/// Sums the danger values of the plots around the city to determine the danger value of the city
int CvDangerPlots::GetCityDanger (CvCity* pCity)
{
CvAssertMsg(pCity, "pCity is null");
if(!pCity) return 0;
CvAssertMsg(pCity->getOwner() == m_ePlayer, "City does not belong to us");
CvPlot* pPlot = pCity->plot();
int iEvalRange = GC.getAI_DIPLO_PLOT_RANGE_FROM_CITY_HOME_FRONT();
int iDangerValue = 0;
for (int iX = -iEvalRange; iX <= iEvalRange; iX++)
{
for (int iY = -iEvalRange; iY <= iEvalRange; iY++)
{
CvPlot* pEvalPlot = plotXYWithRangeCheck(pPlot->getX(), pPlot->getY(), iX, iY, iEvalRange);
if (!pEvalPlot)
{
continue;
}
iDangerValue += GetDanger(*pEvalPlot);
}
}
return iDangerValue;
}
// Get the maximum damage unit could receive at this plot in the next turn (update this with CvUnitCombat changes!)
int CvDangerPlotContents::GetDanger(const CvUnit* pUnit, AirActionType iAirAction)
{
if (!m_pPlot || !pUnit)
return 0;
// Air units only take damage from interceptions
if (pUnit->getDomainType() == DOMAIN_AIR)
return GetAirUnitDamage(pUnit, iAirAction);
//simple caching for speedup
SUnitStats unitStats(pUnit);
if (unitStats==m_lastUnit)
return m_lastResult;
//otherwise calculate from scratch
int iPlotDamage = 0;
CvCity* pFriendlyCity = NULL;
if ( m_pPlot->isFriendlyCity(*pUnit,true) )
pFriendlyCity = m_pPlot->getPlotCity();
// Civilians can be captured - unless they would need to be embarked on this plot
if (!pUnit->IsCombatUnit() && pUnit->isNativeDomain(m_pPlot))
{
// If plot contains an enemy unit, mark it as max danger
if (m_pPlot->getBestDefender(NO_PLAYER, pUnit->getOwner(), NULL, true))
{
return MAX_INT;
}
for (DangerUnitVector::iterator it = m_apUnits.begin(); it < m_apUnits.end(); ++it)
{
CvUnit* pAttacker = GET_PLAYER(it->first).getUnit(it->second);
if ( pAttacker && !pAttacker->isDelayedDeath() && !pAttacker->IsDead())
{
// If in a city and the city can be captured, we are in highest danger
if (pFriendlyCity)
{
if (GetDanger(pFriendlyCity) + pFriendlyCity->getDamage() > pFriendlyCity->GetMaxHitPoints())
{
return MAX_INT;
}
}
// Look for a possible plot defender
else
{
IDInfo* pUnitNode = m_pPlot->headUnitNode();
CvUnit* pBestDefender = NULL;
while (pUnitNode != NULL)
{
pBestDefender = ::getUnit(*pUnitNode);
pUnitNode = m_pPlot->nextUnitNode(pUnitNode);
if (pBestDefender && pBestDefender->getOwner() == pUnit->getOwner())
{
//fix endless recursion with stacked embarked civilians: defender must also be able to attack
if (pBestDefender->IsCanDefend() && pBestDefender->IsCanAttack())
{
if (pBestDefender != pUnit)
{
if (pBestDefender->isWaiting() || !(pBestDefender->canMove()))
{
break;
}
}
}
}
pBestDefender = NULL;
}
// If there is a defender and it might be killed, high danger
if (pBestDefender && (pBestDefender->isWaiting() || !pBestDefender->canMove()))
{
if (GetDanger(pBestDefender) > pBestDefender->GetCurrHitPoints())
{
return INT_MAX;
}
}
else if (pBestDefender==NULL)
{
//Civilian could be captured on this tile
return MAX_INT;
}
}
}
}
// Damage from features (citadel)
iPlotDamage += GetDamageFromFeatures(pUnit->getOwner());
iPlotDamage += m_bFlatPlotDamage ? m_pPlot->getTurnDamage(pUnit->ignoreTerrainDamage(), pUnit->ignoreFeatureDamage(), pUnit->extraTerrainDamage(), pUnit->extraFeatureDamage()) : 0;
// Damage from cities
for (DangerCityVector::iterator it = m_apCities.begin(); it < m_apCities.end(); ++it)
{
CvCity* pCity = GET_PLAYER(it->first).getCity(it->second);
if (!pCity || pCity->getTeam() == pUnit->getTeam())
continue;
iPlotDamage += pCity->rangeCombatDamage(pUnit, NULL, false, m_pPlot);
}
//update cache
m_lastUnit = unitStats;
m_lastResult = iPlotDamage;
return iPlotDamage;
}
// Capturing a city with a garrisoned unit destroys the garrisoned unit
if (pFriendlyCity)
{
int iCityDanger = GetDanger(pFriendlyCity, (pUnit->getDomainType() == DOMAIN_LAND ? pUnit : NULL));
if (iCityDanger + pFriendlyCity->getDamage() < pFriendlyCity->GetMaxHitPoints())
{
if (pUnit->CanGarrison())
{
// Reconstruct the amount of damage the garrison would absorb for the city
int iUnitShare = (iCityDanger*2*pUnit->GetMaxHitPoints()) / pFriendlyCity->GetMaxHitPoints();
// Damage from features
return iUnitShare + GetDamageFromFeatures(pUnit->getOwner());
}
else
return 0;
}
else
{
return MAX_INT;
}
}
CvPlot* pAttackerPlot = NULL;
CvUnit* pInterceptor = NULL;
// Damage from units
// EXTREMELY IMPORTANT THAT NO RNG IS USED FOR PREDICTION!
