Fix AI boat logic

AI/Nullkiller/Pathfinding/AINodeStorage.cpp

@@ -864,7 +864,7 @@ void AINodeStorage::setHeroes(std::map<const CGHeroInstance *, HeroRole> heroes)
 
 		if(actor->hero->tempOwner != ai->playerID)
 		{
-			bool onLand = !actor->hero->boat;
+			bool onLand = !actor->hero->boat || actor->hero->boat->layer != EPathfindingLayer::SAIL;
 			actor->initialMovement = actor->hero->maxMovePoints(onLand);
 		}
 

AI/Nullkiller/Pathfinding/Actors.cpp

@@ -42,7 +42,7 @@ ChainActor::ChainActor(const CGHeroInstance * hero, HeroRole heroRole, uint64_t
 	baseActor(this), carrierParent(nullptr), otherParent(nullptr), actorExchangeCount(1), armyCost(), actorAction()
 {
 	initialPosition = hero->visitablePos();
-	layer = hero->boat ? EPathfindingLayer::SAIL : EPathfindingLayer::LAND;
+	layer = hero->boat ? hero->boat->layer : EPathfindingLayer::LAND;
 	initialMovement = hero->movement;
 	initialTurn = 0;
 	armyValue = hero->getArmyStrength();

AI/VCAI/Pathfinding/AINodeStorage.cpp

@@ -109,7 +109,7 @@ std::vector<CGPathNode *> AINodeStorage::getInitialNodes()
 {
 	auto hpos = hero->visitablePos();
 	auto initialNode =
-		getOrCreateNode(hpos, hero->boat ? EPathfindingLayer::SAIL : EPathfindingLayer::LAND, NORMAL_CHAIN)
+		getOrCreateNode(hpos, hero->boat ? hero->boat->layer : EPathfindingLayer::LAND, NORMAL_CHAIN)
 		.get();
 
 	initialNode->turns = 0;