bot.cpp

#include <stdio.h>
#include <math.h>

#include <good/string.h>
#include <good/string_buffer.h>

#include "clients.h"
#include "chat.h"
#include "waypoint_navigator.h"
#include "server_plugin.h"
#include "type2string.h"

#include "bot.h"

#include "in_buttons.h"
#include "public/irecipientfilter.h"

// memdbgon must be the last include file in a .cpp file!!!
#include "public/tier0/memdbgon.h"


//----------------------------------------------------------------------------------------------------------------
extern char* szMainBuffer;
extern int iMainBufferSize;


//----------------------------------------------------------------------------------------------------------------

bool CBot::bAssumeUnknownWeaponManual = false;
TBotIntelligence CBot::iMinIntelligence = EBotFool;
TBotIntelligence CBot::iMaxIntelligence = EBotPro;
TTeam CBot::iDefaultTeam = 0;
TClass CBot::iDefaultClass = -1;
int CBot::iChangeClassRound = 0;

TFightStrategyFlags CBot::iDefaultFightStrategy = FFightStrategyComeCloserIfFar;
float CBot::fNearDistanceSqr = SQR(200);
float CBot::fFarDistanceSqr = SQR(500);
float CBot::fInvalidWaypointSuicideTime = 10.0f;

float CBot::m_fTimeIntervalCheckUsingMachines = 0.5f;
int CBot::m_iCheckEntitiesPerFrame = 4;


//----------------------------------------------------------------------------------------------------------------
CBot::CBot( edict_t* pEdict, TBotIntelligence iIntelligence, TClass iClass ):
    CPlayer(pEdict, true), m_pController( CBotrixPlugin::pBotManager->GetBotController(m_pEdict) ),
    m_iIntelligence(iIntelligence), m_iClass(iClass), m_iClassChange(0),
    r( rand()&0xFF ), g( rand()&0xFF ), b( rand()&0xFF ),
    m_aNearPlayers(CPlayers::Size()), m_aSeenEnemies(CPlayers::Size()),
	m_aEnemies(CPlayers::Size()), m_aAllies(CPlayers::Size()), 
	m_iNextCheckPlayer(0), m_pCurrentEnemy(NULL),
    m_cAttackDuckRangeSqr(0, SQR(400)),
    m_bTest(false), m_bCommandAttack(true), m_bCommandPaused(false), m_bCommandStopped(false),
#if defined(DEBUG) || defined(_DEBUG)
    m_bDebugging(true),
#else
    m_bDebugging(false),
#endif
    m_bDontBreakObjects(false), m_bDontThrowObjects(false),
    m_bFeatureAttackDuckEnabled(iIntelligence < EBotNormal), m_bFeatureWeaponCheck(true),
    m_bSaidNoWaypoints(false)
{
    m_aPickedItems.reserve(16);
    for ( TItemType i=0; i < EItemTypeCollisionTotal; ++i )
    {
        int iSize = CItems::GetItems(i).size() >> 4;
        if ( iSize == 0 )
            iSize = 2;
        m_aNearItems[i].reserve( iSize );
        m_aNearestItems[i].reserve( 16 );
    }
}


//----------------------------------------------------------------------------------------------------------------
void CBot::ConsoleCommand( const char* szCommand )
{
    BotMessage( "%s -> Executing command '%s'.", GetName(), szCommand );
    CBotrixPlugin::pServerPluginHelpers->ClientCommand(m_pEdict, szCommand);
}


//----------------------------------------------------------------------------------------------------------------
// Class used to send say messages to server.
//----------------------------------------------------------------------------------------------------------------
class UserRecipientFilter: public IRecipientFilter
{
public:
    UserRecipientFilter(int iUserIndex): m_iUserIndex(iUserIndex) {}

    virtual bool    IsReliable() const { return true; }
    virtual bool    IsInitMessage() const { return false; }

    virtual int        GetRecipientCount() const { return 1; }
    virtual int        GetRecipientIndex( int ) const { return m_iUserIndex;}
protected:
    int m_iUserIndex;
};

//----------------------------------------------------------------------------------------------------------------
void CBot::Say( bool bTeamOnly, const char* szFormat, ... )
{
    static char szBotBuffer[2048];
    good::string_buffer sBuffer(szBotBuffer, 2048, false);
    if ( bTeamOnly )
        sBuffer << "(TEAM) " << GetName() << ": ";
    //sBuffer << ( bTeamOnly ? "say_team " : "say" );

    int iSize = sBuffer.size();

    va_list vaList;
    va_start(vaList, szFormat);
    vsprintf(&szBotBuffer[iSize], szFormat, vaList);
    va_end(vaList);

    //CBotrixPlugin::pServerPluginHelpers->ClientCommand(m_pEdict, szBotBuffer);
    //CBotrixPlugin::pEngineServer->ClientCommand(m_pEdict, "%s", szBotBuffer);

#ifdef BOTRIX_SEND_BOT_CHAT
    for ( int i = 0; i <= CPlayers::GetPlayersCount(); i++ )
    {
        CPlayer* pPlayer = CPlayers::Get(i);

        if ( !pPlayer || pPlayer->IsBot() )
            continue;

        if ( bTeamOnly && (pPlayer->GetTeam() != 0) && (pPlayer->GetTeam() != GetTeam()) )
            continue;

        UserRecipientFilter user( pPlayer->GetIndex() + 1 );
        bf_write* bf = CBotrixPlugin::pEngineServer->UserMessageBegin(&user, 3);
        if ( bf )
        {
            bf->WriteByte( m_iIndex );
            bf->WriteString( szBotBuffer );
            bf->WriteByte( true );
        }
        CBotrixPlugin::pEngineServer->MessageEnd();
    //}

    // Echo to server console.
    if ( CBotrixPlugin::pEngineServer->IsDedicatedServer() )
         Msg( "%s", szBotBuffer );
#endif

    if ( !CBotrixPlugin::instance->GenerateSayEvent( m_pEdict, szBotBuffer, bTeamOnly ) )
    {
        BLOG_E("%s -> %s", GetName(), szBotBuffer);
    }
}


//----------------------------------------------------------------------------------------------------------------
void CBot::TestWaypoints( TWaypointId iFrom, TWaypointId iTo )
{
    BASSERT( CWaypoints::IsValid(iFrom) && CWaypoints::IsValid(iTo), CPlayers::KickBot(this) );
    CWaypoint& wFrom = CWaypoints::Get(iFrom);

    Vector vSetOrigin = wFrom.vOrigin;
    vSetOrigin.z -= CMod::GetVar( EModVarPlayerEye ); // Make bot appear on the ground (waypoints are at eye level).

    m_pController->SetAbsOrigin(vSetOrigin);

    iCurrentWaypoint = iFrom;
    m_iDestinationWaypoint = iTo;

    m_bDontAttack = m_bDestinationChanged = m_bNeedMove = m_bLastNeedMove = m_bUseNavigatorToMove = m_bTest = true;
}

//----------------------------------------------------------------------------------------------------------------
void CBot::AddWeapon( TWeaponId iWeaponId )
{
	if ( CWeapons::IsValid( iWeaponId ) ) // As if grabbed a weapon: add default bullets and weapon.
	{
		m_pController->SetActiveWeapon( CWeapons::Get(iWeaponId)->GetBaseWeapon()->pWeaponClass->sClassName.c_str() );
		m_aWeapons[iWeaponId].AddWeapon();
	}
    else
        WeaponCheckCurrent(true);
}


//----------------------------------------------------------------------------------------------------------------
void CBot::Activated()
{
    CPlayer::Activated();
	BotDebug( "%s -> Activated.", GetName() );
}

//----------------------------------------------------------------------------------------------------------------
void CBot::Respawned()
{
    CPlayer::Respawned();
	BotDebug( "%s -> Respawned.", GetName() );

	m_bProtected = true;
	
	if ( iChangeClassRound && m_iClassChange )
        m_iClassChange--;

#ifdef BOTRIX_CHAT
    m_iPrevChatMate = m_iPrevTalk = -1;
    m_bTalkStarted = false;

    m_cChat.iSpeaker = m_iIndex;
    m_iObjective = EBotChatUnknown;

    m_bPerformingRequest = false;
#endif

    m_cCmd.Reset();
    m_cCmd.viewangles = m_pController->GetLocalAngles();

    m_cNavigator.Stop();

    //m_vLastVelocity.x = m_vLastVelocity.y = m_vLastVelocity.z = 0.0f;

    m_fPrevThinkTime = m_fStuckCheckTime = 0.0f;

    for ( TItemType i=0; i < EItemTypeCollisionTotal; ++i )
    {
        m_iNextNearItem[i] = 0;
        m_aNearItems[i].clear();
        m_aNearestItems[i].clear();
    }
    m_aAvoidAreas.clear();

    m_iNextCheckPlayer = 0;
    m_aNearPlayers.reset();
    m_aSeenEnemies.reset();
    m_pCurrentEnemy = NULL;

    // Don't clear picked items, as bot still know which were taken previously.
    m_iCurrentPickedItem = 0;

    // Set default flags.
    m_bDontAttack = m_bFlee = m_bNeedSetWeapon = m_bNeedReload = m_bAttackDuck = false;

    m_bNeedAim = m_bUseSideLook = false;
    m_bDontAttack = m_bDestinationChanged = m_bNeedMove = m_bLastNeedMove = m_bUseNavigatorToMove = m_bTest;

    m_bPathAim = m_bLockNavigatorMove = m_bLockMove = false;
    m_bMoveFailure = false;

    m_bStuck = m_bResolvingStuck = m_bNeedCheckStuck = m_bStuckBreakObject = m_bStuckUsePhyscannon = false;
    m_bStuckTryingSide = m_bStuckTryGoLeft = m_bStuckGotoCurrent = m_bStuckGotoPrevious = m_bRepeatWaypointAction = false;

    m_bLadderMove = m_bNeedStop = m_bNeedDuck = m_bNeedWalk = m_bNeedSprint = false;
    m_bNeedFlashlight = m_bUsingFlashlight = false;
	m_bNeedUse = m_bAlreadyUsed = m_bUsingHealthMachine = m_bUsingArmorMachine = false;
    m_bNeedAttack = m_bNeedAttack2 = m_bNeedJumpDuck = m_bNeedJump = false;

    m_bInvalidWaypointStart = false;

    m_fNextDrawNearObjectsTime = 0.0f;

    // Check near items (skip objects).
    Vector vFoot = m_pController->GetLocalOrigin();
    for ( TItemType iType = 0; iType < EItemTypeCollisionTotal; ++iType )
    {
        good::vector<TItemIndex>& aNear = m_aNearItems[iType];
        good::vector<TItemIndex>& aNearest = m_aNearestItems[iType];

        const good::vector<CItem>& aItems = CItems::GetItems(iType);
        if ( aItems.size() == 0)
            continue;

        for ( TItemIndex i = 0; i < (int)aItems.size(); ++i )
        {
            const CItem* pItem = &aItems[i];

            if ( pItem->IsFree() || !pItem->IsOnMap() ) // Item is picked or broken.
                continue;

            Vector vOrigin = pItem->CurrentPosition();
            float fDistSqr = vFoot.DistToSqr( vOrigin );
            if ( fDistSqr <= pItem->fPickupDistanceSqr )
                aNearest.push_back(i);
            else if ( fDistSqr <= CMod::iNearItemMaxDistanceSqr ) // Item is close.
                aNear.push_back(i);
        }
    }

	ConfigureRespawnWeapons();
}

//----------------------------------------------------------------------------------------------------------------
void CBot::ConfigureRespawnWeapons()
{
	if ( CMod::bRemoveWeapons )
		WeaponsRemove();

	if ( m_bFeatureWeaponCheck )
	{
		CWeapons::GetRespawnWeapons( m_aWeapons, m_pPlayerInfo->GetTeamIndex(), m_iClass );
		WeaponsScan();
		if ( !CWeapons::IsValid( m_iWeapon ) )
			WeaponCheckCurrent( true );
	}
	else
		m_iMeleeWeapon = m_iPhyscannon = m_iBestWeapon = m_iWeapon = EWeaponIdInvalid;

	for ( int i = 0; i < CMod::aDefaultWeapons.size(); ++i )
	{
		TWeaponId iWeapon = CMod::aDefaultWeapons[i];
		if ( m_aWeapons[iWeapon].IsPresent() ) // First check if bot has that weapon.
			ChangeWeapon( iWeapon );
		else
			AddWeapon( iWeapon );
	}
}

//----------------------------------------------------------------------------------------------------------------
void CBot::Dead()
{
    BotDebug( "%s -> Dead.", GetName() );
    CPlayer::Dead();
    if ( m_bTest )
        CPlayers::KickBot(this);
}

//----------------------------------------------------------------------------------------------------------------
void CBot::PlayerDisconnect( int iPlayerIndex, CPlayer* pPlayer )
{
    m_aNearPlayers.reset(iPlayerIndex);
    m_aSeenEnemies.reset(iPlayerIndex);

    if ( pPlayer == m_pCurrentEnemy )
        EraseCurrentEnemy();
}

//----------------------------------------------------------------------------------------------------------------
#ifdef BOTRIX_CHAT
void CBot::ReceiveChatRequest( const CBotChat& cRequest )
{
    BASSERT( (cRequest.iDirectedTo == m_iIndex) && (cRequest.iSpeaker != -1), return);
    if (iChatMate == -1)
        iChatMate = cRequest.iSpeaker;

    CBotChat cResponse(EBotChatUnknown, m_iIndex, cRequest.iSpeaker); // TODO: m_cChat.
    if ( iChatMate == cRequest.iSpeaker )
    {
        // If conversation is not started, decide whether to help teammate or not (random).
        if ( !m_bTalkStarted )
        {
            m_bTalkStarted = true;
            m_iPrevTalk = -1;
            m_bHelpingMate = rand()&1;
            if ( !m_bHelpingMate ) // Force to help admin of the server.
            {
                CPlayer* pSpeaker = CPlayers::Get(cRequest.iSpeaker);
                if ( !pSpeaker->IsBot() )
                {
                    CClient* pClient = (CClient*)pSpeaker;
                    if ( FLAG_ALL_SET_OR_0(FCommandAccessBot, pClient->iCommandAccessFlags) )
                        m_bHelpingMate = true;
                }
            }
        }

        if ( m_iPrevTalk == -1 ) // This is a request from other player, generate response.
        {
            // We want to know what bot can answer.
            const good::vector<TBotChat>& aPossibleAnswers = CChat::PossibleAnswers(cRequest.iBotChat);
            if ( aPossibleAnswers.size() == 1 )
                cResponse.iBotChat = aPossibleAnswers[0];
            else if ( aPossibleAnswers.size() > 0 )
            {
                bool bAffirmativeNegativeAnswer = good::find(aPossibleAnswers.begin(), aPossibleAnswers.end(), EBotChatAffirm) != aPossibleAnswers.end();
                if ( bAffirmativeNegativeAnswer )
                {
                    bool bYesNoAnswer = good::find(aPossibleAnswers.begin(), aPossibleAnswers.end(), EBotChatAffirmative) != aPossibleAnswers.end();
                    cResponse.iBotChat = bYesNoAnswer ? ( (rand()&1) ? EBotChatAffirmative : EBotChatAffirm ) : EBotChatAffirm;
                    if ( m_bHelpingMate )
                        StartPerformingChatRequest(cRequest);
                    else
                        cResponse.iBotChat += 1; // Negate request (EBotChatAffirmative + 1 = EBotChatNegative).
                }
                else
                    cResponse.iBotChat = aPossibleAnswers[ rand() % aPossibleAnswers.size() ];
            }
        }
        else // This is a response to this bot's request.
        {
            // TODO: this part is not implemented yet.
            switch ( cRequest.iBotChat )
            {
            case EBotChatAffirm:
            case EBotChatAffirmative:

            case EBotChatNegative:
            case EBotChatNegate:
            case EBotChatBusy:
                // Ask another bot?
            default:;
            }
        }

        if ( cRequest.iBotChat == EBotChatBye )
        {
            m_iPrevChatMate = iChatMate;
            m_iPrevTalk = EBotChatBye;
            iChatMate = -1;
        }
    }
    else if ( cRequest.iBotChat == EBotChatBye )
    {
        if ( (m_iPrevTalk != EBotChatBye) || (m_iPrevChatMate != cRequest.iSpeaker) )
            cResponse.iBotChat = EBotChatBye;
    }
    else
        cResponse.iBotChat = EBotChatBusy;

    // Generate chat.
    if ( cResponse.iBotChat != -1 )
    {
        const good::string& sText = CChat::ChatToText(cResponse);
        Say(false, sText.c_str());
    }
}

