Auto-summon pupils to the principal after fight breaks, with a corridor FIFO queue.

src/HSchool.Simulation/PresenceSystem.cs

@@ -331,6 +331,11 @@ internal static class PresenceSystem
         var bound = Duty.IsOtherStaff(person)
             ? slot.Kind != DaySlotKind.Outside
             : slot.Kind == DaySlotKind.Lesson && lessons.Any(lesson => lesson.Period == slot.Index);
+        if (DirectorSummonSystem.IsSummoned(school, person.Id))
+        {
+            bound = true;
+        }
+
         if (activity.IsActive && TalkActions.IsTalk(activity.ActionId))
         {
             if (!bound || TalkActions.IsWhisper(activity.ActionId) || TalkActions.IsFight(activity.ActionId))
@@ -342,6 +347,11 @@ internal static class PresenceSystem
             activity = PersonActivity.Idle;
         }
 
+        if (activity.IsActive && ActivitySystem.IsPrincipalHearing(activity.ActionId))
+        {
+            return null;
+        }
+
         if (!presence.IsOnCampus)
         {
             intent = Intent.None;
@@ -354,6 +364,11 @@ internal static class PresenceSystem
                     school.Catalog!,
                     now,
                     school.SchoolWeekDays);
+                if (DirectorSummonSystem.TryDutyRoom(school, person.Id, out var summonArrive))
+                {
+                    dest = summonArrive;
+                }
+
                 presence = dest is null
                     ? Presence.OffCampus
                     : PresenceStepper.StartWalk(Presence.OffCampus, walks, dest, headingHome: false);
@@ -364,7 +379,7 @@ internal static class PresenceSystem
             return null;
         }
 
-        if (plan.WalkHomeAt is { } leave && now >= leave)
+        if (plan.WalkHomeAt is { } leave && now >= leave && !DirectorSummonSystem.IsSummoned(school, person.Id))
         {
             activity = PersonActivity.Idle;
             intent = Intent.None;
@@ -379,6 +394,12 @@ internal static class PresenceSystem
             school.Catalog!,
             now,
             school.SchoolWeekDays);
+        if (DirectorSummonSystem.TryDutyRoom(school, person.Id, out var summonRoom))
+        {
+            duty = summonRoom;
+            bound = true;
+        }
+
         if (duty is null)
         {
             activity = PersonActivity.Idle;
@@ -416,18 +437,20 @@ internal static class PresenceSystem
 
         var changing = activity.IsActive && ActivitySystem.IsChangeClothes(activity.ActionId);
         var inTalk = activity.IsActive && TalkActions.IsTalk(activity.ActionId);
+        var inHearing = activity.IsActive && ActivitySystem.IsPrincipalHearing(activity.ActionId);
 
         if (decision.WalkTo is not null
             && !decision.WalkTo.Equals(presence.NodeId, StringComparison.Ordinal)
             && activity.IsActive
             && !changing
-            && !inTalk)
+            && !inTalk
+            && !inHearing)
         {
             activity = PersonActivity.Idle;
         }
 
         intent = decision.Intent;
-        if (decision.WalkTo is not null && !changing && !inTalk)
+        if (decision.WalkTo is not null && !changing && !inTalk && !inHearing)
         {
             presence = PresenceStepper.StartWalk(presence, walks, decision.WalkTo, headingHome: false);
         }