pygame精灵组有哪些方法_pygame编组（精灵组）Group中的常用方法介绍

说明：

1.以下所用的Group均为Group类的对象实例

2.Group类是对AbstractGroup类的继承

sprite.py文档中描述如下：

classGroup(AbstractGroup):"""container class for many Sprites

pygame.sprite.Group(*sprites): return Group

A simple container for Sprite objects. This class can be subclassed to

create containers with more specific behaviors. The constructor takes any

number of Sprite arguments to add to the Group. The group supports the

following standard Python operations:

in test if a Sprite is contained

len the number of Sprites contained

bool test if any Sprites are contained

iter iterate through all the Sprites

The Sprites in the Group are not ordered, so the Sprites are drawn and

iterated over in no particular order."""

def __init__(self, *sprites):

AbstractGroup.__init__(self)

self.add(*sprites)

方法一：Group.draw(surface)

说明：对精灵组中的每一个精灵依次调用surface.blit()，依次将精灵组中的精灵绘制在surface上

AbstractGroup类中对其的定义：

defdraw(self, surface):"""draw all sprites onto the surface

Group.draw(surface): return None

Draws all of the member sprites onto the given surface."""sprites=self.sprites()

surface_blit=surface.blitfor spr insprites:

self.spritedict[spr]=surface_blit(spr.image, spr.rect)

self.lostsprites= []

方法二：Group.update()

说明：对精灵组中的每一个精灵依次调用update()方法，并且update()方法需要自己在自己定义的精灵类中去实现

AbstractGroup类中对其的定义：

def update(self, *args):"""call the update method of every member sprite

Group.update(*args): return None

Calls the update method of every member sprite. All arguments that

were passed to this method are passed to the Sprite update function."""

for s inself.sprites():

s.update(*args)