Rolling_ball.py

from graphics import *
from math import *

x0,y0=100,27
r=50
#h,l=[int(x) for x in input().split()]
h,l=500,500
win=GraphWin("Rolling_ball",1000,1000)
theta=(sqrt((h**2)+(l**2))*360)/(pi*l*2*r)
b=l
for x in range(100,1000):
    rad1 = theta * 3.14/ 180;
    rad2 = (theta + 90) * 3.14/ 180;
    Line(Point(100, 100), Point(100, 100 + h)).draw(win)
    Line(Point(100, 100 + h), Point(1000, 100 + h)).draw(win)
    Line(Point(100, 100), Point(100 + l, 100 + h)).draw(win)
    Circle(Point(x0,y0), 50).draw(win)
    Line(Point(x0 , y0), Point(x0 + r * sin(rad1), y0 + r * cos(rad1))).draw(win)
    Line(Point(x0, y0), Point(x0 + r * sin(rad2), y0 + r * cos(rad2))).draw(win)
    Line(Point(x0, y0), Point(x0 - r * sin(rad1), y0 - r * cos(rad1))).draw(win)
    Line(Point(x0, y0), Point(x0 - r * sin(rad2), y0 - r * cos(rad2))).draw(win)
    # win.delete("all")
    # theta-=8
    # time.sleep(.1)


    if x>=120+l and x <900:
        win.delete("all")
        theta -=  6.5*x / b
        b+=10
        x0=x
        time.sleep(b / (150 * x))

    elif x<125+l:
        win.delete("all")
        y0+=h/l
        theta -= 7.5* x / l
        time.sleep(l / (150 * x))
        x0 = x
    else:
        win.getMouse()
        break




win.getMouse()
win.close()