feat: deliver emergent Jajce commitments

simulation/situations/QuestJournalSystem.gd

@@ -17,12 +17,13 @@ func add_situation(
 		or definition == null
 		or not situation.is_active()
 		or situation.get_definition_id() != definition.situation_definition_id
-		or definition.get_alternative(alternative_id) == null
+		or (not alternative_id.is_empty() and definition.get_alternative(alternative_id) == null)
 		or current_tick < situation.get_created_tick()
 		or _entry_id_by_situation.has(situation.get_situation_id())
-		or not situation.select_alternative(alternative_id)
 	):
 		return null
+	if not alternative_id.is_empty() and not situation.select_alternative(alternative_id):
+		return null
 	var entry := QuestJournalEntryStateRecord.create(
 		_next_entry_id,
 		situation.get_situation_id(),
@@ -36,6 +37,23 @@ func add_situation(
 	return entry
 
 
+func select_alternative(
+	situation: SituationStateRecord, definition: SituationDefinition, alternative_id: StringName
+) -> bool:
+	if (
+		situation == null
+		or definition == null
+		or alternative_id.is_empty()
+		or situation.get_definition_id() != definition.situation_definition_id
+		or definition.get_alternative(alternative_id) == null
+	):
+		return false
+	var entry := get_for_situation(situation.get_situation_id())
+	if entry == null or not entry.is_active():
+		return false
+	return situation.select_alternative(alternative_id) and entry.select_alternative(alternative_id)
+
+
 func synchronize(
 	situation: SituationStateRecord, current_tick: int
 ) -> QuestJournalEntryStateRecord:
@@ -115,3 +133,7 @@ func get_active_sorted() -> Array[QuestJournalEntryStateRecord]:
 		if record.is_active():
 			records.append(record)
 	return records
+
+
+func get_next_entry_id() -> int:
+	return _next_entry_id