FAI is a thoroughly documented, incredibly performant, highly optimized AI system, that includes a powerful flocking system for all types of swarms/flocks with easy-to-use editor windows.
For more detail this asset from the Unity Asset Store: Click Here
This is a paid asset, but now you can download the “FAI – Fish AI & Flocks” for FREE. Please keep in mind that this package is provided only for learning purposes or to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
FAI – Fish AI Flocks v1.0.0
“If possible, please buy the package to support the developer”
FAI is the most powerful underwater AI system currently on the Unity Asset Store. It contains not only a system that can be used to simulate a broad underwater ecosystem (salmons, sharks, whales…) but also a powerful and deeply-optimized flocking system that can run +20,000 units at the same time at +100 FPS.
Demo
Documentation
Discord
Videos
Contact
For more information please check the “Technical details” section.
Models, materials, and animations are from “Underwater life deluxe” asset by Janpec.
Technical details
reFeatures of the AI system:
Main
An all-in-one script contains 4 behaviours and many features to control AIs.
4 main behaviours (Aggressive, Neutral, Passive, Passive Flee)
Flee or keep attacking on low health.
Wandering.
Attack other entities.
Recognize and don’t attack or flee from entities of the same type.
Forget the enemy once far enough and after a set number of seconds.
Damage enemies either from script or animation event.
Attack chance.
Field Of View and Line of Sight enemy detection.
Attack and movement animations blending.
Sounds for different AI states.
Optimized to only work once visible on a camera.
Assign event listeners with no coding required.
Field of view visualization in editor.
Spawning.
Navigation
A written-from-zero navigation system for smooth movement.
Smooth steering.
Obstacle avoidance.
Move only when inside water volume.
Vitals
Damaging.
Health.
Health regeneration.
Resistance.
Body decomposition.
Supports ragdoll.
Play sounds on death.
Features of the Flock system:
Complex flocking behaviour based on 4 simple behaviours (Align, Separate, Cohere, and Follow).
Obstacle Avoidance.
Water surface contact avoidance.
Health
Body decomposition.
Spawning.
Optimizations.
80% of the processing runs on the GPU (4 main behaviours), while 20% runs on the CPU (Obstacle avoidance) for best performance.
A simple shader to procedurally animate the movement of fish.
Editor
Extremely easy-to-use and well-designed editor windows to help you create AIs and flock units in minutes.
Demo
A simple script to control some of the demo scenes’ properties (Spawned flocks counts, camera movement speed…)
3 modelled, animated, ready-to-use AIs: Whale (Neutral), Shark (Aggressive), and Mahi Mahi (Passive Flee).
2 ready-to-use Flock Units: Mackerel and Emperor Angelfish.
1 Demo scene for AIs.
1 Demo scene for Flock Units.
A water enter/exit script controller to create the underwater illusion.
A over/under water based audio system (Head fish sound only when the camera is underwater).
Dependencies
Post Processing Stack
I am actively working on adding more features but I can’t promise anything about their release date, here are the top priority ones: Fixed Flock Group Count, Fixed Frame Rate Update(Optimization), and Flocks Attacking/Fleeing AIs.
