python实现俄罗斯方块

可以使用 Pygame 库来实现俄罗斯方块，以下是示例代码：

import pygame
import random

# 定义方块大小
BLOCK_SIZE = 30

# 定义方块类型及其对应颜色
SHAPE_TYPES = {
    "I": (cyan, [(0, -1), (0, 0), (0, 1), (0, 2)]),
    "J": (blue, [(0, -1), (0, 0), (0, 1), (-1, 1)]),
    "L": (orange, [(0, -1), (0, 0), (0, 1), (1, 1)]),
    "O": (yellow, [(0, 0), (0, 1), (1, 0), (1, 1)]),
    "S": (green, [(0, 0), (0, 1), (-1, 0), (1, 1)]),
    "T": (purple, [(0, -1), (0, 0), (0, 1), (1, 0)]),
    "Z": (red, [(0, 0), (0, 1), (1, 0), (-1, 1)])
}

# 定义方块类
class Block:
    def __init__(self, shape, x, y):
        self.shape = shape
        self.color, self.coords = SHAPE_TYPES[shape]
        self.x = x
        self.y = y

    def move(self, dx, dy):
        self.x += dx
        self.y += dy

    def rotate(self):
        self.coords = [(-y, x) for x, y in self.coords]

    # 判断当前方块是否合法
    def is_valid(self, board):
        for x, y in self.coords:
            if (self.x + x < 0 or self.x + x >= len(board[0])
                or self.y + y < 0 or self.y + y >= len(board)):
                return False
            if board[self.y + y][self.x + x] != " ":
                return False
        return True

    # 将当前方块放入板子中
    def addToBoard(self, board):
        for x, y in self.coords:
            board[self.y + y][self.x + x] = self.color

# 定义游戏类
class Tetris:
    def __init__(self, width, height):
        self.width = width
        self.height = height
        self.screen = pygame.display.set_mode((width * BLOCK_SIZE, height * BLOCK_SIZE))
        self.clock = pygame.time.Clock()
        self.board = [[" " for _ in range(width)] for _ in range(height)]
        self.current_block = None
        self.next_block = None
        self.score = 0

    # 生成新方块
    def newBlock(self):
        self.current_block = self.next_block or Block(random.choice(list(SHAPE_TYPES.keys())), len(self.board[0]) // 2 - 2, 0)
        self.next_block = Block(random.choice(list(SHAPE_TYPES.keys())), len(self.board[0]) // 2 - 2, 0)

    # 清除已满行
    def clearFullRows(self):
        rows = [i for i, row in enumerate(self.board) if " " not in row]
        for row in sorted(rows, reverse=True):
            self.board.pop(row)
            self.board.insert(0, [" " for _ in range(len(self.board[0]))])
        self.score += len(rows) ** 2

    # 更新游戏状态
    def update(self):
        # 方块已经落下，将其加入到板子中
        if not self.current_block.is_valid(self.board):
            self.current_block.move(0, -1)
            self.current_block.addToBoard(self.board)
            self.clearFullRows()
            self.newBlock()

        # 画板子和方块
        self.screen.fill((0, 0, 0))
        for y, row in enumerate(self.board):
            for x, color in enumerate(row):
                pygame.draw.rect(self.screen, color, (x * BLOCK_SIZE, (self.height - y - 1) * BLOCK_SIZE, BLOCK_SIZE, BLOCK_SIZE))
        if self.current_block:
            for x, y in self.current_block.coords:
                pygame.draw.rect(self.screen, self.current_block.color, ((self.current_block.x + x) * BLOCK_SIZE, (self.height - self.current_block.y - y - 1) * BLOCK_SIZE, BLOCK_SIZE, BLOCK_SIZE))

        # 更新屏幕
        pygame.display.flip()

    # 运行游戏
    def run(self):
        while True:
            for event in pygame.event.get():
                if event.type == pygame.QUIT:
                    pygame.quit()
                    return
                elif event.type == pygame.KEYDOWN:
                    if event.key == pygame.K_LEFT:
                        self.current_block.move(-1, 0)
                        if not self.current_block.is_valid(self.board):
                            self.current_block.move(1, 0)
                    elif event.key == pygame.K_RIGHT:
                        self.current_block.move(1, 0)
                        if not self.current_block.is_valid(self.board):
                            self.current_block.move(-1, 0)
                    elif event.key == pygame.K_DOWN:
                        self.current_block.move(0, -1)
                        if not self.current_block.is_valid(self.board):
                            self.current_block.move(0, 1)
                    elif event.key == pygame.K_UP:
                        self.current_block.rotate()

            self.clock.tick(10)
            self.current_block.move(0, -1)
            self.update()

if __name__ == "__main__":
    pygame.init()
    pygame.display.set_caption("Tetris")
    tetris = Tetris(10, 20)
    tetris.newBlock()
    tetris.run()

请注意，此处使用了 Pygame 库，如果您没有安装该库需要先进行安装。