unity-memento-pattern

Installation
SKILL.md

Unity Memento Pattern

This skill provides a structured way to handle state snapshots in Unity. Inspired by Adam Myhre's implementation, it strictly separates state data (Memento), the state producer (Originator), and the state manager (Caretaker).

Core Features

  1. Immutable Snapshots: Ensures saved data cannot be corrupted by subsequent changes to the original object.
  2. Loadout Management: Built-in support for multiple save slots (Caretaker logic).
  3. Encapsulation: State structure is hidden from the resting system, exposing only what is necessary.

Core Files (Max 3)

  • IMemento.cs.txt: Base interfaces and generic Memento wrapper.
  • LoadoutManager.cs.txt: Caretaker implementation for managing list-based snapshots.
  • HotbarMementoExample.cs.txt: Practical application for UI/Item state persistence.

Usage

Refer to HotbarMementoExample.cs.txt to see how to save a list of ScriptableObjects using a copy-constructor.

Related skills
Installs
7
GitHub Stars
7
First Seen
Apr 19, 2026