import pygame import sys import random import time # 初始化pygame pygame.init() # 游戏窗口设置 SCREEN_WIDTH = 600 SCREEN_HEIGHT = 600 screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT)) pygame.display.set_caption("贪吃蛇游戏") clock = pygame.time.Clock() FPS = 10 # 颜色定义 BLACK = (0, 0, 0) WHITE = (255, 255, 255) GREEN = (0, 255, 0) RED = (255, 0, 0) BLUE = (0, 120, 255) DARK_GREEN = (0, 180, 0) GRAY = (100, 100, 100) YELLOW = (255, 255, 0) ORANGE = (255, 165, 0) # 游戏配置 GRID_SIZE = 20 GRID_WIDTH = SCREEN_WIDTH // GRID_SIZE GRID_HEIGHT = SCREEN_HEIGHT // GRID_SIZE # 方向 UP = (0, -1) DOWN = (0, 1) LEFT = (-1, 0) RIGHT = (1, 0) # 创建字体 try: # 修复字体加载，使用None或系统字体 font_large = pygame.font.Font(None, 48) font_medium = pygame.font.Font(None, 36) font_small = pygame.font.Font(None, 24) except: # 如果上面的方法失败，使用系统字体 font_large = pygame.font.SysFont(None, 48) font_medium = pygame.font.SysFont(None, 36) font_small = pygame.font.SysFont(None, 24) # 蛇类 class Snake: def __init__(self): self.reset() def reset(self): self.length = 3 self.positions = [(GRID_WIDTH // 2, GRID_HEIGHT // 2)] self.direction = RIGHT self.score = 0 self.grow_to = 3 def get_head_position(self): return self.positions[0] def turn(self, point): if self.length > 1 and (point[0] * -1, point[1] * -1) == self.direction: return else: self.direction = point def move(self): head = self.get_head_position() x, y = self.direction new_x = (head[0] + x) % GRID_WIDTH new_y = (head[1] + y) % GRID_HEIGHT new_position = (new_x, new_y) # 检查是否撞到自己 if new_position in self.positions[1:]: return False self.positions.insert(0, new_position) if len(self.positions) > self.grow_to: self.positions.pop() return True def grow(self): self.grow_to += 1 self.score += 10 def draw(self, surface): for i, p in enumerate(self.positions): rect = pygame.Rect((p[0] * GRID_SIZE, p[1] * GRID_SIZE), (GRID_SIZE, GRID_SIZE)) if i == 0: # 蛇头 pygame.draw.rect(surface, GREEN, rect) pygame.draw.rect(surface, DARK_GREEN, rect, 1) # 绘制眼睛 if self.direction == RIGHT: eye_rect1 = pygame.Rect((p[0] * GRID_SIZE + GRID_SIZE - 6, p[1] * GRID_SIZE + 5), (3, 3)) eye_rect2 = pygame.Rect((p[0] * GRID_SIZE + GRID_SIZE - 6, p[1] * GRID_SIZE + GRID_SIZE - 8), (3, 3)) elif self.direction == LEFT: eye_rect1 = pygame.Rect((p[0] * GRID_SIZE + 3, p[1] * GRID_SIZE + 5), (3, 3)) eye_rect2 = pygame.Rect((p[0] * GRID_SIZE + 3, p[1] * GRID_SIZE + GRID_SIZE - 8), (3, 3)) elif self.direction == UP: eye_rect1 = pygame.Rect((p[0] * GRID_SIZE + 5, p[1] * GRID_SIZE + 3), (3, 3)) eye_rect2 = pygame.Rect((p[0] * GRID_SIZE + GRID_SIZE - 8, p[1] * GRID_SIZE + 3), (3, 3)) else: # DOWN eye_rect1 = pygame.Rect((p[0] * GRID_SIZE + 5, p[1] * GRID_SIZE + GRID_SIZE - 6), (3, 3)) eye_rect2 = pygame.Rect((p[0] * GRID_SIZE + GRID_SIZE - 8, p[1] * GRID_SIZE + GRID_SIZE - 6), (3, 3)) pygame.draw.rect(surface, BLACK, eye_rect1) pygame.draw.rect(surface, BLACK, eye_rect2) else: # 蛇身 color_factor = 1.0 - (i / len(self.positions) * 0.3) body_color = ( int(GREEN[0] * color_factor), int(GREEN[1] * color_factor), int(GREEN[2] * color_factor) ) pygame.draw.rect(surface, body_color, rect) pygame.draw.rect(surface, DARK_GREEN, rect, 1) # 食物类 class Food: def __init__(self): self.position = (0, 0) self.color = RED self.randomize_position() def randomize_position(self): self.position = (random.randint(0, GRID_WIDTH - 1), random.randint(0, GRID_HEIGHT - 1)) def draw(self, surface): rect = pygame.Rect((self.position[0] * GRID_SIZE, self.position[1] * GRID_SIZE), (GRID_SIZE, GRID_SIZE)) pygame.draw.rect(surface, self.color, rect) pygame.draw.rect(surface, WHITE, rect, 1) # 绘制食物内部的装饰 inner_rect = pygame.Rect( self.position[0] * GRID_SIZE + 4, self.position[1] * GRID_SIZE + 4, GRID_SIZE - 8, GRID_SIZE - 8 ) pygame.draw.rect(surface, (255, 200, 200), inner_rect) # 游戏主类 class Game: def __init__(self): self.snake = Snake() self.food = Food() self.game_over = False self.paused = False self.high_score = 0 def update(self): if self.game_over or self.paused: return if not self.snake.move(): self.game_over = True if self.snake.score > self.high_score: self.high_score = self.snake.score return # 检查是否吃到食物 if self.snake.get_head_position() == self.food.position: self.snake.grow() self.food.randomize_position() # 确保食物不出现在蛇身上 while self.food.position in self.snake.positions: self.food.randomize_position() def draw(self, surface): surface.fill(BLACK) # 绘制网格 for x in range(0, SCREEN_WIDTH, GRID_SIZE): pygame.draw.line(surface, GRAY, (x, 0), (x, SCREEN_HEIGHT)) for y in range(0, SCREEN_HEIGHT, GRID_SIZE): pygame.draw.line(surface, GRAY, (0, y), (SCREEN_WIDTH, y)) # 绘制食物 self.food.draw(surface) # 绘制蛇 self.snake.draw(surface) # 绘制分数 score_text = font_medium.render(f"分数: {self.snake.score}", True, WHITE) high_score_text = font_small.render(f"最高分: {self.high_score}", True, GRAY) length_text = font_small.render(f"长度: {len(self.snake.positions)}", True, GREEN) surface.blit(score_text, (10, 10)) surface.blit(high_score_text, (10, 50)) surface.blit(length_text, (SCREEN_WIDTH - 100, 10)) # 绘制控制提示 if self.paused: pause_text = font_small.render("游戏已暂停 (P键继续)", True, YELLOW) surface.blit(pause_text, (SCREEN_WIDTH // 2 - pause_text.get_width() // 2, 10)) else: pause_text = font_small.render("P键暂停", True, GRAY) surface.blit(pause_text, (SCREEN_WIDTH // 2 - pause_text.get_width() // 2, 10)) # 绘制游戏结束信息 if self.game_over: overlay = pygame.Surface((SCREEN_WIDTH, SCREEN_HEIGHT)) overlay.set_alpha(128) overlay.fill(BLACK) surface.blit(overlay, (0, 0)) game_over_text = font_large.render("游戏结束!", True, RED) final_score_text = font_medium.render(f"最终分数: {self.snake.score}", True, YELLOW) restart_text = font_small.render("按R键重新开始，ESC键退出", True, WHITE) surface.blit(game_over_text, (SCREEN_WIDTH // 2 - game_over_text.get_width() // 2, SCREEN_HEIGHT // 2 - 60)) surface.blit(final_score_text, (SCREEN_WIDTH // 2 - final_score_text.get_width() // 2, SCREEN_HEIGHT // 2)) surface.blit(restart_text, (SCREEN_WIDTH // 2 - restart_text.get_width() // 2, SCREEN_HEIGHT // 2 + 50)) def handle_keys(self): for event in pygame.event.get(): if event.type == pygame.QUIT: pygame.quit() sys.exit() elif event.type == pygame.KEYDOWN: if event.key == pygame.K_ESCAPE: pygame.quit() sys.exit() elif event.key == pygame.K_p: self.paused = not self.paused elif event.key == pygame.K_r and self.game_over: self.__init__() # 重置游戏 elif not self.paused and not self.game_over: if event.key == pygame.K_UP: self.snake.turn(UP) elif event.key == pygame.K_DOWN: self.snake.turn(DOWN) elif event.key == pygame.K_LEFT: self.snake.turn(LEFT) elif event.key == pygame.K_RIGHT: self.snake.turn(RIGHT) # 主函数 def main(): game = Game() while True: game.handle_keys() game.update() game.draw(screen) pygame.display.update() if game.paused or game.game_over: clock.tick(5) # 暂停或游戏结束时降低帧率 else: clock.tick(FPS) if __name__ == "__main__": main()