) {
                flag = 0;
            }
        }
        if (flag == 1) {
            //满格的话，用上一行替换这一行
        }else {
            //如果没有满格的话
            newY--;
        }
    }
}
//返回1的话就是碰到，返回0就是没有碰到;
int CheckTetris(int x, int y, int TETData[4][4], int gb[GAME_X][GAME_Y]) {
    if (x < 0) {
        return 1;
    }
    int flag = 0, i = 0, j = 0;
    for (j=0; j < 4; j++) {
        for (i=0; i < 4; i++) {
            if (TETData[j][i] == 1) {
                if (x + i >= GAME_X) {
                    return 1;
                }
                if (y + j >= GAME_Y) {
                    return 1;
                }
                if (gb[x + i][y + j]) {
                    return 1;
                }
            }
        }
    }
    return 0;
}
//随机生成方块
VOID generateTetris(int TETData[4][4]) {
    srand(time(NULL));
    int getTetris = rand()%TetrisCount;
    currentTetris;
    memcpy(currentTetris, Tetris[getTetris], sizeof(currentTetris));
}
//
//  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)
{
    switch (message)
    {
    case WM_CREATE:
        {

            memset(game_board, 0, sizeof(game_board));
            RECT rect;
            int nWinX, nWinY, nClientX, nClientY, nScreenWidth, nScreenHeight, userWidth, userHeight;
            GetWindowRect(hWnd, &rect);
            //获取窗口大小
            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;
            //计算窗口大小
            userWidth = 3 * BOUND_SIZE + GAME_X *TETRIS_SIZE + (nWinX - nClientX);
            userHeight = 2 * BOUND_SIZE + GAME_Y*TETRIS_SIZE + (nWinY - nClientY);
            //移动居中
            nScreenWidth = GetSystemMetrics(SM_CXSCREEN);
            nScreenHeight = GetSystemMetrics(SM_CYSCREEN);
            //设置对象在桌面中的位置
            MoveWindow(hWnd, (nScreenWidth - userWidth) / 2, (nScreenHeight - userHeight) / 2, userWidth, userHeight, TRUE);
            //启动定时器
            SetTimer(hWnd, timer, 1000, NULL);
        }
    break;
    case WM_TIMER:
    {
        if (0==CheckTetris(X, Y + 1, currentTetris, game_board)) {
            Y++;
        }
        else {
            //合成方块到游戏面板中
            RefreshTetris(X, Y , currentTetris, game_board);
            //生成新的方块
            generateTetris(currentTetris);
            //X,Y重新赋值
            Y = 0;
            X = 3;
        };
        InvalidateRect(hWnd, NULL, true);
    }
    break;
    case WM_LBUTTONDOWN:
    {
        //测试代码
         //rotateTetris(currentTetris)
        //刷新界面
        //InvalidateRect(hWnd, NULL, true)
    }
    break;
    case WM_COMMAND:
        {
            int wmId = LOWORD(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_KEYDOWN:
        {
            switch(wParam) {
                case VK_LEFT :
                    {
                        if (0 == CheckTetris(X-1, Y , currentTetris, game_board)) {
                            X--;
                        }
                    }
                break;
                case VK_RIGHT:
                    {
                        if (0 == CheckTetris(X + 1, Y, currentTetris, game_board)) {
                            X++;
                        }
                    }
                break;
                case VK_UP:
                    {
                        memcpy(tempTetris, currentTetris, sizeof(currentTetris));
                        rotateTetris(tempTetris);
                        if (0 == CheckTetris(X, Y, tempTetris, game_board)) {
                            rotateTetris(currentTetris);
                        }
                    }
                break;
                case VK_DOWN:
                    {
                    while (0 == CheckTetris(X, Y + 1, currentTetris, game_board)) {
                            Y++;
                        }
                    }
                break;
                default:
                    {

                    }
                break;
            }
        }
        break;
    case WM_PAINT:
        {
            PAINTSTRUCT ps;
            HDC hdc = BeginPaint(hWnd, &ps);
            // TODO: 在此处添加使用 hdc 的任何绘图代码...
            DrawBackGround(hdc);
            DrawTetris(hdc, X,Y, currentTetris);
            EndPaint(hWnd, &ps);
        }
        break;
    case WM_DESTROY:
        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;
}

　　eof