Basic inventory, item and storage

scripts/inventory/storage.gd

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+@tool
+extends Inventory
+
+class_name Storage
+
+@export var capacity : int:
+	set(value):
+		if value < 0:
+			return
+		if value == capacity:
+			return
+		capacity = value
+		internal_array.resize(capacity)
+		for i in range(capacity):
+			internal_array[i] = InventorySlot.new()
+	get:
+		return capacity
+
+@export_storage var internal_array : Array[InventorySlot] = []
+
+func find(item : Item) -> int:
+	for i in range(len(internal_array)):
+		if internal_array[i].held_item == item:
+			return i
+	return -1
+
+func add(stack: Stack) -> Stack:
+	var found_index : int = find(stack.held_item)
+	if found_index != -1:
+		stack = internal_array[found_index].merge_stack(stack)
+		if stack == null:
+			return null
+	for i in range(len(internal_array)):
+		if internal_array[i].held_item == null or internal_array[i].held_item == stack.held_item:
+			stack = internal_array[i].merge_stack(stack)
+		if stack == null:
+			return null
+	return stack
+
+func pop() -> Stack:
+	for i in range(len(internal_array)):
+		if internal_array[i].held_item != null:
+			return internal_array[i].extract()
+	return null
+
+func take(item: Item,amount: int) -> Stack:
+	var found = find(item)
+	if found == -1:
+		return null
+	return internal_array[found].extract_stack(amount)