Snake

import pygame
import random

# 初始化 Pygame
pygame.init()

# 游戏窗口的大小
WINDOW_WIDTH = 600
WINDOW_HEIGHT = 600

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

# 创建游戏窗口
screen = pygame.display.set_mode((WINDOW_WIDTH, WINDOW_HEIGHT))
pygame.display.set_caption('Snake Game')

# 定义贪吃蛇的初始位置、大小和速度
SNAKE_SIZE = 10
SNAKE_SPEED = 15
snake_pos = [300, 300]
snake_body = [[300, 300], [290, 300], [280, 300]]
direction = "RIGHT"

# 定义食物的初始位置
food_pos = [random.randrange(1, (WINDOW_WIDTH//10)) * 10, 
            random.randrange(1, (WINDOW_HEIGHT//10)) * 10]

# 绘制贪吃蛇和食物的函数
def draw_snake(snake_body):
    for pos in snake_body:
        pygame.draw.rect(screen, WHITE, pygame.Rect(pos[0], pos[1], SNAKE_SIZE, SNAKE_SIZE))

def draw_food(food_pos):
    pygame.draw.rect(screen, GREEN, pygame.Rect(food_pos[0], food_pos[1], SNAKE_SIZE, SNAKE_SIZE))

# 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_UP and direction != "DOWN":
                direction = "UP"
            elif event.key == pygame.K_DOWN and direction != "UP":
                direction = "DOWN"
            elif event.key == pygame.K_LEFT and direction != "RIGHT":
                direction = "LEFT"
            elif event.key == pygame.K_RIGHT and direction != "LEFT":
                direction = "RIGHT"

    # 移动贪吃蛇
    if direction == "UP":
        snake_pos[1] -= SNAKE_SIZE
    elif direction == "DOWN":
        snake_pos[1] += SNAKE_SIZE
    elif direction == "LEFT":
        snake_pos[0] -= SNAKE_SIZE
    elif direction == "RIGHT":
        snake_pos[0] += SNAKE_SIZE

    # 更新贪吃蛇的身体
    snake_body.insert(0, list(snake_pos))
    if snake_pos == food_pos:
        food_pos = [random.randrange(1, (WINDOW_WIDTH//10)) * 10, 
                    random.randrange(1, (WINDOW_HEIGHT//10)) * 10]
    else:
        snake_body.pop()

    # 绘制游戏界面
    screen.fill(BLACK)
    draw_snake(snake_body)
    draw_food(food_pos)
    pygame.display.update()

    # 判断游戏结束
    if snake_pos[0] < 0 or snake_pos[0] > WINDOW_WIDTH-SNAKE_SIZE:
        pygame.quit()
        quit()
    elif snake_pos[1] < 0 or snake_pos[    pygame.quit()
    quit()
for block in snake_body[1:]:
    if snake_pos == block:
        pygame.quit()
        quit()

# 控制游戏速度
pygame.time.Clock().tick(SNAKE_SPEED)