/// Is it valid for this player to found a city here?
bool CvCitySiteEvaluator::CanFound(CvPlot* pPlot, const CvPlayer* pPlayer, bool bTestVisible) const
{
CvAssert(pPlot);
if(!pPlot)
return false;
CvPlot* pLoopPlot(NULL);
bool bValid(false);
int iRange(0), iDX(0), iDY(0);
// Used to have a Python hook: CANNOT_FOUND_CITY_CALLBACK
if(GC.getGame().isFinalInitialized())
{
if(GC.getGame().isOption(GAMEOPTION_ONE_CITY_CHALLENGE) && pPlayer && pPlayer->isHuman())
{
if(pPlayer->getNumCities() > 0)
{
return false;
}
}
}
if(pPlot->isImpassable() || pPlot->isMountain())
{
return false;
}
if(pPlot->getFeatureType() != NO_FEATURE)
{
if(GC.getFeatureInfo(pPlot->getFeatureType())->isNoCity())
{
return false;
}
}
if(pPlayer)
{
if(pPlot->isOwned() && (pPlot->getOwner() != pPlayer->GetID()))
{
return false;
}
}
CvTerrainInfo* pTerrainInfo = GC.getTerrainInfo(pPlot->getTerrainType());
if(!bValid)
{
if(pTerrainInfo->isFound())
{
bValid = true;
}
}
if(!bValid)
{
if(pTerrainInfo->isFoundCoast())
{
if(pPlot->isCoastalLand())
{
bValid = true;
}
}
}
if(!bValid)
{
if(pTerrainInfo->isFoundFreshWater())
{
if(pPlot->isFreshWater())
{
bValid = true;
}
}
}
// Used to have a Python hook: CAN_FOUND_CITIES_ON_WATER_CALLBACK
if(pPlot->isWater())
{
return false;
}
if(!bValid)
{
return false;
}
if(!bTestVisible)
{
// look at same land mass
iRange = GC.getMIN_CITY_RANGE();
for(iDX = -(iRange); iDX <= iRange; iDX++)
{
for(iDY = -(iRange); iDY <= iRange; iDY++)
{
pLoopPlot = plotXYWithRangeCheck(pPlot->getX(), pPlot->getY(), iDX, iDY, iRange);
if(pLoopPlot != NULL)
{
if(pLoopPlot->isCity())
{
if(pLoopPlot->getLandmass() == pPlot->getLandmass())
{
return false;
}
else if(hexDistance(iDX, iDY) < iRange) // one less for off shore
{
return false;
}
}
}
}
}
}
return true;
}
bool CvCitySiteEvaluator::CanFound(const CvPlot* pPlot, const CvPlayer* pPlayer, bool bIgnoreDistanceToExistingCities, const CvUnit* pUnit) const
#else
bool CvCitySiteEvaluator::CanFound(CvPlot* pPlot, const CvPlayer* pPlayer, bool bIgnoreDistanceToExistingCities) const
#endif
{
CvAssert(pPlot);
if(!pPlot)
return false;
CvPlot* pLoopPlot(NULL);
bool bValid(false);
// Used to have a Python hook: CANNOT_FOUND_CITY_CALLBACK
if(GC.getGame().isFinalInitialized())
{
if(GC.getGame().isOption(GAMEOPTION_ONE_CITY_CHALLENGE) && pPlayer && pPlayer->isHuman())
{
if(pPlayer->getNumCities() > 0)
{
return false;
}
}
}
if (pUnit)
{
if(!pUnit->canEnterTerrain(*pPlot))
{
return false;
}
}
else if(!pPlot->isValidMovePlot(pPlayer ? pPlayer->GetID() : NO_PLAYER ))
{
return false;
}
if(pPlot->IsNaturalWonder())
return false;
if(pPlot->getFeatureType() != NO_FEATURE)
{
if(GC.getFeatureInfo(pPlot->getFeatureType())->isNoCity())
{
return false;
}
}
if(pPlayer)
{
if(pPlot->isOwned() && (pPlot->getOwner() != pPlayer->GetID()))
{
return false;
}
}
CvTerrainInfo* pTerrainInfo = GC.getTerrainInfo(pPlot->getTerrainType());
if(!bValid)
{
if(pTerrainInfo->isFound())
{
bValid = true;
}
}
if(!bValid)
{
if(pTerrainInfo->isFoundCoast())
{
if(pPlot->isCoastalLand())
{
bValid = true;
}
}
}
if(!bValid)
{
if(pTerrainInfo->isFoundFreshWater())
{
if(pPlot->isFreshWater_cached())
{
bValid = true;
}
}
}
// Used to have a Python hook: CAN_FOUND_CITIES_ON_WATER_CALLBACK
if(pPlot->isWater())
{
return false;
}
if(!bValid)
{
return false;
}
#if defined(MOD_BALANCE_CORE)
if(pPlayer && pPlot->IsAdjacentOwnedByOtherTeam(pPlayer->getTeam()))
{
return false;
}
if(!bIgnoreDistanceToExistingCities)
{
int iMinDist(0), iDX(0), iDY(0);
// look at same land mass
iMinDist = /*3*/ GC.getMIN_CITY_RANGE();
if(pPlayer && pPlayer->isMinorCiv())
{
if(GC.getMap().getWorldInfo().getMinDistanceCityStates() > 0)
{
iMinDist = GC.getMap().getWorldInfo().getMinDistanceCityStates();
}
}
else if(GC.getMap().getWorldInfo().getMinDistanceCities() > 0)
{
iMinDist = GC.getMap().getWorldInfo().getMinDistanceCities();
}
for(iDX = -(iMinDist); iDX <= iMinDist; iDX++)
{
for(iDY = -(iMinDist); iDY <= iMinDist; iDY++)
{
pLoopPlot = plotXYWithRangeCheck(pPlot->getX(), pPlot->getY(), iDX, iDY, iMinDist);
if(pLoopPlot != NULL)
{
if(pLoopPlot->isCity())
{
if(pLoopPlot->getLandmass() == pPlot->getLandmass())
{
return false; //we know that distance <= iMinDist here
}
else if(hexDistance(iDX, iDY) < iMinDist) // one less for off shore
{
return false;
}
}
}
}
}
}
#endif
return true;
}
