Fix double off-by-one bug with CREATURE_GROWTH bonus

config/artifacts.json

@@ -1730,7 +1730,7 @@
 		"bonuses" : [
 			{
 				"type" : "CREATURE_GROWTH",
-				"subtype" : "creatureLevel1",
+				"subtype" : "creatureLevel2",
 				"val" : 5,
 				"propagator": "VISITED_TOWN_AND_VISITOR"
 			}
@@ -1743,7 +1743,7 @@
 		"bonuses" : [
 			{
 				"type" : "CREATURE_GROWTH",
-				"subtype" : "creatureLevel2",
+				"subtype" : "creatureLevel3",
 				"val" : 4,
 				"propagator": "VISITED_TOWN_AND_VISITOR"
 			}
@@ -1756,7 +1756,7 @@
 		"bonuses" : [
 			{
 				"type" : "CREATURE_GROWTH",
-				"subtype" : "creatureLevel3",
+				"subtype" : "creatureLevel4",
 				"val" : 3,
 				"propagator": "VISITED_TOWN_AND_VISITOR"
 			}
@@ -1769,7 +1769,7 @@
 		"bonuses" : [
 			{
 				"type" : "CREATURE_GROWTH",
-				"subtype" : "creatureLevel4",
+				"subtype" : "creatureLevel5",
 				"val" : 2,
 				"propagator": "VISITED_TOWN_AND_VISITOR"
 			}
@@ -1782,7 +1782,7 @@
 		"bonuses" : [
 			{
 				"type" : "CREATURE_GROWTH",
-				"subtype" : "creatureLevel5",
+				"subtype" : "creatureLevel6",
 				"val" : 1,
 				"propagator": "VISITED_TOWN_AND_VISITOR"
 			}

docs/modders/Bonus/Bonus_Types.md

@@ -244,7 +244,7 @@ Increased effect of spell affecting creature, ie. Aenain makes Disrupting Ray de
     "subtype" : "spell.disruptingRay",
     "type" : "SPECIAL_ADD_VALUE_ENCHANT"
 }
-``````
+```
 
 - subtype: affected spell identifier
 - additionalInfo: value to add

lib/mapObjects/CGDwelling.cpp

@@ -320,7 +320,7 @@ void CGDwelling::newTurn(CRandomGenerator & rand) const
 				creaturesAccumulate = VLC->settings()->getBoolean(EGameSettings::DWELLINGS_ACCUMULATE_WHEN_NEUTRAL);
 
 			const CCreature * cre =creatures[i].second[0].toCreature();
-			TQuantity amount = cre->getGrowth() * (1 + cre->valOfBonuses(BonusType::CREATURE_GROWTH_PERCENT)/100) + cre->valOfBonuses(BonusType::CREATURE_GROWTH);
+			TQuantity amount = cre->getGrowth() * (1 + cre->valOfBonuses(BonusType::CREATURE_GROWTH_PERCENT)/100) + cre->valOfBonuses(BonusType::CREATURE_GROWTH, BonusCustomSubtype::creatureLevel(cre->getLevel()));
 			if (creaturesAccumulate && ID != Obj::REFUGEE_CAMP) //camp should not try to accumulate different kinds of creatures
 				sac.creatures[i].first += amount;
 			else

lib/mapObjects/CGTownInstance.cpp

@@ -164,7 +164,8 @@ GrowthInfo CGTownInstance::getGrowthInfo(int level) const
 	}
 
 	//other *-of-legion-like bonuses (%d to growth cumulative with grail)
-	TConstBonusListPtr bonuses = getBonuses(Selector::typeSubtype(BonusType::CREATURE_GROWTH, BonusCustomSubtype::creatureLevel(level)));
+	// Note: bonus uses 1-based levels (Pikeman is level 1), town list uses 0-based (Pikeman in 0-th creatures entry)
+	TConstBonusListPtr bonuses = getBonuses(Selector::typeSubtype(BonusType::CREATURE_GROWTH, BonusCustomSubtype::creatureLevel(level+1)));
 	for(const auto & b : *bonuses)
 		ret.entries.emplace_back(b->val, b->Description());