基于python开发的贪食蛇（源码）

# coding:utf-8 # author:frank # date:2024/12/25 # 导入必要的库 import pygame import random # 初始化pygame pygame.init() # 定义颜色 WHITE = (255, 255, 255) BLACK = (0, 0, 0) RED = (255, 0, 0) GREEN = (0, 255, 0) BLUE = (0, 0, 255) # 设置屏幕大小 SCREEN_WIDTH = 800 SCREEN_HEIGHT = 600 # 创建屏幕 screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT)) pygame.display.set_caption("贪吃蛇") # 定义蛇的初始位置和大小 snake_block_size = 10 snake_speed = 15 snake_list = [] snake_length = 1 snake_x = SCREEN_WIDTH / 2 snake_y = SCREEN_HEIGHT / 2 # 定义食物的初始位置和大小 food_block_size = 10 food_x = round(random.randrange(0, SCREEN_WIDTH - food_block_size) / 10.0) * 10.0 food_y = round(random.randrange(0, SCREEN_HEIGHT - food_block_size) / 10.0) * 10.0 # 定义字体 font_style = pygame.font.SysFont(None, 50) # 定义分数 score = 0 # 定义游戏结束函数 def game_over(): message = font_style.render("游戏结束", True, RED) screen.blit(message, [SCREEN_WIDTH / 3, SCREEN_HEIGHT / 3]) pygame.display.update() pygame.time.delay(2000) snake_x_change =0 snake_y_change =0 # 游戏循环 game_over_flag = False while not game_over_flag: for event in pygame.event.get(): if event.type == pygame.QUIT: game_over_flag = True # 控制蛇的移动 if event.type == pygame.KEYDOWN: if event.key == pygame.K_LEFT: snake_x_change = -snake_block_size snake_y_change = 0 elif event.key == pygame.K_RIGHT: snake_x_change = snake_block_size snake_y_change = 0 elif event.key == pygame.K_UP: snake_y_change = -snake_block_size snake_x_change = 0 elif event.key == pygame.K_DOWN: snake_y_change = snake_block_size snake_x_change = 0 # 控制蛇的移动 snake_x += snake_x_change snake_y += snake_y_change # 判断蛇是否吃到食物 if snake_x == food_x and snake_y == food_y: food_x = round(random.randrange(0, SCREEN_WIDTH - food_block_size) / 10.0) * 10.0 food_y = round(random.randrange(0, SCREEN_HEIGHT - food_block_size) / 10.0) * 10.0 snake_length += 1 score += 10 # 绘制食物 pygame.draw.rect(screen, GREEN, [food_x, food_y, food_block_size, food_block_size]) # 绘制蛇 snake_head = [] snake_head.append(snake_x) snake_head.append(snake_y) snake_list.append(snake_head) if len(snake_list) > snake_length: del snake_list[0] for x in snake_list[:-1]: if x == snake_head: game_over_flag = True for x in snake_list: pygame.draw.rect(screen, BLUE, [x[0], x[1], snake_block_size, snake_block_size]) # 绘制分数 score_message = font_style.render("分数: " + str(score), True, BLACK) screen.blit(score_message, [0, 0]) # 更新屏幕 pygame.display.update() # 判断蛇是否撞墙 if snake_x >= SCREEN_WIDTH or snake_x < 0 or snake_y >= SCREEN_HEIGHT or snake_y < 0: game_over_flag = True # 控制游戏速度 pygame.time.delay(snake_speed) # 结束pygame pygame.quit()