[BUG] Cat sprite not generating correctly when init with no arguments

[j-gynn]

Type: (only select one)

• Sprite - an issue with the art in the game
• Code - general bugs related to how the game runs and responds to you.

Describe the bug If a cat is instantiated with default/no arguments, the cat's sprite is broken. Traceback (note that the TODO has been added by me):

Grade: (only select one)

• Dire - Still playable, but a major feature is broken

Reproduce Steps to reproduce the behavior:

1. Run cat = Cat()
2. Check the value of cat.sprite.

Commit # or Game Version Number: Development, 7c03e8a4