//------------------------------------------------------------------------
int CScriptBind_Actor::Fall(IFunctionHandler *pH, Vec3 hitPos)
{
	CActor *pActor = GetActor(pH);
	if (!pActor)
		return pH->EndFunction();

	// [Mikko] 11.10.2007 - Moved the check here, since it was causing too much trouble in CActor.Fall().
	// The point of this filtering is to mostly mask out self-induced collision damage on friendly NPCs
	// which are playing special animations.
	if(!g_pGameCVars->g_enableFriendlyFallAndPlay)
	{
		if (IAnimatedCharacter* pAC = pActor->GetAnimatedCharacter())
		{
			if ((pAC->GetPhysicalColliderMode() == eColliderMode_NonPushable) ||
				(pAC->GetPhysicalColliderMode() == eColliderMode_PushesPlayersOnly))
			{
				// Only mask for player friendly NPCs.
				if (pActor->GetEntity() && pActor->GetEntity()->GetAI())
				{
					IAIObject* pAI = pActor->GetEntity()->GetAI();
					IAIActor* pAIActor = pAI->CastToIAIActor();
					if (pAIActor && pAIActor->GetParameters().m_nSpecies == 0)
					{
						return pH->EndFunction();
					}
				}
			}
		}
	}

	pActor->Fall(hitPos);

	return pH->EndFunction();
}

bool CDialogActorContext::DoLookAt(IEntity *pEntity, IEntity *pLookAtEntity, bool& bReachedTarget)
{
	bReachedTarget = false;
	IAIObject* pAI = pEntity->GetAI();
	if (pAI == 0)
		return false;

	IAIActor* pAIActor = pAI->CastToIAIActor();
	if (!pAIActor)
	{
		return false;
	}

	if (pLookAtEntity == 0)
	{
		pAIActor->ResetLookAt();
		bReachedTarget = true;
		m_bLookAtNeedsReset = false;
	}
	else
	{
		IAIObject* pTargetAI = pLookAtEntity->GetAI();
		Vec3 pos = pTargetAI ? pTargetAI->GetPos() : pLookAtEntity->GetWorldPos();
		bReachedTarget = pAIActor->SetLookAtPointPos(pos, true);
		m_bLookAtNeedsReset = true;
	}

	return true;
}

bool CCannonBall::FilterFriendlyAIHit(IEntity* pHitTarget)
{
	bool bResult = false;

	if (!gEnv->bMultiplayer && pHitTarget)
	{
		const bool bIsClient = (m_ownerId == g_pGame->GetIGameFramework()->GetClientActorId());
		IEntity* pOwnerEntity = gEnv->pEntitySystem->GetEntity(m_ownerId);

		//Filter client hits against friendly AI
		if (pOwnerEntity && bIsClient)
		{
			IAIObject *pOwnerAI = pOwnerEntity->GetAI();
			IAIObject *pTargetAI = pHitTarget->GetAI();
			if (pOwnerAI && pTargetAI && !pTargetAI->IsHostile(pOwnerAI))
			{
				const bool bEnableFriendlyHit = g_pGameCVars->g_enableFriendlyPlayerHits != 0;
				if (!bEnableFriendlyHit)
				{
					g_pGame->GetGameRules()->SetEntityToIgnore(pHitTarget->GetId());
					bResult = true;
				}
			}
		}
	}

	return bResult;
}

bool CDialogActorContext::ExecuteAI(int& goalPipeID, const char* signalText, IAISignalExtraData* pExtraData, bool bRegisterAsListener)
{
	IEntitySystem* pSystem = gEnv->pEntitySystem;
	IEntity* pEntity = pSystem->GetEntity(m_entityID);
	if (pEntity == 0)
		return false;

	IAIObject* pAI = pEntity->GetAI();
	if (pAI == 0)
		return false;

	unsigned short nType=pAI->GetAIType();
	if ( nType != AIOBJECT_ACTOR )
	{
		if ( nType == AIOBJECT_PLAYER )
		{
			goalPipeID = -1;

			// not needed for player 
			// pAI->SetSignal( 10, signalText, pEntity, NULL ); // 10 means this signal must be sent (but sent[!], not set)
			// even if the same signal is already present in the queue
			return true;
		}

		// invalid AIObject type
		return false;
	}

	IPipeUser* pPipeUser = pAI->CastToIPipeUser();
	if (pPipeUser)
	{
		if (goalPipeID > 0)
		{
			pPipeUser->RemoveSubPipe(goalPipeID, true);
			pPipeUser->UnRegisterGoalPipeListener( this, goalPipeID );
			goalPipeID = 0;
		}
	}

	goalPipeID = gEnv->pAISystem->AllocGoalPipeId();
	if (pExtraData == 0)
		pExtraData = gEnv->pAISystem->CreateSignalExtraData();
	pExtraData->iValue = goalPipeID;
	
	if (pPipeUser && bRegisterAsListener)
	{
		pPipeUser->RegisterGoalPipeListener( this, goalPipeID, "CDialogActorContext::ExecuteAI");
	}

	IAIActor* pAIActor = CastToIAIActorSafe(pAI);
	if(pAIActor)
		pAIActor->SetSignal( 10, signalText, pEntity, pExtraData ); // 10 means this signal must be sent (but sent[!], not set)
	// even if the same signal is already present in the queue
	return true;
}

void CGameStateRecorder::StartSession()
{
	m_GameStates.clear();
	m_itSingleActorGameState = m_GameStates.end();
	m_IgnoredEvents.clear();

	const char* filterName = m_demo_actorFilter->GetString();
	// send game events to record the initial game state
/*	if(m_mode)
	{
		CActor *pActor = static_cast<CActor *>(gEnv->pGame->GetIGameFramework()->GetClientActor());
*/
		
	m_pSingleActor = GetActorOfName(filterName);
	if(m_pSingleActor)// && !pActor->GetSpectatorMode() && pActor->IsPlayer())
	{
		m_mode = GPM_SingleActor;
		AddActorToStats(m_pSingleActor);
		m_itSingleActorGameState = m_GameStates.begin();// position of requested actor's id (player by default)
	}
//	}
	else if (!strcmpi(filterName,"all"))
	{
		IAIObjectManager* pAIObjMgr = gEnv->pAISystem->GetAIObjectManager();

		m_mode = GPM_AllActors;
		{
			AutoAIObjectIter it(pAIObjMgr->GetFirstAIObject(OBJFILTER_TYPE, AIOBJECT_ACTOR));
			for(; it->GetObject(); it->Next())
			{
				IAIObject* pObject = it->GetObject();
				if(pObject)
				{
					CActor* pActor = static_cast<CActor *>(gEnv->pGame->GetIGameFramework()->GetIActorSystem()->GetActor(pObject->GetEntityID()));
					if(pActor)
						AddActorToStats(pActor);
				}
			}
		}
		
		{
			AutoAIObjectIter it(pAIObjMgr->GetFirstAIObject(OBJFILTER_TYPE, AIOBJECT_VEHICLE));
			for(; it->GetObject(); it->Next())
			{
				IAIObject* pObject = it->GetObject();
				if(pObject)
				{
					CActor* pActor = static_cast<CActor *>(gEnv->pGame->GetIGameFramework()->GetIActorSystem()->GetActor(pObject->GetEntityID()));
					if(pActor)
						AddActorToStats(pActor);
				}
			}
		}
	}
}

//------------------------------------------------------------------------
int CScriptBind_Action::SetAimQueryMode(IFunctionHandler* pH, ScriptHandle entityId, int mode)
{
	IEntity* entity = gEnv->pEntitySystem->GetEntity(static_cast<EntityId>(entityId.n));
	IAIObject* ai = entity ? entity->GetAI() : NULL;
	CAIProxy* proxy = ai ? static_cast<CAIProxy*>(ai->GetProxy()) : NULL;

	if (proxy)
		proxy->SetAimQueryMode(static_cast<CAIProxy::AimQueryMode>(mode));

	return pH->EndFunction();
}

IAIObject* CTacticalPointLanguageExtender::GetBattleFrontObject() const
{
	IAIObjectManager* pAIObjMgr = gEnv->pAISystem->GetAIObjectManager();
	IAIObject *pObj = pAIObjMgr->GetAIObject(m_battlefrontAIObject);

	if (!pObj)
	{
		// Not created or has been removed (by reset, etc), so create one
		ITacticalPointSystem& tacticalPointSystem = *gEnv->pAISystem->GetTacticalPointSystem();
		pObj = tacticalPointSystem.CreateExtenderDummyObject("Game_BattleFront");
		assert(pObj);
		m_battlefrontAIObject = pObj ? pObj->GetAIObjectID() : 0;
	}
	return pObj;
}

bool CDialogActorContext::DoAnimActionEP(IEntity* pEntity, const char* sAction)
{
	IAIObject* pAI = pEntity->GetAI();
	if (pAI == 0)
		return false;

