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所以我在 pygame 中制作了一个玩家对象,我让一个精灵加载器加载图像,将对象设置为具有该图像,并获取它的一个矩形对象。

但是,当我尝试在 main 中对其进行测试时,出现此错误

AttributeError: type object 'newPlayer' has no attribute 'rect'

但是我的 newPlayer 类中有这一行

self.rect = self.image.get_rect()

到底是怎么回事?我与游戏中的其他对象有几乎相同的代码,并且它们可以正常工作。

完整代码:

import pygame

# Define some colors
black    = (   0,   0,   0)
white    = ( 255, 255, 255)
red      = ( 255,   0,   0)

#initialize pygame
pygame.init()

#set the height and width of the screen
width = 800
height = 480

mainScreen = pygame.display.set_mode([width,height])

#A list of all of the sprites in the game
all_sprites_list = pygame.sprite.Group()


def sprite_sheet_load(colorKey, spriteLocX, spriteLocY, spriteSizeX, spriteSizeY, fileName):
    '''Purpose: to extract a sprite from a sprite sheet at the chosen location'''
    '''credit to SO user hammyThePig for original code'''

    sheet = pygame.image.load(fileName).convert() #loads up the sprite sheet. convert makes sure the pixel format is coherent
    sheet.set_colorkey(colorKey) #sets the color key

    sprite = sheet.subsurface(pygame.Rect(spriteLocX, spriteLocY, spriteSizeX, spriteSizeY)) #grabs the sprite at this location

    return sprite

class newPlayer(pygame.sprite.Sprite):
    '''class that builds up the player'''
     #constructor function
    def __init__(self): #create a self variable to do stuff

        #call up the parent's constructor
        pygame.sprite.Sprite.__init__(self)

        img = "mainCharacterFinal.png"

        #size of each sprite
        sprite_sizeX = 35
        sprite_sizeY = 37

        #List of images for different types of movement
        self.imagesLeft = []

        self.imagesRight = []

        self.imagesUp = []

        self.imagesDown = []

        #these two variables go and help reset the position variables of the sprites
        xInit = 35
        yInit = 37

        #inital positions of sprites on the sheet
        positionX = 0
        positionY = 0

        colorKey = white #colorKey to pass to the function

        self.imagesUp.append(sprite_sheet_load(black, positionX, positionY, sprite_sizeX, sprite_sizeY, img))


        #the best image to use by default is the one that has the player facing the screen.
        self.image=self.imagesUp[0]


        self.rect = self.image.get_rect()

newplayer = newPlayer()
all_sprites_list.add(newplayer)
newPlayer.rect.x = 300
newPlayer.rect.y = 300

#a conditional for the loop that keeps the game running until the user Xes out
done = False

#clock for the screen updates
clock = pygame.time.Clock()


while done==False:
    for event in pygame.event.get(): #user did something
        if event.type == pygame.QUIT: #if the user hit the close button
                done=True

    mainScreen.fill(white)#makes the background white, and thus, the white part of the images will be invisible

    #draw the sprites
    all_sprites_list.draw(mainScreen)

    #limit the game to 20 fps
    clock.tick(20)

    #update the screen on the regular
    pygame.display.flip()

pygame.quit()
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1 回答 1

1

你必须写

    newplayer 

而不是 newPlayer 在各自的地方。这是因为 rect 是类实例的属性,而不是类本身,当您尝试编写时

    newPlayer.rect 

您正在尝试访问不存在的 newPlayer 类的 rect 属性,因此您必须编写

    newplayer.rect

尝试

    newplayer.rect.x = 300
    newplayer.rect.y = 300

检查以下链接:- Python:类和实例属性之间的区别

于 2013-10-23T16:42:13.237 回答