feat: add example splash item for inventory testing

inventory/inventory_backpack/InventoryBackpack.gd

@@ -9,11 +9,11 @@ signal skip_action_requested
 
 enum State { IDLE, OPEN, SELECTED, ACQUIRE, REMOVE }
 
-	var _state: State = State.IDLE
-	var _animating: bool = false
-	var _active_tween: Tween = null
-	var _floating_item_color: Color = Color(1, 1, 1, 0)
-	var _home_position: Vector2 = Vector2(0, 0)
+var _state: State = State.IDLE
+var _animating: bool = false
+var _active_tween: Tween = null
+var _floating_item_color: Color = Color(1, 1, 1, 0)
+var _home_position: Vector2 = Vector2(0, 0)
 
 @onready var backpack_icon: ColorRect = $BackpackIcon
 @onready var floating_item: ColorRect = $FloatingItem

inventory/items/splash_item.tres

@@ -0,0 +1,5 @@
+{
+ "item_id": "splash",
+ "name": "Splash",
+ "combination_category": "potion"
+}