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/*
* CollectRes.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 "../VCAI.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<VCAI> ai;
extern FuzzyHelper * fh;
using namespace Goals;
bool CollectRes::operator==(const CollectRes & other) const
{
return resID == other.resID;
}
TGoalVec CollectRes::getAllPossibleSubgoals()
{
TGoalVec ret;
auto givesResource = [this](const CGObjectInstance * obj) -> bool
{
//TODO: move this logic to object side
//TODO: remember mithril exists
//TODO: water objects
//TODO: Creature banks
//return false first from once-visitable, before checking if they were even visited
switch (obj->ID.num)
{
case Obj::TREASURE_CHEST:
return resID == Res::GOLD;
break;
case Obj::RESOURCE:
return obj->subID == resID;
break;
case Obj::MINE:
return (obj->subID == resID &&
(cb->getPlayerRelations(obj->tempOwner, ai->playerID) == PlayerRelations::ENEMIES)); //don't capture our mines
break;
case Obj::CAMPFIRE:
return true; //contains all resources
break;
case Obj::WINDMILL:
switch (resID)
{
case Res::GOLD:
case Res::WOOD:
return false;
}
break;
case Obj::WATER_WHEEL:
if (resID != Res::GOLD)
return false;
break;
case Obj::MYSTICAL_GARDEN:
if ((resID != Res::GOLD) && (resID != Res::GEMS))
return false;
break;
case Obj::LEAN_TO:
case Obj::WAGON:
if (resID != Res::GOLD)
return false;
break;
default:
return false;
break;
}
return !vstd::contains(ai->alreadyVisited, obj); //for weekly / once visitable
};
std::vector<const CGObjectInstance *> objs;
for (auto obj : ai->visitableObjs)
{
if (givesResource(obj))
objs.push_back(obj);
}
for (auto h : cb->getHeroesInfo())
{
std::vector<const CGObjectInstance *> ourObjs(objs); //copy common objects
for (auto obj : ai->reservedHeroesMap[h]) //add objects reserved by this hero
{
if (givesResource(obj))
ourObjs.push_back(obj);
}
for (auto obj : ourObjs)
{
auto waysToGo = ai->ah->howToVisitObj(h, ObjectIdRef(obj));
vstd::concatenate(ret, waysToGo);
}
}
return ret;
}
TSubgoal CollectRes::whatToDoToAchieve()
{
auto goals = getAllPossibleSubgoals();
auto trade = whatToDoToTrade();
if (!trade->invalid())
goals.push_back(trade);
if (goals.empty())
return sptr(Explore()); //we can always do that
else
return fh->chooseSolution(goals); //TODO: evaluate trading
}
TSubgoal CollectRes::whatToDoToTrade()
{
std::vector<const IMarket *> markets;
std::vector<const CGObjectInstance *> visObjs;
ai->retrieveVisitableObjs(visObjs, true);
for (const CGObjectInstance * obj : visObjs)
{
if (const IMarket * m = IMarket::castFrom(obj, false))
{
if (obj->ID == Obj::TOWN && obj->tempOwner == ai->playerID && m->allowsTrade(EMarketMode::RESOURCE_RESOURCE))
markets.push_back(m);
else if (obj->ID == Obj::TRADING_POST)
markets.push_back(m);
}
}
boost::sort(markets, [](const IMarket * m1, const IMarket * m2) -> bool
{
return m1->getMarketEfficiency() < m2->getMarketEfficiency();
});
markets.erase(boost::remove_if(markets, [](const IMarket * market) -> bool
{
if (!(market->o->ID == Obj::TOWN && market->o->tempOwner == ai->playerID))
{
if (!ai->isAccessible(market->o->visitablePos()))
return true;
}
return false;
}), markets.end());
if (!markets.size())
{
for (const CGTownInstance * t : cb->getTownsInfo())
{
if (cb->canBuildStructure(t, BuildingID::MARKETPLACE) == EBuildingState::ALLOWED)
return sptr(BuildThis(BuildingID::MARKETPLACE, t).setpriority(2));
}
}
else
{
const IMarket * m = markets.back();
//attempt trade at back (best prices)
int howManyCanWeBuy = 0;
for (Res::ERes i = Res::WOOD; i <= Res::GOLD; vstd::advance(i, 1))
{
if (i == resID)
continue;
int toGive = -1, toReceive = -1;
m->getOffer(i, resID, toGive, toReceive, EMarketMode::RESOURCE_RESOURCE);
assert(toGive > 0 && toReceive > 0);
howManyCanWeBuy += toReceive * (ai->ah->freeResources()[i] / toGive);
}
if (howManyCanWeBuy >= value)
{
auto backObj = cb->getTopObj(m->o->visitablePos()); //it'll be a hero if we have one there; otherwise marketplace
assert(backObj);
auto objid = m->o->id.getNum();
if (backObj->tempOwner != ai->playerID) //top object not owned
{
return sptr(VisitObj(objid)); //just go there
}
else //either it's our town, or we have hero there
{
return sptr(Trade(resID, value, objid).setisElementar(true)); //we can do this immediately
}
}
}
return sptr(Invalid()); //cannot trade
}
bool CollectRes::fulfillsMe(TSubgoal goal)
{
if (goal->resID == resID)
if (goal->value >= value)
return true;
return false;
}
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