pygame学习教程（六）添加鼠标点击事件 |
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上一篇 在上面的例子实现放置按钮。首先我们优化一下代码 就是这段 def SetPo(self): #设置位置 set position # screen.blit(self.mouse_cursor,self.vertex)screen是在if name == “main”:下定义的 screen = pygame.display.set_mode((640, 480), 0, 32)这个坏处是很可能定义其它的screen,类似于新的screen screen1 = pygame.display.set_mode((400, 300), 0, 32)而在我们的类里定义一个self.screen也是不妥的，因为很多情况都是在一个screen下画图，如果每实例化一次继承一个screen是资源的的浪费，所以这里需要加入变量。修改后的代码 def SetPo(self,objscreen): #设置位置 set position # objscreen.blit(self.mouse_cursor,self.vertex)``` def DrawButton(myscreen): mylist=[] for i in ButtonDict.keys(): mylist.append("{}.SetPo({})".format(i,myscreen)) return mylist调用的时候需要修改为 s=DrawButton(“screen”) 在这里我们添加鼠标点击事件，思路是获得鼠标点击的（x,y）值看在不在我们的按钮范围内，ButtonDict作为全局变量存储了图标的位置。返回控件的值。代码如下 def AtContr(x,y): for mykey in ButtonDict.keys(): if x in range(ButtonDict[mykey][0][0],ButtonDict[mykey][1][0]) \ and y in range(ButtonDict[mykey][0][1],ButtonDict[mykey][1][1]): return mykey需要在事件控制里加入判断程序，定义自己的_click()处理程序 def butto1_click(): print("button1鼠标单击") def butto2_click(): print("button2鼠标单击") MyactiveC=AtContr(x, y) for event in pygame.event.get(): if event.type == QUIT: # 接收到退出事件后退出程序 exit() if MyactiveC: if event.type == KEYDOWN: print(MyactiveC) print("this is KEYDOWN") elif event.type == MOUSEBUTTONDOWN: exec("{}_click()".format(MyactiveC)) # 注意这条可以简化 elif event.type == MOUSEMOTION: pass elif event.type == MOUSEBUTTONUP: pass完整代码如下 # coding: utf8 import pygame #导入pygame库 from pygame.locals import * #导入一些常用的函数和常量 from sys import exit import pickle import DVerctor ButtonDict={} class JCon(): def __init__(self,vertex,mouse_image_filename): self.vertex=vertex #设置按钮顶点 set button vertex (left,top)格式 self.mouse_cursor = pygame.image.load(mouse_image_filename).convert_alpha() self.count=0 #用于计数 self.BoPo =DVerctor.Vec2d(vertex)+DVerctor.Vec2d(self.mouse_cursor.get_width(),self.mouse_cursor.get_height()) #获得范围left+width,top+height （x,y）+(x1,y1) def SetPo(self,objscreen): #设置位置 set position # objscreen.blit(self.mouse_cursor,self.vertex) def SetPoMuoseup(self,newPlace:tuple): self.vertex=newPlace class Jbutton(JCon): pass def TextPygame(): #测试模块是否存在和版本号 print(pygame.ver) pgname = ['pygame.cdrom', 'pygame.cursors', 'pygame.display', 'pygame.draw', 'pygame.event', 'pygame.font', 'pygame.image', 'pygame.joystick', 'pygame.key', 'pygame.mixer', 'pygame.mouse', 'pygame.movie', 'pygame.music', 'pygame.overlay', 'pygame', 'pygame.rect', 'pygame.sndarray', 'pygame.sprite', 'pygame.surface', 'pygame.surfarray', 'pygame.time'] for i in pgname: if i is None: print(i+" is None") else: print(i + " at this computer") def storeTree(filename,*args): with open(filename,'wb') as fw: #打开需要用'wb' for i in args: pickle.dump(i, fw,-1) #为了保护数据protocol=-1，设为0可以看到数据 def grabTree(filename): Mylist=[] #返回变量的列表 with open(filename,'rb') as fr: while True: #这里用try最简单，不用定义循环次数 try: Mylist.append(pickle.load(fr)) except: break return Mylist def CreateButton(): # global ButtonDict mylist=[] for exi in ButtonDict.keys(): mylist.append("{}=Jbutton({},'{}')".format(exi,ButtonDict[exi][0],ButtonDict[exi][1])) for exi in ButtonDict.keys(): mylist.append('ButtonDict["{0}"] = [ButtonDict["{0}"][0],({0}.BoPo[0],{0}.BoPo[1])]'.format(exi)) return mylist def DrawButton(myscreen): mylist=[] for i in ButtonDict.keys(): mylist.append("{}.SetPo({})".format(i,myscreen)) return mylist def RunStr(s:list): for i in s: exec(i) #ButtonDict = {'butto1': [(12, 13), (112, 49)], 'butto2': [(52, 73), (152, 109)]} def AtContr(x,y): for mykey in ButtonDict.keys(): if x in range(ButtonDict[mykey][0][0],ButtonDict[mykey][1][0]) \ and y in range(ButtonDict[mykey][0][1],ButtonDict[mykey][1][1]): return mykey def butto1_click(): print("button1鼠标单击") def butto2_click(): print("button2鼠标单击") if __name__ == "__main__": background_image_filename = 'sushiplate.jpg' # 指定图像文件名称 pygame.init() # 初始化pygame,为使用硬件做准备 screen = pygame.display.set_mode((640, 480), 0, 32) # 创建了一个窗口 pygame.display.set_caption("Hello, World!") # 设置窗口标题 background = pygame.image.load(background_image_filename).convert() #在这里添加按钮 ButtonDict["butto1"] = [(12, 13), 'feid1.png'] #全局变量，判定 ButtonDict["butto2"] = [(52, 73), 'feid1.png'] s=CreateButton() # RunStr(s) 这里不能调用函数 for i in s: exec(i) print("ButtonDict=",ButtonDict) #修改ButtonDict while True: # 游戏主循环 x, y = pygame.mouse.get_pos() # 获得鼠标位置 # 计算光标的左上角位置 #看x,y是否在控件位置上 MyactiveC=AtContr(x, y) for event in pygame.event.get(): if event.type == QUIT: # 接收到退出事件后退出程序 exit() if MyactiveC: if event.type == KEYDOWN: print(MyactiveC) print("this is KEYDOWN") elif event.type == MOUSEBUTTONDOWN: exec("{}_click()".format(MyactiveC)) elif event.type == MOUSEMOTION: pass elif event.type == MOUSEBUTTONUP: pass screen.blit(background, (0, 0)) # 将背景图画上去 # 把光标画上去 s=DrawButton("screen") for i in s: exec(i) pygame.display.update() # 刷新一下画面点击图标输出： button2鼠标单击 button1鼠标单击 [下一篇] |
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