[Python] How can my player collides with the border of the canvas?

The Player should collide with the border of the canvas, but I don't know how to do it.

from tkinter import *
import time


the window

tk = Tk()
tk.title("Game")
tk.geometry("500x500")
tk.wm_attributes("-topmost", 1)
tk.resizable(0, 0)


the canvas

canvas = Canvas(tk, width=500, height=500, bg="#FFD700")
canvas.pack()
canvasx = canvas.winfo_width()
canvasy = canvas.winfo_height()

player = canvas.create_rectangle(240, 240, 260, 260, fill="blue",
outline="dark blue")


the Player class

class Player:
def __init__(self, event, canvas):
def move(event):
if event.keysym == "Up" or event.keysym == "w":
canvas.move(1, 0, -5)
elif event.keysym == "Down" or event.keysym == "s":
canvas.move(1, 0, 5)
elif event.keysym == "Right" or event.keysym == "d":
canvas.move(1, 5, 0)
else:
canvas.move(1, -5, 0)


what should I write in this function?

def hit_border():
pass

canvas.bind_all("<KeyPress-Up>", move)
canvas.bind_all("<KeyPress-w>", move)
canvas.bind_all("<KeyPress-Down>", move)
canvas.bind_all("<KeyPress-s>", move)
canvas.bind_all("<KeyPress-Right>", move)
canvas.bind_all("<KeyPress-d>", move)
canvas.bind_all("<KeyPress-Left>", move)
canvas.bind_all("<KeyPress-a>", move)


here is the loop that makes the everything work

while True:
player = Player(canvas, canvas)
tk.update()
time.sleep(0.001)

Continue reading...