проверка попадания блока в блок

from tkinter import *
from random import randrange as rnd, choice
from PIL import ImageTk, Image
import os, sys
import time

root = Tk()
width = 900
hight = 600

root.geometry(str(width)+'x'+str(hight)+'+100+100')
canv = Canvas(bg='lightblue')
canv.pack(fill=BOTH,expand=1)



def pointInSegment(x,x1,x2):
    return x1 <= x <= x2

def segmentInSegment(x1,x2,xx1,xx2):
    return pointInSegment(x1,xx1,xx2) or pointInSegment(x2,xx1,xx2) or \
    pointInSegment(xx1,x1,x2) or pointInSegment(xx2,x1,x2)

def rectInRect(x1,y1,x2,y2,xx1,yy1,xx2,yy2):
    if segmentInSegment(x1,x2,xx1,xx2) and segmentInSegment(y1,y2,yy1,yy2):
        return True
    if segmentInSegment(xx1,xx2,x1,x2) and segmentInSegment(yy1,yy2,y1,y2):
        return True
    return False

xx1,yy1,xx2,yy2 = 250,200,350,300

canv.create_rectangle(xx1,yy1,xx2,yy2)


x1,y1,x2,y2 = 0,0,0,0
px1,py1,px2,py2 = 0,0,0,0

sq = canv.create_rectangle(x1,y1,x2,y2)

def m(event):
    global x1,x2,y1,y2
    px1,py1,px2,py2 = x1,y1,x2,y2
    x1 = event.x
    x2 = event.x + 150
    y1 = event.y
    y2 = event.y + 150
    color = 'black'
    if rectInRect(x1,y1,x2,y2,xx1,yy1,xx2,yy2):
        color = 'yellow'
        if segmentInSegment(px1,px2,xx1,xx2):
            # ~ print('up-down')
            if py2 < yy1:
                color = 'blue'
                print('up')
            else:
                color = 'green'
                print('down')
        else:
            # ~ print('left-right')
            if px2 < xx1:
                color = 'orange'
                print('left')
            else:
                color ='red'
                print('right')
        x1,y1,x2,y2 = px1,py1,px2,py2
    canv.coords(sq,x1,y1,x2,y2)

    canv.itemconfig(sq,fill=color)

root.bind('<Motion>',m)

mainloop()