scene manager system

autoloads/scene_manager.gd

@@ -0,0 +1,30 @@
+extends Node
+
+
+@export var scene_parent: Node
+
+
+var current_scene: Node
+
+
+func _ready() -> void:
+	var tree = get_tree()
+	# capture main scene
+	if tree.current_scene != self:
+		change_scene(tree.current_scene)
+		tree.current_scene = self
+
+
+func change_scene(new_scene: Node) -> void:
+	# avoid infinite recursion :P
+	if current_scene == new_scene:
+		return
+	# remove current scene
+	if current_scene:
+		scene_parent.remove_child(current_scene)
+		current_scene.queue_free()
+	# add new scene
+	if new_scene.is_inside_tree():
+		new_scene.get_parent().remove_child.call_deferred(new_scene)
+	scene_parent.add_child.call_deferred(new_scene)
+	current_scene = new_scene