//----------------------------------------------------------------------------------------------------------------
void CBot::StartPerformingChatRequest( const CBotChat& cRequest )
{
    m_bPerformingRequest = true;
    m_iObjective = cRequest.iBotChat;

    switch ( m_iObjective )
    {
    case EBotChatStop:
        m_bNeedMove = false;
        m_bRequestTimeout = true;
        m_fEndTalkActionTime = CBotrixPlugin::fTime + 30.0f;
        break;
    case EBotChatCome:
    case EBotChatFollow:
    case EBotChatAttack:
    case EBotChatNoKill:
    case EBotChatSitDown:
    case EBotChatStandUp:
    case EBotChatJump:
    case EBotChatLeave:

    default:
        BASSERT(false); // Should not enter.
    }
}

//----------------------------------------------------------------------------------------------------------------
void CBot::EndPerformingChatRequest( bool bSayGoodbye )
{
    m_bPerformingRequest = m_bRequestTimeout = false;
    if ( bSayGoodbye )
    {
        m_cChat.cMap.clear();
        m_cChat.iBotChat = EBotChatBye;
        if ( rand()&1 )
        {
            m_cChat.iDirectedTo = iChatMate;
            m_cChat.cMap.push_back( CChatVarValue(CChat::iPlayerVar, 0, iChatMate) );
        }
        else
            m_cChat.iDirectedTo = -1;

        bool bTeam = ( CPlayers::Get(iChatMate)->GetTeam() == GetTeam() );
        Say( bTeam, CChat::ChatToText(m_cChat).c_str() );
    }

    switch ( m_iObjective )
    {
    case EBotChatStop:
        m_bNeedMove = true;
        break;
    case EBotChatCome:
    case EBotChatFollow:
    case EBotChatAttack:
    case EBotChatNoKill:
    case EBotChatSitDown:
    case EBotChatStandUp:
    case EBotChatJump:
    case EBotChatLeave:

    default:
        BASSERT(false); // Should not enter.
    }
}
#endif // BOTRIX_CHAT

//----------------------------------------------------------------------------------------------------------------
void CBot::PreThink()
{
//#define DRAW_BEAM_TO_0_0_0
#if defined(DEBUG) && defined(DRAW_BEAM_TO_0_0_0)
    static float fBeamTo000 = 0.0f;
    if ( CBotrixPlugin::fTime > fBeamTo000 )
    {
        fBeamTo000 = CBotrixPlugin::fTime + 0.5f;
        CUtil::DrawBeam(GetHead(), CUtil::vZero, 5, 0.6f, 0xff, 0xff, 0xff);
    }
#endif

    if ( m_bAlive && CWaypoints::Size() <= 64 )
    {
        if ( !m_bSaidNoWaypoints )
        {
            m_bSaidNoWaypoints = true;
            Say( false, "Please create more waypoints for me." );
        }
        return;
    }

    Vector vPrevOrigin = m_vHead;
    int iPrevCurrWaypoint = iCurrentWaypoint;

    CPlayer::PreThink(); // Will invalidate current waypoint if away.

	if ( m_bCommandPaused )
		return;

	if ( m_pCurrentEnemy )
	{
		// Erase current enemy if the enemy is protected.
		if ( ( m_pCurrentEnemy->IsProtected() ||
			( CMod::iSpawnProtectionHealth > 0 && m_pCurrentEnemy->GetHealth() >= CMod::iSpawnProtectionHealth ) ) )
			EraseCurrentEnemy();
	}

    if ( CWaypoint::IsValid(iCurrentWaypoint) )
        m_bInvalidWaypointStart = false;
    else if ( m_bAlive && fInvalidWaypointSuicideTime )
    {
        if ( m_bInvalidWaypointStart )
        {
            if ( CBotrixPlugin::fTime >= m_fInvalidWaypointEnd ) // TODO: config.
            {
                BLOG_E( "%s -> Staying away from waypoints too long, suiciding.", GetName() );
                ConsoleCommand("kill");
            }
        }
        else
        {
            m_bInvalidWaypointStart = true;
            m_fInvalidWaypointEnd = CBotrixPlugin::fTime + CBot::fInvalidWaypointSuicideTime;
        }
        return;
    }

    // Reset bot's command.
    m_cCmd.forwardmove = 0;
    m_cCmd.sidemove = 0;
    m_cCmd.upmove = 0;
    m_cCmd.buttons = 0;
    m_cCmd.impulse = 0;

    if ( m_bAlive ) // Update near objects, items, players and current weapon.
        UpdateWorld();

    if ( !m_bTest )
        Think(); // Mod's think.

    if ( m_bAlive )
    {
        PerformMove( iPrevCurrWaypoint, vPrevOrigin );

        if ( m_bNeedMove && m_bUseNavigatorToMove && m_cNavigator.SearchEnded() )
            m_cNavigator.DrawPath(r, g, b, m_vHead);

        // Show near items in white and nearest in red.
        if ( m_bDebugging )
        {
            static const float fDrawNearObjectsTime = 0.1f;
            if ( CBotrixPlugin::fTime > m_fNextDrawNearObjectsTime )
            {
                m_fNextDrawNearObjectsTime = CBotrixPlugin::fTime + fDrawNearObjectsTime;
                for ( TItemType iType=0; iType < EItemTypeCollisionTotal; ++iType)
                {
                    const good::vector<CItem>& aItems = CItems::GetItems(iType);
                    for ( int i=0; i < m_aNearItems[iType].size(); ++i) // Draw near items with white color.
                    {
                        ICollideable* pCollide = aItems[ m_aNearItems[iType][i] ].pEdict->GetCollideable();
                        CUtil::DrawBox(pCollide->GetCollisionOrigin(), pCollide->OBBMins(), pCollide->OBBMaxs(),
                                       fDrawNearObjectsTime, 0xFF, 0xFF, 0xFF, pCollide->GetCollisionAngles());
                    }

                    for ( int i=0; i < m_aNearestItems[iType].size(); ++i) // Draw nearest items with red color.
                    {
                        ICollideable* pCollide = aItems[ m_aNearestItems[iType][i] ].pEdict->GetCollideable();
                        CUtil::DrawBox(pCollide->GetCollisionOrigin(), pCollide->OBBMins(), pCollide->OBBMaxs(),
                                       fDrawNearObjectsTime, 0xFF, 0x00, 0x00, pCollide->GetCollisionAngles());
                    }
                }
            }
        }
    }

    m_pController->RunPlayerMove(&m_cCmd);
#ifdef BOTRIX_SOURCE_ENGINE_2006
    m_pController->PostClientMessagesSent();
#endif

    m_fPrevThinkTime = CBotrixPlugin::fTime;

    // Bot created for testing and couldn't find path or reached destination and finished using health/armor machine.
    if ( m_bTest && ( /*m_bMoveFailure || */( !m_bNeedMove && !m_bUsingButton  && !m_bUsingHealthMachine  && !m_bUsingArmorMachine ) ) )
        CPlayers::KickBot(this);
}







//================================================================================================================
// CBot virtual protected methods.
//================================================================================================================
void CBot::CurrentWaypointJustChanged()
{
    if ( m_bNeedMove && m_bUseNavigatorToMove )
    {
        if ( m_cNavigator.SearchEnded() )
        {
            if ( iCurrentWaypoint == iNextWaypoint ) // Bot becomes closer to next waypoint in path.
            {
                if ( CWaypoint::IsValid(m_iAfterNextWaypoint) )
                {
                    // Set forward look to next waypoint in path.
                    m_vForward = CWaypoints::Get(m_iAfterNextWaypoint).vOrigin;

                     // Don't change look while using actions.
                    if ( !m_bEnemyAim && !m_bPathAim )
                    {
                        m_bNeedAim = true;
                        m_vLook = m_vForward;
                        m_fEndAimTime = CBotrixPlugin::fTime + GetEndLookTime();
                    }
                }
            }
            else if ( CWaypoint::IsValid(iNextWaypoint) ) // Something went wrong (bot falls or pushed?).
            {
                BLOG_W("%s -> Invalid current waypoint %d (should be %d).", GetName(), iCurrentWaypoint, iNextWaypoint);
                m_bMoveFailure = true;
                iCurrentWaypoint = EWaypointIdInvalid;
                m_cNavigator.Stop();
            }
            else
            {
                // Can't touch last waypoint, just stop.
                m_bNeedMove = false;
                m_cNavigator.Stop();
            }
        }
        else
            m_bDestinationChanged = true; // Search not ended, but waypoint changed (?), restart search from current waypoint.
    }
}

//----------------------------------------------------------------------------------------------------------------
bool CBot::DoWaypointAction()
{
    if ( m_bEnemyAim /*|| !m_bNeedMove || !m_bUseNavigatorToMove - bot test fails */ )
        return false;

    BASSERT( CWaypoint::IsValid(iCurrentWaypoint), return false );
    CWaypoint& w = CWaypoints::Get(iCurrentWaypoint);

