Question

I’m new to Python, I still have issues with the semantics of class inheritance.

The following is the relevant class from the module games.py module that I am importing:

class Text(Sprite): 
    """ 
    Alphanumeric values displayed on the screen.
    """      
    def __init__(self, value, size, color, angle=0, 
                 x=0, y=0,
                 top=None, bottom=None, left=None, right=None,
                 dx=0, dy=0,
                 interval=1, is_collideable=True):
        self._size = size 
        self._color = color 
        self._value = value
        self._font = pygame.font.Font(None, self._size)
        Sprite.__init__(self, self._create_surface(), angle,
                        x, y,
                        top, bottom, left, right,
                        dx, dy,
                        interval, is_collideable)

and the following is from where I’m trying to call it in my own program:

self.scorebox = games.Text (value = self.scorevar,
                            pygame.font.Font(ardarlingopentype, 50),
                            color = color.white,
                            x = 550,
                            y = 50)

As you can see the syntax is wrong, but how do I go about fixing this such that I can inherit the class Text from my own program and make FONT an accessible argument that I can change?

Thanks.

Answer 1

Not sure(note that you can’t used not named arguments after named and/or mix them – you have used not named argument after ‘value’) but seems that you need to modify code the following way:

class Text(Sprite): 
    """ 
    Alphanumeric values displayed on the screen.
    """      
    def __init__(self, value, size, color, angle=0, 
                 x=0, y=0,
                 top=None, bottom=None, left=None, right=None, font=None,
                 dx=0, dy=0,
                 interval=1, is_collideable=True):
        self._size = size 
        self._color = color 
        self._value = value
        if font:
            self.font_ = font
        else:
            self._font = pygame.font.Font(None, self._size)
        Sprite.__init__(self, self._create_surface(), angle,
                        x, y,
                        top, bottom, left, right,
                        dx, dy,
                        interval, is_collideable)

And then:

import pygame
import games

self.scorebox = games.Text (value = self.scorevar,
                            size = 50,
                            color = color.white,
                            x = 550,
                            y = 50)

OR:

import pygame
import games

self.scorebox = games.Text (value = self.scorevar,
                            size = 50, 
                            font = pygame.font.Font(ardarlingopentype, 50),
                            color = color.white,
                            x = 550,
                            y = 50)