make hovering_manager to manage hovers from one place

scripts/globals/hovering_manager.gd

@@ -0,0 +1,23 @@
+extends Node3D
+
+var hovered_node: Variant
+var mouse_pos: Vector2 = Vector2.ZERO
+
+@onready var camera: Camera3D = get_viewport().get_camera_3d()
+
+
+func _physics_process(_delta: float) -> void:
+	var space_state := get_world_3d().direct_space_state
+	var from := camera.project_ray_origin(mouse_pos)
+	var to := from + camera.project_ray_normal(mouse_pos) * (camera.far - 1)
+	var query := PhysicsRayQueryParameters3D.create(from, to)
+	var result := space_state.intersect_ray(query)
+	if not result:
+		hovered_node = null
+		return
+	hovered_node = result["collider"]
+
+
+func _input(event: InputEvent) -> void:
+	if event is InputEventMouseMotion:
+		mouse_pos = (event as InputEventMouseMotion).position