python sprite list如何工作？ 我可以将精灵坐标添加到列表中吗？

Question

Hello there dear friends, for my python project, I made a button class -and their images, coords, actions and so on- and things working good. But I think I will add lots of buttons in the game so I decided to add them to a one pygame sprite group with their coordinates and blit automatically with a for loop.

 for oge in buttonList:
    pygame.blit(oge, (x, y)

is there a way can I add sprites with their coords to groups or lists, to blit them all together?

Answer 1

Short answer:

If each sprite has an attribute .rect and .image , then you can call .draw() :

buttonList.draw(surf)

---

Long answer:

A pygame.sprite.Sprite object should have a .rect property of type pygame.Rect this attribute defines the position (and size) of the sprite.

In the following I assume that buttonList is a pygame.sprite.Group .
Each Sprite in the Group shuold have a .rect property which is used to draw the sprite at its location eg:

class MySprite(pygame.sprite.Sprite):

    def __init__(self):
        super().__init__() 

        self.image = [...]
        self.rect  = self.image.get_rect()

All the sprite of the group can be drawn by on call. The parameter surf can be any surface, eg the display surface:

buttonList.draw(surf)

Note, the draw() method of the pygame.sprite.Group draws the contained Sprites onto the Surface. The .image of each sprite is "blit" at the location .rect .

pygame.Rect has a lot of virtual attributes, to set its position (and size) eg .center or .topleft . Use them to set the position of the sprite:

mysprite = MySprite()
mysprite.rect.topleft = (x, y)

Of course, the position (x, y) can be a parameter the constructor of the sprite class, too:

class MySprite(pygame.sprite.Sprite):

    def __init__(self, x, y):
        super().__init__() 

        self.image = [...]
        self.rect  = self.image.get_rect(topleft = (x, y))

mysprite = MySprite(x, y)