python中的类继承与pygame

如何解决python中的类继承与pygame

所以我正在开发一个业余爱好游戏，我无法让一个类正确继承另一个类。文件结构如下图：

main.py
Enemy
    |walker.py
    |genericEnemy.py

main.py 调用 walker.py，其主类继承自 genericEnemy.py。两者的内容如下：

walker.py

import pygame
from .genericEnemy import generic

class walker(generic):
    pass    

genericEnemy.py

'''
    This class controls generic capabilities for all enemies.
    Specific abilities are in the enemy type's class in the superfolder
'''

import pygame

class generic:
    def __init__(self,speed,pos,size):
        '''
            speed - The entity speed,an int greater than 0
            pos - The (x,y) position of the entity,a list of length 2
            size - The entity hitBox,a list with length 2
        '''

        #Movement Variables
        self.speed = speed
        self.currDir = 1
        self.isMoving = True

        #Drawing Variables
        self.pos = pos
        self.size = size

        #Gravity Variables
        self.isJumping = False
        self.fallCounter = 0
        self.gravityTimer = 0

#==================================================

        def draw(self,surface):
            pygame.draw.rect(surface,(255,0),(self.pos[0],self.pos[1],self.size[0],self.size[1]))

#==================================================

        def updateGravity(self):
            self.fallCounter += 1
            
            if self.fallCounter == 8:
                self.fallCounter = 0
                self.gravityTimer += 1

#==================================================

        def walk(self):
            if self.isMoving:
                self.pos[0] += self.speed * self.currDir

我遇到的主要问题是：

SCREEN = pygame.display.set_mode((0,pygame.FULLSCREEN)
ENEMY = walker(6,[120,1000],[10,30])

然后在

ENEMY.draw(SCREEN)

我收到错误：AttributeError: 'walker' object has no attribute 'draw'

任何帮助将不胜感激，就像我说这是一个业余项目，所以我在 python/pygame 中相当缺乏经验

解决方法

用户 Barmar 是正确的。我，作为一个绝对的核桃，我的功能缩进了太多。

,

使用class generic(pygame.sprite.Sprite):
和

all_sprites = pygame.sprite.Group()
all_sprites.add(ENEMY)
all_sprites.draw(SCREEN)

pygame 精灵组有 draw function
也许它需要 sprite.image！
它可以是表面

self.image = pygame.Surface([self.size[0],self.size[1]])
self.image.fill((255,0))

或图片文件

self.image = pygame.transform.scale(pygame.image.load(imgname).convert_alpha(),(self.size[0],self.size[1]))