Uses for every material (clay jar, bedroll, pelt rug, fang necklace, bear cloak, pemmican, bait), Q to drop, K/M bag rows on 1-8, help pages; protocol 14

scripts/player/player.gd

@@ -49,10 +49,26 @@ func held_item_id() -> String:
 	var s = inventory.get_slot(selected)
 	return s.id if s != null else ""
 
+## Holds the item in bag slot `i` (any slot: 1-8 pick from the current row,
+## K and M move between rows of 8).
 func select(i: int) -> void:
-	selected = wrapi(i, 0, HOTBAR)
+	selected = wrapi(i, 0, inventory.size())
 	selected_changed.emit()
 
+## The bag row (0 = the top) the 1-8 keys and the hotbar show.
+func row() -> int:
+	return selected / HOTBAR
+
+func rows() -> int:
+	return inventory.size() / HOTBAR
+
+## Column `col` of the current row; and the same column a row up or down.
+func select_in_row(col: int) -> void:
+	select(row() * HOTBAR + wrapi(col, 0, HOTBAR))
+
+func change_row(by: int) -> void:
+	select(wrapi(row() + by, 0, rows()) * HOTBAR + selected % HOTBAR)
+
 ## Called by workbenches and chests (container = null for plain crafting).
 func open_inventory(container: Node) -> void:
 	inventory_requested.emit(container)