    // Check if needs to USE.
    if ( m_bAlreadyUsed )
    {
        // When coming back to current waypoint (if stucked) don't use it again, but make this variable false at next waypoint.
		m_bAlreadyUsed = FLAG_SOME_SET( FWaypointButton | FWaypointHealthMachine | FWaypointArmorMachine, w.iFlags );
    }
    else
    {
        // Check if need health/armor.
        if ( FLAG_SOME_SET(FWaypointHealthMachine, w.iFlags) )
        {
            m_iLastHealthArmor = -1;
            m_bNeedUse = m_pPlayerInfo->GetHealth() < m_pPlayerInfo->GetMaxHealth();
            m_bUsingHealthMachine = m_bNeedUse;
			m_bUsingArmorMachine = false;
            m_bUsingButton = false;
		}
        else if ( FLAG_SOME_SET(FWaypointArmorMachine, w.iFlags) )
        {
            m_iLastHealthArmor = -1;
            m_bNeedUse = m_pPlayerInfo->GetArmorValue() < CMod::GetVar( EModVarPlayerMaxArmor );
            m_bUsingHealthMachine = false;
            m_bUsingArmorMachine = m_bNeedUse;
            m_bUsingButton = false;
        }
        else if ( FLAG_SOME_SET( FWaypointUse | FWaypointButton, w.iFlags ) )
		{
            m_bNeedUse = FLAG_SOME_SET( FWaypointUse, w.iFlags );
            if ( !m_bNeedUse )
            {
                // FWaypointUse not set. FWaypointButton is set.
                CWaypointPath* pCurrentPath = CWaypoints::GetPath( iCurrentWaypoint, iNextWaypoint );
				if ( pCurrentPath )
				{
					TItemIndex iDoor = pCurrentPath->GetDoorNumber();
					m_bNeedUse = pCurrentPath && FLAG_SOME_SET( FPathDoor | FPathElevator, pCurrentPath->iFlags ) &&
						iDoor == CWaypoint::GetDoor( w.iArgument ); // Both are for same door or both are not set.
					if ( m_bNeedUse && pCurrentPath->IsDoor() && iDoor != EItemIndexInvalid )
					{
						m_bNeedUse = CItems::IsDoorClosed( iDoor ) != 0; // Only use the button if the door is closed.
					}
				}
            }
			m_bUsingHealthMachine = false;
			m_bUsingArmorMachine = false;
            m_bUsingButton = m_bNeedUse;
		}

        if ( m_bNeedUse )
        {
            QAngle angNeeded;
            CWaypoint::GetFirstAngle(angNeeded, w.iArgument);
            CUtil::NormalizeAngle(angNeeded.x);
            CUtil::NormalizeAngle(angNeeded.y);

            AngleVectors(angNeeded, &m_vForward);
            m_vForward *= 1000.0f;
            m_vForward += m_vHead;
            m_vLook = m_vForward;

            m_fStartActionTime = m_fEndAimTime = CBotrixPlugin::fTime + GetEndLookTime();
            m_fEndActionTime = m_fStartActionTime + m_bUsingHealthMachine || m_bUsingArmorMachine ? m_fTimeIntervalCheckUsingMachines : 0.0f;

            m_bLockNavigatorMove = m_bPathAim = m_bNeedAim = true;
        }
    }

    // To stop, bot must not start from current waypoint.
    //if ( CWaypoint::IsValid(iPrevWaypoint) && (iCurrentWaypoint != iPrevWaypoint) &&
    //     FLAG_SOME_SET(FWaypointStop, CWaypoints::Get(iCurrentWaypoint).iFlags) )
    //    m_bNeedStop = true;

    m_bNeedStop = FLAG_SOME_SET(FWaypointStop, w.iFlags);

    return m_bNeedUse;
}

//----------------------------------------------------------------------------------------------------------------
void CBot::ApplyPathFlags()
{
    BASSERT( m_bNeedMove, return );
    //BotTrace("%s -> Waypoint %d", m_pPlayerInfo->GetName(), iCurrentWaypoint);

    // Release buttons and locks.
    m_bNeedUse = m_bAlreadyUsed = false;
	m_bNeedAttack = m_bNeedAttack2 = false;
	m_bNeedJumpDuck = m_bNeedJump = m_bNeedSprint = m_bNeedDuck = m_bNeedWalk = m_bNeedFlashlight = false;
    m_bLockNavigatorMove = m_bPathAim = false;

    m_bPathAim = false;
    if ( CWaypoint::IsValid(iNextWaypoint) )
    {
        CWaypoint& wNext = CWaypoints::Get(iNextWaypoint);
        m_vDestination = wNext.vOrigin;

        if ( iCurrentWaypoint == iNextWaypoint ) // Happens when bot stucks.
        {
            if ( CWaypoint::IsValid(m_iAfterNextWaypoint) )
                m_vForward = CWaypoints::Get(m_iAfterNextWaypoint).vOrigin;
            else
                m_vForward = wNext.vOrigin;
        }
        else
        {
            m_vForward = wNext.vOrigin;

            CWaypointPath* pCurrentPath = CWaypoints::GetPath(iCurrentWaypoint, iNextWaypoint);
            if ( !pCurrentPath ) 
                return; // TODO: check why it is happening sometimes?

            m_bLadderMove = FLAG_ALL_SET(FPathLadder, pCurrentPath->iFlags);

            if ( FLAG_ALL_SET(FPathStop, pCurrentPath->iFlags) )
                m_bNeedStop = true;

			// Door in the middle that is not locked, may need to USE to open it.
            if ( pCurrentPath->IsDoor() && !pCurrentPath->HasButtonNumber() )
            {
                TItemIndex iDoor = pCurrentPath->GetDoorNumber();
                m_bNeedUse = iDoor != EItemIndexInvalid && CItems::IsDoorClosed( iDoor );
            }

			if ( FLAG_ALL_SET(FPathSprint, pCurrentPath->iFlags) )
                m_bNeedSprint = true;

            if ( FLAG_ALL_SET(FPathFlashlight, pCurrentPath->iFlags) )
                m_bNeedFlashlight = true;

            if ( FLAG_ALL_SET(FPathCrouch, pCurrentPath->iFlags) &&
                !FLAG_ALL_SET(FPathJump, pCurrentPath->iFlags) )
                m_bNeedDuck = true; // Crouch only when not jumping.

            // Dont use path aim if aim is locked.
			m_bPathAim = !m_bEnemyAim && FLAG_SOME_SET(FPathDoor | FPathJump | FPathBreak | FPathSprint | FPathLadder | FPathStop, pCurrentPath->iFlags);
        }
    }

    if ( m_bPathAim )
    {
        m_bNeedAim = true;
        m_vLook = m_vForward; // Always look to next waypoint when aim is locked.
        m_fEndAimTime = CBotrixPlugin::fTime + GetEndLookTime();
    }
}

//----------------------------------------------------------------------------------------------------------------
void CBot::DoPathAction()
{
    BASSERT( m_bNeedMove, return );
    BASSERT( CWaypoint::IsValid( iCurrentWaypoint ), return );

    if ( CWaypoint::IsValid(iNextWaypoint) && (iCurrentWaypoint != iNextWaypoint) )
    {
        CWaypointPath* pCurrentPath = CWaypoints::GetPath(iCurrentWaypoint, iNextWaypoint);
        BASSERT( pCurrentPath, return );

        if ( FLAG_SOME_SET(FPathBreak, pCurrentPath->iFlags) )
            m_bNeedAttack = true;

        if ( FLAG_SOME_SET(FPathJump | FPathTotem, pCurrentPath->iFlags) )
            m_bNeedJump = true;

        if ( FLAG_SOME_SET(FPathCrouch | FPathJump, pCurrentPath->iFlags) || FLAG_SOME_SET(FPathTotem, pCurrentPath->iFlags) )
            m_bNeedJumpDuck = true;

        if ( m_bNeedAttack || m_bNeedJump || m_bNeedJumpDuck )
        {
            int iStartTime = pCurrentPath->ActionTime(); // Action (jump/ jump with duck / attack) start time in deciseconds.
			int iDuration = pCurrentPath->ActionDuration();  // Action duration (duck for jump / attack for break) in deciseconds.
			if ( iDuration == 0 )
				iDuration = 10; // Duration 1 second by default. Good for either duck while jumping or attack (to break something).

