protected override bool TryExecuteWorker(IncidentParms parms)
        {
            if (!settings.Active)
            {
                return(false);
            }

            List <ConstellationsDef> toInvoke = new List <ConstellationsDef>();

            foreach (var con in DefDatabase <ConstellationsDef> .AllDefs)
            {
                if (con.ConstellationType == ConstellationType.Positive && positiveEnable == 0)
                {
                    continue;
                }

                if (con.ConstellationType == ConstellationType.Negative && negativeEnable == 0)
                {
                    continue;
                }

                List <ConstellationCondition> conditions = con.Conditions;

                bool canSpawn = true;
                foreach (var condition in conditions)
                {
                    canSpawn = condition.CanSpawn(null);
                    if (!canSpawn)
                    {
                        break;
                    }
                }

                if (canSpawn)
                {
                    toInvoke.Add(con);
                }
            }

            if (toInvoke.Count > 0)
            {
                ConstellationsDef           constellationsDef = toInvoke.RandomElement();
                GameCondition_Contellations condition         = (GameCondition_Contellations)GameConditionMaker.MakeCondition(GameConditionDefOfLocal.Constellations, 5 * 60000);
                condition.ConstellationsDef = constellationsDef;
                Find.World.gameConditionManager.RegisterCondition(condition);

                SendLetter(constellationsDef);

                return(true);
            }

            return(false);
        }
 private void SendLetter(ConstellationsDef def)
 {
     Find.LetterStack.ReceiveLetter(def.label, def.description, LetterDefOf.NeutralEvent);
 }