Undo & Redo

Runtime Studio provides a simple undo system for runtime editor actions.

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Basic Undo

RuntimeStudioUndo.RecordAction(
    "Add Health",
    () =>
    {
        gameObject.AddComponent<MyHealth>();
    }
);

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Batch Operations

using (RuntimeStudioUndo.Begin("Move Objects"))
{
    foreach (var obj in objects)
    {
        obj.transform.position += offset;
    }
}

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Alias

RuntimeStudioUndo.Run("Action", () => { });

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Undo Rules

• Always wrap scene mutations

• Always wrap hierarchy changes

• Always wrap component additions/removals

• Do not wrap pure UI updates

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Undo State

RuntimeStudioUndo.CanUndoRuntimeStudioUndo.CanRedoRuntimeStudioUndo.Changed

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Important Notes

• Nested scopes are merged

• Built-in inspector fields already record undo

• Custom tools must manually record undo