cloned Nullkiller into Nullkiller2

AI/Nullkiller2/Goals/RecruitHero.cpp

@@ -0,0 +1,80 @@
+/*
+* RecruitHero.cpp, part of VCMI engine
+*
+* Authors: listed in file AUTHORS in main folder
+*
+* License: GNU General Public License v2.0 or later
+* Full text of license available in license.txt file, in main folder
+*
+*/
+#include "StdInc.h"
+#include "Goals.h"
+#include "../AIGateway.h"
+#include "../AIUtility.h"
+#include "../../../lib/constants/StringConstants.h"
+
+
+namespace NKAI
+{
+
+using namespace Goals;
+
+std::string RecruitHero::toString() const
+{
+	if(heroToBuy)
+		return "Recruit " + heroToBuy->getNameTranslated() + " at " + town->getNameTranslated();
+	else
+		return "Recruit hero at " + town->getNameTranslated();
+}
+
+void RecruitHero::accept(AIGateway * ai)
+{
+	auto t = town;
+
+	if(!t)
+	{
+		throw cannotFulfillGoalException("No town to recruit hero!");
+	}
+
+	logAi->debug("Trying to recruit a hero in %s at %s", t->getNameTranslated(), t->visitablePos().toString());
+
+	auto heroes = cb->getAvailableHeroes(t);
+
+	if(!heroes.size())
+	{
+		throw cannotFulfillGoalException("No available heroes in tavern in " + t->nodeName());
+	}
+
+	auto heroToHire = heroToBuy;
+
+	if(!heroToHire)
+	{
+		for(auto hero : heroes)
+		{
+			if(!heroToHire || hero->getTotalStrength() > heroToHire->getTotalStrength())
+				heroToHire = hero;
+		}
+	}
+
+	if(!heroToHire)
+		throw cannotFulfillGoalException("No hero to hire!");
+
+	if(t->getVisitingHero())
+	{
+		cb->swapGarrisonHero(t);
+	}
+
+	if(t->getVisitingHero())
+		throw cannotFulfillGoalException("Town " + t->nodeName() + " is occupied. Cannot recruit hero!");
+
+	cb->recruitHero(t, heroToHire);
+
+	{
+		std::unique_lock lockGuard(ai->nullkiller2->aiStateMutex);
+
+		ai->nullkiller2->heroManager->update();
+		ai->nullkiller2->objectClusterizer->reset();
+	}
+}
+
+}