Free Godot 4 Addon: State Charts for Game Logic (Jan Thomä)

Overview

Jan Thomä (derkork) shares Godot State Charts, an extension for Godot Engine 4 or later that lets games use state charts, which extend the idea of finite state machines. It is built for Godot in an idiomatic way using nodes and signals, supports both GDScript and C#, and code only interacts with a single StateChart class.

Transitions can have guards and can be time-delayed to build things like cooldowns, and a built-in debug view inspects state charts while the game runs. The MIT-licensed addon includes annotated examples and is a free download from GitHub.