All mobs should call parent Life()

[Drulikar]

About the pull request

This PR simply ensures all mobs (was only simple mobs and decoys that didn't already) call parent so the away_timer is always updated. I also did some minor refactoring for clarity.

Explain why it's good for the game

away_timer should always be updated.

Testing Photographs and Procedure

Screenshots & Videos

Changelog

:cl: Drathek fix: Simple mobs and decoys now update away_timer refactor: Calling parent for Life() is now required as well as other minor Life() refactoring /:cl: