Utility AI Pack – Extension Pack for BTGraph

Bring intelligent, score-driven decision-making to your BTGraph Behavior Trees with a fully integrated Utility AI system designed for production use.

The Utility AI Pack adds a native Utility Selector node to BTGraph, enabling smart action selection based on dynamic scoring. Instead of rigid priority order, actions compete using composable score sources, curves, weights, clamps, and thresholds — resulting in responsive, adaptive AI behavior.

This is not a bolt-on framework. It follows BTGraph’s naming conventions, patterns, and authoring workflow to feel like a natural extension of the core system.

Smart Score-Based Decisions

• Add Utility AI to existing BTGraph trees
• Native-feeling Utility Selector node
• Composable scoring with plug-and-play score sources and modifiers
• Fine-tune behavior using curves, weights, clamps, and thresholds
• Continuous reevaluation for real-time adaptive AI
• Safe branch switching while actions are running

Rich Runtime Visualization (No Pro Required)

The Utility AI Pack includes powerful debugging tools out of the box:

• Live runtime score overlay (winner, candidates, breakdown)
• Utility Score Inspector editor window
• Live score values with history sparklines
• Lightweight opt-in recording with low overhead
• Deterministic scoring by default

Designed for tuning, iteration, and showcasing AI behavior without performance penalties.

Optional BTGraph Pro Integration

When BTGraph Pro is installed, the Utility AI Pack integrates seamlessly via reflection-based enhancements:

• Utility score panel inside the BTGraph Pro workflow
• Jump to winning child node for faster iteration
• Enhanced debugging experience

BTGraph Pro is fully optional and not required.

Production-Friendly Design

• Minimal allocations
• Clean, modular runtime architecture
• Deterministic scoring behavior
• No debugger feature duplication
• BTGraph-style authoring workflow

Built for real projects — not just demos.

Included Sample Content

• Complete example Utility AI scenario (Attack / Flee / Heal / Celebrate)
• Sample scene
• Sample BTGraph tree asset
• Helper generators for quick setup

Perfect for learning, tuning, and demonstrating Utility AI systems in action.