写一个C语言的俄罗斯方块代码

以下是一个简单的C语言俄罗斯方块代码示例，仅供参考：

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

#define WIDTH 12
#define HEIGHT 20
#define BLOCK_SIZE 4

int board[HEIGHT][WIDTH];

void init_board() {
    int i, j;
    for (i = 0; i < HEIGHT; i++) {
        for (j = 0; j < WIDTH; j++) {
            board[i][j] = (j == 0 || j == WIDTH - 1 || i == HEIGHT - 1) ? 1 : 0;
        }
    }
}

int check_collision(int block[BLOCK_SIZE][BLOCK_SIZE], int x, int y) {
    int i, j;
    for (i = 0; i < BLOCK_SIZE; i++) {
        for (j = 0; j < BLOCK_SIZE; j++) {
            if (block[i][j] && board[y + i][x + j]) {
                return 1;
            }
        }
    }
    return 0;
}

void draw_block(int block[BLOCK_SIZE][BLOCK_SIZE], int x, int y) {
    int i, j;
    for (i = 0; i < BLOCK_SIZE; i++) {
        for (j = 0; j < BLOCK_SIZE; j++) {
            if (block[i][j]) {
                board[y + i][x + j] = 1;
            }
        }
    }
}

void clear_line() {
    int i, j, k;
    for (i = HEIGHT - 2; i > 0; i--) {
        for (j = 1; j < WIDTH - 1; j++) {
            if (!board[i][j]) {
                break;
            }
        }
        if (j == WIDTH - 1) {
            for (k = i; k > 0; k--) {
                memcpy(board[k], board[k - 1], sizeof(board[k]));
            }
            i++;
        }
    }
}

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

int main() {
    int blocks[7][4][4] = {
        {{1,1,0,0}, {1,1,0,0}, {0,0,0,0}, {0,0,0,0}}, // O
        {{0,1,1,0}, {1,1,0,0}, {0,0,0,0}, {0,0,0,0}}, // Z
        {{1,1,0,0}, {0,1,1,0}, {0,0,0,0}, {0,0,0,0}}, // S
        {{0,1,0,0}, {1,1,1,0}, {0,0,0,0}, {0,0,0,0}}, // T
        {{1,0,0,0}, {1,1,1,0}, {0,0,0,0}, {0,0,0,0}}, // L
        {{0,0,1,0}, {1,1,1,0}, {0,0,0,0}, {0,0,0,0}}, // J
        {{0,1,0,0}, {1,1,1,0}, {0,0,0,0}, {0,0,0,0}}  // I
    };

    srand((unsigned) time(NULL));

    init_board();

    while (1) {
        int block_index = rand() % 7;
        int block_x = WIDTH / 2 - 2;
        int block_y = 0;
        int block_rotation = 0;
        int block[BLOCK_SIZE][BLOCK_SIZE];

        memcpy(block, blocks[block_index][block_rotation], sizeof(block));

        if (check_collision(block, block_x, block_y)) {
            break;
        }

        while (1) {
            system("cls");

            draw_block(block, block_x, block_y);
            draw_board();

            Sleep(100);

            if (kbhit()) {
                char ch = getch();
                if (ch == 'a' && !check_collision(block, block_x - 1, block_y)) {
                    block_x--;
                } else if (ch == 'd' && !check_collision(block, block_x + 1, block_y)) {
                    block_x++;
                } else if (ch == 'w') {
                    int next_rotation = (block_rotation + 1) % 4;
                    int next_block[BLOCK_SIZE][BLOCK_SIZE];
                    memcpy(next_block, blocks[block_index][next_rotation], sizeof(next_block));
                    if (!check_collision(next_block, block_x, block_y)) {
                        block_rotation = next_rotation;
                        memcpy(block, next_block, sizeof(block));
                    }
                } else if (ch == 's') {
                    while (!check_collision(block, block_x, block_y + 1)) {
                        block_y++;
                    }
                }
            }

            if (check_collision(block, block_x, block_y + 1)) {
                draw_block(block, block_x, block_y);
                clear_line();
                break;
            }

            block_y++;
        }

        int i, j;
        for (i = 1; i < HEIGHT - 1; i++) {
            for (j = 1; j < WIDTH - 1; j++) {
                if (board[i][j]) {
                    printf("[]");
                } else {
                    printf("  ");
                }
            }
            printf("\n");
        }
        printf("Game Over!\n");
    }

    return 0;
}