python俄罗斯方块代码

以下是一个简单的Python俄罗斯方块代码：

import pygame
import random

# 初始化pygame
pygame.init()

# 定义色彩
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)

# 定义方块大小和间隙
block_size = 30
block_gap = 2

# 定义游戏区域大小
game_width = 10 * (block_size + block_gap)
game_height = 20 * (block_size + block_gap)

# 创建游戏区域
game_screen = pygame.display.set_mode((game_width, game_height))
pygame.display.set_caption("俄罗斯方块")

# 创建方块形状
shape_I = [[1, 1, 1, 1]]
shape_J = [[1, 0, 0], [1, 1, 1]]
shape_L = [[0, 0, 1], [1, 1, 1]]
shape_O = [[1, 1], [1, 1]]
shape_S = [[0, 1, 1], [1, 1, 0]]
shape_T = [[0, 1, 0], [1, 1, 1]]
shape_Z = [[1, 1, 0], [0, 1, 1]]
shapes = [shape_I, shape_J, shape_L, shape_O, shape_S, shape_T, shape_Z]

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

# 定义方块类
class Block:
    def __init__(self, shape):
        self.shape = shape
        self.color = random.choice(colors)
        self.x = int(game_width / 2 / (block_size + block_gap)) * (block_size + block_gap)
        self.y = 0

    def draw(self):
        for i in range(len(self.shape)):
            for j in range(len(self.shape[0])):
                if self.shape[i][j] == 1:
                    pygame.draw.rect(game_screen, self.color, [self.x + j * (block_size + block_gap), self.y + i * (block_size + block_gap), block_size, block_size])

    def move_down(self):
        self.y += block_size + block_gap

    def move_left(self):
        self.x -= block_size + block_gap

    def move_right(self):
        self.x += block_size + block_gap

# 定义游戏循环
def game_loop():
    # 创建方块
    block = Block(random.choice(shapes))

    # 设置游戏速度
    clock = pygame.time.Clock()
    speed = 10

    # 游戏循环
    while True:
        # 处理事件
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                quit()
            elif event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    block.move_left()
                elif event.key == pygame.K_RIGHT:
                    block.move_right()

        # 移动方块
        block.move_down()

        # 如果方块到达底部，创建新方块
        if block.y >= game_height - block_size - block_gap:
            block = Block(random.choice(shapes))

        # 绘制游戏区域
        game_screen.fill(BLACK)
        for i in range(game_width // (block_size + block_gap)):
            for j in range(game_height // (block_size + block_gap)):
                pygame.draw.rect(game_screen, GRAY, [i * (block_size + block_gap), j * (block_size + block_gap), block_size, block_size], 1)

        # 绘制方块
        block.draw()

        # 更新屏幕
        pygame.display.update()

        # 控制游戏速度
        clock.tick(speed)

# 开始游戏循环
game_loop()

该代码使用了pygame库来实现俄罗斯方块游戏。游戏循环中，每隔一定时间就会创建一个新方块，并让当前方块向下移动。玩家可以通过左右方向键来移动方块的位置。如果方块到达底部，就会创建一个新方块。游戏区域使用灰色方块来表示，已经落下的方块会留在游戏区域中。