feat: add person history and trust reactions

simulation/knowledge/EventKnowledgeSystem.gd

@@ -103,12 +103,30 @@ func get_known_event_ids(knower_id: int, max_count: int = 3) -> Array[int]:
 	return recent_ids
 
 
+func get_retained_event_ids(
+	knower_id: int, lasting_event_ids: Array[int], max_count: int = 4
+) -> Array[int]:
+	return _get_ranked_event_ids(knower_id, lasting_event_ids, false, max_count)
+
+
 func get_communicable_event_ids(knower_id: int, lasting_event_ids: Array[int]) -> Array[int]:
+	return _get_ranked_event_ids(knower_id, lasting_event_ids, true, 0)
+
+
+func _get_ranked_event_ids(
+	knower_id: int, lasting_event_ids: Array[int], direct_only: bool, max_count: int
+) -> Array[int]:
 	var ranked: Array[Dictionary] = []
 	for record in known_events.values():
 		if record.get_knower_id() != knower_id:
 			continue
-		if record.get_acquisition_method() not in KnownEventStateRecord.DIRECT_ACQUISITION_METHODS:
+		if (
+			direct_only
+			and (
+				record.get_acquisition_method()
+				not in KnownEventStateRecord.DIRECT_ACQUISITION_METHODS
+			)
+		):
 			continue
 		(
 			ranked
@@ -120,10 +138,12 @@ func get_communicable_event_ids(knower_id: int, lasting_event_ids: Array[int]) -
 				}
 			)
 		)
-	ranked.sort_custom(_sort_communicable)
+	ranked.sort_custom(_sort_by_importance)
 	var event_ids: Array[int] = []
 	for item in ranked:
 		event_ids.append(int(item["event_id"]))
+		if max_count > 0 and event_ids.size() >= max_count:
+			break
 	return event_ids
 
 
@@ -234,7 +254,7 @@ static func _sort_by_acquisition(
 	return first.get_event_id() < second.get_event_id()
 
 
-static func _sort_communicable(first: Dictionary, second: Dictionary) -> bool:
+static func _sort_by_importance(first: Dictionary, second: Dictionary) -> bool:
 	if bool(first["lasting"]) != bool(second["lasting"]):
 		return bool(first["lasting"])
 	if int(first["acquired_tick"]) != int(second["acquired_tick"]):