Pong

Niveau: Bron:Raf Schoenmaekers

Doel

Pong in Python.

Pong is …

Wat zal je leren?

…

Wat heb je nodig?

• Een werkende Python-installatie (inclusief pygame) (zie Installatie)
• Basiskennis Python (zie Starten met Python)
• Basiskennis pygame (zie Snake)

Aan de slag

Stappen: …

Mogelijke oplossing

import sys
import pygame

size = width, height = 1280, 720

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

ballSpeed = [2, 2]
ballRect = pygame.Rect(width / 2, height / 2, 10, 10)

racketOffset = 100
racketHeight = 100
racketWidth = 10

player1Rect = pygame.Rect(racketOffset - racketWidth,
                          (height - racketHeight) / 2,
                          racketWidth,
                          racketHeight)
player2Rect = pygame.Rect(width - racketOffset,
                          (height - racketHeight) / 2,
                          racketWidth,
                          racketHeight)

player1Speed = player2Speed = 0.0
playerAcceleration = 1.0
player1Score = player2Score = 0

# start game
pygame.init()
screen = pygame.display.set_mode(size)

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()

    # move ball
    ballRect = ballRect.move(*ballSpeed)

    if ballRect.left < 0 or ballRect.right > width:
        if ballRect.left < 0:
            player2Score += 1
        else:
            player1Score += 1
        print(f' SCORE {player1Score} - {player2Score}')
        # reset ball to center of screen
        ballRect.x = width / 2
        ballRect.y = height / 2

    if ballRect.top < 0 or ballRect.bottom > height:
        ballSpeed[1] = -ballSpeed[1]

    # move players
    player1Speed *= 0.9
    player2Speed *= 0.9

    key = pygame.key.get_pressed()

    if key[pygame.K_x]:
        player1Speed += playerAcceleration
    if key[pygame.K_s]:
        player1Speed -= playerAcceleration
    if key[pygame.K_UP]:
        player2Speed -= playerAcceleration
    if key[pygame.K_DOWN]:
        player2Speed += playerAcceleration

    player1Rect.y += player1Speed
    player2Rect.y += player2Speed

    if ballRect.colliderect(player1Rect):
        ballSpeed[0] = abs(ballSpeed[0])
    if ballRect.colliderect(player2Rect):
        ballSpeed[0] = -abs(ballSpeed[0])

    # start drawing
    screen.fill(black)
    pygame.draw.rect(screen, white, ballRect)
    pygame.draw.rect(screen, white, player1Rect)
    pygame.draw.rect(screen, white, player2Rect)

    # wait
    pygame.display.update()
    pygame.time.delay(10)