/* * GatherArmy.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 "../AIhelper.h" #include "../FuzzyHelper.h" #include "../ResourceManager.h" #include "../BuildingManager.h" #include "../../../lib/mapping/CMap.h" //for victory conditions #include "../../../lib/CPathfinder.h" #include "../../../lib/StringConstants.h" extern boost::thread_specific_ptr<CCallback> cb; extern boost::thread_specific_ptr<AIGateway> ai; extern FuzzyHelper * fh; using namespace Goals; bool GatherArmy::operator==(const GatherArmy & other) const { return other.hero.h == hero.h || town == other.town; } std::string GatherArmy::completeMessage() const { return "Hero " + hero.get()->name + " gathered army of value " + boost::lexical_cast<std::string>(value); } TSubgoal GatherArmy::whatToDoToAchieve() { //TODO: find hero if none set assert(hero.h); return fh->chooseSolution(getAllPossibleSubgoals()); //find dwelling. use current hero to prevent him from doing nothing. } TGoalVec GatherArmy::getAllPossibleSubgoals() { //get all possible towns, heroes and dwellings we may use TGoalVec ret; if(!hero.validAndSet()) { return ret; } //TODO: include evaluation of monsters gather in calculation for(auto t : cb->getTownsInfo()) { auto waysToVisit = ai->ah->howToVisitObj(hero, t); if(waysToVisit.size()) { //grab army from town if(!t->visitingHero && ai->ah->howManyReinforcementsCanGet(hero.get(), t)) { if(!vstd::contains(ai->townVisitsThisWeek[hero], t)) vstd::concatenate(ret, waysToVisit); } //buy army in town if (!t->visitingHero || t->visitingHero == hero.get(true)) { std::vector<int> values = { value, (int)ai->ah->howManyReinforcementsCanBuy(t->getUpperArmy(), t), (int)ai->ah->howManyReinforcementsCanBuy(hero.get(), t) }; int val = *std::min_element(values.begin(), values.end()); if (val) { auto goal = sptr(BuyArmy(t, val).sethero(hero)); if(!ai->ah->containsObjective(goal)) //avoid loops caused by reserving same objective twice ret.push_back(goal); else logAi->debug("Can not buy army, because of ai->ah->containsObjective"); } } //build dwelling //TODO: plan building over multiple turns? //auto bid = ah->canBuildAnyStructure(t, std::vector<BuildingID>(unitsSource, unitsSource + ARRAY_COUNT(unitsSource)), 8 - cb->getDate(Date::DAY_OF_WEEK)); //Do not use below code for now, rely on generic Build. Code below needs to know a lot of town/resource context to do more good than harm /*auto bid = ai->ah->canBuildAnyStructure(t, std::vector<BuildingID>(unitsSource, unitsSource + ARRAY_COUNT(unitsSource)), 1); if (bid.is_initialized()) { auto goal = sptr(BuildThis(bid.get(), t).setpriority(priority)); if (!ai->ah->containsObjective(goal)) //avoid loops caused by reserving same objective twice ret.push_back(goal); else logAi->debug("Can not build a structure, because of ai->ah->containsObjective"); }*/ } } auto otherHeroes = cb->getHeroesInfo(); auto heroDummy = hero; vstd::erase_if(otherHeroes, [heroDummy](const CGHeroInstance * h) { if(h == heroDummy.h) return true; else if(!ai->isAccessibleForHero(heroDummy->visitablePos(), h, true)) return true; else if(!ai->ah->canGetArmy(heroDummy.h, h)) //TODO: return actual aiValue return true; else if(ai->getGoal(h)->goalType == GATHER_ARMY) return true; else return false; }); for(auto h : otherHeroes) { // Go to the other hero if we are faster if(!vstd::contains(ai->visitedHeroes[hero], h)) { vstd::concatenate(ret, ai->ah->howToVisitObj(hero, h, false)); } // Go to the other hero if we are faster if(!vstd::contains(ai->visitedHeroes[h], hero)) { vstd::concatenate(ret, ai->ah->howToVisitObj(h, hero.get(), false)); } } std::vector<const CGObjectInstance *> objs; for(auto obj : ai->visitableObjs) { if(obj->ID == Obj::CREATURE_GENERATOR1) { auto relationToOwner = cb->getPlayerRelations(obj->getOwner(), ai->playerID); //Use flagged dwellings only when there are available creatures that we can afford if(relationToOwner == PlayerRelations::SAME_PLAYER) { auto dwelling = dynamic_cast<const CGDwelling *>(obj); ui32 val = std::min((ui32)value, (ui32)ai->ah->howManyReinforcementsCanBuy(hero.get(), dwelling)); if(val) { for(auto & creLevel : dwelling->creatures) { if(creLevel.first) { for(auto & creatureID : creLevel.second) { auto creature = VLC->creh->creatures[creatureID]; if(ai->ah->freeResources().canAfford(creature->cost)) objs.push_back(obj); //TODO: reserve resources? } } } } } } } for(auto h : cb->getHeroesInfo()) { for(auto obj : objs) { //find safe dwelling if(ai->isGoodForVisit(obj, h)) { vstd::concatenate(ret, ai->ah->howToVisitObj(h, obj)); } } } if(ai->canRecruitAnyHero() && ai->ah->freeGold() > GameConstants::HERO_GOLD_COST) //this is not stupid in early phase of game { if(auto t = ai->findTownWithTavern()) { for(auto h : cb->getAvailableHeroes(t)) //we assume that all towns have same set of heroes { if(h && h->getTotalStrength() > 500) //do not buy heroes with single creatures for GatherArmy { ret.push_back(sptr(RecruitHero())); break; } } } } if(ret.empty()) { const bool allowGatherArmy = false; if(hero == ai->primaryHero()) ret.push_back(sptr(Explore(allowGatherArmy))); else throw cannotFulfillGoalException("No ways to gather army"); } return ret; }