Pygame: Groups Cheat Sheet

Pygame has a Group class which makes working with a group of similar objects easier. A group is like a list, with some extra functionality that’s helpful when building games

Making and filling a group

An object that will be placed in a group must inherit from Sprite.

from pygame.sprite import Sprite, Group
def Bullet(Sprite):
    ...
    def draw_bullet(self):
    ...
    def update(self):
    ...
bullets = Group()
new_bullet = Bullet()
bullets.add(new_bullet)

Looping through the items in a group

The sprites() method returns all the members of a group

for bullet in bullets.sprites():
     bullet.draw_bullet()

Calling update() on a group

Calling update() on a group automatically calls update() on each member of the group

bullets.update()

Removing an item from a group

It’s important to delete elements that will never appear again in the game, so you don’t waste memory and resources.

bullets.remove(bullet)