PYTHON TUTORIAL / TURTLE HUNTING APPLE GAME

Hey Hive people, how´s it going?

As you all know, we are all in isolation.
So I got very bored and decided to create a little Python game.
Game is very easy -turtle just hunt apple.
You can control the turtle with your keyboard arrows.
Similar to the Snake Game, what you all have played in your parents oldschool Nokia 3310-s.

So I decided to share with you this code, and if you have to add something to this code just comment.

CODE:

import turtle
import math
import random
# set up screen
screen = turtle.Screen()
screen.setup(700, 700)
# draw border
border = turtle.Turtle()
border.pensize(3)
border.penup()
border.setpos(-300, -300)
border.pendown()
border_cnt = 1
while border_cnt <= 4:
    border.forward(600)
    border.left(90)
    border_cnt = border_cnt + 1
# create player
player = turtle.Turtle()
player.shape('turtle')
player.color('green')
player.speed(0)
player.penup()
# create apple
apple = turtle.Turtle()
apple.shape('circle')
apple.color('red')
apple.penup()
apple.speed(0)
apple.setpos(100, 100)
speed = 1
def increase_speed():
    global speed
    speed = speed + 1
def turn_left():
    player.left(30)
def turn_right():
    player.right(30)
def is_in_boundaries(t):
    x = t.xcor()
    y = t.ycor()
    if x < 300 and x > -300 and y < 300 and y > -300:
        return True
    else:
        return False
def is_collision(t1, t2):
    d = math.sqrt(
        math.pow(t1.xcor() - t2.xcor(), 2) + 
        math.pow(t1.ycor() - t2.ycor(), 2))
    if d < 20:
        return True
    else:
        return False
turtle.listen()
turtle.onkey(increase_speed, 'Up')
turtle.onkey(turn_left, 'Left')
turtle.onkey(turn_right, 'Right')
while True:
    player.forward(speed)
    
    if not is_in_boundaries(player):
        player.right(180)
 
    if is_collision(player, apple):
        apple.setpos(
            random.randint(-300, 300), 
            random.randint(-300, 300))
        apple.right(random.randint(0, 360))
    
    apple.forward(1)
    if not is_in_boundaries(apple):
        apple.right(180)

turtle.done()

Little GIF of this game:

Have a nice day!
@m2nnari