c语言写一个俄罗斯方块程序

以下是一个简单的俄罗斯方块程序的C代码示例：

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <conio.h>
#include <windows.h>

#define WIDTH 10
#define HEIGHT 20
#define BLOCK_NUM 7

int block[BLOCK_NUM][4][4] =
{
    { {0,1,0,0}, {0,1,0,0}, {0,1,0,0}, {0,1,0,0} },
    { {0,0,0,0}, {1,1,1,1}, {0,0,0,0}, {0,0,0,0} },
    { {0,1,1,0}, {0,1,0,0}, {0,1,0,0}, {0,0,0,0} },
    { {0,1,0,0}, {0,1,1,0}, {0,0,1,0}, {0,0,0,0} },
    { {0,0,1,0}, {0,1,1,0}, {0,1,0,0}, {0,0,0,0} },
    { {0,0,0,0}, {0,1,1,0}, {0,1,1,0}, {0,0,0,0} },
    { {0,0,0,0}, {0,1,1,0}, {1,1,0,0}, {0,0,0,0} }
};

int board[HEIGHT][WIDTH] = {0};

void clearScreen()
{
    system("cls");
}

void printBoard()
{
    int i, j;
    for (i = 0; i < HEIGHT; i++)
    {
        for (j = 0; j < WIDTH; j++)
        {
            if (board[i][j] != 0)
                printf("[]");
            else
                printf("  ");
        }
        printf("\n");
    }
}

int checkCollision(int blockID, int x, int y)
{
    int i, j;
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 4; j++)
        {
            if (block[blockID][i][j] != 0 &&
                (x + j >= WIDTH || x + j < 0 ||
                 y + i >= HEIGHT || y + i < 0 ||
                 board[y + i][x + j] != 0))
                return 1;
        }
    }
    return 0;
}

void placeBlock(int blockID, int x, int y)
{
    int i, j;
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 4; j++)
        {
            if (block[blockID][i][j] != 0)
                board[y + i][x + j] = blockID + 1;
        }
    }
}

void removeBlock(int blockID, int x, int y)
{
    int i, j;
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 4; j++)
        {
            if (block[blockID][i][j] != 0)
                board[y + i][x + j] = 0;
        }
    }
}

void rotateBlock(int blockID)
{
    int i, j;
    int temp[4][4];
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 4; j++)
        {
            temp[i][j] = block[blockID][i][j];
        }
    }
    for (i = 0; i < 4; i++)
    {
        for (j = 0; j < 4; j++)
        {
            block[blockID][i][j] = temp[3 - j][i];
        }
    }
}

int main()
{
    srand((unsigned)time(NULL));
    int blockID = rand() % BLOCK_NUM;
    int x = WIDTH / 2 - 2;
    int y = 0;
    int score = 0;
    int speed = 20;

    while (1)
    {
        clearScreen();
        if (checkCollision(blockID, x, y + 1) == 0)
        {
            removeBlock(blockID, x, y);
            y++;
            placeBlock(blockID, x, y);
        }
        else
        {
            placeBlock(blockID, x, y);
            blockID = rand() % BLOCK_NUM;
            x = WIDTH / 2 - 2;
            y = 0;
            score += 10;
            speed = 20 - score / 100;
            if (speed < 1) speed = 1;
            Sleep(speed);
            for (int i = 0; i < HEIGHT; i++)
            {
                int isFullLine = 1;
                for (int j = 0; j < WIDTH; j++)
                {
                    if (board[i][j] == 0)
                    {
                        isFullLine = 0;
                        break;
                    }
                }
                if (isFullLine == 1)
                {
                    for (int k = i; k > 0; k--)
                    {
                        for (int j = 0; j < WIDTH; j++)
                        {
                            board[k][j] = board[k - 1][j];
                        }
                    }
                    score += 100;
                }
            }
        }

        if (_kbhit())
        {
            int key = _getch();
            switch (key)
            {
            case 'w':
            case 'W':
            case ' ':
                rotateBlock(blockID);
                if (checkCollision(blockID, x, y) == 1)
                    rotateBlock(blockID);
                break;
            case 'a':
            case 'A':
                if (checkCollision(blockID, x - 1, y) == 0)
                {
                    removeBlock(blockID, x, y);
                    x--;
                    placeBlock(blockID, x, y);
                }
                break;
            case 'd':
            case 'D':
                if (checkCollision(blockID, x + 1, y) == 0)
                {
                    removeBlock(blockID, x, y);
                    x++;
                    placeBlock(blockID, x, y);
                }
                break;
            case 's':
            case 'S':
                while (checkCollision(blockID, x, y + 1) == 0)
                {
                    removeBlock(blockID, x, y);
                    y++;
                    placeBlock(blockID, x, y);
                }
                break;
            case 'q':
            case 'Q':
                return 0;
            }
        }

        printBoard();
        printf("Score: %d\n", score);
    }

    return 0;
}

这个程序使用了Windows的控制台API来清空屏幕和改变光标位置。如果你是在其他操作系统上运行此程序，你需要使用相应的清屏函数来代替 `system("cls")`。