用python 写一个俄罗斯方块的小游戏

好的，下面是一个简单的俄罗斯方块小游戏的Python代码示例，基于Pygame库：

import pygame
import random

pygame.init()

# 游戏窗口大小
WINDOW_WIDTH = 400
WINDOW_HEIGHT = 600

# 方块大小
BLOCK_SIZE = 20

# 游戏区域大小
PLAY_WIDTH = 10 * BLOCK_SIZE
PLAY_HEIGHT = 20 * BLOCK_SIZE

# 游戏区域位置
PLAY_X = (WINDOW_WIDTH - PLAY_WIDTH) // 2
PLAY_Y = WINDOW_HEIGHT - PLAY_HEIGHT - 50

# 方块类型和颜色
SHAPES = [
    ([(0, 0), (1, 0), (2, 0), (3, 0)], (255, 0, 0)),  # I
    ([(0, 0), (1, 0), (0, 1), (1, 1)], (0, 255, 0)),  # O
    ([(0, 0), (1, 0), (1, 1), (2, 1)], (0, 0, 255)),  # J
    ([(2, 0), (1, 0), (1, 1), (0, 1)], (255, 255, 0)),  # L
    ([(1, 0), (0, 1), (1, 1), (2, 1)], (255, 0, 255)),  # T
    ([(0, 1), (1, 1), (1, 0), (2, 0)], (0, 255, 255)),  # Z
    ([(2, 1), (1, 1), (1, 0), (0, 0)], (255, 128, 0)),  # S
]

# 初始化游戏窗口
window = pygame.display.set_mode((WINDOW_WIDTH, WINDOW_HEIGHT))
pygame.display.set_caption("俄罗斯方块")

# 游戏区域背景颜色
PLAY_BG_COLOR = (0, 0, 0)

# 方块移动速度
FPS = 60
clock = pygame.time.Clock()


class Block:
    def __init__(self, shape, color):
        self.shape = shape
        self.color = color
        self.x = PLAY_X + PLAY_WIDTH // 2 - BLOCK_SIZE * 2
        self.y = PLAY_Y - BLOCK_SIZE * 4

    # 旋转方块
    def rotate(self):
        self.shape = [(y, -x) for x, y in self.shape[::-1]]

    # 移动方块
    def move(self, dx, dy):
        self.x += dx * BLOCK_SIZE
        self.y += dy * BLOCK_SIZE

    # 在游戏区域中检查方块是否合法
    def check_valid(self, board):
        for x, y in self.shape:
            if not (0 <= self.x + x * BLOCK_SIZE < PLAY_WIDTH and 0 <= self.y + y * BLOCK_SIZE < PLAY_HEIGHT) or board[
                (self.y + y * BLOCK_SIZE) // BLOCK_SIZE][(self.x + x * BLOCK_SIZE) // BLOCK_SIZE]:
                return False
        return True

    # 在游戏区域中放置方块
    def place(self, board):
        for x, y in self.shape:
            board[(self.y + y * BLOCK_SIZE) // BLOCK_SIZE][(self.x + x * BLOCK_SIZE) // BLOCK_SIZE] = self.color

    # 绘制方块
    def draw(self, surface):
        for x, y in self.shape:
            pygame.draw.rect(surface, self.color, (self.x + x * BLOCK_SIZE, self.y + y * BLOCK_SIZE, BLOCK_SIZE, BLOCK_SIZE))


# 初始化游戏区域
board = [[(0, 0, 0) for _ in range(PLAY_WIDTH // BLOCK_SIZE)] for _ in range(PLAY_HEIGHT // BLOCK_SIZE)]

# 初始化当前方块和下一个方块
current_block = Block(*random.choice(SHAPES))
next_block = Block(*random.choice(SHAPES))

# 初始化游戏分数
score = 0

# 游戏循环
while True:
    # 处理游戏事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            exit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_ESCAPE:
                pygame.quit()
                exit()
            elif event.key == pygame.K_LEFT:
                current_block.move(-1, 0)
                if not current_block.check_valid(board):
                    current_block.move(1, 0)
            elif event.key == pygame.K_RIGHT:
                current_block.move(1, 0)
                if not current_block.check_valid(board):
                    current_block.move(-1, 0)
            elif event.key == pygame.K_DOWN:
                current_block.move(0, 1)
                if not current_block.check_valid(board):
                    current_block.move(0, -1)
            elif event.key == pygame.K_UP:
                current_block.rotate()
                if not current_block.check_valid(board):
                    current_block.rotate()

    # 更新方块位置
    current_block.move(0, 1)
    if not current_block.check_valid(board):
        current_block.move(0, -1)
        current_block.place(board)
        current_block = next_block
        next_block = Block(*random.choice(SHAPES))

        # 消除满行
        for y in range(len(board)):
            if all(board[y]):
                board.pop(y)
                board.insert(0, [(0, 0, 0) for _ in range(PLAY_WIDTH // BLOCK_SIZE)])
                score += 10

    # 绘制游戏界面
    window.fill(PLAY_BG_COLOR)
    for y, row in enumerate(board):
        for x, color in enumerate(row):
            pygame.draw.rect(window, color, (PLAY_X + x * BLOCK_SIZE, PLAY_Y + y * BLOCK_SIZE, BLOCK_SIZE, BLOCK_SIZE))

    current_block.draw(window)

    # 绘制分数
    font = pygame.font.Font(None, 36)
    text = font.render("Score: " + str(score), True, (255, 255, 255))
    window.blit(text, (10, 10))

    # 绘制下一个方块
    font = pygame.font.Font(None, 24)
    text = font.render("Next:", True, (255, 255, 255))
    window.blit(text, (PLAY_X + PLAY_WIDTH + 20, PLAY_Y))
    next_block.draw(window)

    pygame.display.update()

    # 控制游戏帧率
    clock.tick(FPS)

该代码实现了一个简单的俄罗斯方块小游戏，包括方块的移动、旋转、落下、消除满行等基本操作，还有分数统计和下一个方块的预览功能。可以通过改变游戏窗口大小、方块大小、方块类型和颜色、游戏区域大小等参数来进行自定义修改。