public AreaBuilding CreateAreaBuilding(GridCell minGridCell, GridCell maxGridCell, Vector2 size, int type)
{
// setup for selection object
Vector3 oldPosition = selection_object.transform.position;
SetupPositionAndSize(minGridCell.gridPosition, size);
selection_object.transform.position = UpdateSelectionObject(minGridCell, maxGridCell, size);
// instantiate new gameObject and then position and parent it
GameObject new_go = (GameObject)Instantiate(selection_object);
new_go.transform.position = selection_object.transform.position;
new_go.transform.position = new Vector3(selection_object.transform.position.x,
selection_object.transform.position.y - 0.05f,
selection_object.transform.position.z);
new_go.transform.parent = areaBuildingContainer;
new_go.GetComponent <Renderer>().material = areaBuildingMaterial;
//don't forget to set layer
new_go.layer = InterfaceController.LAYER_AREA_BUILDING;
// add components, and add collider
AreaBuilding new_area = new_go.AddComponent <AreaBuilding> ();
new_go.AddComponent <BoxCollider> ();
new_go.GetComponent <BoxCollider> ().size = new Vector3(0.99f, 0.99f, 0.99f); // otherwise it's counts as outside and size ends up at +1 because of Setup
new_area.Setup(type, buildingFactory);
// reflect changes in grid
GridHelper.BuildGridObject(new_area);
// and finally add to airport list
airport.AddAreaBuilding(new_area);
// reset position
selection_object.transform.position = oldPosition;
return(new_area);
}