	IPipeUser* pPipeUser = pAI->CastToIPipeUser();
	if (!pPipeUser)
	{
		return false;
	}

	Vec3 pos = pEntity->GetWorldPos();
	Vec3 dir = pAI->GetMoveDir();

	// EP Direction is either lookat direction or forward direction
	CDialogScript::TActorID lookAt = m_pCurLine->m_lookatActor;
	if (lookAt != CDialogScript::NO_ACTOR_ID)
	{
		IEntity* pLookAtEntity = m_pSession->GetActorEntity(lookAt);
		if (pLookAtEntity != 0)
		{
			dir = pLookAtEntity->GetWorldPos();
			dir -= pos;
			dir.z = 0;
			dir.NormalizeSafe(pAI->GetMoveDir());
		}
	}
	pPipeUser->SetRefPointPos(pos, dir);

	static const Vec3 startRadius (0.1f,0.1f,0.1f);
	static const float dirTolerance = 5.f;
	static const float targetRadius = 0.05f;

	IAISignalExtraData* pData = gEnv->pAISystem->CreateSignalExtraData();
	pData->iValue2 = m_bAnimUseAGSignal ? 1 : 0;
	pData->SetObjectName(sAction);
	pData->point = startRadius;
	pData->fValue = dirTolerance;
	pData->point2.x = targetRadius;

	const bool ok = ExecuteAI(m_exPosAnimPipeID, "ACT_ANIMEX", pData);
	return ok;
}

// Description:
//
// Arguments:
//
// Return:
//
void CPersonalSignalTimer::SetListener(bool bAdd)
{
	IEntity *pEntity = GetEntity();;
	if (pEntity)
	{
		IAIObject *pAIObject = pEntity->GetAI();
		if (pAIObject)
		{
			CAIProxy* pAIProxy = (CAIProxy*)pAIObject->GetProxy();
			if (pAIProxy)
			{
				if (bAdd)
					pAIProxy->AddListener(this);
				else
					pAIProxy->RemoveListener(this);
			}
		}
	}
}

//------------------------------------------------------------------------
void CProjectile::SetParams(EntityId ownerId, EntityId hostId, EntityId weaponId, int damage, int hitTypeId, float damageDrop /*= 0.0f*/, float damageDropMinR /*=0.0f*/)
{
	m_ownerId = ownerId;
	m_weaponId = weaponId;
	m_hostId = hostId;
	m_damage = damage;
	m_hitTypeId = hitTypeId;
	m_damageDropPerMeter = damageDrop;
	m_damageDropMinDisSqr = damageDropMinR*damageDropMinR;

	if(m_hostId || m_ownerId)
	{
		IEntity *pSelfEntity = GetEntity();

		if(pSelfEntity)
			pSelfEntity->AddEntityLink("Shooter", m_ownerId);

		IEntity *pEntity = gEnv->pEntitySystem->GetEntity(m_hostId?m_hostId:m_ownerId);

		if(pEntity)
		{
			if(pSelfEntity)
			{
				//need to set AI species to the shooter - not to be scared of it's own rockets
				IAIObject *projectileAI = pSelfEntity->GetAI();
				IAIObject *shooterAI = pEntity->GetAI();

				if(projectileAI && shooterAI)
					projectileAI->SetFactionID(shooterAI->GetFactionID());
			}

			if(m_pPhysicalEntity && m_pPhysicalEntity->GetType()==PE_PARTICLE)
			{
				pe_params_particle pparams;
				pparams.pColliderToIgnore = pEntity->GetPhysics();

				m_pPhysicalEntity->SetParams(&pparams);
			}
		}
	}
}

void StalkerModule::UpdateInstance(StalkerInstance& instance, float frameTime)
{
	Agent stalker(instance.GetEntityID());

	IAIObject* liveTarget = (stalker.IsValid() ? stalker.GetLiveTarget() : NULL);
	if (liveTarget)
	{
		if (instance.asyncState == AsyncReady)
		{
			instance.asyncState = AsyncInProgress;
			QueueLineOfSightRay(stalker, liveTarget, instance);
		}

		bool inTargetFov = liveTarget->IsPointInFOV(stalker.GetPos()) == IAIObject::eFOV_Primary;
		if (instance.lastInTargetFov != inTargetFov)
		{
			instance.lastInTargetFov = inTargetFov;
			instance.SendSignal(inTargetFov ? "OnInTargetFov" : "OnNotInTargetFov");
		}
	}
}

