### Python 实现贪吃蛇游戏完整代码示例 以下是完整的 Python 贪吃蛇游戏代码，该代码实现了基本的游戏逻辑并允许玩家控制蛇的移动： ```python import pygame import time import random # 初始化 Pygame pygame.init() # 定义颜色 WHITE = (255, 255, 255) BLACK = (0, 0, 0) RED = (213, 50, 80) GREEN = (0, 255, 0) # 设置屏幕尺寸 SCREEN_WIDTH = 600 SCREEN_HEIGHT = 400 GRID_SIZE = 20 screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT)) pygame.display.set_caption('Snake Game') clock = pygame.time.Clock() snake_speed = 15 def gameLoop(): game_over = False game_close = False x1 = SCREEN_WIDTH / 2 y1 = SCREEN_HEIGHT / 2 x1_change = 0 y1_change = 0 snake_List = [] Length_of_snake = 1 foodx = round(random.randrange(0, SCREEN_WIDTH - GRID_SIZE) / GRID_SIZE) * GRID_SIZE foody = round(random.randrange(0, SCREEN_HEIGHT - GRID_SIZE) / GRID_SIZE) * GRID_SIZE while not game_over: while game_close == True: screen.fill(BLACK) font_style = pygame.font.SysFont(None, 50) msg = font_style.render("You Lost! Press Q-Quit or C-Play Again", True, RED) screen.blit(msg, [SCREEN_WIDTH / 6, SCREEN_HEIGHT / 3]) pygame.display.update() for event in pygame.event.get(): if event.type == pygame.KEYDOWN: if event.key == pygame.K_q: game_over = True game_close = False if event.key == pygame.K_c: gameLoop() for event in pygame.event.get(): if event.type == pygame.QUIT: game_over = True if event.type == pygame.KEYDOWN: if event.key == pygame.K_LEFT: x1_change = -GRID_SIZE y1_change = 0 elif event.key == pygame.K_RIGHT: x1_change = GRID_SIZE y1_change = 0 elif event.key == pygame.K_UP: y1_change = -GRID_SIZE x1_change = 0 elif event.key == pygame.K_DOWN: y1_change = GRID_SIZE x1_change = 0 if x1 >= SCREEN_WIDTH or x1 < 0 or y1 >= SCREEN_HEIGHT or y1 < 0: game_close = True x1 += x1_change y1 += y1_change screen.fill(BLACK) pygame.draw.rect(screen, GREEN, [foodx, foody, GRID_SIZE, GRID_SIZE]) snake_Head = [] snake_Head.append(x1) snake_Head.append(y1) snake_List.append(snake_Head) if len(snake_List) > Length_of_snake: del snake_List[0] for x in snake_List[:-1]: if x == snake_Head: game_close = True draw_snake(snake_List) update_score(Length_of_snake - 1) pygame.display.update() if x1 == foodx and y1 == foody: foodx = round(random.randrange(0, SCREEN_WIDTH - GRID_SIZE) / GRID_SIZE) * GRID_SIZE foody = round(random.randrange(0, SCREEN_HEIGHT - GRID_SIZE) / GRID_SIZE) * GRID_SIZE Length_of_snake += 1 clock.tick(snake_speed) pygame.quit() def draw_snake(snake_list): for segment in snake_list: pygame.draw.rect(screen, WHITE, [segment[0], segment[1], GRID_SIZE, GRID_SIZE]) def update_score(score): score_font = pygame.font.SysFont(None, 35) value = score_font.render(f'Score: {score}', True, WHITE) screen.blit(value, [0, 0]) if __name__ == "__main__": gameLoop() ``` 上述代码展示了如何使用 `Pygame` 库创建一个简单的贪吃蛇游戏[^2]。 游戏中包含了绘制蛇体、检测碰撞以及更新分数等功能。