Fix check for opponent side for mana drain

server/battles/BattleFlowProcessor.cpp

@@ -677,8 +677,7 @@ void BattleFlowProcessor::stackTurnTrigger(const CBattleInfoCallback & battle, c
 		}
 		if(st->hasBonusOfType(BonusType::MANA_DRAIN) && !st->drainedMana)
 		{
-			const PlayerColor opponent = battle.otherPlayer(battle.battleGetOwner(st));
-			const CGHeroInstance * opponentHero = battle.battleGetFightingHero(opponent);
+			const CGHeroInstance * opponentHero = battle.battleGetFightingHero(battle.otherSide(st->unitSide()));
 			if(opponentHero)
 			{
 				ui32 manaDrained = st->valOfBonuses(BonusType::MANA_DRAIN);

server/battles/BattleResultProcessor.cpp

@@ -498,10 +498,10 @@ void BattleResultProcessor::endBattleConfirm(const CBattleInfoCallback & battle)
 
 	BattleResultAccepted raccepted;
 	raccepted.battleID = battle.getBattle()->getBattleID();
-	raccepted.heroResult[0].army = const_cast<CArmedInstance*>(battle.battleGetArmyObject(0));
-	raccepted.heroResult[1].army = const_cast<CArmedInstance*>(battle.battleGetArmyObject(1));
-	raccepted.heroResult[0].hero = const_cast<CGHeroInstance*>(battle.battleGetFightingHero(0));
-	raccepted.heroResult[1].hero = const_cast<CGHeroInstance*>(battle.battleGetFightingHero(1));
+	raccepted.heroResult[0].army = const_cast<CArmedInstance*>(battle.battleGetArmyObject(BattleSide::ATTACKER));
+	raccepted.heroResult[1].army = const_cast<CArmedInstance*>(battle.battleGetArmyObject(BattleSide::DEFENDER));
+	raccepted.heroResult[0].hero = const_cast<CGHeroInstance*>(battle.battleGetFightingHero(BattleSide::ATTACKER));
+	raccepted.heroResult[1].hero = const_cast<CGHeroInstance*>(battle.battleGetFightingHero(BattleSide::DEFENDER));
 	raccepted.heroResult[0].exp = battleResult->exp[0];
 	raccepted.heroResult[1].exp = battleResult->exp[1];
 	raccepted.winnerSide = finishingBattle->winnerSide;