// Otherwise a tooltip or similar can change the game state
for (DangerUnitVector::iterator it = m_apUnits.begin(); it < m_apUnits.end(); ++it)
{
CvUnit* pAttacker = GET_PLAYER(it->first).getUnit(it->second);
if (!pAttacker || pAttacker->isDelayedDeath() || pAttacker->IsDead())
continue;
pAttackerPlot = NULL;
if (pAttacker->plot() != m_pPlot)
{
if (pAttacker->IsCanAttackRanged())
{
if (pAttacker->getDomainType() == DOMAIN_AIR)
{
pInterceptor = pAttacker->GetBestInterceptor(*m_pPlot, pUnit);
int iInterceptDamage = 0;
if (pInterceptor)
{
// Always assume interception is successful
iInterceptDamage = pInterceptor->GetInterceptionDamage(pUnit, false);
}
iPlotDamage += pAttacker->GetAirCombatDamage(pUnit, NULL, false, iInterceptDamage, m_pPlot);
}
else
{
iPlotDamage += pAttacker->GetRangeCombatDamage(pUnit, NULL, false, 0, m_pPlot);
}
}
else
{
if (plotDistance(m_iX, m_iY, pUnit->getX(), pUnit->getY()) == 1)
{
pAttackerPlot = pAttacker->plot();
}
iPlotDamage += pAttacker->getCombatDamage(
pAttacker->GetMaxAttackStrength(pAttackerPlot, m_pPlot, pUnit),
pUnit->GetMaxDefenseStrength(m_pPlot, pAttacker), pAttacker->getDamage(), false, false, false);
if (pAttacker->isRangedSupportFire())
{
iPlotDamage += pAttacker->GetRangeCombatDamage(pUnit, NULL, false, 0, m_pPlot, pAttackerPlot);
}
}
}
}
// Damage from cities
for (DangerCityVector::iterator it = m_apCities.begin(); it < m_apCities.end(); ++it)
{
CvCity* pCity = GET_PLAYER(it->first).getCity(it->second);
if (!pCity || pCity->getTeam() == pUnit->getTeam())
continue;
iPlotDamage += pCity->rangeCombatDamage(pUnit, NULL, false, m_pPlot);
}
// Damage from surrounding features (citadel) and the plot itself
iPlotDamage += GetDamageFromFeatures(pUnit->getOwner());
iPlotDamage += m_bFlatPlotDamage ? m_pPlot->getTurnDamage(pUnit->ignoreTerrainDamage(), pUnit->ignoreFeatureDamage(), pUnit->extraTerrainDamage(), pUnit->extraFeatureDamage()) : 0;
//update cache
m_lastUnit = unitStats;
m_lastResult = iPlotDamage;
//done
return iPlotDamage;
}
/// Returns if the unit is in immediate danger
bool CvDangerPlots::IsUnderImmediateThreat(const CvPlot& pPlot) const
{
return GetDanger(pPlot) & 0x1;
}
int TTableTrans::Lookup( TChessBoard& cb, int ply, int depth,
int wtm, int& alpha, int& beta, int& danger )
{
Bitboard* pTable;
short valeur;
// Blanc ou noir?
pTable = (wtm)?m_pTableBlanc:m_pTableNoir;
// Retrouver la position dans la table.
int iPosition = (m_iMaskCle & (int)cb.CleHachage);
pTable += iPosition*2;
// Est-ce la bonne position?
if ( (*(pTable+1) ^ cb.CleHachage) ) {
return 0;
}
int iType;
int DepthValide = (int)GetDepth( (*pTable) );
if ( DepthValide < depth ) {
return 0;
}
else
iType = (int)GetType( (*pTable) );
// Effacer le bit de l'age.
ClearAge( (*pTable) );
valeur = (short)GetValeur( (*pTable) );
danger = (int)GetDanger( (*pTable) );
struct DeuxMot {
int mot1;
int mot2;
};
union Donnee {
TMove move;
DeuxMot deuxmot;
};
Donnee coup;
coup.deuxmot.mot1 = (int)GetCoup( (*pTable) );
cb.HashMove[ply] = coup.move;
g_iTranspositionHit++;
switch( iType ) {
case SCORE_EXACTE:
if ( abs( valeur ) >= MATE-100 ) {
if ( valeur > 0 ) valeur -= (ply-1);
else valeur += (ply-1);
}
alpha = valeur;
return SCORE_EXACTE;
case BORNE_SUPERIEUR:
if ( valeur <= alpha ) {
alpha = valeur;
return BORNE_SUPERIEUR;
}
return EVITER_NULL;
break;
case BORNE_INFERIEUR:
if ( valeur >= beta ) {
beta = valeur;
return BORNE_INFERIEUR;
}
return EVITER_NULL;
break;
}
return EVITER_NULL;
}