Pong Game using Python OOP

main.py

from turtle import Screen
from paddle import Paddle
from ball import Ball
import time
from scoreboard import ScoreBoard


# Step 1 - Create the screen

screen = Screen()
screen.setup(width=800, height=600)
screen.bgcolor("black")
screen.title("Pong Game")
screen.tracer(0)

# Step 2 - Create the paddle and move it
r_paddle = Paddle((350, 0))
l_paddle = Paddle((-350, 0))

screen.listen()
screen.onkey(r_paddle.go_up, "Up")
screen.onkey(r_paddle.go_down, "Down")

screen.onkey(l_paddle.go_up, "w")
screen.onkey(l_paddle.go_down, "s")

# Step 3 - Write the Ball Class and Make the Ball Move
ball = Ball()

# Step 4 - Add the Ball Bouncing Logic

# Step 9 - Score Keeping and Changing the Ball Speed
scoreboard = ScoreBoard()


game_is_on = True

while game_is_on:
    screen.update()
    time.sleep(ball.move_speed)
    ball.move()
    # Step 5 - detect collision with wall
    if ball.ycor() > 270 or ball.ycor() < -270:
        ball.bounce_y()

    # Step 6 - detect collision with r_paddle
    if ball.distance(r_paddle) < 50 and ball.xcor() > 320 or ball.distance(l_paddle) < 50 and ball.xcor() < -320:
        ball.bounce_x()

    # Step 7 - detect collision when ball misses the r_paddle
    if ball.xcor() > 380:
        ball.reset_position()
        scoreboard.l_point()

    # Step 8 - detect collision when ball misses the l_paddle
    if ball.xcor() < - 380:
        ball.reset_position()
        scoreboard.r_point()


screen.exitonclick()

# ball class
from turtle import Turtle


class Ball(Turtle):

    def __init__(self):
        super().__init__()
        self.shape("circle")
        self.color("white")
        self.penup()
        self.shapesize(stretch_wid=0.7, stretch_len=0.7)
        self.x_move = 10
        self.y_move = 10
        self.move_speed = 0.1

    def move(self):
        new_x = self.xcor() + self.x_move
        new_y = self.ycor() + self.y_move
        self.goto(new_x, new_y)

    def bounce_y(self):
        self.y_move *= -1

    def bounce_x(self):
        self.x_move *= -1
        self.move_speed *= 0.9

    def reset_position(self):
        self.goto(0, 0)
        self.move_speed = 0.1
        self.bounce_x()

       
    # Scoreboard class
    from turtle import Turtle


class ScoreBoard(Turtle):

    def __init__(self):
        super().__init__()
        self.color("white")
        self.penup()
        self.hideturtle()
        self.l_score = 0
        self.r_score = 0
        self.update_score()

    def update_score(self):
        self.clear()
        self.goto(-100, 200)
        self.write(self.l_score, align="center", font=("arial", 80, "normal"))
        self.goto(100, 200)
        self.write(self.r_score, align="center", font=("arial", 80, "normal"))

    def l_point(self):
        self.l_score += 1
        self.update_score()

    def r_point(self):
        self.r_score += 1
        self.update_score()

# paddle class
from turtle import Turtle, Screen

screen = Screen()


class Paddle(Turtle):

    def __init__(self, position):
        super().__init__()
        self.shape("square")
        self.color("white")
        self.shapesize(stretch_wid=5, stretch_len=1)
        self.penup()
        self.goto(position)

    def go_up(self):
        new_y = self.ycor() + 20
        self.goto(self.xcor(), new_y)

    def go_down(self):
        new_y = self.ycor() - 20
        self.goto(self.xcor(), new_y)