public override void DrawGhost(ThingDef def, IntVec3 center, Rot4 rot, Color ghostCol)
        {
            Map currentMap = Find.CurrentMap;

            GenDraw.DrawFieldEdges(Building_OrbitalTradeBeacon.TradeableCellsAround(center, currentMap));
        }
        public override void DrawGhost(ThingDef def, IntVec3 center, Rot4 rot)
        {
            Map visibleMap = Find.VisibleMap;

            GenDraw.DrawFieldEdges(Building_OrbitalTradeBeacon.TradeableCellsAround(center, visibleMap));
        }