# racing_game.py import pygame import math import sys # 用于退出 # --- 颜色定义 (在每个模块中定义，或从共享文件导入) --- WHITE = (255, 255, 255) BLACK = (0, 0, 0) RED = (255, 0, 0) GREEN = (0, 255, 0) # 草地 BLUE = (0, 0, 255) # 赛车 YELLOW = (255, 255, 0) GRAY = (100, 100, 100) # 墙壁 DARK_GRAY = (50, 50, 50) # 赛道 # --- 字体设置 (在每个模块中定义，或从共享文件导入) --- pygame.font.init() # 确保字体模块已初始化 font = pygame.font.Font(None, 74) # 大字体 small_font = pygame.font.Font(None, 36) # 小字体 # --- 赛车游戏变量 (全局，但仅在此模块内使用) --- car_width = 30 car_height = 50 car_x, car_y = 0, 0 # 运行时根据屏幕大小初始化 car_speed = 0 car_angle = 90 # 初始朝上 (0度是右，90度是上) car_max_speed = 5 car_acceleration = 0.1 car_friction = 0.05 car_turn_speed = 3 racing_game_over = False # 赛道墙壁 (使用Rect对象定义) # 这是一个简单的U形赛道 track_walls = [] # 运行时根据屏幕大小计算 # --- 辅助函数：绘制文本 (在此模块中定义) --- def draw_text(screen, text, font_obj, color, x, y, center=False): text_surface = font_obj.render(text, True, color) if center: text_rect = text_surface.get_rect(center=(x, y)) screen.blit(text_surface, text_rect) else: screen.blit(text_surface, (x, y)) def reset_racing_game(screen_width, screen_height): global car_x, car_y, car_speed, car_angle, racing_game_over, track_walls car_x, car_y = screen_width // 2, screen_height - 100 car_speed = 0 car_angle = 90 racing_game_over = False # 动态调整赛道墙壁以适应屏幕大小 track_walls = [ # 外墙 pygame.Rect(screen_width * 0.0625, screen_height * 0.0833, screen_width * 0.875, screen_height * 0.0333), # 上 (50, 50, 700, 20) pygame.Rect(screen_width * 0.0625, screen_height * 0.0833, screen_width * 0.025, screen_height * 0.8333), # 左 (50, 50, 20, 500) pygame.Rect(screen_width * 0.9125, screen_height * 0.0833, screen_width * 0.025, screen_height * 0.8333), # 右 (730, 50, 20, 500) pygame.Rect(screen_width * 0.0625, screen_height * 0.8833, screen_width * 0.875, screen_height * 0.0333), # 下 (50, 530, 700, 20) # 内墙 pygame.Rect(screen_width * 0.1875, screen_height * 0.25, screen_width * 0.625, screen_height * 0.0333), # 内上 (150, 150, 500, 20) pygame.Rect(screen_width * 0.1875, screen_height * 0.25, screen_width * 0.025, screen_height * 0.5), # 内左 (150, 150, 20, 300) pygame.Rect(screen_width * 0.7875, screen_height * 0.25, screen_width * 0.025, screen_height * 0.5), # 内右 (630, 150, 20, 300) pygame.Rect(screen_width * 0.1875, screen_height * 0.7167, screen_width * 0.625, screen_height * 0.0333), # 内下 (150, 430, 500, 20) ] def draw_racing_game(screen, screen_width, screen_height): screen.fill(GREEN) # 草地背景 # 绘制赛道 for wall in track_walls: pygame.draw.rect(screen, GRAY, wall) # 墙壁 # 绘制赛道中间区域（路面） pygame.draw.rect(screen, DARK_GRAY, (screen_width * 0.0875, screen_height * 0.1167, screen_width * 0.825, screen_height * 0.7667)) # 外层路面 (70, 70, 660, 460) pygame.draw.rect(screen, GREEN, (screen_width * 0.2125, screen_height * 0.2833, screen_width * 0.575, screen_height * 0.4667)) # 内层草地 (170, 170, 460, 280) # 绘制起点线 