星辰秘典：探索Python项目的神秘力量——贪吃蛇

import pygame
import random

# 游戏界面尺寸
WIDTH = 800
HEIGHT = 600

# 蛇身和食物大小
SEGMENT_SIZE = 20

# 定义颜色
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
RED = (255, 0, 0)

# 初始化pygame模块
pygame.init()

# 创建游戏界面
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("贪吃蛇游戏")

# 定义蛇类
class Snake:
    def __init__(self):
        self.segments = [(WIDTH / 2, HEIGHT / 2)]
        self.dx = SEGMENT_SIZE
        self.dy = 0

    def move(self):
        x, y = self.segments[0]
        x += self.dx
        y += self.dy
        self.segments.insert(0, (x, y))
        self.segments.pop()

    def change_direction(self, dx, dy):
        self.dx = dx
        self.dy = dy

    def draw(self):
        for segment in self.segments:
            pygame.draw.rect(screen, WHITE, (segment[0], segment[1], SEGMENT_SIZE, SEGMENT_SIZE))

    def check_collision(self):
        head = self.segments[0]
        for segment in self.segments[1:]:
            if head[0] == segment[0] and head[1] == segment[1]:
                return True
        if head[0] < 0 or head[0] >= WIDTH or head[1] < 0 or head[1] >= HEIGHT:
            return True
        return False

    def eat_food(self, food):
        if self.segments[0][0] == food.x and self.segments[0][1] == food.y:
            self.segments.append((food.x, food.y))
            food.generate_position()
            return True  # 返回True表示蛇吃到了食物
        return False

# 定义食物类
class Food:
    def __init__(self):
        self.x = 0
        self.y = 0
        self.generate_position()

    def generate_position(self):
        self.x = random.randint(0, (WIDTH - SEGMENT_SIZE) // SEGMENT_SIZE) * SEGMENT_SIZE
        self.y = random.randint(0, (HEIGHT - SEGMENT_SIZE) // SEGMENT_SIZE) * SEGMENT_SIZE

    def draw(self):
        pygame.draw.rect(screen, RED, (self.x, self.y, SEGMENT_SIZE, SEGMENT_SIZE))

# 创建蛇和食物对象
snake = Snake()
food = Food()

# 计分变量
score = 0

# 游戏状态变量
game_over = False

# 游戏主循环
running = True
clock = pygame.time.Clock()

while running:
    while game_over:
        screen.fill(BLACK)
        font = pygame.font.Font(None, 36)
        text = font.render("Game Over! Score: " + str(score), True, WHITE)
        screen.blit(text, (WIDTH / 2 - text.get_width() / 2, HEIGHT / 2 - text.get_height() / 2))
        restart_text = font.render("Press R to restart or Q to quit", True, WHITE)
        screen.blit(restart_text, (WIDTH / 2 - restart_text.get_width() / 2, HEIGHT / 2 + text.get_height()))
        pygame.display.flip()

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False
                game_over = False
            elif event.type == pygame.KEYDOWN:
                if event.key == pygame.K_r:
                    game_over = False
                    snake = Snake()
                    food = Food()
                    score = 0
                elif event.key == pygame.K_q:
                    running = False
                    game_over = False

    if not running:
        break

    clock.tick(10)  # 控制游戏速度

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP and snake.dy != SEGMENT_SIZE:  # 防止向下移动时按上键
                snake.change_direction(0, -SEGMENT_SIZE)
            elif event.key == pygame.K_DOWN and snake.dy != -SEGMENT_SIZE:  # 防止向上移动时按下键
                snake.change_direction(0, SEGMENT_SIZE)
            elif event.key == pygame.K_LEFT and snake.dx != SEGMENT_SIZE:  # 防止向右移动时按左键
                snake.change_direction(-SEGMENT_SIZE, 0)
            elif event.key == pygame.K_RIGHT and snake.dx != -SEGMENT_SIZE:  # 防止向左移动时按右键
                snake.change_direction(SEGMENT_SIZE, 0)

    snake.move()

    if snake.check_collision():
        game_over = True

    if snake.eat_food(food):
        score += 1

    screen.fill(BLACK)
    snake.draw()
    food.draw()

    # 显示得分
    font = pygame.font.Font(None, 36)
    text = font.render("Score: " + str(score), True, WHITE)
    screen.blit(text, (10, 10))

    pygame.display.flip()

# 退出游戏
pygame.quit()

pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple