Doing some more quest stuff

scripts/Quest/Quest.gd

@@ -26,3 +26,6 @@ func isCompleted() -> bool:
 
 func isStarted() -> bool:
 	return questStarted
+
+func objectiveUpdated(objective:QuestObjective) -> void:
+	QUEST.questUpdated.emit(self)

scripts/Quest/QuestObjective.gd

@@ -7,7 +7,34 @@ enum Type {
 @export var objectiveName:String = "Some objective"
 @export var objectiveType:Type = Type.Item
 
-var quest:Quest
+@export var itemType:Item.Type = Item.Type.POTION
+@export var quantity:int = 1
 
-func onQuestReady(quest:Quest) -> void:
-	self.quest = quest
+var completed:bool = false
+var quest:Quest = null
+
+func onQuestReady(_quest:Quest) -> void:
+	self.quest = _quest
+	if objectiveType == Type.Item:
+		QUEST.playerInventoryUpdated.connect(_onPlayerInventoryUpdated)
+		_onPlayerInventoryUpdated()
+
+func _exit_tree() -> void:
+	QUEST.playerInventoryUpdated.disconnect(_onPlayerInventoryUpdated)
+
+func _onPlayerInventoryUpdated() -> void:
+	if !quest.isStarted():
+		return
+
+	# Ensure player has the item
+	var hasItem = ITEM.PLAYER_INVENTORY.hasItem(itemType, quantity)
+
+	if hasItem && !completed:
+		self.completed = true
+		quest.objectiveUpdated(self)
+	else:
+		self.completed = false
+		quest.objectiveUpdated(self)
+
+func isCompleted() -> bool:
+	return completed