<filename>pong.py
import turtle
import time

wn = turtle.Screen()
wn.title("pong")
wn.bgcolor("black")
wn.setup(width=800, height=600)
wn.tracer(0)

# score
score_a = 0
score_b = 0


# paddle a
paddle_a = turtle.Turtle()
paddle_a.speed(0)
paddle_a.shape("square")
paddle_a.color("white")
paddle_a.shapesize(stretch_wid=5, stretch_len=1)
paddle_a.penup()
paddle_a.goto(-350, 0)

# paddle b
paddle_b = turtle.Turtle()
paddle_b.speed(0)
paddle_b.shape("square")
paddle_b.color("white")
paddle_b.shapesize(stretch_wid=5, stretch_len=1)
paddle_b.penup()
paddle_b.goto(350, 0)

# ball
ball = turtle.Turtle()
ball.speed(0)
ball.shape("square")
ball.color("white")
ball.penup()
ball.goto(0, 0)
ball.dx = 2
ball.dy = 2

# pen
pen = turtle.Turtle()
pen.speed(0)
pen.color("white")
pen.penup()
pen.hideturtle()
pen.goto(0, 260)
pen.write("Player A: 0    Player B: 0", align="center", font=("Courier", 24, "normal"))


# func
def paddle_a_up():
    y = paddle_a.ycor()
    y = y+20
    paddle_a.sety(y)

def paddle_a_down():
    y = paddle_a.ycor()
    y = y-20
    paddle_a.sety(y)

def paddle_b_up():
    y = paddle_b.ycor()
    y = y+20
    paddle_b.sety(y)

def paddle_b_down():
    y = paddle_b.ycor()
    y = y-20
    paddle_b.sety(y)

# keyboard binding
wn.listen()
wn.onkeypress(paddle_a_up, "w")
wn.onkeypress(paddle_a_down, "s")
wn.onkeypress(paddle_b_up, "Up")
wn.onkeypress(paddle_b_down, "Down")

# main game loop
while True:

    time.sleep(1 / 60)
    wn.update()

    #move the ball
    ball.setx(ball.xcor() +ball.dx)
    ball.sety(ball.ycor() +ball.dy)

    #borders
    if ball.ycor() > 290:
        ball.sety(290)
        ball.dy *= -1

    if ball.ycor() < -290:
        ball.sety(-290)
        ball.dy *= -1

    if ball.xcor() > 390:
        ball.goto(0, 0)
        ball.dx *= -1
        score_a += 1
        pen.clear()
        pen.write("Player A: {}    Player B: {}".format(score_a , score_b), align="center", font=("Courier", 24, "normal"))

    if ball.xcor() < -390:
        ball.goto(0, 0)
        ball.dx *= -1
        score_b += 1
        pen.clear()
        pen.write("Player A: {}    Player B: {}".format(score_a , score_b), align="center", font=("Courier", 24, "normal"))

    #collisions
    if ball.xcor() > 340 and ball.xcor() < 350 and ball.ycor() < paddle_b.ycor() + 40 and (ball.ycor() > paddle_b.ycor() -40):
        ball.setx(340)
        ball.dx *= -1

    if ball.xcor() < -340 and ball.xcor() > -350 and ball.ycor() < paddle_a.ycor() + 40 and (ball.ycor() > paddle_a.ycor() -40):
        ball.setx(-340)
        ball.dx *= -1

<filename>pong.py
import turtle
import time

wn = turtle.Screen()
wn.title("pong")
wn.bgcolor("black")
wn.setup(width=800, height=600)
wn.tracer(0)

# score
score_a = 0
score_b = 0


# paddle a
paddle_a = turtle.Turtle()
paddle_a.speed(0)
paddle_a.shape("square")
paddle_a.color("white")
paddle_a.shapesize(stretch_wid=5, stretch_len=1)
paddle_a.penup()
paddle_a.goto(-350, 0)

# paddle b
paddle_b = turtle.Turtle()
paddle_b.speed(0)
paddle_b.shape("square")
paddle_b.color("white")
paddle_b.shapesize(stretch_wid=5, stretch_len=1)
paddle_b.penup()
paddle_b.goto(350, 0)

# ball
ball = turtle.Turtle()
ball.speed(0)
ball.shape("square")
ball.color("white")
ball.penup()
ball.goto(0, 0)
ball.dx = 2
ball.dy = 2

# pen
pen = turtle.Turtle()
pen.speed(0)
pen.color("white")
pen.penup()
pen.hideturtle()
pen.goto(0, 260)
pen.write("Player A: 0    Player B: 0", align="center", font=("Courier", 24, "normal"))


# func
def paddle_a_up():
    y = paddle_a.ycor()
    y = y+20
    paddle_a.sety(y)

def paddle_a_down():
    y = paddle_a.ycor()
    y = y-20
    paddle_a.sety(y)

def paddle_b_up():
    y = paddle_b.ycor()
    y = y+20
    paddle_b.sety(y)

def paddle_b_down():
    y = paddle_b.ycor()
    y = y-20
    paddle_b.sety(y)

# keyboard binding
wn.listen()
wn.onkeypress(paddle_a_up, "w")
wn.onkeypress(paddle_a_down, "s")
wn.onkeypress(paddle_b_up, "Up")
wn.onkeypress(paddle_b_down, "Down")

# main game loop
while True:

    time.sleep(1 / 60)
    wn.update()

    #move the ball
    ball.setx(ball.xcor() +ball.dx)
    ball.sety(ball.ycor() +ball.dy)

    #borders
    if ball.ycor() > 290:
        ball.sety(290)
        ball.dy *= -1

    if ball.ycor() < -290:
        ball.sety(-290)
        ball.dy *= -1

    if ball.xcor() > 390:
        ball.goto(0, 0)
        ball.dx *= -1
        score_a += 1
        pen.clear()
        pen.write("Player A: {}    Player B: {}".format(score_a , score_b), align="center", font=("Courier", 24, "normal"))

    if ball.xcor() < -390:
        ball.goto(0, 0)
        ball.dx *= -1
        score_b += 1
        pen.clear()
        pen.write("Player A: {}    Player B: {}".format(score_a , score_b), align="center", font=("Courier", 24, "normal"))

    #collisions
    if ball.xcor() > 340 and ball.xcor() < 350 and ball.ycor() < paddle_b.ycor() + 40 and (ball.ycor() > paddle_b.ycor() -40):
        ball.setx(340)
        ball.dx *= -1

    if ball.xcor() < -340 and ball.xcor() > -350 and ball.ycor() < paddle_a.ycor() + 40 and (ball.ycor() > paddle_a.ycor() -40):
        ball.setx(-340)
        ball.dx *= -1

# score # paddle a # paddle b # ball # pen # func # keyboard binding # main game loop #move the ball #borders #collisions