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vcmi/AI/VCAI/Goals/BuildThis.cpp
2023-08-25 13:38:02 +03:00

69 lines
1.5 KiB
C++

/*
* BuildThis.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 "BuildThis.h"
#include "../VCAI.h"
#include "../AIUtility.h"
#include "../AIhelper.h"
#include "../FuzzyHelper.h"
#include "../ResourceManager.h"
#include "../BuildingManager.h"
#include "../../../lib/mapObjects/CGTownInstance.h"
#include "../../../lib/constants/StringConstants.h"
using namespace Goals;
bool BuildThis::operator==(const BuildThis & other) const
{
return town == other.town && bid == other.bid;
}
TSubgoal BuildThis::whatToDoToAchieve()
{
auto b = BuildingID(bid);
// find town if not set
if(!town && hero)
town = hero->visitedTown;
if(!town)
{
for(const CGTownInstance * t : cb->getTownsInfo())
{
switch(cb->canBuildStructure(town, b))
{
case EBuildingState::ALLOWED:
town = t;
break; //TODO: look for prerequisites? this is not our reponsibility
default:
continue;
}
}
}
if(town) //we have specific town to build this
{
switch(cb->canBuildStructure(town, b))
{
case EBuildingState::ALLOWED:
case EBuildingState::NO_RESOURCES:
{
auto res = town->town->buildings.at(BuildingID(bid))->resources;
return ai->ah->whatToDo(res, iAmElementar()); //realize immediately or gather resources
}
break;
default:
throw cannotFulfillGoalException("Not possible to build");
}
}
else
throw cannotFulfillGoalException("Cannot find town to build this");
}