if (mobcount <= 1000 && mobrange <= 1000)
                                                    {
                                                        Position wc = new Position((short)sign.X, (short)sign.Y, (short)sign.Z);
                                                        EntityMob ent = new EntityMob(0, 0, 0, 20);
                                                        ent.ID = mobid;
                                                        Random r = new Random();
                                                        for (int j = 0; j < mobcount; j++)
                                                        {
                                                            double rsin = Math.Sin(r.Next(0, 32) / 5) * mobrange;
                                                            double rcos = Math.Cos(r.Next(0, 32) / 5) * mobrange;
                                                            ent.X = (double)(rsin + wc.X);
                                                            ent.Z = (double)(rcos + wc.Z);
                                                            ent.Y = (double)wc.Y;
                                                            map.PlaceEntity(ent);
                                                        }
                                                    }
                                                    else
                                                    {
                                                        valid = false;
                                                    }