How can I just draw a specific sprite in a Group with pygame draw()?

python pygame draw

10,711

Solution 1

First, add a self.type to your each of your sprites. Give it a value, such as self.type = 1. Then call this when you want to draw a certain sprite or group of sprites:

for sprite in group: #Replace group with your sprite group
    if sprite.type == 1: #Or whatever type you want
        sprite.draw(screen)
    elif sprite.type == 2:
        sprite.draw(screen)
    #Etc...

Next, in your sprite class make sure you inherit from pygame.sprite.Sprite:

class my_sprite_class(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__()
        #Etc...

    #Add this draw function so we can draw individual sprites
    def draw(self, screen):
        screen.blit(self.image, self.rect)

I forgot that individual sprites don't have a draw function, just the groups. @pmoleri @jackdh my bad

Please read this post here to get an idea of what the class can do.

If you have any more questions just comment below.

Solution 2

You could blit any individual sprite, but I don't recommend it. This would be the way:

sprite = stuff_to_draw.sprites()[0]
screen.blit(sprite.image, sprite.rect)

My recommendation is to keep in the Sprites Group what you want to draw at a moment, and keep the rest in a separate list or group.

10,711

Author by

Jack

Updated on June 05, 2022

Comments

Jack almost 2 years
```
<Group(4 sprites)>
```
I have 4 sprites in a group they all ready to draw with the line,
```
stuff_to_draw.draw(screen)
```
They all currently draw at the same time.

Is it possible to do something like this
```
stuff_to_draw[0].draw(screen)
```
I've looked at documentation for pygame Groups, but can not find any helpful information about selecting a specific element in the group.

What am I trying to achieve?

The sprite group currently holds a answer sprite which consists of a location (x,y) and a image of the letter to blit.

Currently across all maps the answer is blitted instead of on the current question. So I would like to be able to say on question one stuff_to_draw[0] then question two stuff_to_draw[1].
Jack about 10 years

Why would you not recommend it? Would you mind showing me how I would do it anyway for educational purposes?
pmoleri about 10 years

Because Sprites Groups are meant for drawing all its elements, and some advanced groups (ex: RenderUpdates) can even keep track of every updated area to make optimizations in the update of the screen.
pmoleri about 10 years

Sprite.draw() doesn't exist.
Remolten about 10 years

Yes it does, if you're using pygame.sprite.Sprite. You usually use pygame.sprite.Sprite with pygame's sprite Groups. And please don't downvote an answer because it isn't yours. Thank you :)
Jack about 10 years

Hi I tried this, and I pass it correctly as seen gist.github.com/jackdh/58732728834f2b8f7338 although I get a error. gist.github.com/jackdh/a398887c329ec7fb9aaa Any idea why?
pmoleri about 10 years

@Remolten it doesn't: pygame.sprite.Sprite().draw(None) gives: 'Sprite' object has no attribute 'draw'. And your assumption of me downvoting because it isn't my answer, is really far from true.
Remolten about 10 years

Please read my new edited post above. It should work. @pmoleri no offense intended bro :)
pmoleri about 10 years

@Remolten I read the updated post but it still doesn't have a draw() method. If you want one you need to implement it in my_sprite_class.
Remolten about 10 years

Please read the link. When you subclass pygame.sprite.Sprite you are making my_sprite_class a "child" of it. That mean it inherits all of the pygame.sprite.Sprite class' functions etc. One of these is the draw(screen) function.
Jack about 10 years

I've tried using your edited version although It still gives me the errors Enzone has no attribute draw. gist.github.com/jackdh/ee17a9042604e5c4dd33 Thanks for the help so far!
Remolten about 10 years

My bad guys, didn't write my answer correctly. Should work now I hope.