			m_fStartActionTime = CBotrixPlugin::fTime + ( iStartTime / 10.0f );
			m_fEndActionTime = m_fStartActionTime + iDuration / 10.0f;
        }
    }

    m_bRepeatWaypointAction = false;
}

//----------------------------------------------------------------------------------------------------------------
void CBot::PickItem( const CItem& cItem, TItemType iEntityType, TItemIndex iIndex )
{
    switch ( iEntityType )
    {
    case EItemTypeHealth:
		BotDebug("%s -> Picked %s. Health now %d.", GetName(), cItem.pItemClass->sClassName.c_str(), m_pPlayerInfo->GetHealth());
        break;
    case EItemTypeArmor:
		BotDebug("%s -> Picked %s. Armor now %d.", GetName(), cItem.pItemClass->sClassName.c_str(), m_pPlayerInfo->GetArmorValue());
        break;
    case EItemTypeWeapon:
        if ( m_bFeatureWeaponCheck )
        {
            TWeaponId iWeapon = CWeapons::AddWeapon(cItem.pItemClass, m_aWeapons);
            if ( CWeapons::IsValid(iWeapon) )
            {
                CWeaponWithAmmo& cWeapon = m_aWeapons[iWeapon];
				BotDebug( "%s -> Picked weapon %s (%d/%d, %d/%d).", GetName(), cItem.pItemClass->sClassName.c_str(),
                            cWeapon.Bullets(CWeapon::PRIMARY), cWeapon.ExtraBullets(CWeapon::PRIMARY),
                            cWeapon.Bullets(CWeapon::SECONDARY), cWeapon.ExtraBullets(CWeapon::SECONDARY) );
                WeaponChoose();
            }
            else if ( CMod::aClassNames.size() )
                BLOG_W( "%s -> Picked weapon %s, but there is no such weapon for class %s.", GetName(),
                        cItem.pItemClass->sClassName.c_str(), CTypeToString::ClassToString(m_iClass).c_str() );
            else
                BLOG_W( "%s -> Picked weapon %s, but there is no such weapon.", GetName(), cItem.pItemClass->sClassName.c_str() );
        }
        break;
    case EItemTypeAmmo:
        if ( m_bFeatureWeaponCheck )
        {
            if ( CWeapons::AddAmmo(cItem.pItemClass, m_aWeapons) )
            {
				BotDebug( "%s -> Picked ammo %s.", GetName(), cItem.pItemClass->sClassName.c_str() );
                WeaponChoose();
            }
            else
                BLOG_W("%s -> Picked ammo %s, but bot doesn't have that weapon.", GetName(), cItem.pItemClass->sClassName.c_str() );
        }
        break;
    case EItemTypeObject:
		BotDebug("%s -> Breaked object %s", GetName(), cItem.pItemClass->sClassName.c_str());
        break;
    default:
        BASSERT(false);
    }

    if ( iEntityType != EItemTypeObject )
    {
        CPickedItem cPickedItem( iEntityType, iIndex, CBotrixPlugin::fTime );

        // If item is not respawnable (or just bad configuration), force to not to search for it again right away, but in 1 minute at least.
        // TODO: check if item is respawnable.
        cPickedItem.fRemoveTime += /*FLAG_ALL_SET_OR_0(FEntityRespawnable, cItem.iFlags) ? cItem.pItemClass->GetArgument() : */60.0f;
        m_aPickedItems.push_back( cPickedItem );
    }
}




//================================================================================================================
// CBot protected methods.
//================================================================================================================
#ifdef BOTRIX_CHAT
void CBot::Speak( bool bTeamSay )
{
    TPlayerIndex iPlayerIndex = m_cChat.iDirectedTo;
    if ( iPlayerIndex == EPlayerIndexInvalid )
        iPlayerIndex = m_iPrevChatMate;
    if ( iPlayerIndex != EPlayerIndexInvalid )
        m_cChat.cMap.push_back( CChatVarValue(CChat::iPlayerVar, 0, iPlayerIndex) );
    const good::string& sText = CChat::ChatToText(m_cChat);
    BLOG_D( "%s: %s %s", GetName(), bTeamSay? "say_team" : "say", sText.c_str() );
    Say( bTeamSay, sText.c_str() );
}
#else
void CBot::Speak( bool ) {}
#endif


//----------------------------------------------------------------------------------------------------------------
bool CBot::IsVisible( CPlayer* pPlayer, bool bViewCone ) const
{
    // Check PVS first. Get visible clusters from player's position.
    Vector vAim(pPlayer->GetHead());

    // First check if other player is in bot's view cone.
    static const float fFovHorizontal = 70.0f;              // Giving 140 degree of view horizontally.
    static const float fFovVertical = fFovHorizontal * 3/4; // Normal monitor has 4:3 aspect ratio.

    if ( bViewCone ) // Check view cone.
    {
        vAim -= m_vHead; // vAim contains vector to enemy relative from bot.

        QAngle angPlayer;
        VectorAngles(vAim, angPlayer);

        CUtil::GetAngleDifference(angPlayer, m_cCmd.viewangles, angPlayer);
        bViewCone = ( (-fFovHorizontal <= angPlayer.x) && (angPlayer.x <= fFovHorizontal) &&
                      (-fFovVertical <= angPlayer.y) && (angPlayer.y <= fFovVertical) );

    }
    else
        bViewCone = true; // Assume enemy is in view cone.

    // CUtil::IsVisible( m_vHead, vAim, FVisibilityAll );
    return bViewCone ? CUtil::IsVisible( m_vHead, pPlayer->GetEdict() ) : false;
}


//----------------------------------------------------------------------------------------------------------------
float CBot::GetEndLookTime()
{
    // angle 180 degrees = aAimSpeed time   ->   Y time = angle X * aAimSpeed / 180 degrees
    // angle X           = Y time
    //static const float aAimSpeed[EBotIntelligenceTotal] = { 1.20f, 0.85f, 0.67f, 0.57f, 1.42f };
    static const int iAngDiff = 40; // 30 degrees to make time difference in bot's aim.
    static const int iEndAimSize = 180/iAngDiff + 1;
    static const float aEndAimTime[EBotIntelligenceTotal][iEndAimSize] =
    {
        //  40    80     120    160    180
        { 0.40f, 0.55f, 0.70f, 0.85f, 1.00f },
        { 0.30f, 0.42f, 0.54f, 0.66f, 0.80f },
        { 0.20f, 0.30f, 0.40f, 0.50f, 0.60f },
        { 0.15f, 0.20f, 0.25f, 0.30f, 0.35f },
        { 0.10f, 0.10f, 0.15f, 0.20f, 0.25f },
    };

    Vector vDestinationAim( m_vLook );
    vDestinationAim -= m_vHead; // Get abs vector.

    QAngle angNeeded;
    VectorAngles(vDestinationAim, angNeeded);

    CUtil::GetAngleDifference(m_cCmd.viewangles, angNeeded, angNeeded);

    int iPitch = abs( (int)angNeeded.x );
    int iYaw = abs( (int)angNeeded.y );

    iPitch /= iAngDiff;
    iYaw /= iAngDiff;

    BASSERT( (iPitch <= iEndAimSize) && (iYaw <= iEndAimSize), return 0.0f );

    if ( iPitch < iYaw)
        iPitch = iYaw; // iPitch = MAX2( iPitch, iYaw );

    float fAimTime = aEndAimTime[m_iIntelligence][iPitch];
    BASSERT( fAimTime < 2.0f, return 2.0f );

    return fAimTime;
    //return CBotrixPlugin::fTime + iPitch * aAimSpeed[m_iIntelligence] / 180.0f;
}


//----------------------------------------------------------------------------------------------------------------
void CBot::WeaponCheckCurrent( bool bAddToBotWeapons )
{
    // Check weapon bot has in hands.
    const char* szCurrentWeapon = m_pPlayerInfo->GetWeaponName();
    if ( !szCurrentWeapon )
        return;

    GoodAssert( WeaponSearch(szCurrentWeapon) == EWeaponIdInvalid );

    good::string sCurrentWeapon( szCurrentWeapon );
    TWeaponId iId = CWeapons::GetIdFromWeaponName( sCurrentWeapon );
    if ( iId == EWeaponIdInvalid )
    {
        // Add weapon class first.
        BLOG_W( "%s -> Adding new weapon class %s.", GetName(), szCurrentWeapon );
        CItemClass cWeaponClass;
        cWeaponClass.fPickupDistanceSqr = CMod::iPlayerRadius << 4; // 4*player's radius.
        cWeaponClass.fPickupDistanceSqr *= cWeaponClass.fPickupDistanceSqr;
        // Don't set engine name so mod will think that there is no such weapon in this map.
        //cWeaponClass.szEngineName = szCurrentWeapon;
        cWeaponClass.sClassName = szCurrentWeapon;
        const CItemClass* pClass = CItems::AddItemClassFor( EItemTypeWeapon, cWeaponClass );

        // Add new weapon to default weapons.
        BLOG_W( "%s -> Adding new weapon %s, %s.", GetName(), szCurrentWeapon,
                bAssumeUnknownWeaponManual ? "melee" : "ranged" );
        CWeapon* pNewWeapon = new CWeapon();
        pNewWeapon->pWeaponClass = pClass;

        // Make it usable by all classes and teams.
        pNewWeapon->iClass = -1;
        pNewWeapon->iTeam = -1;
        pNewWeapon->fDamage[0] = 0.01; // DamagePerSecond() will be low to not select unknown weapons by default.

