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* Turns Deer into Basic Mob - They Freeze At The Sight of Vehicles (#74784) ## About The Pull Request deers only show up in the BEPIS but i decided that they would be easy enough to turn into a basic mob (they were). it was so easy in fact that i decided to dip my toes into coding AI behavior, and made them freeze up whenever they see a vehicle. this required a lot of code in a bunch of places that i was quite unfamiliar with before starting this project, so do let me know if i glonked up anywhere and i can work on smoothing it out. ## Why It's Good For The Game one less simple animal on the list. deers staring at headlights is pretty cool i think, neato interaction for when you do get them beyond the joke the bepis makes i'm also amenable to dropping the whole "deer in headlights" code if you don't like that for w/e reason- just wanted to make them basic at the very least ## Changelog 🆑 add: If you ever happen upon a wild deer, try not to ride your fancy vehicles too close to it as it'll freeze up like a... you know where I'm going with this. /🆑 --------- Co-authored-by: Mothblocks <35135081+Mothblocks@ users.noreply.github.com> * Turns Deer into Basic Mob - They Freeze At The Sight of Vehicles --------- Co-authored-by: san7890 <the@san7890.com> Co-authored-by: Mothblocks <35135081+Mothblocks@ users.noreply.github.com>
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.