Fix some bugs with chat

overworld/entity/EntityProximityArea.gd

@@ -3,9 +3,11 @@ class_name EntityProximityArea extends Area3D
 @export var entity:Entity
 
 var _triggered:bool = false
+var _chatbox:WorldChatBox = null
 
 func _ready() -> void:
   body_entered.connect(_onBodyEntered)
+  body_exited.connect(_onBodyExited)
 
 func _onBodyEntered(body:Node3D) -> void:
   if _triggered:
@@ -16,5 +18,15 @@ func _onBodyEntered(body:Node3D) -> void:
     return
   _triggered = true
   assert(entity != null && entity.chatboxMessage != "")
-  var chatbox:WorldChatBox = UI.spawnWorldChatBox(entity)
-  chatbox.showTimed(entity.chatboxMessage, entity.chatboxDuration)
+  if is_instance_valid(_chatbox) and _chatbox.visible:
+    _chatbox.resetTimer(entity.chatboxDuration)
+  else:
+    _chatbox = UI.spawnWorldChatBox(entity)
+    _chatbox.showTimed(entity.chatboxMessage, entity.chatboxDuration)
+
+func _onBodyExited(body:Node3D) -> void:
+  if !(body is Entity):
+    return
+  if (body as Entity).entityId != "player":
+    return
+  _triggered = false