写一段俄罗斯方块的C语言代码

以下是一个简单的俄罗斯方块游戏的C语言代码，包括基本的游戏逻辑和绘制方块的函数：

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

#define ROWS 20
#define COLS 10

int board[ROWS][COLS] = {0};

int cur_tetromino[4][4];
int cur_row, cur_col;
int score = 0;

void generate_tetromino() {
    int tetrominos[7][4][4] = {
        {{1, 1, 0, 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}},
        
        {{0, 1, 1, 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, 0, 1, 0},
         {1, 1, 1, 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}},
        
        {{1, 1, 1, 1},
         {0, 0, 0, 0},
         {0, 0, 0, 0},
         {0, 0, 0, 0}}
    };
    
    int rand_tetromino = rand() % 7;
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            cur_tetromino[i][j] = tetrominos[rand_tetromino][i][j];
        }
    }
    cur_row = 0;
    cur_col = COLS / 2 - 2;
}

void draw_board() {
    system("cls");
    for (int i = 0; i < ROWS; i++) {
        for (int j = 0; j < COLS; j++) {
            if (board[i][j] == 0) {
                printf(" ");
            } else {
                printf("#");
            }
        }
        printf("\n");
    }
}

void draw_tetromino() {
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (cur_tetromino[i][j] == 1) {
                board[cur_row + i][cur_col + j] = 1;
            }
        }
    }
}

void erase_tetromino() {
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (cur_tetromino[i][j] == 1) {
                board[cur_row + i][cur_col + j] = 0;
            }
        }
    }
}

int check_collision() {
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (cur_tetromino[i][j] == 1 && board[cur_row + i][cur_col + j] == 1) {
                return 1;
            }
        }
    }
    return 0;
}

void clear_lines() {
    int lines_cleared = 0;
    for (int i = ROWS - 1; i >= 0; i--) {
        int line_full = 1;
        for (int j = 0; j < COLS; j++) {
            if (board[i][j] == 0) {
                line_full = 0;
                break;
            }
        }
        if (line_full) {
            lines_cleared++;
            for (int j = i; j > 0; j--) {
                for (int k = 0; k < COLS; k++) {
                    board[j][k] = board[j - 1][k];
                }
            }
            for (int j = 0; j < COLS; j++) {
                board[0][j] = 0;
            }
            i++;
        }
    }
    score += lines_cleared * lines_cleared * 100;
}

int main() {
    srand(time(NULL));
    generate_tetromino();
    while (1) {
        draw_board();
        draw_tetromino();
        if (check_collision()) {
            erase_tetromino();
            clear_lines();
            generate_tetromino();
        } else {
            cur_row++;
        }
        if (cur_row + 4 > ROWS) {
            printf("Game over!\n");
            printf("Final score: %d\n", score);
            break;
        }
        if (_kbhit()) {
            int key = _getch();
            if (key == 'a' && cur_col > 0) {
                erase_tetromino();
                cur_col--;
            } else if (key == 'd' && cur_col + 4 < COLS) {
                erase_tetromino();
                cur_col++;
            } else if (key == 's') {
                while (!check_collision()) {
                    cur_row++;
                }
                cur_row--;
            } else if (key == 'q') {
                exit(0);
            }
        }
        Sleep(100);
    }
    return 0;
}

注意：这段代码使用了Windows特有的 `_kbhit()` 和 `_getch()` 函数来获取按键输入，如果在其他操作系统上运行可能会有问题。