uint8 CAutoAimManager::GetLocalPlayerFaction() const
{
	if (m_localPlayerFaction != IFactionMap::InvalidFactionID)
	{
		return m_localPlayerFaction;
	}
	else
	{
		IEntity* pLocalPlayerEntity = gEnv->pEntitySystem->GetEntity(g_pGame->GetIGameFramework()->GetClientActorId());
		if (pLocalPlayerEntity)
		{
			IAIObject* pAIObject = pLocalPlayerEntity->GetAI();
			if (pAIObject)
			{
				m_localPlayerFaction = pAIObject->GetFactionID();
			}
		}
	}

	return m_localPlayerFaction;
}

CAIAwarenessToPlayerHelper::VisorIconColor CAIAwarenessToPlayerHelper::GetMarkerColorForAgent(const EntityId entityId) const
{
	CAIAwarenessToPlayerHelper::VisorIconColor defaultColor = Green;
	IEntity* entity = gEnv->pEntitySystem->GetEntity(entityId);
	const IAIObject* ai = entity ? entity->GetAI() : NULL;
	const IAIActor* aiActor = ai ? ai->CastToIAIActor() : NULL;
	IAIObject* playerAiObject = NULL;
	CActor* playerActor = static_cast<CActor*>(gEnv->pGame->GetIGameFramework()->GetClientActor());
	if (playerActor)
	{
		if (IEntity* playerEntity = playerActor->GetEntity())
		{
			playerAiObject = playerEntity->GetAI();
		}
	}
	if (!playerActor || !playerAiObject)
		return defaultColor;

	const bool playerIsCloaked = playerActor->IsCloaked();

	if (aiActor)
	{
		const int alertness = GetAlertnessAffectedByVisibility(*aiActor, *playerAiObject, playerIsCloaked);

		if (alertness == 0)
			return Green;
		else if (alertness == 1)
			return Orange;
		else
			return Red;
	}
	else
	{
		// Turrets are not AI actors so they are treated a bit differently
		// TODO: extend this to generic IAwarenessEntity. for now in C3 is fine as we dont want Towers to be show here.
		if (CTurret* turret = TurretHelpers::FindTurret(entityId))
		{
			if (IEntity* turretEntity = turret->GetEntity())
			{
				if (IAIObject* turretAI = turretEntity->GetAI())
				{
					const bool turretIsDeployed = (turret->GetStateId() == eTurretBehaviorState_Deployed);
					if (!playerIsCloaked && turretIsDeployed && turretAI->IsHostile(playerAiObject) && turret->IsVisionIdInVisionRange(playerAiObject->GetVisionID()))
						return Red;
					else
						return Green;
				}
			}
		}
	}

	return defaultColor;
}

bool CTacticalPointLanguageExtender::GetObject(TObjectParameters& parameters) const
{
	CAIBattleFrontGroup* battleFrontGroup = gGameAIEnv.battleFrontModule
		->GetGroupForEntity(parameters.pOwner.actorEntityId);

	assert(battleFrontGroup);
	if (!battleFrontGroup)
	{
		gEnv->pLog->LogError("CTacticalPointLanguageExtender::GetObject: Couldn't get battlefront group for entity %d", parameters.pOwner.actorEntityId);
		return false;
	}

	IAIObject * pBattleFrontAIObject = GetBattleFrontObject();
	assert(pBattleFrontAIObject);
	if (!pBattleFrontAIObject)
			return false;

	pBattleFrontAIObject->SetPos(battleFrontGroup->GetBattleFrontPosition());

	// Return the result
	// (MATT) The interface is poor for this - it shouldn't need a pointer {2009/12/01}
	parameters.result = pBattleFrontAIObject;
	return true;
}

uint8 CAutoAimManager::GetTargetFaction( IEntity& targetEntity ) const
{
	IAIObject* pAIObject = targetEntity.GetAI();
	return pAIObject ? pAIObject->GetFactionID() : IFactionMap::InvalidFactionID;
}

void CGameAIRecorder::AddRecordBookmark(EntityId requesterId)
{
	assert(requesterId > 0);
	assert(gEnv->bServer);

	if (m_bIsRecording)
	{
		if (!gEnv->bServer)
		{
			CryLogAlways("[AI] Recorder bookmark requested on Client. Only the Server can do this!");
			return;
		}

		IEntity *pEntity = gEnv->pEntitySystem->GetEntity(requesterId);
		IAIObject *pAI = pEntity ? pEntity->GetAI() : NULL;
		if (!pAI)
		{
			CryLogAlways("[AI] Attempting to add recorder bookmark, but the requester does not have an AI!");
			return;
		}

		static int g_iBookmarkCounter = 0;
		int iBookmark = ++g_iBookmarkCounter;

