SlotKit

2.3.0

Added

• SlotOperations.PutVeto, registered with vetoPut: a veto handed the stack about to land, so a rule can refuse a put by item ("only into a container that already holds it"). Every put seam asks it: click place, shift-click in, drag-fill, number-key and offhand swaps (both slots), world pickup, and clicks a mod sends under as(...).
• SlotOperations.allowsPut(ref, operation, incoming): allows, then every put veto with the incoming stack.
• SlotGroups.holds(ref, incoming): whether any slot in that slot's group already holds the same item, on the open menu or, with none, in the player's inventory.
• ItemContents: a container showing one item's contents (a shulker box opened from the inventory) says where that item is, and ItemSources.pathOf then names its slots as indexes inside the item.
• ItemPath.child(index) and ItemPath.within(outer): the path one level in, and whether a path is an item or anything inside it.

Fixed

• MenuSwitch.back brings a trading screen back with its trades, the trader's xp and level, instead of an empty trade list.
• A mount's inventory (a horse, donkey, mule, llama, camel or nautilus) can be set aside and brought back by MenuSwitch, instead of closing on the first switch.
• A click sent just before the server switched menus with MenuSwitch landed nowhere; on one of the player's inventory slots it now lands on the same slot in the new menu.
• The world pickup slot operation's name read "Inventory insert"; it's "Item pickup" now.
• A menu set aside by MenuSwitch now closes when the player dies, respawns, leaves the End or disconnects, so a crafting grid behind it hands its items back.
• Breaking a block emptied its blockScoped storage only onto the ground; a menu still open on it could hand every item out a second time.
• Restoring from a grave overwrote whatever the player had put in the slot since; the grave's stack now goes elsewhere and the slot's item stays.
• A grave took every stack from a player attachment; it now leaves KEEP stacks with the player and destroys DESTROY ones, as a death without a grave does.
• An EphemeralStorage group in a custom menu lost its items when the menu closed; they go back to the player, as a crafting grid's do.
• A created slot group declared as SHULKER_STORAGE took a shulker box by click, number key, shift-click or drag; like vanilla's shulker box slots, it now refuses anything that can't go inside a container item.
• A gate on a player inventory slot didn't hold against a number-key or offhand swap, the drop key, or an item picked up into the inventory.
• The F key's offhand swap with no screen open didn't hand a put veto the real incoming stack, so a plain swap could put through an item a veto would have refused.
• A LiveItem stayed live after a hopper (or any removeItem) took its whole stack, so a menu open on that box kept taking items that went nowhere.

2.2.1

Fixed

• A slot hidden only by the client's reveal check now keeps a write the server syncs to it, instead of dropping it. This fixed pocket items that stayed invisible on the client after a pickup, Restock, or a cycle.

2.2.0

Added

• ItemSources.pathOf(player, slot) names the item in an inventory slot, an ender chest slot, or a carried attachment's slot, with the same answer on the client and the server, except an ender chest's own menu on the client. Concepts.
• playerAttached(...).carried() marks a player attachment as carried, ItemScope.carried(true) walks it, and ItemSources.containerOf(player, path) returns its contents.
• ItemState is a value that rides on an item, saved with it or not as the mod chooses. Concepts.
• SlotLooks ties an item state or a client-side check to an animation, another stack drawn in the item's place, or a mark drawn under or over the item. Recipe.
• SlotDoubleClick gives a plain left double-click on a slot to a mod's action, with the lifted stack drawn back in its slot until the second click. Recipe.

Changed

• Every binding of a player, block, or entity attachment (playerAttached, playerAttachedVisible, blockScoped, entityAttached) shares one live list of stacks per owner, so a stack keeps its identity across the menu's slots, shift-clicks, and ItemSources.
• Requires MenuKit 7.5.0 or newer, for the slot decorations SlotLooks draws through.