Create a game in Python only using graphics.py

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Python

I am creating a game which i called loose ball... for it i made two figures one ball and one square basically what i try to achieve is that the game continue to move that is the ball keeps moving as a long as the ball does not touch the square.. if it touches the figure then simple game over..it happens that the ball in not touching the figure and it throws me the game over message.... Ill leave down the code that i try...

What I have tried:

from graphics import *


def figure_left(figure):
    figure.move(-15, 0)

def figure_right(figure):
    figure.move(15, 0)

def figure_up(figure):
    figure.move(0, -15)

def figure_down(figure):
    figure.move(0, 15)

def window():
    #Window
     win = GraphWin("Loose Ball", 400, 400)
     win.setBackground("green")
     return win
    
 
    
         
def main():
     win = window()
     #figure
     figure = Rectangle(Point(150,150), Point(150, 150))
     figure.setOutline("blue")
     figure.setFill("blue")
     figure.draw(win)
     figure.move(170, 5)
     figure.setWidth(40)
     #Ball
     radius = 40
     ball = Circle(Point(300, 200), radius)
     ball.setOutline("red")
     ball.setFill("red")
     ball.draw(win)
     dx = 1
     dy = 1
     yFloor = radius
     yCieling = win.getHeight() - radius
     xFloor = radius
     xCieling = win.getHeight() - radius



     
     while True:
         time.sleep(.01)
         ball.move(dx, dy)
         key = win.checkKey()
         
         if key == "o":
             break
         elif key == "Left":
             figure_left(figure)
         elif key == "Right":
             figure_right(figure)
         elif key == "Up":
             figure_up(figure)
         elif key == "Down":
             figure_down(figure)
     #Move Ball
         if ball.getCenter().getY() <= yFloor or ball.getCenter().getY() >= yCieling:
             dy = -dy
         elif ball.getCenter().getX() <= xFloor or ball.getCenter().getX() >= xCieling:
             dx = -dx
     #Ball Collision with figure
         elif ball.getCenter().getY() <= figure.getCenter().getY() or ball.getCenter().getX() >= figure.getCenter().getX():
               text = Text(Point(200, 200), "GAME OVER !!!!")
               text.draw(win)
               break