		// (Kevin) We need to unify the timestamp for this, which should be set when the Recorder itself starts.
		//	This way, all screenshots will match up with the recorder per date/time/build. Then we need to
		//	move these into subfolders that contain the date/time/build as the name. (10/08/2009)

		time_t ltime;
		time(&ltime);
		tm *pTm = localtime(&ltime);
		char szDate[128];
		strftime(szDate, 128, "Date(%d %b %Y) Time(%H %M %S)", pTm);

		// Get current version line
		const SFileVersion& fileVersion = gEnv->pSystem->GetFileVersion();

		const bool bTakeScreenshot = (requesterId == g_pGame->GetIGameFramework()->GetClientActorId());

		// Output to log
		CryLogAlways("[AI] --- RECORDER BOOKMARK ADDED ---");
		CryLogAlways("[AI] Id: %d", iBookmark);
		CryLogAlways("[AI] %s", szDate);
		CryLogAlways("[AI] By: %s", pEntity->GetName());

		if (!bTakeScreenshot)
		{
			CryLogAlways("[AI] No Screenshot was made for this bookmark, because requester is not the server!");
		}
		else
		{
			string sScreenShotFile;
			sScreenShotFile.Format("Recorder_Bookmark(%d) Build(%d) %s", iBookmark, fileVersion[0], szDate);

			const string sScreenShotPath = PathUtil::Make("Recordings", sScreenShotFile.c_str(), "jpg");

			// Take screenshot
			CryLogAlways("[AI] Screenshot: \'%s\'", sScreenShotPath.c_str());
			gEnv->pRenderer->ScreenShot(sScreenShotPath.c_str());

			OnAddBookmark(sScreenShotPath);
		}

		// Add bookmark to stream
		IAIRecordable::RecorderEventData data((float)iBookmark);
		pAI->RecordEvent(IAIRecordable::E_BOOKMARK, &data);
	}
}

//------------------------------------------------------------------------
void CProjectile::Launch(const Vec3 &pos, const Vec3 &dir, const Vec3 &velocity, float speedScale)
{
	Matrix34 worldTM=Matrix34(Matrix33::CreateRotationVDir(dir.GetNormalizedSafe()));
	worldTM.SetTranslation(pos);
	GetEntity()->SetWorldTM(worldTM);

	//Must set velocity after position, if not velocity could be reseted for PE_RIGID
	SetVelocity(pos, dir, velocity, speedScale);

	m_initial_pos = pos;
	m_initial_dir = dir;
	m_initial_vel = velocity;

	m_last = pos;

	// Attach effect when fired (not first update)
	if (m_trailEffectId<0)
		TrailEffect(true);

	IAIObject* pAI = 0;
	if ((pAI = GetEntity()->GetAI()) != NULL && pAI->GetAIType() == AIOBJECT_GRENADE)
	{
		IEntity *pOwnerEntity = gEnv->pEntitySystem->GetEntity(m_ownerId);
		if (pOwnerEntity && pOwnerEntity->GetAI())
		{
			pe_status_dynamics dyn;
			pe_status_dynamics dynProj;
			if (pOwnerEntity->GetAI()->GetProxy() && pOwnerEntity->GetPhysics() 
				&& pOwnerEntity->GetPhysics()->GetStatus(&dyn) 
				&& GetEntity()->GetPhysics()->GetStatus(&dynProj))
			{
				
				Vec3 ownerVel( dyn.v);
				Vec3 grenadeDir(dynProj.v.GetNormalizedSafe());

				// Trigger the signal at the predicted landing position.
				Vec3 predictedPos = pos;
				float dummySpeed;
				if (GetWeapon())
					GetWeapon()->PredictProjectileHit(pOwnerEntity->GetPhysics(), pos, dir, velocity, speedScale * m_pAmmoParams->speed, predictedPos, dummySpeed);
/*				bool res = pOwnerEntity->GetAI()->GetProxy()->GetSecWeapon()->PredictProjectileHit(
					pOwnerEntity->GetPhysics(), GetEntity()->GetPos(), grenadeDir, ownerVel, 1, predictedPos, speed);*/

				gEnv->pAISystem->GrenadeEvent(predictedPos, 0.0f, AIGE_GRENADE_THROWN, GetEntity(), pOwnerEntity);

