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59f5c0c5f0
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import pygame as pg
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#实现一个按键的类
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#参数:
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# rect:按键大小位置
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# color:颜色
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# function:回调函数
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# clicked:按下状态
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# hovered:悬停状态
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# hover_text:悬停显示文本
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# clicked_text:按下显示文本
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# process_kwargs(kwargs):其他用户个性化配置,
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# 简单来说就是各种属性参数
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class Button(object):
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#初始化
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def __init__(self,rect,color,function,**kwargs):
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self.rect = pg.Rect(rect)
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self.color = color
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self.function = function
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self.clicked = False
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self.hovered = False
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self.hover_text = None
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self.clicked_text = None
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self.process_kwargs(kwargs)
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self.render_text()
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#用于设置其他的参数
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def process_kwargs(self,kwargs):
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settings = {"text" : None,
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"font" : pg.font.Font(None,24), #调用默认自带字体
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"call_on_release" : True,
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"hover_color" : None,
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"clicked_color" : None,
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"font_color" : (106, 90, 205),
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"hover_font_color" : None,
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"clicked_font_color" : None,
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"click_sound" : None,
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"hover_sound" : None}
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for kwarg in kwargs:
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if kwarg in settings:
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settings[kwarg] = kwargs[kwarg]
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else:
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raise AttributeError("Button has no keyword: {}".format(kwarg))
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self.__dict__.update(settings)
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#显示按键文本
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def render_text(self):
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if self.text:
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if self.hover_font_color:
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color = self.hover_font_color
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self.hover_text = self.font.render(self.text,True,color)
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if self.clicked_font_color:
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color = self.clicked_font_color
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self.clicked_text = self.font.render(self.text,True,color)
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self.text = self.font.render(self.text,True,self.font_color)
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#按键事件 分别处理按下和松开的事件
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def check_event(self,event,tip = 0):
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if event.type == pg.MOUSEBUTTONDOWN and event.button == 1: # 有按键按下动作
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return self.on_click(event,tip)
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elif event.type == pg.MOUSEBUTTONUP and event.button == 1: # 有按键释放动作
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return self.on_release(event,tip)
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else: # 无事件
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return tip
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#按键按下事件处理
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def on_click(self,event,tip = 0):
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if self.rect.collidepoint(event.pos): # 按键冲突检查 判断是否为本实例按键区域
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self.clicked = True
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if not self.call_on_release:
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return self.function() # 执行回调函数
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else:
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return tip
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else:
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return tip
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#按键松开事件处理
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def on_release(self,event,tip = 0):
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if self.clicked and self.call_on_release:
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self.clicked = False
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if self.click_sound:
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self.click_sound.play() # 按键按下音效
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return self.function() # 执行回调函数
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else:
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return tip
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#按键悬停事件
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def check_hover(self):
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if self.rect.collidepoint(pg.mouse.get_pos()):
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if not self.hovered:
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self.hovered = True
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if self.hover_sound:
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self.hover_sound.play() #按键悬浮音效
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else:
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self.hovered = False
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#刷新按键状态
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def update(self,surface): #松开状态
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color = self.color
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text = self.text
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self.check_hover()
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if self.clicked and self.clicked_color: #按下状态
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color = self.clicked_color
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if self.clicked_font_color:
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text = self.clicked_text
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elif self.hovered and self.hover_color: #悬浮状态
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color = self.hover_color
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if self.hover_font_color:
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text = self.hover_text
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surface.fill(color,self.rect.inflate(0,0))
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if self.text:
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text_rect = text.get_rect(center=self.rect.center)
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surface.blit(text,text_rect)
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