用python写一个俄罗斯方块程序

好的，以下是一个简单的Python俄罗斯方块程序示例代码：

import pygame
import random

# 初始化pygame
pygame.init()

# 游戏窗口大小
width, height = 500, 600
screen = pygame.display.set_mode((width, height))
pygame.display.set_caption('俄罗斯方块')

# 定义颜色
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
GRAY = (128, 128, 128)
RED = (255, 0, 0)
GREEN = (0, 255, 0)
BLUE = (0, 0, 255)
YELLOW = (255, 255, 0)
CYAN = (0, 255, 255)
MAGENTA = (255, 0, 255)

# 定义方块大小
block_size = 25

# 定义游戏区域
play_width = 10 * block_size
play_height = 20 * block_size
play_x = width // 2 - play_width // 2
play_y = height - play_height - 10

# 定义游戏区域边框
border_width = 4

# 定义字体
font = pygame.font.SysFont(None, 30)

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

    [[0, 2, 2],
     [2, 2, 0]],

    [[3, 3, 0],
     [0, 3, 3]],

    [[4, 0, 0],
     [4, 4, 4]],

    [[0, 0, 5],
     [5, 5, 5]],

    [[6, 6],
     [6, 6]],

    [[7, 7, 7, 7]]
]

# 定义方块颜色
colors = [
    GRAY,
    BLUE,
    YELLOW,
    RED,
    CYAN,
    MAGENTA,
    GREEN
]

# 定义方块类
class Block:
    def __init__(self, x, y, shape):
        self.x = x
        self.y = y
        self.shape = shape
        self.color = colors[shapes.index(shape)]
        self.rotation = 0

# 定义游戏区域数组
play_area = [[0 for _ in range(10)] for _ in range(20)]

# 绘制游戏区域
def draw_play_area():
    pygame.draw.rect(screen, WHITE, (play_x - border_width, play_y - border_width, play_width + border_width * 2, play_height + border_width * 2))
    pygame.draw.rect(screen, BLACK, (play_x, play_y, play_width, play_height))
    for y in range(20):
        for x in range(10):
            if play_area[y][x] != 0:
                pygame.draw.rect(screen, colors[play_area[y][x] - 1], (play_x + x * block_size, play_y + y * block_size, block_size, block_size), 0)
                pygame.draw.rect(screen, BLACK, (play_x + x * block_size, play_y + y * block_size, block_size, block_size), 1)

# 绘制方块
def draw_block(block):
    for y in range(len(block.shape)):
        for x in range(len(block.shape[0])):
            if block.shape[y][x] != 0:
                pygame.draw.rect(screen, block.color, (play_x + (block.x + x) * block_size, play_y + (block.y + y) * block_size, block_size, block_size), 0)
                pygame.draw.rect(screen, BLACK, (play_x + (block.x + x) * block_size, play_y + (block.y + y) * block_size, block_size, block_size), 1)

# 判断方块是否可以移动
def can_move(block, dx, dy):
    for y in range(len(block.shape)):
        for x in range(len(block.shape[0])):
            if block.shape[y][x] != 0:
                if block.y + y + dy < 0:
                    return False
                if block.x + x + dx < 0 or block.x + x + dx >= 10:
                    return False
                if play_area[block.y + y + dy][block.x + x + dx] != 0:
                    return False
    return True

# 判断方块是否可以旋转
def can_rotate(block):
    new_shape = [list(row) for row in block.shape]
    for i in range(len(block.shape)):
        for j in range(len(block.shape[0])):
            new_shape[j][len(block.shape) - 1 - i] = block.shape[i][j]
    for y in range(len(new_shape)):
        for x in range(len(new_shape[0])):
            if new_shape[y][x] != 0:
                if block.y + y < 0:
                    return False
                if block.x + x < 0 or block.x + x >= 10:
                    return False
                if play_area[block.y + y][block.x + x] != 0:
                    return False
    return True

# 将方块放到游戏区域中
def place_block(block):
    for y in range(len(block.shape)):
        for x in range(len(block.shape[0])):
            if block.shape[y][x] != 0:
                play_area[block.y + y][block.x + x] = shapes.index(block.shape) + 1

# 消除满行
def clear_lines():
    lines_cleared = 0
    for y in range(len(play_area)):
        if all(play_area[y]):
            play_area.pop(y)
            play_area.insert(0, [0 for _ in range(10)])
            lines_cleared += 1
    return lines_cleared

# 绘制得分
def draw_score(score):
    text = font.render('得分: ' + str(score), True, WHITE)
    screen.blit(text, (10, 10))

# 开始游戏
def start_game():
    # 初始化游戏
    game_over = False
    block = Block(3, 0, random.choice(shapes))
    next_block = Block(3, 0, random.choice(shapes))
    score = 0

    # 游戏循环
    while not game_over:
        # 处理事件
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                game_over = True
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT and can_move(block, -1, 0):
                    block.x -= 1
                if event.key == pygame.K_RIGHT and can_move(block, 1, 0):
                    block.x += 1
                if event.key == pygame.K_DOWN and can_move(block, 0, 1):
                    block.y += 1
                if event.key == pygame.K_UP and can_rotate(block) :
                    block.rotation = (block.rotation + 1) % len(block.shape)
                    block.shape = [list(row) for row in zip(*block.shape[::-1])]

        # 自动下落
        if can_move(block, 0, 1):
            block.y += 1
        else:
            place_block(block)
            lines_cleared = clear_lines()
            score += lines_cleared * 100
            if lines_cleared > 0:
                pygame.time.delay(100)
            block = next_block
            next_block = Block(3, 0, random.choice(shapes))
            if not can_move(block, 0, 0):
                game_over = True

        # 绘制游戏界面
        screen.fill(BLACK)
        draw_play_area()
        draw_block(block)
        draw_block(next_block)
        draw_score(score)
        pygame.display.update()

        # 控制游戏速度
        pygame.time.delay(50)

    # 退出游戏
    pygame.quit()

# 开始游戏
start_game()

运行程序后，它将启动一个简单的俄罗斯方块游戏，玩家可以使用方向键控制方块的移动和旋转，目标是在游戏区域中放置方块并消除满行。注意，此代码只是一个简单的示例，还有很多地方可以进行改进和扩展，比如添加音效、增加难度等等。