【pygame入门开发】一种键盘侦听的解决方案

# _*_coding: utf-8_*_ """ Time: 2022/8/13 10:32 Author: 翟海鹏(ZII) Version: alpha-0.0.1 File: keys.py Describe: 这一部分实现按键信息读取|存储|创建与按键显示，因为目前没有写显示模块所以实际上是两个模块集成到一块了，不利于后期修改物料的显示顺序 last modified: 2022/8/15 21:07 """ import os from pathlib import Path import pygame from pygame.surface import Surface class Key: # 按键实体类 pos = None def __init__(self, value='', pos: [] = None, state: bool = False): if pos is None: self.show = False # 这个show目前没用上，用来控制按键按钮的隐藏与显示 self.pos = pos # 按钮坐标 self.isPressed = state # 按键是否按下，按下为真，弹起为假 self.value = value # 按键绑定值 class KeyBoard: def __init__(self, layoutPath: Path | str = '../../res/layout', # 布局路径，以点阵形式存储每一个键对应的位置 imgPath: Path | str = '../../res/img/keyboard_button'): # 图标路径，用以显示 self.keys: dict[str: Key] = {'': Key()} self.layoutPath = layoutPath # 载入按键的按钮显示布局 r = open(layoutPath, 'r') tmp = r.readline() while tmp != '': value, pos = tmp.rstrip('\n').split('\t') pos = [int(_) for _ in pos.strip('(').rstrip(')').split(', ')] self.addKey(value, pos) tmp = r.readline() r.close() # 载入图片 self.img = [pygame.image.load(str(imgPath) + '/' + str(_)) for _ in os.listdir(imgPath)] # 添加按键 def addKey(self, value: str = '', pos=None): self.keys[value] = Key(value) if value != '': match pos: # 主动添加按键到鼠标位置 case None: self.keys[value].pos = pygame.mouse.get_pos() open(self.layoutPath, 'a').writelines(f'{value}\t' + str(self.keys[value].pos) + '\n') # 自定义按键位置的添加按键 case (_, _): if all([type(_) == int for _ in pos]): self.keys[value].pos = pos # 其他情况，就是其他情况 case _: raise ValueError("please check file layout,there might has some trouble") # 更改按键按钮坐标，目前没用上 def moveKey(self, value: str = '', pos: [] = None): if pos is None: pass return if value in self.keys: self.keys[value].pos = pos else: pass return # 按键事件处理-按下 def pressKey(self, value: str): if value in self.keys: self.keys[value].isPressed = True else: self.addKey(value) # 按键事件处理-弹起 def releaseKey(self, value: str): if value in self.keys: self.keys[value].isPressed = False # 显示队列更新 def update(self, surface: Surface): # 这是一个单独用来显示字体的函数，可以剥离到别的地方单独用 def render_text(text: str, color, pos): font = pygame.font.SysFont('宋体', 30) text = font.render(text, True, pygame.Color(color)) surface.blit(text, pos) for value, key in self.keys.items(): if key.pos is not None: surface.blit(self.img[key.isPressed], key.pos) render_text(value, [255,255,255]if key.isPressed else[0,0,0], [key.pos[0]+17, key.pos[1]+13])