258 lines
8.9 KiB
Python
258 lines
8.9 KiB
Python
import os
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import random
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import pygame
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from src.config.color import Color
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from src.config.game_config import data_path, GameConfig
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from src.scenes.base_scene import BaseScene
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class MainMenuScene(BaseScene):
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name = "MainMenuScene"
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"""
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主菜单场景，显示提示信息，展示雨天特效
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"""
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def __init__(self, screen):
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"""
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初始化函数，初始化按钮按下状态、雨滴列表
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"""
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super().__init__(screen)
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self.button_status = False
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self.mouse_status = None
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self.mouse_last_status = None
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self.debug_status = True
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self.secret_keys = ["w","w","s","s","a","d","a","d"] # 上上下下左右左右
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self.secret_key_compare_num = 0
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self.select_id = 0
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self.mouse_on_option = False
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self.keyboard_ensure_status = False
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# 设置字体
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font_file = os.path.join(data_path(),"Dymon-ShouXieTi.otf")
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self.font = pygame.font.Font(font_file,16)
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self.text_rect_list = []
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self.__init_text_list()
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# 雨滴列表
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self.rain_max = 50
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self.rain_list = []
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# 雨滴生命周期
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self.rain_live_max = 10
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# 初始化雨滴
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self.init_rain(self.rain_max)
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# 鼠标位置
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self.mouse_pos = (0, 0)
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def update(self, dt=0):
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# 按键按下则切换场景
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if self.button_status:
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self.switch_to_scene("GameScene")
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if self.secret_key_compare_num == len(self.secret_keys):
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print("我去，是通关秘籍！")
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self.switch_to_scene("EmptyScene")
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# 显示选项文本
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self.__show_ui()
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# 处理鼠标点击
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self.handle_mouse_click()
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# 处理空格或enter
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self.handle_keyboard()
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# 雨滴坠落
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self.rain_fall(dt)
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# 更新鼠标位置
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self.mouse_pos = pygame.mouse.get_pos()
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# 更新当前帧鼠标状态
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self.mouse_last_status = self.mouse_status
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# self.__show(self.select_id)
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def handle_event(self, event):
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"""
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接收主循环传来的事件并处理
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"""
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if event.type == pygame.KEYDOWN:
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keys = pygame.key.get_pressed() # 获取所有按键状态，用于组合按键判断
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if event.key == pygame.K_ESCAPE:
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self.exit() # 退出游戏
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elif keys[pygame.K_z] and keys[pygame.K_x]: # 同时按下Z和X
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self.button_status = True
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elif event.key == pygame.K_SPACE or event.key == pygame.K_RETURN:
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self.keyboard_ensure_status = True
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else:
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self.keyboard_ensure_status = False
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# 判断是否按顺序按下秘籍
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if event.unicode.lower() == self.secret_keys[self.secret_key_compare_num]:
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self.secret_key_compare_num += 1
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else:
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self.secret_key_compare_num = 0
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if event.type == pygame.KEYUP:
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if event.key == pygame.K_w or event.key == pygame.K_UP:
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self.select_id -= 1
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elif event.key == pygame.K_s or event.key == pygame.K_DOWN:
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self.select_id += 1
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self.select_id = self.select_id % len(self.text_rect_list)
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# 鼠标事件
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if event.type == pygame.MOUSEBUTTONDOWN:
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self.mouse_status = "down"
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elif event.type == pygame.MOUSEBUTTONUP:
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self.mouse_status = "up"
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elif event.type == pygame.MOUSEMOTION:
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self.mouse_status = "move"
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def __click(self):
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"""
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判断是否点击鼠标：鼠标抬起时，上一帧的状态如果是按下或者移动则判断为点击
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"""
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if self.mouse_status == "up":
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if self.mouse_last_status in ["down", "move"]:
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return True
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return False
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def __show(self, info, dest=(0, 0)):
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"""
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显示调试文本
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"""
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if not self.debug_status:
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return
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if not isinstance(info, str):
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info = str(info)
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info_text = self.font.render(info, True, Color.white)
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self.screen.blit(info_text, dest)
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def handle_mouse_click(self):
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"""
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处理鼠标点击
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"""
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if self.__click() and self.mouse_on_option:
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# 触发选项处理
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self.__handle_option()
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def handle_keyboard(self):
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if self.keyboard_ensure_status:
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# 触发选项处理
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self.__handle_option()
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def __rain_list_append(self, status=0):
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"""
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向列表中添加一个雨滴，默认状态为0
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"""
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x = random.randint(0, int(GameConfig.window_x))
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y = random.randint(0, int(GameConfig.window_y))
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rain = {
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"dest": (x, y),
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"timer": 0,
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"status": status
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}
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self.rain_list.append(rain)
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def __init_text_list(self):
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# 文本
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text_list = [
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"开始游戏",
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"设置",
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"退出游戏",
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]
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# 转换为文本框
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for text_str in text_list:
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self.text_rect_list.append(self.font.render(text_str, True, Color.white))
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def __handle_option(self):
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"""
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处理选项，根据id执行
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"""
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if self.select_id is None:
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return
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elif self.select_id == 0:
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self.switch_to_scene("GameScene")
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elif self.select_id == 1:
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self.switch_to_scene("ConfigScene")
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elif self.select_id == len(self.text_rect_list) - 1:
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self.exit()
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def __show_ui(self):
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"""
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显示所有选项
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"""
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screen_rect = self.screen.get_rect() # 获取屏幕矩形
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self.mouse_on_option = False # 未选中选项时重置状态
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count = 0
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for text in self.text_rect_list:
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text_rect = text.get_rect() # 获取文本矩形
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text_rect.centerx = screen_rect.centerx # 将文本居中到屏幕
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text_rect.y = screen_rect.y + count * 2 * text_rect.height + screen_rect.centerx/2
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self.screen.blit(text, text_rect.topleft)
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# 是否高亮显示
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if text_rect.y < self.mouse_pos[1] < text_rect.y + text_rect.height \
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and text_rect.x < self.mouse_pos[0] < text_rect.x + text_rect.width:
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pygame.draw.rect(self.screen, Color.white, text_rect, 1)
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# 更新选中id
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self.select_id = count
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# 更新鼠标状态
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self.mouse_on_option = True
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count += 1
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# 显示键盘选中
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if self.select_id is not None:
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text_rect = self.text_rect_list[self.select_id].get_rect()
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text_rect.centerx = screen_rect.centerx # 将文本居中到屏幕
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text_rect.y = screen_rect.y + self.select_id * 2 * text_rect.height + screen_rect.centerx/2
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pygame.draw.rect(self.screen, Color.white, text_rect, 1)
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def init_rain(self, max_num):
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"""
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初始化雨滴列表，保存雨滴落点的坐标
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"""
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for i in range(max_num):
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status = random.randint(1, self.rain_live_max)
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self.__rain_list_append(status)
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def rain_fall(self, dt):
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"""
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展示雨滴画面
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"""
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for rain in self.rain_list:
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# 当状态在区间1时绘制雨滴线条
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if rain["status"] <= self.rain_live_max - 3:
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# 设计高度
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rain_high = 10 * self.rain_live_max
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# 起点位置
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# x坐标与最后落点x一致
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x = rain["dest"][0]
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# y坐标为落点位置向上移动设计高度后，加上生命周期去掉尾帧后落下的位置
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y = (rain["dest"][1] - rain_high) + (rain["status"] * (self.rain_live_max + 2))
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y2 = y + 10
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line_start_point = (x, y)
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line_end_point = (x, y2)
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pygame.draw.line(self.screen, Color.white, line_start_point, line_end_point, 1)
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# 状态在区间2时绘制涟漪
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elif self.rain_live_max - 3 < rain["status"]:
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point_width = rain["status"] - (self.rain_live_max - 3)
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pygame.draw.circle(self.screen, Color.white, rain["dest"], point_width, 1)
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# # 椭圆
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# rain_point_rect = [rain["dest"][0], rain["dest"][1], rain["status"], rain["status"]]
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# pygame.draw.ellipse(self.screen, Color.white, rain_point_rect, 1)
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# 雨滴状态每d_status毫秒变化一次
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d_status = 30
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if rain["timer"] > d_status:
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rain["status"] += 1
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rain["timer"] -= d_status # 不设为0，避免累计时间误差
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# 生命周期走完后销毁并添加新雨滴
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if rain["status"] > self.rain_live_max:
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self.rain_list.remove(rain)
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self.__rain_list_append()
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# timer累计每帧时间
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rain["timer"] += dt |