Question

I wrote a Pong Project on CodeHs (Python) (turtle) and my code doesn't work can you guys help me:

#this part allows for the turtle to draw the paddles, ball, etc
import turtle

width = 800
height = 600

#this part will make the tittle screen
wn = turtle.Screen()
turtle.Screen("Pong Game")
wn.setup(width, height)
wn.bgcolor("black")
wn.tracer(0)

#this is the score
score_a = 0
score_b = 0

#this is the player 1 paddle
paddle_a = turtle.Turtle()
paddle_a.speed(0)
paddle_a.shape("square")
paddle_a.color("white")
paddle_a.shape.size(stretch_wid = 5, stretch_len = 1)
paddle_a.penup()
paddle_a.goto(-350, 0)

#this is the player 2 paddle
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)

#this is the 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"))

#this is a really important code, this part makes it move players 1 and 2 paddles
def paddle_a_up():
y = paddle_a.ycor()
y += 20
paddle_a.sety(y)

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

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

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

#these are the controls for the paddles
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")

#this is the main game loop
while True:
wn.update()

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

#this is if the ball goes to the the other players score line
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"))

# this makes the ball bounce off the paddles
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

Answer 1

Try this!

Step-by-step explanation:

# This part allows for the turtle to draw the paddles, ball, etc

import turtle

width = 800

height = 600

# This part will make the title screen

wn = turtle.Screen()

wn.title("Pong Game")

wn.setup(width, height)

wn.bgcolor("black")

wn.tracer(0)

# This is the score

score_a = 0

score_b = 0

# This is the player 1 paddle

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)

# This is the player 2 paddle

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)

# This is the 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"))

# This is a really important code, this part makes it move players 1 and 2 paddles

def paddle_a_up():

y = paddle_a.ycor()

y += 20

paddle_a.sety(y)

def paddle_a_down():

y = paddle_a.ycor()

y -= 20

paddle_a.sety(y)

def paddle_b_up():

y = paddle_b.ycor()

y += 20

paddle_b.sety(y)

def paddle_b_down():

y = paddle_b.ycor()

y -= 20

paddle_b.sety(y)

# These are the controls for the paddles

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")

# This is the main game loop

while True:

wn.update()

# This will move the ball

ball.setx(ball.xcor() + ball.dx)

ball.sety(ball.ycor() + ball.dy)

# This is if the ball goes to the other player's score line

if ball.ycor() > 290:

ball.sety(290)

ball.dy *= -1

if ball.ycor() < -290:

ball.sety(-290)

ball.dy *= -1