032419f30f
## About The Pull Request ice demons are now basic mobs. they still have their behavior where they can teleport around the player, run away from him and shoot him. they now also have a new ability they will only use when they are on their last legs, they will spawn weak and slow afterimage clones of theirselves to attack the player. damaging these clones will also damage the original ice demons. ice demons can also now be very easily countered as they are very afraid of fires. they will run away from you if they see u holding a lit torch/flare/welding tool and while running away they will freeze the floors around them to try to slip u to stop u from chasing them. ice demons now also get a new unique trophy! this trophy will summon 2 friendly spirits that will help you kill ur target, but these spirits will dissappear after a very short while. https://github.com/tgstation/tgstation/assets/138636438/6a48fb15-f447-441a-91c6-48ca120dc22c ## Why It's Good For The Game ## Changelog 🆑 refactor: ice demons have been refactored into basic mbos. please report any bugs add: ice demons now have a unique trophy /🆑
AI controllers
Introduction
Our AI controller system is an attempt at making it possible to create modularized AI that stores its behavior in datums, while keeping state and decision making in a controller. This allows a more versatile way of creating AI that doesn't rely on OOP as much, and doesn't clutter up the Life() code in Mobs.
AI Controllers
A datum that can be added to any atom in the game. Similarly to components, they might only support a given subtype (e.g. /mob/living), but the idea is that theoretically, you could apply a specific AI controller to a big a group of different types as possible and it would still work.
These datums handle both the normal movement of mobs, but also their decision making, deciding which actions they will take based on the checks you put into their SelectBehaviors proc.
If behaviors are selected, and the AI is in range, it will try to perform them. It runs all the behaviors it currently has in parallel; allowing for it to for example screech at someone while trying to attack them. As long as it has behaviors running, it will not try to generate new plans, making it not waste CPU when it already has an active goal.
They also hold data for any of the actions they might need to use, such as cooldowns, whether or not they're currently fighting, etcetera this is stored in the blackboard, more information on that below.
Blackboard
The blackboard is an associated list keyed with strings and with values of whatever you want. These store information the mob has such as "Am I attacking someone", "Do I have a weapon". By using an associated list like this, no data needs to be stored on the actions themselves, and you could make actions that work on multiple ai controllers if you so pleased by making the key to use a variable.
AI Behavior
AI behaviors are the actions an AI can take. These can range from "Do an emote" to "Attack this target until he is dead". They are singletons and should contain nothing but static data. Any dynamic data should be stored in the blackboard, to allow different controllers to use the same behaviors.
Guides:
Making Your AI: Quickly runs through how to make an ai controller for anything with a step by step development of one.