unity-state-machines

Provide architectural patterns and code scaffolds for Unity state machines.

24|5|Updated Mar 10, 2026
One-click install
npx skills add https://github.com/Nice-Wolf-Studio/unity-claude-skills --skill unity-state-machines-nice-wolf-studio
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: unity-state-machines
Source: https://github.com/Nice-Wolf-Studio/unity-claude-skills/tree/main/skills/unity-state-machines
Command: npx skills add https://github.com/Nice-Wolf-Studio/unity-claude-skills --skill unity-state-machines-nice-wolf-studio

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill addresses the common issue of unmaintainable state logic in Unity projects by providing structured patterns for Finite State Machines (FSMs), Hierarchical FSMs (HFSMs), Behavior Trees (BTs), and Stack-Based State Machines. It helps developers avoid ad-hoc if/else chains and large switch statements.

Core Features & Use Cases

  • State System Selection: Guides the choice between Animator FSMs, Code FSMs, HFSMs, and Behavior Trees based on project needs.
  • Architecture Patterns: Provides scaffolds for class-based FSMs, nested state machines, and minimal BT implementations.
  • Use Case: When developing AI for an enemy character, this Skill helps you decide whether to use a Behavior Tree for complex decision-making or a simple FSM for distinct states like Idle, Patrol, and Attack, and provides code examples for each.

Quick Start

Use the unity-state-machines skill to understand the difference between a code FSM and a behavior tree for AI.

Frequently Asked Questions about unity-state-machines

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I choose between a Finite State Machine and a Behavior Tree for Unity AI?

A Finite State Machine manages distinct states like Idle and Attack, while a Behavior Tree handles complex decision-making. This Skill guides selecting the appropriate pattern based on complexity, testability, and designer-friendliness.

What is the best way to structure Unity state machines without large switch statements?

The best way to structure Unity state machines is using architectural patterns like class-based FSMs or Hierarchical FSMs. This Skill provides code scaffolds to avoid unmaintainable ad-hoc if/else chains and large switch statements.

How do I implement a Hierarchical FSM for complex game flow control in Unity?

Implement a Hierarchical FSM by nesting state machines to manage complex game flow control. This Skill provides architecture patterns and code scaffolds for nested state machines to maintain scalable logic.

When should I use a Stack-Based State Machine for UI navigation in Unity?

Use a Stack-Based State Machine for UI navigation when you need to track state history and revert to previous states. This Skill provides architectural patterns for managing UI navigation and game flow control.

Does this Unity state machine approach support code FSMs and Animator FSMs?

Yes, this Skill supports both code FSMs and Animator FSMs. It provides architectural patterns and scaffolds to help you select and implement the appropriate state management approach for your project.