A standard object creator class for pygame

""" This code can be used as a starting pointto create an object using pygame. Related to the code an object falls onto another object moving in a circular path and stays without falling off"""
import pygame

class object_factory(pygame.sprite.Sprite):
    #----------------------------------------------------------------------
    def __init__(self, imagelist, xpos = 0, ypos = 0, speedx = 0, speedy = 0, value = 0):
        """Constructor"""
        pygame.sprite.Sprite.__init__(self)
        self.name = ""
        self.frame = 0
        self.imagelist = imagelist
        self.image = imagelist[self.frame]
        self.mask = pygame.mask.from_surface(self.image) # pixelmask
        self.rect = self.image.get_rect()
        self.rect.x = xpos
        self.rect.y = ypos
        self.speedx = speedx
        self.speedy = speedy
        self.timer = 0
        self.timerlimit = 10

    #----------------------------------------------------------------------
    def update(self):
        """"""
        self.image = self.imagelist[self.frame]
        if self.timer >= self.timerlimit:
            self.frame += 1
            if self.frame >= len(self.imagelist):
                self.frame = 0
            self.timer = 0
        self.timer += 1

    #----------------------------------------------------------------------
    def collide(self, colwith):
        """"""
        hit_list = pygame.sprite.spritecollide(self, colwith, False, collided = pygame.sprite.collide_rect)

        for colob in hit_list:

            if self.rect.bottom > colob.rect.top:
                self.rect.bottom = colob.rect.top

                self.speedx = colob.speedx

                self.speedy += colob.speedy

                """when there was no change to self.speedy with regard to the platform the box fell off the left edge.

                when self.speedy = colob.speedy

                the box moved to the right and fell of the right edge after 36 rotations.

                But when self.speedy += colob.speedy

                and the box speed was restricted by the code below the box stayed on the platform even after 570 rotations and there was no visible displacement."""

                if self.speedy >= 4 or self.speedy <= 2:
                    self.speedy = 4

    def move(self):  # wallsprites, Herosprite, looptime
        self.rect.x += self.speedx
        self.rect.y += self.speedy