C++ CvUnit::IsDead方法代码示例

// Can this tile be attacked by an enemy unit or city next turn?
bool CvDangerPlotContents::IsUnderImmediateThreat(const CvUnit* pUnit)
{
	if (!m_pPlot || !pUnit)
		return false;

	// Air units operate off of intercepts instead of units/cities that can attack them
	if (pUnit->getDomainType() == DOMAIN_AIR)
	{
		if (pUnit->GetBestInterceptor(*m_pPlot))
		{
			return true;
		}
	}
	else
	{
		// Cities in range
		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())
			{
				return true;
			}
		}

		// Units in range
		for (DangerUnitVector::iterator it = m_apUnits.begin(); it < m_apUnits.end(); ++it)
		{
			CvUnit* pUnit = GET_PLAYER(it->first).getUnit(it->second);
			if (pUnit && !pUnit->isDelayedDeath() && !pUnit->IsDead())
			{
				return true;
			}
		}

		// Citadel etc in range
		if (GetDamageFromFeatures(pUnit->getOwner()) > 0)
		{
			return true;
		}
	}

	// Terrain damage is greater than heal rate
	int iMinimumDamage = m_bFlatPlotDamage ? m_pPlot->getTurnDamage(pUnit->ignoreTerrainDamage(), pUnit->ignoreFeatureDamage(), pUnit->extraTerrainDamage(), pUnit->extraFeatureDamage()) : 0;

	if (pUnit->canHeal(m_pPlot))
	{
		iMinimumDamage -= pUnit->healRate(m_pPlot);
	}

	return (iMinimumDamage > 0);
}

// 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);
//.........这里部分代码省略.........

int CvDangerPlotContents::GetAirUnitDamage(const CvUnit* pUnit, AirActionType iAirAction)
{
	if (pUnit->getDomainType() != DOMAIN_AIR)
		return 0;
	
	if (iAirAction == AIR_ACTION_INTERCEPT) // Max damage from a potential air sweep against our intercept
	{
		int iBestAirSweepDamage = 0;
		int iCurrentAirSweepDamage = 0;
		for (DangerUnitVector::iterator it = m_apUnits.begin(); it < m_apUnits.end(); ++it)
		{
			CvUnit* pAttacker = GET_PLAYER(it->first).getUnit(it->second);

			if (!pAttacker || !pAttacker->canAirSweep() || pAttacker->isDelayedDeath() || pAttacker->IsDead())
			{
				continue;
			}
			int iAttackerStrength = pAttacker->GetMaxRangedCombatStrength(pUnit, /*pCity*/ NULL, true, false);
			iAttackerStrength *= (100 + pAttacker->GetAirSweepCombatModifier());
			iAttackerStrength /= 100;
			int iDefenderStrength = pUnit->GetMaxRangedCombatStrength(pUnit, /*pCity*/ NULL, false, false);
			iCurrentAirSweepDamage = pUnit->getCombatDamage(iDefenderStrength, iAttackerStrength,
				pUnit->getDamage(), /*bIncludeRand*/ false, /*bAttackerIsCity*/ false, /*bDefenderIsCity*/ false);

			// It's a slower to have this in the unit loop instead of after the best damage has been calculated, but it's also more accurate
			if (iCurrentAirSweepDamage >= pAttacker->GetCurrHitPoints())
			{
				int iReceiverDamage = pAttacker->getCombatDamage(iAttackerStrength, iDefenderStrength,
					pAttacker->getDamage(), /*bIncludeRand*/ false, /*bAttackerIsCity*/ false, /*bDefenderIsCity*/ false);
				if (iReceiverDamage >= pUnit->GetCurrHitPoints())
				{
					if (iReceiverDamage + pUnit->getDamage() > iCurrentAirSweepDamage + pAttacker->getDamage())
					{
						iCurrentAirSweepDamage = pUnit->GetCurrHitPoints() - 1;
					}
				}
			}
			if (iCurrentAirSweepDamage > iBestAirSweepDamage)
			{
				iBestAirSweepDamage = iCurrentAirSweepDamage;
			}
		}
		return iBestAirSweepDamage;
	}
	else
	{
		CvUnit* pInterceptor = pUnit->GetBestInterceptor(*m_pPlot);
		if (pInterceptor)
		{
			// Air sweeps take modified damage from interceptors
			if (iAirAction == AIR_ACTION_SWEEP)
			{
				if (pInterceptor->getDomainType() != DOMAIN_AIR)
				{
					return (pInterceptor->GetInterceptionDamage(pUnit, false) * (100+GC.getAIR_SWEEP_INTERCEPTION_DAMAGE_MOD()))/100;
				}
				else
				{
					int iAttackerStrength = pUnit->GetMaxRangedCombatStrength(pInterceptor, /*pCity*/ NULL, true, false);
					iAttackerStrength *= (100 + pUnit->GetAirSweepCombatModifier());
					iAttackerStrength /= 100;
					int iDefenderStrength = pInterceptor->GetMaxRangedCombatStrength(pUnit, /*pCity*/ NULL, false, false);
					int iReceiveDamage = pInterceptor->getCombatDamage(iDefenderStrength, iAttackerStrength,
						pInterceptor->getDamage(), /*bIncludeRand*/ false, /*bAttackerIsCity*/ false, /*bDefenderIsCity*/ false);
					if (iReceiveDamage >= pUnit->GetCurrHitPoints())
					{
						int iDamageDealt = pUnit->getCombatDamage(iAttackerStrength, iDefenderStrength,
							pUnit->getDamage(), /*bIncludeRand*/ false, /*bAttackerIsCity*/ false, /*bDefenderIsCity*/ false);
						if (iDamageDealt >= pInterceptor->GetCurrHitPoints())
						{
							if (iDamageDealt + pInterceptor->getDamage() > iReceiveDamage + pUnit->getDamage())
							{
								iReceiveDamage = pUnit->GetCurrHitPoints() - 1;
							}
						}
					}
					return iReceiveDamage;
				}
			}
			else
			{
				// Always assume interception is successful
				return pInterceptor->GetInterceptionDamage(pUnit, false);
			}
		}
	}

	return 0;
}