Adding scene teleporter

game/scenes/Interaction/scene_teleporter.gd

@@ -0,0 +1,39 @@
+extends Area3D
+
+@export_file("*.tscn") var target_scene_path := "res://scenes/Levels/transportation_level.tscn"
+@export var target_group: StringName = &"player"
+@export var one_shot := true
+
+var _is_transitioning := false
+
+
+func _ready() -> void:
+	body_entered.connect(_on_body_entered)
+
+
+func _on_body_entered(body: Node) -> void:
+	if _is_transitioning:
+		return
+	if target_group != StringName() and not body.is_in_group(target_group):
+		return
+	if target_scene_path.strip_edges() == "":
+		push_warning("Teleporter target scene is empty.")
+		return
+	if not ResourceLoader.exists(target_scene_path):
+		push_warning("Teleporter target scene does not exist: %s" % target_scene_path)
+		return
+
+	_is_transitioning = true
+	if one_shot:
+		set_deferred("monitoring", false)
+	call_deferred("_deferred_change_scene")
+
+
+func _deferred_change_scene() -> void:
+	var err := get_tree().change_scene_to_file(target_scene_path)
+	if err == OK:
+		return
+	push_warning("Failed to change scene to '%s' (%s)." % [target_scene_path, err])
+	_is_transitioning = false
+	if one_shot:
+		set_deferred("monitoring", true)