jogo clássico pong!

pong

# pong!
import pygame

BLACK = (0, 0, 0)
RED = (255, 0, 0)
GREEN = (0, 255, 0)
# Coordenadas p1, p2 and ball
x1 = 490
y1 = 250
x2 = 0
y2 = 250
xb = 300
yb = 300

dbo = 'left'
dbv = 'down'

scorep1 = 0
scorep2 = 0

clock = pygame.time.Clock()
screen = pygame.display.set_mode((500, 500))
pygame.display.set_caption("My game" + "Score player 1: " + str(scorep1) + " - Score player 2: " + str(scorep2))

pygame.init()


def ball():
    "Draw the ball"
    global xb, yb
    pygame.draw.ellipse(screen, GREEN, (xb, yb, 10, 10))


def sprite1(x, y):
    "Draw Player 1"
    pygame.draw.rect(screen, RED, (x, y, 10, 50))


def sprite2(x, y):
    "Draw Player 2"
    pygame.draw.rect(screen, GREEN, (x, y, 10, 50))


def move_ball(x, y):
    "The ball moves"
    global xb, yb, dbo, dbv
    if dbo == "left":
        xb -= 10
    if dbv == 'down':
        yb += 10
        if yb > 490:
            dbv = 'up'
    if dbv == 'up':
        yb -= 10
        if yb < 10:
            dbv = 'down'
    if dbo == "right":
        xb += 10


def collision():
    global x1, y1  # the player 1 x and y (on the right)
    global x2, y2  # the player 2 x and y (on the left)
    global xb, yb  # the ball x and y
    global dbo
    global scorep1, scorep2
    if dbo == "left":
        if xb < 10:
            if yb >= y2 and yb < y2 + 50:
                dbo = "right"
            else:
                pygame.draw.ellipse(screen, BLACK, (xb, yb, 10, 10))
                pygame.display.update()
                xb, yb = 300, 300
                scorep2 += 10
                pygame.display.set_caption(
                    "My game" + "Score player 1: " + str(scorep1) + " - Score player 2: " + str(scorep2))
    else:
        if xb > 480:
            if yb >= y1 and yb < y1 + 50:
                dbo = "left"
            else:
                pygame.draw.ellipse(screen, BLACK, (xb, yb, 10, 10))
                pygame.display.update()
                xb, yb = 300, 300
                scorep1 += 10
                pygame.display.set_caption(
                    "My game" + "Score player 1: " + str(scorep1) + " - Score player 2: " + str(scorep2))


def move1():
    global y2
    if y2 <= 450:
        if keys[pygame.K_z]:
            y2 += 20
    if y2 > 0:
        if keys[pygame.K_a]:
            y2 -= 20


def move2():
    global y1
    if y1 <= 450:
        if keys[pygame.K_m]:
            y1 += 20
    if y1 > 0:
        if keys[pygame.K_k]:
            y1 -= 20


loop = 1
while loop:
    keys = pygame.key.get_pressed()
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            loop = 0
    move1()
    move2()
    move_ball(xb, yb)
    ball()
    sprite1(x1, y1)
    sprite2(x2, y2)
    collision()
    pygame.display.update()
    screen.fill((0, 0, 0))
    clock.tick(30)

pygame.quit()