        // Make it has infinite ammo.
        pNewWeapon->iAttackBullets[CWeapon::PRIMARY] = 0;

        if ( bAssumeUnknownWeaponManual )
        {
            pNewWeapon->iType = EWeaponMelee;
            pNewWeapon->fShotTime[0] = 0.2f; // Manual weapon: 5 times in a second.
        }
        else
        {
            pNewWeapon->iType = EWeaponRifle;
            pNewWeapon->iClipSize[CWeapon::PRIMARY] = 1;
            pNewWeapon->iDefaultAmmo[CWeapon::PRIMARY] = 1;
            pNewWeapon->fShotTime[0] = 0.01f; // This will make bot always press attack button.
        }
        CWeaponWithAmmo cNewWeapon(pNewWeapon);
        iId = CWeapons::Add(cNewWeapon);
    }

    if ( bAddToBotWeapons )
    {
        const CWeaponWithAmmo& cNewWeapon = *CWeapons::Get(iId);
        m_aWeapons.push_back( cNewWeapon );
        iId = m_aWeapons.size()-1;
        m_aWeapons[iId].AddWeapon();

        if ( !CWeapons::IsValid(m_iMeleeWeapon) && cNewWeapon.IsMelee() )
            m_iMeleeWeapon = iId;
        else if ( !CWeapons::IsValid(m_iPhyscannon) && cNewWeapon.IsPhysics() )
            m_iPhyscannon = iId;
        else if ( !CWeapons::IsValid(m_iBestWeapon) && cNewWeapon.IsRanged() )
            m_iBestWeapon = iId;

        ChangeWeapon(iId); // As if just switching to this weapon.
    }
}


//----------------------------------------------------------------------------------------------------------------
void CBot::WeaponsScan()
{
    GoodAssert( m_bFeatureWeaponCheck );
	BotDebug( "%s -> Scan weapons.", GetName() );

    // Check if bot has physcannon / melee weapon.
    m_iPhyscannon = m_iMeleeWeapon = -1;
    for ( int i=0; i < m_aWeapons.size(); ++i)
    {
        bool bPresent = WeaponSet( m_aWeapons[i].GetName() );
        if ( bPresent )
        {
            m_aWeapons[i].AddWeapon();
            if ( m_aWeapons[i].IsPhysics() )
                m_iPhyscannon = i;
            else if ( m_aWeapons[i].IsMelee() )
                m_iMeleeWeapon = i;
        }
    }

    // Set bot's best weapon.
    m_iWeapon = CWeapons::GetBestWeapon(m_aWeapons);
    if ( !CWeapons::IsValid(m_iWeapon) )
        m_iWeapon = m_iMeleeWeapon; // Get melee weapon.

    m_iBestWeapon = m_iWeapon;
    if ( CWeapons::IsValid(m_iWeapon) )
        ChangeWeapon( m_iWeapon );
    else
        BLOG_W( "%s -> No weapons available.", GetName() );
}


//----------------------------------------------------------------------------------------------------------------
void CBot::UpdateWeapon()
{
    if ( !m_bFeatureWeaponCheck )
        return;

    const char *szCurrentWeapon = m_pPlayerInfo->GetWeaponName();
    if ( !szCurrentWeapon )
    {
        m_iWeapon = EWeaponIdInvalid;
        return;
    }

    if ( !CWeapons::IsValid(m_iWeapon) || (m_aWeapons[m_iWeapon].GetName() != szCurrentWeapon) )
    {
        // Happens when out of bullets automatically.
        if ( CWeapons::IsValid(m_iWeapon) )
            BLOG_W( "%s -> Current weapon is %s, should be %s.", GetName(),
                    szCurrentWeapon, m_aWeapons[m_iWeapon].GetName().c_str() );
        else
            BLOG_W( "%s -> Current weapon is %s.", GetName(), szCurrentWeapon );

        TWeaponId iCurrentWeapon = WeaponSearch(szCurrentWeapon);
        if ( iCurrentWeapon == EWeaponIdInvalid )
        {
            WeaponCheckCurrent( true );
        }
        else
        {
            if ( CWeapons::IsValid(m_iWeapon) )
            {
                if ( m_aWeapons[m_iWeapon].IsMelee() || m_aWeapons[m_iWeapon].IsPhysics() )
                    m_aWeapons[m_iWeapon].SetPresent(false);
                else
                    m_aWeapons[m_iWeapon].SetEmpty();
            }
            ChangeWeapon(iCurrentWeapon); // As if just switching to this weapon.
        }
    }
    else
    {
        CWeaponWithAmmo& cWeapon = m_aWeapons[m_iWeapon];
        cWeapon.GameFrame(m_cCmd.buttons);
        if ( m_bDontAttack || !m_bCommandAttack )
            m_cCmd.buttons = 0;

        if ( cWeapon.CanUse() && ( cWeapon.GetBaseWeapon()->bForbidden || cWeapon.Empty() ) )
            WeaponChoose(); // Select other weapon.
    }
}


//----------------------------------------------------------------------------------------------------------------
void CBot::UpdateWorld()
{
    // Update picked items.
    if ( m_aPickedItems.size() )
    {
        if ( CBotrixPlugin::fTime >= m_aPickedItems[m_iCurrentPickedItem].fRemoveTime )
            m_aPickedItems.erase(m_aPickedItems.begin() + m_iCurrentPickedItem);
        else
            ++m_iCurrentPickedItem;
        if ( m_iCurrentPickedItem >= m_aPickedItems.size() )
            m_iCurrentPickedItem = 0;
    }

    // Update bot's weapon.
    UpdateWeapon();

    // Get near items.
    Vector vFoot = m_pController->GetLocalOrigin();
    for ( TItemType iType=0; iType < EItemTypeCollisionTotal; ++iType )
    {
        const good::vector<CItem>& aItems = CItems::GetItems(iType);
        if ( aItems.size() == 0)
            continue;

        good::vector<TItemIndex>& aNearest = m_aNearestItems[iType];
        int iNearestSize = aNearest.size();

        good::vector<TItemIndex>& aNear = m_aNearItems[iType];
        int iNearSize = aNear.size();

        // Update nearest items.
        for ( int i = 0; i < iNearestSize; )
        {
			int index = aNearest[i];
			const CItem* cItem = index < aItems.size() ? &aItems[index] : NULL;
            if (cItem == NULL || cItem->IsFree()) // Remove object if it is removed from game.
            {
                aNearest.erase(aNearest.begin() + i);
                --iNearestSize;
            }
			else if (!cItem->IsOnMap()) // Was on map before, but disappeared, bot could grab it or break it.
            {
                PickItem( *cItem, iType, aNearest[i] );
                aNearest.erase(aNearest.begin() + i);
                --iNearestSize;
            }
			else if (vFoot.DistToSqr(cItem->CurrentPosition()) > cItem->fPickupDistanceSqr) // Item becomes far.
            {
                aNear.push_back(aNearest[i]);
                aNearest.erase(aNearest.begin() + i);
                --iNearestSize;
            }
            else
                 ++i;
        }

        // Check if bot becomes too close to near items, to pass it to nearest items (and viceversa).
        for ( int i = 0; i < iNearSize; )
        {
			int index = aNear[i];
			const CItem* cItem = index < aItems.size() ? &aItems[index] : NULL;
			if (cItem == NULL || cItem->IsFree() || !cItem->IsOnMap())
            {
                aNear.erase(aNear.begin() + i);
                --iNearSize;
            }
            else
            {
				float fDistSqr = vFoot.DistToSqr(cItem->CurrentPosition());

                if ( CMod::iNearItemMaxDistanceSqr < fDistSqr ) // Item becomes far.
                {
                    aNear.erase(aNear.begin() + i);
                    --iNearSize;
                }
                else
                {
					if (fDistSqr <= cItem->fPickupDistanceSqr) // Can pick up.
                    {
                        aNearest.push_back(aNear[i]);
                        aNear.erase(aNear.begin() + i);
                        --iNearSize;
                    }
                    else
                        ++i;
                }
            }
        }

        // Check if bot becomes close to items to consider them near (m_iCheckEntitiesPerFrame items max).
        int iCheckTo = m_iNextNearItem[iType] + m_iCheckEntitiesPerFrame;
        if ( iCheckTo > aItems.size() )
            iCheckTo = aItems.size();

        for ( int i = m_iNextNearItem[iType]; i < iCheckTo; ++i )
        {
            const CItem* pItem = &aItems[i];

            if (   pItem->IsFree() || !pItem->IsOnMap() ||                           // Item is picked or broken.
                 ( find( aNear.begin(), aNear.end(), i ) != aNear.end() ) ||         // Item is near, all checks were already made before for all near items.
                 ( find( aNearest.begin(), aNearest.end(), i ) != aNearest.end() ) ) // Item is nearest, all checks were already made before for all nearest items.
                continue;

            float fDistSqr = vFoot.DistToSqr( pItem->CurrentPosition() );
            if ( fDistSqr <= pItem->fPickupDistanceSqr )
                aNearest.push_back(i);
            else if ( fDistSqr <= CMod::iNearItemMaxDistanceSqr ) // Item is close.
                aNear.push_back(i);
        }
        m_iNextNearItem[iType] = ( iCheckTo == aItems.size() ) ? 0 : iCheckTo;
    }

