add
fun addClickHandler(item: ItemStack, click: EffectiveAbstractInteract.Click, callback: InteractCallback, ifRightClickOpenContainer: Boolean = false, cooldownData: EffectiveAbstractInteract.CooldownData<EffectiveClickable.EventsCallOptions>? = null)
Registers a click handler for stacks matching item: by namespaced key if item is a custom item, otherwise by item's org.bukkit.Material (so pass a plain vanilla stack to match all stacks of that material).
Parameters
click
which button triggers callback
if
only relevant for Click.RIGHT on a container block (chest, barrel, …): when false (default) the handler runs and the container stays closed; when true the handler is skipped and the container opens as usual
cooldown
optional per-player cooldown gating the callback; while on cooldown the callback is not invoked