public override string Print(bool link = true, DwarfObject pov = null)
        {
            string eventString = GetYearTime();

            eventString += Changer?.ToLink(link, pov, this) ?? "An unknown creature";
            eventString += " changed ";
            eventString += Changee?.ToLink(link, pov, this) ?? "an unknown creature";
            eventString += " from ";
            eventString += Formatting.AddArticle(OldRace).ToLower();
            eventString += " into ";
            eventString += Formatting.AddArticle(NewRace).ToLower();
            eventString += PrintParentCollection(link, pov);
            eventString += ".";
            return(eventString);
        }
        public ChangedCreatureType(List <Property> properties, World world)
            : base(properties, world)
        {
            foreach (Property property in properties)
            {
                switch (property.Name)
                {
                case "old_race": OldRace = Formatting.FormatRace(property.Value); break;

                case "old_caste": OldCaste = property.Value; break;

                case "new_race": NewRace = Formatting.FormatRace(property.Value); break;

                case "new_caste": NewCaste = property.Value; break;

                case "changee_hfid": Changee = world.GetHistoricalFigure(Convert.ToInt32(property.Value)); break;

                case "changer_hfid": Changer = world.GetHistoricalFigure(Convert.ToInt32(property.Value)); break;

                case "changee": if (Changee == null)
                    {
                        Changee = world.GetHistoricalFigure(Convert.ToInt32(property.Value));
                    }
                    else
                    {
                        property.Known = true;
                    } break;

                case "changer": if (Changer == null)
                    {
                        Changer = world.GetHistoricalFigure(Convert.ToInt32(property.Value));
                    }
                    else
                    {
                        property.Known = true;
                    } break;
                }
            }

            Changee.PreviousRace = OldRace;
            Changee.CreatureTypes.Add(new HistoricalFigure.CreatureType(NewRace, this));
            Changee.AddEvent(this);
            Changer.AddEvent(this);
        }