如何解决__init__() 缺少 1 个必需的位置参数:'ship_img'
我正在 pygame 中编写游戏,但是我无法在选项菜单中更改精灵的颜色。我试图将 self.ship_img 推入一个可从选项菜单访问的 var 中。英语不是我的主要语言,所以如果有什么不清楚的地方,我很抱歉。这是我的第一个 python 项目,所以我会在这个过程中学习语言
YELLOW_SPACE_SHIP = pygame.image.load(os.path.join("assets","pixel_ship_yellow.png"))
PURPLE_SPACE_SHIP = pygame.image.load(os.path.join("assets","pixel_ship_purple.png"))
GREEN1_SPACE_SHIP = pygame.image.load(os.path.join("assets","pixel_ship_green.png"))
class Ship:
COOLDOWN = 30
def __init__(self,x,y,health=100):
self.x = x
self.y = y
self.health = health
self.laser_img = None
self.lasers = []
self.cool_down_counter = 0
class Player(Ship):
def __init__(self,ship_img,health=100 ):
super().__init__(x,health)
self.ship_img = ship_img
self.laser_img = YELLOW_LASER
self.mask = pygame.mask.from_surface(self.ship_img)
self.max_health = health
def options():
ship_img = None
while run:
if button_green.collidepoint((mx,my)):
if click:
ship_img = GREEN1_SPACE_SHIP
if button_purple.collidepoint((mx,my)):
if click:
ship_img = PURPLE_SPACE_SHIP
if button_yellow.collidepoint((mx,my)):
if click:
ship_img = YELLOW_SPACE_SHIP
return ship_img
解决方法
函数options
中的循环是一个无限循环。删除循环,但在应用程序循环中调用 options
:
def options():
ship_img = None
if click:
if button_green.collidepoint((mx,my)):
ship_img = GREEN1_SPACE_SHIP
if button_purple.collidepoint((mx,my)):
ship_img = PURPLE_SPACE_SHIP
if button_yellow.collidepoint((mx,my)):
ship_img = YELLOW_SPACE_SHIP
return ship_img
要更改现有对象的图像,请将 change_image
方法添加到 Player
类:
class Player(Ship):
# [...]
def change_image(self,ship_img):
self.ship_img = ship_img
点击按钮时调用方法:
def options(ship):
if click:
if button_green.collidepoint((mx,my)):
ship.change_image(GREEN1_SPACE_SHIP)
if button_purple.collidepoint((mx,my)):
ship.change_image(PURPLE_SPACE_SHIP)
if button_yellow.collidepoint((mx,my)):
ship.change_image(YELLOW_SPACE_SHIP)
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