Pygame Pong

Blank Pygame Template

import pygame

pygame.init()

win = pygame.display.set_mode((750, 500))

pygame.display.set_caption('Title')

run = True

while run:
    
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False
            
pygame.quit()

Part 1

import pygame

pygame.init()

win = pygame.display.set_mode((750, 500))

pygame.display.set_caption('Pong')

white = (255, 255, 255)
black = (0, 0, 0)

class Paddle(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface([10, 75])
        self.image.fill(white)
        self.rect = self.image.get_rect()
        self.points = 0
        
class Ball(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface([10, 10])
        self.image.fill(white)
        self.rect = self.image.get_rect()
        

paddle1 = Paddle()
paddle2 = Paddle()
ball = Ball()
paddle1.rect.x = 25
paddle1.rect.y = 250
paddle2.rect.x = 715
paddle2.rect.y = 250
ball.rect.x = 375
ball.rect.y = 250


all_sprites = pygame.sprite.Group()
all_sprites.add(paddle1, paddle2, ball)

def redraw():
    win.fill(black)
    all_sprites.draw(win)
    pygame.display.update()

run = True

while run:

    pygame.time.delay(100)

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

    redraw()

pygame.quit()

Part 2

import pygame

pygame.init()

win = pygame.display.set_mode((750, 500))

pygame.display.set_caption('Pong')

white = (255, 255, 255)
black = (0, 0, 0)

class Paddle(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface([10, 75])
        self.image.fill(white)
        self.rect = self.image.get_rect()
        self.points = 0

class Ball(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface([10, 10])
        self.image.fill(white)
        self.rect = self.image.get_rect()
        self.dirx = 1
        self.diry = 1


paddle1 = Paddle()
paddle2 = Paddle()
ball = Ball()
paddle1.rect.x = 25
paddle1.rect.y = 250
paddle2.rect.x = 715
paddle2.rect.y = 250
ball.rect.x = 375
ball.rect.y = 250


all_sprites = pygame.sprite.Group()
all_sprites.add(paddle1, paddle2, ball)

def redraw():
    win.fill(black)
    all_sprites.draw(win)
    pygame.display.update()

run = True

while run:

    pygame.time.delay(100)

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

    key = pygame.key.get_pressed()
    if key[pygame.K_w]:
        paddle1.rect.y += -10
    if key[pygame.K_s]:
        paddle1.rect.y += 10
    if key[pygame.K_UP]:
        paddle2.rect.y += -10
    if key[pygame.K_DOWN]:
        paddle2.rect.y += 10

    ball.rect.x += 10 * ball.dirx
    ball.rect.y += 10 * ball.diry
    
    if ball.rect.x < 10:
        ball.dirx = 1
    if ball.rect.x > 740:
        ball.dirx = -1
    if ball.rect.y < 10 :
        ball.diry = 1
    if ball.rect.y > 490 :
        ball.diry = -1


    redraw()

pygame.quit()

Final Code

# Imports and inits
import pygame

pygame.init()

# Window setup

win = pygame.display.set_mode((750, 500))

pygame.display.set_caption('Pong')

# Colors

white = (255, 255, 255)
black = (0, 0, 0)

# Sprite Classes

class Paddle1(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface([10, 75])
        self.image.fill(white)
        self.rect = self.image.get_rect()
        self.points = 0

class Paddle2(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface([10, 75])
        self.image.fill(white)
        self.rect = self.image.get_rect()
        self.points = 0

class Ball(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface([10, 10])
        self.image.fill(white)
        self.rect = self.image.get_rect()
        self.speed = 10
        self.dx = 1
        self.dy = 1

# Sprite Creation

paddle1 = Paddle1()
paddle1.rect.x = 25
paddle1.rect.y = 225

paddle2 = Paddle2()
paddle2.rect.x = 715
paddle2.rect.y = 225

paddle_speed = 10

pong = Ball()
pong.rect.x = 375
pong.rect.y = 250

# Group of Sprites

all_sprites = pygame.sprite.Group()
all_sprites.add(paddle1, paddle2, pong)

# Screen update function

def redraw():
    # Draws black screen
    win.fill(black)

    # Title font
    font = pygame.font.SysFont('Comic Sans MS', 30)
    text = font.render('PONG', False, white)
    textRect = text.get_rect()
    textRect.center = (750 // 2, 25)
    win.blit(text, textRect)

    # Player 1 Score
    p1_score = font.render(str(paddle1.points), False, white)
    p1Rect = p1_score.get_rect()
    p1Rect.center = (50, 50)
    win.blit(p1_score, p1Rect)

    # Player 2 Score
    p2_score = font.render(str(paddle2.points), False, white)
    p2Rect = p2_score.get_rect()
    p2Rect.center = (700, 50)
    win.blit(p2_score, p2Rect)

    # Updates all Sprites
    all_sprites.draw(win)

    # Draws updates
    pygame.display.update()

run = True

# Main Loop
while run:

    pygame.time.delay(100)

    # Quit Event
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

    # Paddle Movement
    key = pygame.key.get_pressed()
    if key[pygame.K_w]:
        paddle1.rect.y += -paddle_speed
    if key[pygame.K_s]:
        paddle1.rect.y += paddle_speed
    if key[pygame.K_UP]:
        paddle2.rect.y += -paddle_speed
    if key[pygame.K_DOWN]:
        paddle2.rect.y += paddle_speed

    # Moves pong ball
    pong.rect.x += pong.speed * pong.dx
    pong.rect.y += pong.speed * pong.dy

    # Wall and Paddle Bounces
    if pong.rect.y > 490:
        pong.dy = -1

    if pong.rect.y < 1:
        pong.dy = 1

    if pong.rect.x > 740:
        pong.rect.x, pong.rect.y = 375, 250
        pong.dx = -1
        paddle1.points += 1

    if pong.rect.x < 1:
        pong.rect.x, pong.rect.y = 375, 250
        pong.dx = 1
        paddle2.points += 1

    if paddle1.rect.colliderect(pong.rect):
        pong.dx = 1

    if paddle2.rect.colliderect(pong.rect):
        pong.dx = -1

    # Runs redraw function above
    redraw()

pygame.quit()