import pygame

class Item(pygame.sprite.Sprite):
    def __init__(self,x,y,w,h,name):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.Surface((w,h)).convert()  # 添加一个空的图层使其各自有一个宽高
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.name = name

class Checkpoint(Item):
    def __init__(self,x,y,w,h,checkpoint_type,enemy_groupid=None,name='checkpoint'):
        Item.__init__(self,x,y,w,h,name)
        self.checkpoint_type = checkpoint_type
        self.enemy_groupid = enemy_groupid