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介绍 这是一个经典的贪吃蛇游戏，通过 Pygame 库实现。玩家控制蛇在屏幕上移动，吃掉食物以增长蛇的长度，同时避免撞到墙壁或蛇身。游戏包含主菜单、得分显示和重玩功能。
玩法 启动游戏：运行 snake_game.py 文件，打开游戏界面。 主菜单： 使用上下方向键选择菜单项。 按回车键确认选择。 菜单选项包括开始游戏、继续游戏、暂停游戏和结束游戏。 控制蛇： 使用方向键（上下左右）控制蛇的移动方向。 吃掉红色方块（食物）以增加长度和得分。 游戏重启： 当蛇撞到墙壁或自身时，游戏结束。 按空格键重新开始游戏。 游戏目标 尽可能吃掉更多食物，获得更高的得分。 避免撞到墙壁或自身，使蛇尽量长时间存活。 代码 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 import pygame import random WIDTH = 600 HEIGHT = 600 class Snake: def __init__(self, screen): self.screen = screen self.body = [] self.fx = pygame.K_RIGHT self.init_body() def init_body(self, length=5): left, top = (100, 100) for i in range(length): if self.body: left, top = self.body[0].left, self.body[0].top node = pygame.Rect(left + 20, top, 20, 20) else: node = pygame.Rect(left, top, 20, 20) self.body.insert(0, node) def draw_snake(self): for n in self.body: pygame.draw.rect(self.screen, (62, 122, 178), n, 0) def add_node(self): if self.body: left, top = self.body[0].left, self.body[0].top if self.fx == pygame.K_RIGHT: left += 20 elif self.fx == pygame.K_LEFT: left -= 20 elif self.fx == pygame.K_UP: top -= 20 else: top += 20 node = pygame.Rect(left, top, 20, 20) self.body.insert(0, node) def del_node(self): self.body.pop() def move(self): self.del_node() self.add_node() def change(self, fx): LR = [pygame.K_LEFT, pygame.K_RIGHT] UD = [pygame.K_UP, pygame.K_DOWN] if fx in LR + UD: if fx in LR and self.fx in LR: return if fx in UD and self.fx in UD: return self.fx = fx def is_dead(self): if self.body[0].left not in range(WIDTH): return True if self.body[0].top not in range(HEIGHT): return True if self.body[0] in self.body[1:]: return True class Food: def __init__(self): self.node = pygame.Rect(60, 80, 20, 20) self.flag = False def set(self): all_x_point = range(20, WIDTH - 20, 20) all_y_point = range(20, HEIGHT - 20, 20) left = random.choice(all_x_point) top = random.choice(all_y_point) self.node = pygame.Rect(left, top, 20, 20) self.flag = False def reset(self): self.flag = True def show_text(screen, pos, text, color, font_size=20): cur_font = pygame.font.SysFont('SimHei', font_size) text_fmt = cur_font.render(text, 1, color) screen.blit(text_fmt, pos) def show_score(screen, score, high_score): score_text = f'得分: {score} 最高分: {high_score}' show_text(screen, (WIDTH - 280, 30), score_text, (0, 0, 0)) def main_menu(screen): menu_font = pygame.font.SysFont('SimHei', 40) menu_options = ['开始游戏', '继续游戏', '暂停游戏', '结束游戏'] selected_option = 0 while True: screen.fill((255, 255, 255)) # 绘制标题 title_text = menu_font.render('贪吃蛇', True, (0, 0, 0)) title_rect = title_text.get_rect(center=(WIDTH // 2, 100)) screen.blit(title_text, title_rect) # 绘制菜单选项 for i, option in enumerate(menu_options): if i == selected_option: color = (0, 255, 0) # 选中的菜单项为绿色 else: color = (0, 0, 0) # 其他菜单项为黑色 option_text = menu_font.render(option, True, color) option_rect = option_text.get_rect(center=(WIDTH // 2, 200 + i * 60)) screen.blit(option_text, option_rect) # 处理用户输入 for event in pygame.event.get(): if event.type == pygame.QUIT: pygame.quit() return elif event.type == pygame.KEYDOWN: if event.key == pygame.K_UP: selected_option = (selected_option - 1) % len(menu_options) elif event.key == pygame.K_DOWN: selected_option = (selected_option + 1) % len(menu_options) elif event.key == pygame.K_RETURN: return selected_option pygame.display.flip() def main(): pygame.init() screen = pygame.display.set_mode([WIDTH, HEIGHT]) pygame.display.set_caption("贪吃蛇") # 显示主菜单界面 selected_option = main_menu(screen) # 根据选择的菜单项执行相应的操作 if selected_option == 0: # 开始游戏 score = 0 high_score = 0 sk = Snake(screen) fd = Food() dead = False # 读取历史最高分 try: with open('high_score.txt', 'r') as file: high_score = int(file.read()) except FileNotFoundError: pass clock = pygame.time.Clock() while True: for e in pygame.event.get(): if e.type == pygame.QUIT: pygame.quit() return if e.type == pygame.KEYDOWN: if not dead: sk.change(e.key) if e.key == pygame.K_SPACE: score = 0 sk = Snake(screen) fd = Food() dead = False screen.fill((255, 255, 255)) sk.draw_snake() if not dead: sk.move() if sk.is_dead(): show_text(screen, (140, 160), '我一定会回来的', (202, 92, 85), 30) show_text(screen, (180, 320), '按 空格 重新开始', (116, 181, 103), 20) dead = True # 更新最高分 if score > high_score: high_score = score with open('high_score.txt', 'w') as file: file.write(str(high_score)) if fd.flag: fd.set() pygame.draw.rect(screen, (255, 0, 0), fd.node, 0) if sk.body[0].colliderect(fd.node): score += 1 sk.add_node() fd.reset() show_score(screen, score, high_score) pygame.display.update() clock.tick(10) elif selected_option == 1: # 继续游戏 # 继续之前的游戏 pass elif selected_option == 2: # 暂停游戏 # 实现暂停游戏的功能 pass elif selected_option == 3: # 结束游戏 pygame.quit() return if __name__ == '__main__': main()