mirror of https://github.com/python/cpython
60 lines
1.3 KiB
Python
60 lines
1.3 KiB
Python
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from Tkinter import *
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import string
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class Pong(Frame):
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def createWidgets(self):
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self.QUIT = Button(self, {'text': 'QUIT',
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'fg': 'red',
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'command': self.quit})
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self.QUIT.pack({'side': 'left', 'fill': 'both'})
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## The playing field
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self.draw = Canvas(self, {"width" : "5i", "height" : "5i"})
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## The speed control for the ball
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self.speed = Scale(self, {"orient": "horiz",
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"label" : "ball speed",
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"from" : -100,
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"to" : 100})
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self.speed.pack({'side': 'bottom', "fill" : "x"})
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# The ball
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self.ball = self.draw.create_oval("0i", "0i", "0.10i", "0.10i", {"fill" : "red"})
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self.x = 0.05
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self.y = 0.05
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self.velocity_x = 0.3
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self.velocity_y = 0.5
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self.draw.pack({'side': 'left'})
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def moveBall(self, *args):
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if (self.x > 5.0) or (self.x < 0.0):
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self.velocity_x = -1.0 * self.velocity_x
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if (self.y > 5.0) or (self.y < 0.0):
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self.velocity_y = -1.0 * self.velocity_y
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deltax = (self.velocity_x * self.speed.get() / 100.0)
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deltay = (self.velocity_y * self.speed.get() / 100.0)
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self.x = self.x + deltax
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self.y = self.y + deltay
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self.draw.move(self.ball, `deltax` + "i", `deltay` + "i")
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self.after(10, self.moveBall)
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def __init__(self, master=None):
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Frame.__init__(self, master)
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Pack.config(self)
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self.createWidgets()
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self.after(10, self.moveBall)
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game = Pong()
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game.mainloop()
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