用Python写一个经典的俄罗斯方块

好的，下面是一个简单的经典俄罗斯方块游戏的 Python 代码示例：

import pygame
import random

# 初始化 pygame
pygame.init()

# 定义游戏窗口大小
window_width = 400
window_height = 600

# 定义方块大小
block_size = 20

# 定义游戏界面颜色
bg_color = (255, 255, 255)

# 定义方块颜色
block_color = (0, 0, 0)

# 创建游戏窗口
window = pygame.display.set_mode((window_width, window_height))

# 定义方块形状
shapes = [
    [[1, 0], [1, 0], [1, 1]],
    [[0, 1], [0, 1], [1, 1]],
    [[1, 1], [1, 0], [1, 0]],
    [[1, 1], [0, 1], [0, 1]],
    [[1, 1, 0], [0, 1, 1]],
    [[0, 1, 1], [1, 1, 0]],
    [[1, 1, 1, 1]],
]

# 定义方块初始位置
start_x = window_width // 2 - block_size * 2
start_y = 0

# 定义游戏区域
game_area = [[0 for _ in range(window_width // block_size)] for _ in range(window_height // block_size)]

# 定义当前方块及其位置
current_shape = random.choice(shapes)
current_x = start_x
current_y = start_y

# 定义游戏帧率
fps = 30

# 游戏主循环
while True:
    # 处理事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()
        elif event.type == pygame.KEYDOWN:
            # 方向键控制方块移动
            if event.key == pygame.K_LEFT:
                if current_x > 0:
                    current_x -= block_size
            elif event.key == pygame.K_RIGHT:
                if current_x < window_width - block_size * len(current_shape[0]):
                    current_x += block_size
            elif event.key == pygame.K_DOWN:
                if current_y < window_height - block_size * len(current_shape):
                    current_y += block_size

    # 绘制游戏区域
    window.fill(bg_color)
    for i in range(len(game_area)):
        for j in range(len(game_area[i])):
            if game_area[i][j] == 1:
                pygame.draw.rect(window, block_color, (j * block_size, i * block_size, block_size, block_size))

    # 绘制当前方块
    for i in range(len(current_shape)):
        for j in range(len(current_shape[i])):
            if current_shape[i][j] == 1:
                pygame.draw.rect(window, block_color, (current_x + j * block_size, current_y + i * block_size, block_size, block_size))

    # 方块下落
    if current_y < window_height - block_size * len(current_shape):
        current_y += block_size
    else:
        # 将当前方块写入游戏区域
        for i in range(len(current_shape)):
            for j in range(len(current_shape[i])):
                if current_shape[i][j] == 1:
                    game_area[(current_y + i) // block_size][(current_x + j) // block_size] = 1
        # 随机生成下一个方块
        current_shape = random.choice(shapes)
        current_x = start_x
        current_y = start_y

    # 消除完整行
    for i in range(len(game_area)):
        if 0 not in game_area[i]:
            game_area.pop(i)
            game_area.insert(0, [0 for _ in range(window_width // block_size)])

    # 更新显示
    pygame.display.update()

    # 控制帧率
    pygame.time.Clock().tick(fps)

这个示例中，我们使用了 Pygame 游戏库来创建游戏窗口和处理事件。在主循环中，我们不断绘制游戏区域、当前方块和处理方块下落、消除完整行等逻辑。