python位置参数错误

python位置参数错误

我正在做一个游戏作为一个有趣的副项目，我遇到了这个错误，我真的不知道为什么会发生。。。

代码如下：class players:

def __init__(self, location, image_file, direction):

self.location = location

self.image_file = image_file

self.direction = direction

def turn(self, direction, playerImages):

keys = _pressed()

if keys[pygame.K_a] == True:

self.direction -= 1

if self.direction < -3:

self.direction = 3

if keys[pygame.K_d] == True:

self.direction = 1

if self.direction > 3:

self.direction = 3

if self.direction == -3:

self.image_file = playerImages[0]

if self.direction == -2:

self.image_file = playerImages[1]

if self.direction == -1:

self.image_file =