				// Inform the AI that sees the throw
/*				IAIObject* pOwnerAI = pOwnerEntity->GetAI();
				AutoAIObjectIter it(gEnv->pAISystem->GetFirstAIObjectInRange(IAISystem::OBJFILTER_TYPE, AIOBJECT_PUPPET, predictedPos, 20.0f, false));
				for(; it->GetObject(); it->Next())
				{
					IAIObject* pAI = it->GetObject();
					if (!pAI->IsEnabled()) continue;
					if (pOwnerAI && !pOwnerAI->IsHostile(pAI,false))
						continue;

					// Only sense grenades that are on front of the AI and visible when thrown.
					// Another signal is sent when the grenade hits the ground.
					Vec3 delta = GetEntity()->GetPos() - pAI->GetPos();	// grenade to AI
					float dist = delta.NormalizeSafe();
					const float thr = cosf(DEG2RAD(160.0f));
					if (delta.Dot(pAI->GetViewDir()) > thr)
					{
						ray_hit hit;
						static const int objTypes = ent_static | ent_terrain | ent_rigid | ent_sleeping_rigid;
						static const unsigned int flags = rwi_stop_at_pierceable|rwi_colltype_any;
						int res = gEnv->pPhysicalWorld->RayWorldIntersection(pAI->GetPos(), delta*dist, objTypes, flags, &hit, 1);
						if (!res || hit.dist > dist*0.9f)
						{
							IAISignalExtraData* pEData = gEnv->pAISystem->CreateSignalExtraData();	// no leak - this will be deleted inside SendAnonymousSignal
							pEData->point = predictedPos;
							pEData->nID = pOwnerEntity->GetId();
							pEData->iValue = 1;
							gEnv->pAISystem->SendSignal(SIGNALFILTER_SENDER, 1, "OnGrenadeDanger", pAI, pEData);
						}
					}
				}
*/
			}
		}
	}

}

void CLocalPlayerComponent::UpdatePlayerLowHealthStatus( const float oldHealth )
{
	const float healthThrLow = g_pGameCVars->g_playerLowHealthThreshold;
	const float healthThrMid = g_pGameCVars->g_playerMidHealthThreshold;

	const float maxHealth = (float)m_rPlayer.GetMaxHealth();
	const float minHealth = 0; 
	const float currentHealth = m_rPlayer.m_health.GetHealth();
	const bool isDead = m_rPlayer.m_health.IsDead();
	
	CRY_ASSERT( maxHealth > minHealth );

	//Extra 'mid-low' health sound hint
	if ((currentHealth <= healthThrMid) && (oldHealth > healthThrMid))
	{
		m_rPlayer.PlaySound(CPlayer::ESound_EnterMidHealth);
		m_playedMidHealthSound = true;
	}
	else if ((oldHealth <= healthThrMid) && (currentHealth > healthThrMid) && m_playedMidHealthSound)
	{
		m_rPlayer.PlaySound(CPlayer::ESound_EnterMidHealth, false);
		m_rPlayer.PlaySound(CPlayer::ESound_ExitMidHealth);
		m_playedMidHealthSound = false;
	}

	if((currentHealth <= healthThrLow) && (oldHealth > healthThrLow))
	{
		if(!isDead)
		{
			m_rPlayer.SetClientSoundmood(CPlayer::ESoundmood_LowHealth);
		}

		IAIObject* pAI = m_rPlayer.GetEntity()->GetAI();
		if (pAI)
		{
			float mercyTimeScale = 1.0f;
			
			SAIEVENT aiEvent;
			aiEvent.fThreat = mercyTimeScale;
			pAI->Event(AIEVENT_LOWHEALTH, &aiEvent);

			CGameRules* pGameRules = g_pGame->GetGameRules();
			if(pGameRules != NULL)
			{
				IGameRulesDamageHandlingModule* pDamageHandling = pGameRules->GetDamageHandlingModule();
				if(pDamageHandling != NULL)
				{
					pDamageHandling->OnGameEvent(IGameRulesDamageHandlingModule::eGameEvent_LocalPlayerEnteredMercyTime);
				}
			}
		}
	}
	else if((currentHealth > healthThrLow) && (oldHealth <= healthThrLow))
	{
		m_rPlayer.SetClientSoundmood(CPlayer::ESoundmood_Alive);
	}

	const float k_minDamageForHit = 10.0f;	//this is partly to deal with small differences in health over the network
	if(!isDead && (currentHealth < oldHealth - k_minDamageForHit))
	{
		m_rPlayer.SendMusicLogicEvent(eMUSICLOGICEVENT_PLAYER_WOUNDED);
	}

	const float defiantSkillKillLowHealth = maxHealth * g_pGameCVars->g_defiant_lowHealthFraction;

	if(currentHealth > defiantSkillKillLowHealth)
	{
		m_timeEnteredLowHealth = 0.f;
	}
	else if(m_timeEnteredLowHealth <= 0.f)
	{
		m_timeEnteredLowHealth = gEnv->pTimer->GetFrameStartTime();
	}
}