    // Check only 1 player per frame.
    if ( m_bEnemyOffSight && (CBotrixPlugin::fTime >= m_fTimeToEraseEnemy) )
        CurrentEnemyNotVisible();
    
    CPlayer* pCheckPlayer = NULL;
    while ( m_iNextCheckPlayer < CPlayers::Size() )
    {
        CPlayer* pPlayer = CPlayers::Get(m_iNextCheckPlayer);
        if ( pPlayer && (this != pPlayer) )
        {
            pCheckPlayer = pPlayer;
            break;
        }
        m_iNextCheckPlayer++;
    }

    if ( pCheckPlayer )
    {
        if ( pCheckPlayer->IsAlive() )
        {
            float fDistSqr = m_vHead.DistToSqr( pCheckPlayer->GetHead() );
            if ( fDistSqr <= CMod::iNearItemMaxDistanceSqr )
            {
                m_aNearPlayers.set(m_iNextCheckPlayer);

                // Check if players are not stucked with each other.
                if ( m_bStuck && !m_bStuckTryingSide && ( fDistSqr <= (SQR(CMod::iPlayerRadius) << 2) ) )
                {
                    Vector vNeeded(m_vDestination), vOther( pCheckPlayer->GetHead() );
                    vNeeded -= m_vHead;
                    vOther -= m_vHead;

                    QAngle angNeeded, angOther;
                    VectorAngles(vNeeded, angNeeded);
                    VectorAngles(vOther, angOther);

                    float fYaw = angNeeded.y - angOther.y;
                    CUtil::DeNormalizeAngle(fYaw);

                    if ( (-45.0f < fYaw) && (fYaw < 45.0f) )
                    {
                        // Player stucked with this one (move right for 1/4 seconds).
						m_bResolvingStuck = true;
                        m_bStuckTryingSide = true;
                        m_bStuckTryGoLeft = false;
                        m_fEndActionTime = CBotrixPlugin::fTime + 0.25f;
                    }
                }
            }
            else
                m_aNearPlayers.reset(m_iNextCheckPlayer);
        }
        else
        {
            m_aNearPlayers.reset(m_iNextCheckPlayer);
            if ( m_pCurrentEnemy == pCheckPlayer )
                EraseCurrentEnemy();
        }

        // Check if this enemy can be seen / should be attacked.
        if ( !m_bTest && !m_bDontAttack && IsEnemy(pCheckPlayer) )
            CheckEnemy(m_iNextCheckPlayer, pCheckPlayer, true);
    }

    m_iNextCheckPlayer++;
    if ( m_iNextCheckPlayer >= CPlayers::Size() )
        m_iNextCheckPlayer = 0;
}


//----------------------------------------------------------------------------------------------------------------
void CBot::CheckEnemy( int iPlayerIndex, CPlayer* pPlayer, bool bCheckVisibility )
{
    BASSERT( !m_bDontAttack && (m_pCurrentEnemy != this), return );

    // Assume that current enemy is in view cone.
    bool bIsDifferentEnemy = ( m_pCurrentEnemy != pPlayer );
    bool bEnemyChanged = false;

    if ( pPlayer->IsAlive() && ( !bCheckVisibility || IsVisible(pPlayer, bIsDifferentEnemy) ) )
    {
        // Currently seeing this player.
        m_aSeenEnemies.set(iPlayerIndex);

        float fDistanceSqr = m_vHead.DistToSqr( pPlayer->GetHead() );

        // Add 128 units to not to change enemy too often. TODO: strategy parameter.
        bEnemyChanged = ( m_pCurrentEnemy == NULL ) || ( bIsDifferentEnemy && (fDistanceSqr < m_fDistanceSqrToEnemy + 16384) );
        if ( bEnemyChanged || (m_pCurrentEnemy == pPlayer) ) // Update distance.
        {
            m_bEnemyOffSight = false;
            m_pCurrentEnemy = pPlayer;
            m_fDistanceSqrToEnemy = fDistanceSqr;
        }
    }
    else // Can't see this player anymore or player is dead.
    {
        m_aSeenEnemies.reset(iPlayerIndex);
        if ( m_pCurrentEnemy == pPlayer )
        {
            if ( pPlayer->IsAlive() )
            {
                if ( !m_bEnemyOffSight )
                {
                    m_bEnemyOffSight = true;
                    m_fTimeToEraseEnemy = CBotrixPlugin::fTime + 1.5f; // TODO: CONCOMMAND. Give some time to erase enemy.
                    m_bAttackDuck = false;
                }
            }
            else
                EraseCurrentEnemy();
        }
    }

    if ( bEnemyChanged )
    {
        m_bEnemyAimed = m_bEnemyOffSight = false; // Still need to aim at enemy before shooting.
        if ( !m_bDontAttack )
            EnemyAim();
    }

    if ( m_bFeatureAttackDuckEnabled )
        CheckAttackDuck(pPlayer);
}

//----------------------------------------------------------------------------------------------------------------
void CBot::CheckAttackDuck( CPlayer* pPlayer )
{
    GoodAssert( m_bFeatureAttackDuckEnabled && !m_bDontAttack );

    // Don't duck if using melee weapon or too far away.
    if ( !CWeapons::IsValid(m_iWeapon) || m_aWeapons[m_iWeapon].IsMelee() || !m_aWeapons[m_iWeapon].CanBeUsed(m_fDistanceSqrToEnemy) )
    {
        m_bAttackDuck = false;
        return;
    }

    if ( m_pCurrentEnemy == pPlayer ) // Check if need to duck to attack.
    {
        bool bInRangeDuck = (m_cAttackDuckRangeSqr.first <= m_fDistanceSqrToEnemy) && (m_fDistanceSqrToEnemy <= m_cAttackDuckRangeSqr.second);
        if ( !m_bNeedDuck && !m_bAttackDuck & bInRangeDuck ) // Duck only if not ducking already.
        {
            Vector vSrc(m_vHead);
            vSrc.z -= CMod::GetVar( EModVarPlayerEye ) - CMod::GetVar( EModVarPlayerEyeCrouched );
            m_bAttackDuck = CUtil::IsVisible( vSrc, m_pCurrentEnemy->GetHead(), EVisibilityBots ); // Duck, if enemy is visible while ducking.
        }
        else
            m_bAttackDuck &= bInRangeDuck; // Stop ducking if enemy is far.
    }

    m_bAttackDuck = m_bAttackDuck && !m_bFlee; // Don't duck if fleeing.
}

//----------------------------------------------------------------------------------------------------------------
void CBot::EnemyAim()
{
    GoodAssert( m_pCurrentEnemy && !m_bDontAttack );

    if ( m_bStuckUsePhyscannon || m_bStuckBreakObject )
        return;

    m_vLook = m_pCurrentEnemy->GetHead();
    if ( CWeapons::IsValid(m_iWeapon) )
    {
        CWeaponWithAmmo& cWeapon = m_aWeapons[m_iWeapon];
        for ( int i=CWeapon::SECONDARY; i >= CWeapon::PRIMARY; --i ) // Prefer secondary.
        {
            if ( cWeapon.HasAmmoInClip(i) && cWeapon.IsDistanceSafe(m_fDistanceSqrToEnemy, i) )
            {
                m_aWeapons[m_iWeapon].GetLook( GetHead(), m_pCurrentEnemy, m_fDistanceSqrToEnemy,
                                               m_iIntelligence, i, m_vLook);
                break;
            }
        }
    }
    else
        m_pCurrentEnemy->GetCenter(m_vLook);

    if ( m_iIntelligence < EBotPro )
    {
        // Smart: -4..+4, normal -8..+8, stupied -12..+12, fool -16..+16.
        int iError = (EBotPro - m_iIntelligence) * 4;
        m_vLook.x += iError - (rand() % (iError<<1));
        m_vLook.y += iError - (rand() % (iError<<1));
        m_vLook.z += iError - (rand() % (iError<<1));
    }

    m_fEndAimTime = GetEndLookTime();

    // Make sure to look far away.
    //m_vLook -= m_vHead;
    //m_vLook *= 1000.0f;
    //m_vLook += m_vHead;

    // Take player's speed into account.
    if ( m_iIntelligence >= EBotNormal )
    {
        Vector vInc( m_pCurrentEnemy->GetHead() );
        vInc -= m_pCurrentEnemy->GetPreviousHead();

        float fFramesLeft = m_fEndAimTime * CBotrixPlugin::iFPS; // How many frames left to aim?
        vInc *= fFramesLeft;

        m_vLook += vInc;
    }

    m_fEndAimTime += CBotrixPlugin::fTime;
    m_bNeedAim = m_bEnemyAim = true;
}


//----------------------------------------------------------------------------------------------------------------
void CBot::WeaponChoose()
{
    if ( m_bStuckBreakObject || m_bStuckUsePhyscannon )
        return;

    GoodAssert( CWeapons::IsValid(m_iWeapon) );
    CWeaponWithAmmo& cWeapon = m_aWeapons[m_iWeapon];

    if ( !cWeapon.CanUse() || ( m_pCurrentEnemy &&
         ( cWeapon.CanShoot(CWeapon::PRIMARY, m_fDistanceSqrToEnemy) ||
           cWeapon.CanShoot(CWeapon::SECONDARY, m_fDistanceSqrToEnemy) ) ) )
        return; // Don't change weapon if enemy is close... TODO: sometimes using melee and not changing.

