update

scenes/portal/portal.gd

@@ -0,0 +1,33 @@
+extends StaticBody3D
+
+@export var stats: BaseStats
+
+const GATE_SCENE: PackedScene = preload("res://scenes/portal/gate.tscn")
+
+func _ready() -> void:
+  add_to_group("portals")
+  Stats.register(self, stats)
+  EventBus.entity_died.connect(_on_entity_died)
+
+func _exit_tree() -> void:
+  Stats.deregister(self)
+
+func _on_entity_died(entity: Node) -> void:
+  if entity != self:
+    return
+  if not is_inside_tree():
+    return
+  var pos: Vector3 = global_position
+  var gate: Node3D = GATE_SCENE.instantiate()
+  get_parent().add_child(gate)
+  gate.global_position = pos
+  var enemies := get_tree().get_nodes_in_group("enemies")
+  for enemy in enemies:
+    if is_instance_valid(enemy):
+      enemy.queue_free()
+  EventBus.portal_defeated.emit(self)
+  queue_free()
+
+func _on_detection_area_body_entered(body: Node3D) -> void:
+  if body is CharacterBody3D and body.name == "Player":
+    EventBus.enemy_engaged.emit(self, body)