使用C语言写一个俄罗斯方块

以下是使用 C 语言实现俄罗斯方块的代码，主要使用了 ncurses 库进行图形化界面的绘制：

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

#define ROW 20
#define COL 10

// 俄罗斯方块的七种形状
const int shapes[7][4][4] = {
    // I
    {
        {0, 0, 0, 0},
        {1, 1, 1, 1},
        {0, 0, 0, 0},
        {0, 0, 0, 0}
    },
    // J
    {
        {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}
    },
    // O
    {
        {1, 1, 0, 0},
        {1, 1, 0, 0},
        {0, 0, 0, 0},
        {0, 0, 0, 0}
    },
    // S
    {
        {0, 1, 1, 0},
        {1, 1, 0, 0},
        {0, 0, 0, 0},
        {0, 0, 0, 0}
    },
    // T
    {
        {0, 1, 0, 0},
        {1, 1, 1, 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}
    }
};

// 方块的颜色
const int colors[7] = {
    COLOR_CYAN,
    COLOR_BLUE,
    COLOR_MAGENTA,
    COLOR_YELLOW,
    COLOR_GREEN,
    COLOR_RED,
    COLOR_WHITE
};

// 用于存储方块的位置和颜色
int block[4][4];
int color;

// 用于存储方块的位置
int row, col;

// 用于存储已经下落的方块
int board[ROW][COL];

// 初始化 ncurses 库
void init_ncurses() {
    initscr();
    cbreak();
    noecho();
    curs_set(0);
    keypad(stdscr, TRUE);
    start_color();
}

// 初始化游戏界面
void init_game() {
    clear();
    for (int i = 0; i < ROW; i++) {
        for (int j = 0; j < COL; j++) {
            board[i][j] = -1;
        }
    }
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            block[i][j] = 0;
        }
    }
    row = 0;
    col = COL / 2 - 2;
    int index = rand() % 7;
    color = colors[index];
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            block[i][j] = shapes[index][i][j];
        }
    }
}

// 绘制游戏界面
void draw_game() {
    for (int i = 0; i < ROW; i++) {
        for (int j = 0; j < COL; j++) {
            if (board[i][j] != -1) {
                attron(COLOR_PAIR(board[i][j]));
                mvprintw(i, j * 2, "  ");
                attroff(COLOR_PAIR(board[i][j]));
            } else {
                mvprintw(i, j * 2, "  ");
            }
        }
    }
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (block[i][j]) {
                attron(COLOR_PAIR(color));
                mvprintw(row + i, (col + j) * 2, "  ");
                attroff(COLOR_PAIR(color));
            }
        }
    }
    refresh();
}

// 判断方块是否可以下落
int can_move_down() {
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (block[i][j]) {
                int x = row + i + 1;
                int y = col + j;
                if (x >= ROW || board[x][y] != -1) {
                    return 0;
                }
            }
        }
    }
    return 1;
}

// 把方块放到底部
void put_block() {
    for (int i = 0; i < 4; i++) {
        for (int j = 0; j < 4; j++) {
            if (block[i][j]) {
                board[row + i][col + j] = color;
            }
        }
    }
}

// 消除满行
void eliminate_lines() {
    for (int i = ROW - 1; i >= 0; i--) {
        int flag = 1;
        for (int j = 0; j < COL; j++) {
            if (board[i][j] == -1) {
                flag = 0;
                break;
            }
        }
        if (flag) {
            for (int j = i; j > 0; j--) {
                for (int k = 0; k < COL; k++) {
                    board[j][k] = board[j - 1][k];
                }
            }
            i++;
        }
    }
}

int main() {
    srand(time(NULL));
    init_ncurses();
    init_pair(COLOR_CYAN, COLOR_CYAN, COLOR_BLACK);
    init_pair(COLOR_BLUE, COLOR_BLUE, COLOR_BLACK);
    init_pair(COLOR_MAGENTA, COLOR_MAGENTA, COLOR_BLACK);
    init_pair(COLOR_YELLOW, COLOR_YELLOW, COLOR_BLACK);
    init_pair(COLOR_GREEN, COLOR_GREEN, COLOR_BLACK);
    init_pair(COLOR_RED, COLOR_RED, COLOR_BLACK);
    init_pair(COLOR_WHITE, COLOR_WHITE, COLOR_BLACK);
    while (1) {
        init_game();
        while (1) {
            draw_game();
            timeout(500);
            int ch = getch();
            if (ch == KEY_LEFT) {
                int flag = 1;
                for (int i = 0; i < 4; i++) {
                    for (int j = 0; j < 4; j++) {
                        if (block[i][j]) {
                            int x = row + i;
                            int y = col + j - 1;
                            if (y < 0 || board[x][y] != -1) {
                                flag = 0;
                                break;
                            }
                        }
                    }
                }
                if (flag) {
                    col--;
                }
            } else if (ch == KEY_RIGHT) {
                int flag = 1;
                for (int i = 0; i < 4; i++) {
                    for (int j = 0; j < 4; j++) {
                        if (block[i][j]) {
                            int x = row + i;
                            int y = col + j + 1;
                            if (y >= COL || board[x][y] != -1) {
                                flag = 0;
                                break;
                            }
                        }
                    }
                }
                if (flag) {
                    col++;
                }
            } else if (ch == KEY_DOWN) {
                if (can_move_down()) {
                    row++;
                } else {
                    put_block();
                    eliminate_lines();
                    break;
                }
            } else if (ch == KEY_UP) {
                int tmp[4][4];
                int cnt = 0;
                for (int j = 3; j >= 0; j--) {
                    for (int i = 0; i < 4; i++) {
                        tmp[i][cnt] = block[j][i];
                    }
                    cnt++;
                }
                int flag = 1;
                for (int i = 0; i < 4; i++) {
                    for (int j = 0; j < 4; j++) {
                        if (tmp[i][j]) {
                            int x = row + i;
                            int y = col + j;
                            if (x >= ROW || y < 0 || y >= COL || board[x][y] != -1) {
                                flag = 0;
                                break;
                            }
                        }
                    }
                }
                if (flag) {
                    for (int i = 0; i < 4; i++) {
                        for (int j = 0; j < 4; j++) {
                            block[i][j] = tmp[i][j];
                        }
                    }
                }
            } else if (ch == 'q' || ch == 'Q') {
                endwin();
                return 0;
            }
            if (can_move_down()) {
                row++;
            } else {
                put_block();
                eliminate_lines();
                break;
            }
        }
    }
    endwin();
    return 0;
}

说明：此代码只是一个简单的实现，可能存在一些不足之处。