AttributeError: 'pygame.mask.Mask' object has no attribute 'rect'

Question

我正在尝试获得像素完美碰撞，但我一直运行进入此错误：

Traceback (most recent call last):
  File "D:\Projects\games\venv\lib\site-packages\pygame\sprite.py", line 1528, in collide_circle
    xdistance = left.rect.centerx - right.rect.centerx
AttributeError: 'pygame.mask.Mask' object has no attribute 'rect'

Process finished with exit code 1

我不确定出了什么问题。是我的实现或逻辑还是两者兼而有之？

我的代码：


class AlienShooting(pygame.sprite.Sprite):

    def __init__(self, w=640, h=640):

        # init display

        # init game state
        self.spaceship_main = pygame.image.load('spacecraft_1.png').convert_alpha()

        self.alien_spacecraft1 = pygame.image.load('spacecraft_alien.png').convert_alpha()

        self.alien_spacecraft_rec1 = self.alien_spacecraft1.get_rect()

        self.mask1 = pygame.mask.from_surface(self.alien_spacecraft1)

        self.main_spaceship_mask = pygame.mask.from_surface(self.spaceship_main)


    def play_step(self):
        # user input

        # Move the spaceship

        # check if game over
        game_over = False
        if self._is_collision():
            game_over = True

        # Add new alien spaceships

        # Randomly move alien spaceships

        # update ui and clock

        # return game over and score
        return False

    def _is_collision(self):
        if pygame.sprite.collide_circle(self.mask1, self.main_spaceship_mask):
            return True
        return False

可能是因为我的主space飞船和外星人space飞船在同一个class，但我不确定。

Answer 1

查看 How do I detect collision in pygame? and . If you want to use pygame.sprite.collide_circle() or pygame.sprite.collide_mask you have to create pygame.sprite.Sprite 个对象。
spaceship_main 和 alien_spacecraft1 必须是 Sprite 对象。 Sprite 对象必须具有 rect 和 image 属性，并且可以选择具有 mask 属性。

例如：

class AlienShooting():
    def __init__(self, w=640, h=640):

        self.spaceship_main = pygame.sprite.Sprite()
        self.spaceship_main.image = pygame.image.load('spacecraft_1.png').convert_alpha()
        self.spaceship_main.rect = self.spaceship_main.image.get_rect(center = (140, 140))
        self.spaceship_main.mask = pygame.mask.from_surface(self.spaceship_main.image)

        self.alien_spacecraft1 = pygame.sprite.Sprite()
        self.alien_spacecraft1.image = pygame.image.load('spacecraft_alien.png').convert_alpha()
        self.alien_spacecraft1.rect = self.alien_spacecraft1.image.get_rect(center = (160, 160))
        self.alien_spacecraft1.mask = pygame.mask.from_surface(self.alien_spacecraft1.image)

    def _is_collision(self):
        if pygame.sprite.collide_mask(self.spaceship_main, self.alien_spacecraft1):
            return True
        return False

AttributeError: 'pygame.mask.Mask' object has no attribute 'rect'

AttributeError: 'pygame.mask.Mask' object has no attribute 'rect'

python

pygame

game-development

pygame-surface