Day 22－Pong Game

learning from 100 Days of Code: The Complete Python Pro Bootcamp for 2022

# main.py

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


screen = Screen()
screen.setup(height=600, width=800)
screen.bgcolor("black")
screen.title("Pong")
ball = Ball()


screen.tracer(0)
screen.listen()

scoreboard = ScoreBoard()
r_paddle = Paddle((350, 0))
l_paddle = Paddle((-350, 0))


screen.onkey(r_paddle.up, "Up")
screen.onkey(r_paddle.down, "Down")
screen.onkey(l_paddle.up, "w")
screen.onkey(l_paddle.down, "s")


is_game_on = True

while is_game_on:
    time.sleep(ball.move_speed)
    screen.update()
    ball.move()

    if ball.ycor() > 280 or ball.ycor() < -280:
        ball.bounce_y()

    if ball.distance(r_paddle) < 90 and ball.xcor() > 320 or ball.distance(l_paddle) < 90 and ball.xcor() < -320:
        ball.bounce_x()

    if ball.xcor() > 390:
        scoreboard.l_point()
        ball.re_start()

    if ball.xcor() < -390:
        scoreboard.r_point()
        ball.re_start()


screen.exitonclick()

# paddle.py

from turtle import Turtle


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

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

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

# ball.py

from turtle import Turtle


class Ball(Turtle):
    def __init__(self):
        super().__init__()
        self.shape("circle")
        self.color("white")
        self.penup()
        self.x_dir = 10
        self.y_dir = 10
        self.move_speed = 0.1

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

    def move(self):
        new_x = self.xcor() + self.x_dir
        new_y = self.ycor() + self.y_dir
        self.goto(new_x, new_y)

    def bounce_y(self):
        self.move_speed *= 0.9
        self.y_dir *= -1

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

# scoreboard.py

from turtle import Turtle


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

    def update_score(self):
        self.clear()
        self.goto(-100, 220)
        self.write(self.l_score, align='center', font=('Courier', 40, 'normal'))
        self.goto(100, 220)
        self.write(self.r_score, align='center', font=('Courier', 40, 'normal'))

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

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