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:
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proc
/
6569
/
task
/
6573
/
root
/
lib64
/
python2.7
/
Demo
/
tkinter
/
matt
/
Filename :
pong-demo-1.py
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from Tkinter import * import string class Pong(Frame): def createWidgets(self): self.QUIT = Button(self, text='QUIT', foreground='red', command=self.quit) self.QUIT.pack(side=LEFT, fill=BOTH) ## The playing field self.draw = Canvas(self, width="5i", height="5i") ## The speed control for the ball self.speed = Scale(self, orient=HORIZONTAL, label="ball speed", from_=-100, to=100) self.speed.pack(side=BOTTOM, fill=X) # The ball self.ball = self.draw.create_oval("0i", "0i", "0.10i", "0.10i", fill="red") self.x = 0.05 self.y = 0.05 self.velocity_x = 0.3 self.velocity_y = 0.5 self.draw.pack(side=LEFT) def moveBall(self, *args): if (self.x > 5.0) or (self.x < 0.0): self.velocity_x = -1.0 * self.velocity_x if (self.y > 5.0) or (self.y < 0.0): self.velocity_y = -1.0 * self.velocity_y deltax = (self.velocity_x * self.speed.get() / 100.0) deltay = (self.velocity_y * self.speed.get() / 100.0) self.x = self.x + deltax self.y = self.y + deltay self.draw.move(self.ball, "%ri" % deltax, "%ri" % deltay) self.after(10, self.moveBall) def __init__(self, master=None): Frame.__init__(self, master) Pack.config(self) self.createWidgets() self.after(10, self.moveBall) game = Pong() game.mainloop()