in-world ui textboxes

overworld/entity/EntityProximityArea.gd

@@ -0,0 +1,20 @@
+class_name EntityProximityArea extends Area3D
+
+@export var entity:Entity
+
+var _triggered:bool = false
+
+func _ready() -> void:
+  body_entered.connect(_onBodyEntered)
+
+func _onBodyEntered(body:Node3D) -> void:
+  if _triggered:
+    return
+  if !(body is Entity):
+    return
+  if (body as Entity).entityId != "player":
+    return
+  _triggered = true
+  assert(entity != null && entity.chatboxMessage != "")
+  var chatbox:WorldChatBox = UI.spawnWorldChatBox(entity)
+  chatbox.showTimed(entity.chatboxMessage, entity.chatboxDuration)