用c语言写一个俄罗斯方块游戏

好的，下面是一个简单的俄罗斯方块游戏的C语言代码：

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

#define WIDTH 10
#define HEIGHT 20

int board[HEIGHT][WIDTH];
int shape[7][4][4] = {
    {{0,0,0,0},
     {1,1,1,1},
     {0,0,0,0},
     {0,0,0,0}},
    {{0,0,0,0},
     {0,2,2,0},
     {0,2,2,0},
     {0,0,0,0}},
    {{0,0,0,0},
     {0,0,3,3},
     {0,3,3,0},
     {0,0,0,0}},
    {{0,0,0,0},
     {0,4,4,0},
     {4,4,0,0},
     {0,0,0,0}},
    {{0,0,0,0},
     {5,5,0,0},
     {0,5,5,0},
     {0,0,0,0}},
    {{0,0,0,0},
     {0,6,0,0},
     {6,6,6,0},
     {0,0,0,0}},
    {{0,0,0,0},
     {0,7,0,0},
     {0,7,7,0},
     {0,0,7,0}}
};
int pos_x, pos_y;
int cur_shape, cur_angle;

int check_block(int x, int y)
{
    if (x < 0 || x >= WIDTH || y < 0 || y >= HEIGHT || board[y][x])
        return 0;
    return 1;
}

void rotate_shape(int angle)
{
    int tmp[4][4];
    int i, j;

    for (i = 0; i < 4; i++)
        for (j = 0; j < 4; j++)
            tmp[i][j] = shape[cur_shape][i][j];

    while (angle--) {
        for (i = 0; i < 4; i++)
            for (j = 0; j < 4; j++)
                shape[cur_shape][i][j] = tmp[3-j][i];
    }
}

void new_block()
{
    cur_shape = rand() % 7;
    cur_angle = rand() % 4;
    pos_x = WIDTH / 2 - 2;
    pos_y = 0;
    if (!check_block(pos_x, pos_y)) {
        printf("Game Over!\n");
        exit(0);
    }
}

void draw_board()
{
    int i, j;
    system("cls");
    printf("Score: 0\n");
    for (i = 0; i < HEIGHT; i++) {
        for (j = 0; j < WIDTH; j++) {
            if (board[i][j])
                printf("#");
            else if (check_block(j, i+1))
                printf(".");
            else
                printf(" ");
        }
        printf("\n");
    }
}

void merge_block()
{
    int i, j;
    for (i = 0; i < 4; i++)
        for (j = 0; j < 4; j++)
            if (shape[cur_shape][i][j])
                board[pos_y+i][pos_x+j] = shape[cur_shape][i][j];
}

void check_line()
{
    int i, j, k;
    for (i = HEIGHT-1; i >= 0; i--) {
        for (j = 0; j < WIDTH; j++) {
            if (!board[i][j])
                break;
        }
        if (j == WIDTH) {
            for (k = i; k > 0; k--)
                for (j = 0; j < WIDTH; j++)
                    board[k][j] = board[k-1][j];
            for (j = 0; j < WIDTH; j++)
                board[0][j] = 0;
            i++;
        }
    }
}

int main()
{
    int i, j, ch;

    srand((unsigned)time(NULL));

    new_block();

    while (1) {
        draw_board();

        if (_kbhit()) {
            ch = _getch();
            switch (ch) {
            case 'a':
                if (check_block(pos_x-1, pos_y))
                    pos_x--;
                break;
            case 'd':
                if (check_block(pos_x+1, pos_y))
                    pos_x++;
                break;
            case 's':
                if (check_block(pos_x, pos_y+1))
                    pos_y++;
                break;
            case 'w':
                rotate_shape(1);
                if (!check_block(pos_x, pos_y))
                    rotate_shape(3);
                break;
            case 'q':
                rotate_shape(3);
                if (!check_block(pos_x, pos_y))
                    rotate_shape(1);
                break;
            case ' ':
                while (check_block(pos_x, pos_y+1))
                    pos_y++;
                merge_block();
                new_block();
                check_line();
                break;
            case 'r':
                for (i = 0; i < HEIGHT; i++)
                    for (j = 0; j < WIDTH; j++)
                        board[i][j] = 0;
                new_block();
                break;
            case 'x':
                exit(0);
            }
        }

        if (!check_block(pos_x, pos_y+1)) {
            merge_block();
            new_block();
            check_line();
        } else {
            pos_y++;
        }
    }

    return 0;
}

这个代码使用了Windows下的conio库，可以通过Visual Studio等IDE来编译运行。游戏操作：a/d键左右移动，s键加速下落，w键顺时针旋转，q键逆时针旋转，空格键直接落下，r键重新开始，x键退出游戏。