Tactical AI Kit

Tactical AI Kit is a behavior-tree-driven combat AI framework for Unity 2022.3+. It gives you a complete, extensible architecture for building combat agents — ships, drones, turrets, soldiers — without locking you into a specific physics or movement system.

WHAT'S INCLUDED

A behavior tree engine with Sequence, Selector (reactive), and Parallel composites. Each agent gets its own runtime clone of the tree at startup — no shared state corruption between agents.

8 combat action nodes: pursue rear arc, face target, move to target, fire weapon, flee, patrol, strafe, orbit, and evasive maneuver.

6 condition nodes: has target, health below threshold, in orbit range, being tailed, in target rear arc, has ally.

Utility AI targeting via TargetPicker — OverlapSphere candidate scan with team-aware claim spreading, a commitment threshold to prevent target flapping, and a pluggable scorer interface.

4 built-in scorers: distance, health, damage output, and BusyEnemyScorer — a scorer that preferentially targets enemies already engaged with your teammates, producing emergent flanking behaviour without any explicit coordination code.

4 clean interface contracts your game objects implement: ITargetable, IDamageable (with directional hit vector for armour and shield systems), IWeaponSystem, and IAgentAgility (speed-scaled turn rate). No forced inheritance. Plug into your own MonoBehaviours.

One-click 4v4 demo scene via Tools > TacticalAIKit > Setup Demo Scene. Ships have directional damage (rear hits deal 2×), per-ship agility variation, and teamwork via the BusyEnemyScorer. Demonstrates real emergent behaviour: 2v1 flanking, last-ship evasion, critical-health fleeing.

Full BT diagnostics — throttled logging per agent, Tools menu toggles, and a BTDiagnosticsEnabler component for in-scene control.

Fast Enter Playmode ready — all static state resets cleanly with Domain Reload disabled.

IS THE CONTENT CUSTOMIZABLE?

Yes, extensively. Tactical AI Kit ships with full C# source code, no DLLs:

- Add new BT action or condition nodes by inheriting BTLeaf. One method to implement.

- Add new scorers by implementing ITargetScorer. One method to implement.

- Combine scorers in a WeightedScorerSet ScriptableObject — no code.

- All four interfaces are thin contracts. Implement on your own MonoBehaviours. Vary IAgentAgility.CurrentTurnRate dynamically based on speed, damage, energy, or anything else.

- IDamageable.TakeDamage passes a hit direction vector so you can implement directional armour, shield arcs, or hit-location effects.

- The BehaviorTreeAsset editor draws your tree recursively and lets you pick node types from a menu — no manual type entry.

- Two assembly definitions isolate TacticalAIKit's compilation.

IS IT SUITABLE FOR A PARTICULAR GENRE?

Tactical AI Kit is built for real-time Rigidbody-based combat. It fits cleanly into:

- Spaceship and aerial dogfights

- Drone swarm combat

- Top-down vehicle combat

- Tower defence wave enemies

- Any game where you want group tactics (flanking, focus fire, evasion) without hard-coding coordination

KEY FEATURES

- Reactive BTSelector: higher-priority branches (flee, evade) always pre-empt lower ones the moment their condition is true

- Per-agent runtime BT clone: no shared-state bugs between agents

- BTActionPursueRearArc: forward-only thrust with anti-slip damping for arcing turns — agents pursue the point behind the target

- BusyEnemyScorer: emergent 2v1 flanking with no explicit coordination code

- IAgentAgility: expose speed-scaled or damage-scaled turn rate per agent, read every tick

- Directional damage via IDamageable.TakeDamage hit direction vector

- One-click demo scene generator (Tools > TacticalAIKit > Setup Demo Scene)

- BTDiagnostics: throttled per-agent BT logging, Tools menu toggles, in-scene enabler component

- Full C# source code, no DLLs, no obfuscation

- Two assembly definitions for fast incremental compilation

- Fast Enter Playmode compatible (Domain Reload disabled)

- Unity 2022.3 LTS or newer

- Zero external dependencies