Use

Description: Runs the "use" action for the currently held custom item. If the custom item contains a command string that requires arguments, the command will substitute # placeholders with provided arguments before invoking the item's ItemEvents.Command handler.

Command: .use

Behavior / logic summary:

• Must be executed in-game (a Player must be available).

• Validates the player is holding a CustomItem of type CustomItemType.Item.

• Iterates IItemData.Data entries to find any Command strings that contain # placeholders.

• Counts the number of # placeholders and ensures the player supplied at least that many arguments; if not, returns an error showing required vs provided argument counts.

• Replaces each # with the corresponding argument (# are processed left-to-right).

• After substitution, the command reassigns the modified data and triggers the item