By registering with us, you'll be able to discuss, share and private message with other members of our community.

SignUp Now!
  • Guest, before posting your code please take these rules into consideration:
    • It is required to use our BBCode feature to display your code. While within the editor click < / > or >_ and place your code within the BB Code prompt. This helps others with finding a solution by making it easier to read and easier to copy.
    • You can also use markdown to share your code. When using markdown your code will be automatically converted to BBCode. For help with markdown check out the markdown guide.
    • Don't share a wall of code. All we want is the problem area, the code related to your issue.

    To learn more about how to use our BBCode feature, please click here.

    Thank you, Code Forum.

Python How do I remove the background of an image (Pygame)


Active Coder
I tried using Gimp to make an alpha channel, I tried using convert_alpha(); how do I remove the background of an image on pygame?

import random
import pygame, sys

def ball_restart():
    global ball_speed_x, ball_speed_y

    ball.center = (screen_width/2, screen_height/2)
    ball_speed_y *= random.choice((1,-1))
    ball_speed_x *= random.choice((1,-1))

def ball_animation():
    global ball_speed_x, ball_speed_y

    ball.x += ball_speed_x
    ball.y += ball_speed_y

    if ball.top <= 0 or ball.bottom >= screen_height:
        ball_speed_y *= -1
    if ball.left <= 0:
    if ball.right >= screen_width:

    if ball.colliderect(player) or ball.colliderect(opponent):
        ball_speed_x *= -1

clock = pygame.time.Clock()

screen_width = 1280
screen_height = 960
screen = pygame.display.set_mode((screen_width,screen_height))

ball = pygame.Rect(screen_width/2 - 15, screen_height/2 - 15, 30,30)
player = pygame.Rect(screen_width - 20, screen_height/2 - 70, 10,140)
opponent = pygame.Rect(10, screen_height/2 - 70, 10,140)

bg_color = pygame.Color("white")
black = pygame.Color("black")

ball_speed_x = 7
ball_speed_y = 7
player_speed = 0
opponent_speed = 7

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

        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP:
                player_speed -=7

        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_DOWN:
                player_speed +=7

        if event.type == pygame.KEYUP:
            if event.key == pygame.K_UP:
                player_speed +=7

        if event.type == pygame.KEYUP:
            if event.key == pygame.K_DOWN:
                player_speed -=7


    # Player

    player.y += player_speed

    if player.top <= 0:
        player.top = 0
    if player.bottom >= screen_height:
        player.bottom = screen_height

    # Opponent

    if opponent.top < ball.y:
        opponent.top += opponent_speed
    if opponent.bottom > ball.y:
        opponent.bottom -= opponent_speed

    if opponent.top <= 0:
        opponent.top = 0
    if opponent.bottom >= screen_height:
        opponent.bottom = screen_height

    pygame.draw.rect(screen, black, player)
    pygame.draw.rect(screen, black, opponent)
    pygame.draw.ellipse(screen, black, ball)
    pygame.draw.aaline(screen, black, (screen_width/2,0), (screen_width/2, screen_height))


New Threads

Latest posts

Buy us a coffee!

Top Bottom