ScriptableFactorySelector

Generic Odin selector popup that displays all registered factories matching a specific IScriptableFactory<TObject, TData> interface. Used by FactorableSpawnerDrawer to let users pick a factory from a dropdown.

Definition

Namespace: Paragon.Core.ScriptableFactory.Editor Assembly: Paragon.Editor.dll

public class ScriptableFactorySelector<TObject, TData> : OdinSelector<ScriptableFactory>
    where TObject : class, IFactorable<TData>
    where TData : FactorableData

Inherits: OdinSelector<ScriptableFactory> (Sirenix.OdinInspector.Editor) Type Constraints:

• TObject : class, IFactorable<TData>

• TData : FactorableData

Remarks

The selector queries ScriptableFactoryRegistry.GetAllFactoriesOfType() at construction time using the resolved IScriptableFactory<TObject, TData> type. Only factories registered in the ScriptableFactoryRegistry are shown.

The popup always includes a "None" option at the top (which invokes the callback with null) followed by all matching factories keyed by their asset name. Single-click selection is enabled — clicking an entry immediately confirms the selection and closes the popup.

Quick Lookup

Goal	How
Create a selector	new ScriptableFactorySelector<TObj, TData>(callback)
Show the popup	selector.Show(buttonRect)
Handle selection	Provide an Action<IScriptableFactory<TObj, TData>> callback
Clear selection	User clicks "None" in the popup

Properties

Title

The popup window title.

public override string Title => "Factories"

Constructor

ScriptableFactorySelector(Action<IScriptableFactory<TObject, TData>>)

Creates a selector with a callback invoked when a factory is selected.

public ScriptableFactorySelector(Action<IScriptableFactory<TObject, TData>> factorySelected)

Parameter	Type	Description
factorySelected	Action<IScriptableFactory<TObject, TData>>	Callback invoked with the selected factory (or null for "None")

Methods

BuildSelectionTree

Builds the Odin menu tree with a "None" entry followed by all matching factories from the registry. Enables single-click selection.

protected override void BuildSelectionTree(OdinMenuTree tree)

Behavior:

• Subscribes to SelectionConfirmed event

• Disables the search toolbar

• Sets menu item height to 20px

• Adds "None" → null entry

• Adds each factory keyed by ScriptableFactory.name

Show

Displays the selector as a popup window anchored to the given button rect.

public void Show(Rect buttonRect)

Parameter	Type	Description
buttonRect	Rect	The screen-space rect of the button that triggered the popup

Behavior: Opens a popup window 115px wide. Registers a cleanup handler for when the window closes.

Common Pitfalls

Registry must be initialized The selector queries ScriptableFactoryRegistry.GetAllFactoriesOfType() at construction time. If the registry has not been initialized (e.g., immediately after a domain reload), the selector may show an empty list. The registry initializes via [InitializeOnLoadMethod], so this is normally handled automatically.

Callback receives ScriptableFactory cast The SelectionConfirmed event receives IEnumerable<ScriptableFactory>, which is then cast to IScriptableFactory<TObject, TData> via as. If a factory asset does not implement the expected generic interface (due to type mismatch), the callback will receive null.

Examples

Using the Selector in a Custom Drawer

private ScriptableFactorySelector<Enemy, EnemyData> selector;

protected override void Initialize()
{
    selector = new ScriptableFactorySelector<Enemy, EnemyData>(OnFactorySelected);
}

private void DrawFactoryButton()
{
    Rect rect = GUILayoutUtility.GetRect(0, 0, GUILayoutOptions.Width(80).ExpandHeight());
    if (GUI.Button(rect, "Select", SirenixGUIStyles.ToolbarButton))
    {
        selector.Show(rect);
    }
}

private void OnFactorySelected(IScriptableFactory<Enemy, EnemyData> factory)
{
    // Handle selection
}

See Also

• ScriptableFactoryRegistry — source of selectable factories

• FactorableSpawnerDrawer — primary consumer of this selector

• Editor Overview — editor tooling overview