from Tkinter import *
import pygame
import time

xvel = 10.0
yvel = 0
g = 5
x = 10
y = 10
size = 10
bounce = 0
pygame.mixer.init()
boing = pygame.mixer.Sound("boing.wav")

def paint(parent,canvas):
	global t, xvel, yvel, x, y, size, g, bounce
	size = 10;
	if y > 390:
		bounce = bounce + 1

		yvel = -60*(0.8**bounce)
		boing.play()
		
	x = x + xvel
	yvel = yvel + g
	y = y + yvel

	canvas.coords("ball", (x-size, y-size, x+size, y+size))

	time.sleep(.1)
	parent.after_idle(paint,parent,canvas)

root = Tk()
root.title('tkline')
root.bind('q','exit')
canvas = Canvas(root, width=700, height=400, background='white')
canvas.pack()
canvas.create_oval((x-size, y-size, x+size, y+size), tag = "ball")
root.after(100,paint,root,canvas)
root.mainloop()