pygame.draw.line(screen, WHITE, (car_x - 50, car_y + car_height // 2), (car_x + 50, car_y + car_height // 2), 5) # 绘制赛车 car_surface = pygame.Surface((car_width, car_height), pygame.SRCALPHA) car_surface.fill(BLUE) # 赛车颜色 # 绘制车顶 pygame.draw.rect(car_surface, RED, (car_width // 4, car_height // 4, car_width // 2, car_height // 2)) rotated_car = pygame.transform.rotate(car_surface, car_angle) car_rect = rotated_car.get_rect(center=(car_x, car_y)) screen.blit(rotated_car, car_rect) if racing_game_over: draw_text(screen, "撞车了！", font, RED, screen_width // 2, screen_height // 2 - 50, center=True) draw_text(screen, "按 'R' 重新开始，'Esc' 返回菜单", small_font, WHITE, screen_width // 2, screen_height // 2 + 20, center=True) def update_racing_game(keys, screen_width, screen_height): global car_x, car_y, car_speed, car_angle, racing_game_over if racing_game_over: return # --- 移动控制 --- if keys[pygame.K_UP]: car_speed = min(car_speed + car_acceleration, car_max_speed) elif keys[pygame.K_DOWN]: car_speed = max(car_speed - car_acceleration * 2, -car_max_speed / 2) # 倒车速度减半 else: # 摩擦力减速 if car_speed > 0: car_speed = max(0, car_speed - car_friction) elif car_speed < 0: car_speed = min(0, car_speed + car_friction) # 转向 (只有在移动时才能转向) if abs(car_speed) > 0.1: # 只有当车有一定速度时才能转向 if keys[pygame.K_LEFT]: car_angle += car_turn_speed * (1 if car_speed > 0 else -1) # 倒车时转向相反 if keys[pygame.K_RIGHT]: car_angle -= car_turn_speed * (1 if car_speed > 0 else -1) # 倒车时转向相反 # 更新位置 rad_angle = math.radians(car_angle) car_x += car_speed * math.cos(rad_angle) car_y -= car_speed * math.sin(rad_angle) # Pygame的Y轴向下递增 # --- 碰撞检测 --- # 创建一个代表赛车当前位置和大小的矩形 # 注意: pygame.transform.rotate 会改变矩形大小，这里为了简化碰撞检测， # 我们用一个非旋转的矩形来近似碰撞。更精确的碰撞需要更复杂的几何计算。 car_collision_rect = pygame.Rect(car_x - car_width // 2, car_y - car_height // 2, car_width, car_height) for wall in track_walls: if car_collision_rect.colliderect(wall): racing_game_over = True car_speed = 0 # 撞墙后停止 break # 只要撞到一个墙就停止 # --- 赛车游戏主循环函数 --- def run_racing_game(screen): # 获取屏幕尺寸 screen_width, screen_height = screen.get_size() reset_racing_game(screen_width, screen_height) clock = pygame.time.Clock() FPS = 60 game_running = True while game_running: for event in pygame.event.get(): if event.type == pygame.QUIT: pygame.quit() sys.exit() if event.type == pygame.KEYDOWN: if event.key == pygame.K_r and racing_game_over: # 重新开始 reset_racing_game(screen_width, screen_height) if event.key == pygame.K_ESCAPE: # 返回菜单 game_running = False # 退出当前游戏循环 keys = pygame.key.get_pressed() # 获取所有按键状态，用于持续按压 update_racing_game(keys, screen_width, screen_height) draw_racing_game(screen, screen_width, screen_height) pygame.display.flip() clock.tick(FPS) # 如果单独运行此文件进行测试 if __name__ == "__main__": pygame.init() test_screen = pygame.display.set_mode((800, 600)) pygame.display.set_caption("赛车游戏测试") run_racing_game(test_screen) pygame.quit()