TSubgoal RecruitHero::whatToDoToAchieve()
{
const CGTownInstance *t = ai->findTownWithTavern();
if(!t)
return sptr (Goals::BuildThis(BuildingID::TAVERN));
if(cb->getResourceAmount(Res::GOLD) < HERO_GOLD_COST)
return sptr (Goals::CollectRes(Res::GOLD, HERO_GOLD_COST));
return iAmElementar();
}
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 && 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)howManyReinforcementsCanBuy(t->getUpperArmy(), t),
(int)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->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));
}
// 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()));
}
}
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, 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;
}
