pygame小游戏贪吃蛇源代码

pygame是一个流行的Python库，用于创建2D游戏，其中包括著名的贪吃蛇游戏。编写一个基本的贪吃蛇游戏的源代码可能会包含以下几个主要部分：

1. **导入模块**:

import pygame
import sys

2. **初始化pygame**:

pygame.init()
screen = pygame.display.set_mode((800, 600))
pygame.display.set_caption("贪吃蛇")
clock = pygame.time.Clock()

3. **定义贪吃蛇类 (Snake)**:

class Snake:
    def __init__(self):
        self.body = [[100, 100], [90, 100], [80, 100]]  # 初始位置和长度
        self.direction = [0, 1]  # 默认向右移动

    def move(self):
        new_head = [self.body + self.direction, self.body + self.direction]
        self.body.insert(0, new_head)  # 在头部添加新位置
        if new_head in self.body[1:]:
            game_over = True  # 如果头撞到身体，则游戏结束
        else:
            self.body.pop()  # 移除蛇尾
        return not game_over

4. **绘制贪吃蛇和食物（Food）**:

def draw_snake(screen, snake):
    for pos in snake.body:
        pygame.draw.rect(screen, (0, 255, 0), pygame.Rect(pos, pos, 10, 10))

def place_food(snake):
    while True:
        food_pos = [random.randint(0, screen.get_width() // 10) * 10, random.randint(0, screen.get_height() // 10) * 10]
        if food_pos not in snake.body:
            break
    return food_pos

5. **主游戏循环**:

snake = Snake()
food_pos = place_food(snake)

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()

    keys_pressed = pygame.key.get_pressed()
    if keys_pressed[pygame.K_UP] and snake.direction != [0, -1]:
        snake.direction = [-1, 0]
    elif keys_pressed[pygame.K_DOWN] and snake.direction != [0, 1]:
        snake.direction = [1, 0]
    elif keys_pressed[pygame.K_LEFT] and snake.direction != [1, 0]:
        snake.direction = [0, 1]
    elif keys_pressed[pygame.K_RIGHT] and snake.direction != [-1, 0]:
        snake.direction = [0, -1]

    snake.move()
    screen.fill((0, 0, 0))  # 清屏
    draw_snake(screen, snake)
    draw_rect(screen, food_pos, (255, 0, 0))  # 绘制食物
    pygame.display.flip()
    clock.tick(10)  # 控制帧率

完整代码会包括更多的细节，如碰撞检测、得分计算等。如果你想深入了解整个源代码，请查阅相关的pygame教程或搜索在线示例。