//------------------------------------------------------------------------
void CProjectile::HandleEvent(const SGameObjectEvent &event)
{
	if(m_destroying)
		return;

	FUNCTION_PROFILER(GetISystem(), PROFILE_GAME);

	if(event.event == eGFE_OnCollision)
	{
		EventPhysCollision *pCollision = (EventPhysCollision *)event.ptr;

		if(pCollision == NULL)
			return;

		const SCollisionParams *pCollisionParams = m_pAmmoParams->pCollision;

		if(pCollisionParams)
		{
			if(pCollisionParams->pParticleEffect)
				pCollisionParams->pParticleEffect->Spawn(true, IParticleEffect::ParticleLoc(pCollision->pt, pCollision->n, pCollisionParams->scale));

			if(pCollisionParams->sound)
			{
				_smart_ptr<ISound> pSound = gEnv->pSoundSystem->CreateSound(pCollisionParams->sound, FLAG_SOUND_DEFAULT_3D);

				if(pSound)
				{
					pSound->SetSemantic(eSoundSemantic_Projectile);
					pSound->SetPosition(pCollision->pt);
					pSound->Play();
				}
			}
		}

		// add battledust for bulletimpact
		if(gEnv->bServer && g_pGame->GetGameRules())
		{
			if(CBattleDust *pBD = g_pGame->GetGameRules()->GetBattleDust())
			{
				pBD->RecordEvent(eBDET_ShotImpact, pCollision->pt, GetEntity()->GetClass());
			}
		}

		Ricochet(pCollision);

		//Update damage
		if((m_damageDropPerMeter>0.0001f)&&
				(((pCollision->pt-m_initial_pos).len2()>m_damageDropMinDisSqr)||m_firstDropApplied))
		{

			if(!m_firstDropApplied)
			{
				m_firstDropApplied = true;
				m_initial_pos = m_initial_pos + (m_initial_dir*(sqrt_fast_tpl(m_damageDropMinDisSqr)));
			}

			Vec3 vDiff = pCollision->pt - m_initial_pos;
			float dis  = vDiff.len();

			m_damage -= (int)(floor_tpl(m_damageDropPerMeter * dis));

			//Check m_damage is positive
			if(m_damage<MIN_DAMAGE)
				m_damage=MIN_DAMAGE;

			//Also modify initial position (the projectile could not be destroyed, cause of pirceability)
			m_initial_pos = pCollision->pt;
		}

		// Notify AI system about grenades.
		if(gEnv->pAISystem)
		{
			IAIObject *pAI = 0;

			if((pAI = GetEntity()->GetAI()) != NULL && pAI->GetAIType() == AIOBJECT_GRENADE)
			{
				// Associate event with vehicle if the shooter is in a vehicle (tank cannon shot, etc)
				EntityId ownerId = m_ownerId;
				IActor *pActor = g_pGame->GetIGameFramework()->GetIActorSystem()->GetActor(ownerId);

				if(pActor && pActor->GetLinkedVehicle() && pActor->GetLinkedVehicle()->GetEntityId())
					ownerId = pActor->GetLinkedVehicle()->GetEntityId();

				SAIStimulus stim(AISTIM_GRENADE, AIGRENADE_COLLISION, ownerId, GetEntityId(),
								 GetEntity()->GetWorldPos(), ZERO, 12.0f);
				gEnv->pAISystem->RegisterStimulus(stim);
			}
		}
	}
}

//------------------------------------------------------------------------
int CMelee::Hit(const Vec3 &pt, const Vec3 &dir, const Vec3 &normal, IPhysicalEntity *pCollider, EntityId collidedEntityId, int partId, int ipart, int surfaceIdx, bool remote)
{
	MeleeDebugLog ("CMelee<%p> HitPointDirNormal(remote=%s)", this, remote ? "true" : "false");
	int hitTypeID = 0;

	CActor *pOwnerActor = m_pWeapon->GetOwnerActor();

	if (pOwnerActor)
	{	
		IActor* pTargetActor = g_pGame->GetIGameFramework()->GetIActorSystem()->GetActor(collidedEntityId);
		IEntity* pTarget = pTargetActor ? pTargetActor->GetEntity() : gEnv->pEntitySystem->GetEntity(collidedEntityId);
		IEntity* pOwnerEntity = pOwnerActor->GetEntity();
		IAIObject* pOwnerAI = pOwnerEntity->GetAI();
		
		float damageScale = 1.0f;
		bool silentHit = false;

		if(pTargetActor)
		{
			IAnimatedCharacter* pTargetAC = pTargetActor->GetAnimatedCharacter();
			IAnimatedCharacter* pOwnerAC = pOwnerActor->GetAnimatedCharacter();

			if(pTargetAC && pOwnerAC)
			{
				Vec3 targetFacing(pTargetAC->GetAnimLocation().GetColumn1());
				Vec3 ownerFacing(pOwnerAC->GetAnimLocation().GetColumn1());
				float ownerFacingDot = ownerFacing.Dot(targetFacing);
				float fromBehindDot = cos_tpl(DEG2RAD(g_pGameCVars->pl_melee.angle_limit_from_behind));

				if(ownerFacingDot > fromBehindDot)
				{
#ifndef _RELEASE
					if (g_pGameCVars->g_LogDamage)
					{
						CryLog ("[DAMAGE] %s '%s' is%s meleeing %s '%s' from behind (because %f > %f)",
							pOwnerActor->GetEntity()->GetClass()->GetName(), pOwnerActor->GetEntity()->GetName(), silentHit ? " silently" : "",
							pTargetActor->GetEntity()->GetClass()->GetName(), pTargetActor->GetEntity()->GetName(),
							ownerFacingDot, fromBehindDot);
					}
#endif

					damageScale *= g_pGameCVars->pl_melee.damage_multiplier_from_behind;
				}
			}
		}


		// Send target stimuli
		if (!gEnv->bMultiplayer)
		{
			IAISystem *pAISystem = gEnv->pAISystem;
			ITargetTrackManager *pTargetTrackManager = pAISystem ? pAISystem->GetTargetTrackManager() : NULL;
			if (pTargetTrackManager && pOwnerAI)
			{
				IAIObject *pTargetAI = pTarget ? pTarget->GetAI() : NULL;
				if (pTargetAI)
				{
					const tAIObjectID aiOwnerId = pOwnerAI->GetAIObjectID();
					const tAIObjectID aiTargetId = pTargetAI->GetAIObjectID();

					TargetTrackHelpers::SStimulusEvent eventInfo;
					eventInfo.vPos = pt;
					eventInfo.eStimulusType = TargetTrackHelpers::eEST_Generic;
					eventInfo.eTargetThreat = AITHREAT_AGGRESSIVE;
					pTargetTrackManager->HandleStimulusEventForAgent(aiTargetId, aiOwnerId, "MeleeHit",eventInfo);
					pTargetTrackManager->HandleStimulusEventInRange(aiOwnerId, "MeleeHitNear", eventInfo, 5.0f);
				}
			}
		}

		//Check if is a friendly hit, in that case FX and Hit will be skipped
		bool isFriendlyHit = (pOwnerEntity && pTarget) ? IsFriendlyHit(pOwnerEntity, pTarget) : false;

		if(!isFriendlyHit)
		{
			CPlayer * pAttackerPlayer = pOwnerActor->IsPlayer() ? static_cast<CPlayer*>(pOwnerActor) : NULL;
			float damage = m_pMeleeParams->meleeparams.damage_ai;

			if(pOwnerActor->IsPlayer())
			{
				damage = m_slideKick ? m_pMeleeParams->meleeparams.slide_damage : GetMeleeDamage();
			}

#ifndef _RELEASE
			if (pTargetActor && g_pGameCVars->g_LogDamage)
			{
				CryLog ("[DAMAGE] %s '%s' is%s meleeing %s '%s' applying damage = %.3f x %.3f = %.3f",
					pOwnerActor->GetEntity()->GetClass()->GetName(), pOwnerActor->GetEntity()->GetName(), silentHit ? " silently" : "",
					pTargetActor->GetEntity()->GetClass()->GetName(), pTargetActor->GetEntity()->GetName(),
					damage, damageScale, damage * damageScale);
			}
#endif

			//Generate Hit
			if(pTarget)
			{
				CGameRules *pGameRules = g_pGame->GetGameRules();
				CRY_ASSERT_MESSAGE(pGameRules, "No game rules! Melee can not apply hit damage");

//.........这里部分代码省略.........