    // If not engaging enemy, reload some weapons. Here cWeapon.CanUse() is true.
    if ( (m_pCurrentEnemy == NULL) && m_bNeedReload )
    {
        if ( cWeapon.IsReloading() )
            return;

        if ( cWeapon.NeedReload(0) )
        {
            WeaponReload();
            return;
        }

        TWeaponId iIdx = EWeaponIdInvalid;
        for ( int i = 0; i < m_aWeapons.size(); ++i )
            if ( m_aWeapons[i].IsPresent() && m_aWeapons[i].NeedReload(CWeapon::PRIMARY) )
            {
                iIdx = i;
                break;
            }

        if ( iIdx == EWeaponIdInvalid )
            m_bNeedReload = false; // Continue to select best weapon.
        else
        {
            GoodAssert( iIdx != m_iWeapon );
            BotDebug( "%s -> Change weapon to reload %s.", GetName(),
                      m_aWeapons[iIdx].GetName().c_str() );
            ChangeWeapon(iIdx);
            return;
        }
    }

    // Choose best ranged weapon.
    m_iBestWeapon = CWeapons::GetBestWeapon(m_aWeapons);

    // Choose melee weapon.
    if ( !CWeapons::IsValid(m_iBestWeapon) && CWeapons::IsValid(m_iMeleeWeapon) )
    {
        if ( m_aWeapons[m_iMeleeWeapon].IsPresent() )
            m_iBestWeapon = m_iMeleeWeapon;
        else
            m_iMeleeWeapon = EWeaponIdInvalid;
    }

    if ( m_iBestWeapon == m_iWeapon )
    {
        if ( !m_aWeapons[m_iWeapon].HasAmmoInClip(0) )
            m_bStayReloading = true;
    }
    else if ( CWeapons::IsValid(m_iBestWeapon) )
    {
        GoodAssert( m_aWeapons[m_iBestWeapon].IsPresent() );
        BotDebug( "%s -> Set best weapon %s.", GetName(),
                  m_aWeapons[m_iBestWeapon].GetName().c_str() );
        ChangeWeapon(m_iBestWeapon);
    }
    else
        m_iBestWeapon = m_iWeapon;

    m_bNeedSetWeapon = false;
}


//----------------------------------------------------------------------------------------------------------------
bool CBot::WeaponSet( const good::string& sWeapon )
{
    GoodAssert( m_bFeatureWeaponCheck );

    // This will create new weapon to the bot. It is not what we need.
    // m_pController->WeaponSet(sWeapon.c_str());
    good::string_buffer sb(szMainBuffer, iMainBufferSize, false);
    sb << "use " << sWeapon;
    CBotrixPlugin::pServerPluginHelpers->ClientCommand( m_pEdict, sb.c_str() );
    const char* szWeapon = m_pPlayerInfo->GetWeaponName();
    bool bOk = ( szWeapon && (sWeapon == szWeapon) );
	BotDebug( "%s -> Set active weapon %s: %s.", GetName(), sWeapon.c_str(), bOk ? "ok" : "error" );
    return bOk;
}


//----------------------------------------------------------------------------------------------------------------
void CBot::ChangeWeapon( TWeaponId iIndex )
{
    //GoodAssert( iIndex != m_iWeapon ); // This can happen when out of bullets, and autoswitch is made to other weapon.
    GoodAssert( m_bFeatureWeaponCheck && CWeapons::IsValid(iIndex) );

    CWeaponWithAmmo* pOld = NULL;
    if ( CWeapons::IsValid(m_iWeapon) )
        pOld = &m_aWeapons[m_iWeapon];

    CWeaponWithAmmo& cNew = m_aWeapons[iIndex];
    // GoodAssert( cNew.IsPresent() ); // Happens when out of bullets & forbidden.

    const good::string& sWeaponName = cNew.GetName();
    if ( WeaponSet(sWeaponName) )
    {
        CWeaponWithAmmo::Holster( pOld, cNew );
        m_iWeapon = iIndex;
    }
    else if ( m_pPlayerInfo->GetWeaponName() )
    {
        if ( cNew.IsMelee() )
        {
            BLOG_W( "%s -> Could not set weapon %s, not present?", GetName(), sWeaponName.c_str() );
            cNew.SetPresent(false);
            if ( m_iMeleeWeapon == iIndex )
                m_iMeleeWeapon = EWeaponIdInvalid;
            if ( m_iPhyscannon == iIndex )
                m_iPhyscannon = EWeaponIdInvalid;
            if ( m_iBestWeapon == iIndex )
                m_iBestWeapon = EWeaponIdInvalid;
        }
        else
        {
            BLOG_W( "%s -> Could not set weapon %s, no bullets?", GetName(), sWeaponName.c_str() );
            cNew.SetEmpty();
        }
    }
    else
        BLOG_W( "%s -> current weapon is null.", GetName() );
}

//----------------------------------------------------------------------------------------------------------------
void CBot::WeaponShoot( int iSecondary )
{
    if ( !m_bStuckBreakObject && !m_bStuckUsePhyscannon && !m_bNeedAttack && (m_bDontAttack || !m_bCommandAttack) )
        return;

    if ( m_bFeatureWeaponCheck )
    {
        GoodAssert( CWeapons::IsValid(m_iWeapon) );
        CWeaponWithAmmo& cWeapon = m_aWeapons[m_iWeapon];
        GoodAssert( cWeapon.CanUse() );

        BotDebug( "%s -> Shoot %s %s, ammo %d/%d.", GetName(), (iSecondary) ? "secondary" : "primary",
                  cWeapon.GetName().c_str(), cWeapon.Bullets(iSecondary), cWeapon.ExtraBullets(iSecondary) );

        cWeapon.Shoot(iSecondary);
        m_bNeedReload = cWeapon.IsRanged();
    }

    FLAG_SET(iSecondary ? IN_ATTACK2 : IN_ATTACK, m_cCmd.buttons);
}


//----------------------------------------------------------------------------------------------------------------
void CBot::CheckSideLook( bool bIsMoving, bool /*bNewDestination*/ )
{
    if ( m_pCurrentEnemy || !bIsMoving )
        return;

    /*if ( m_bUseSideLook && !m_bPathAim )
    {
        // Check if need to change look forward/backward/left/right while moving.
        bool bIsTime = CBotrixPlugin::fTime >= m_fRandomSideLookTime;

        // Bot needs to change look when it is moving and:
        //  - either it is time to change side look.
        //  - either waypoint is reached while looking forward.
        if ( bIsTime || (bNewDestination && (m_iCurrentSideLook == 0)) )
        {
            m_bNeedAim = true;

            Vector v[4]; // Forward, left, right, back.
            v[0] = m_vForward - m_vHead; // Forward.
            VectorVectors(v[0], v[2], v[3]); // Get right side.
            v[1] = -v[2]; // Left = -Right.
            v[3] = -v[0]; // Back = -Forward.

            // Get time to finish changing side look.
            //m_fEndAimTime = CBotrixPlugin::fTime + aEndAimTime[m_iIntelligence];

            if ( bIsTime )
            {
                static const float aBaseTime[4][EBotIntelligenceTotal] =
                {
                    { 11.0f, 9.0f, 7.0f, 5.0f, 3.0f }, // Base time to stay looking forward.
                    { 2.5f,  2.0f, 1.5f, 1.0f, 0.5f }, // Base time to stay looking left.
                    { 2.5f,  2.0f, 1.5f, 1.0f, 0.5f }, // Base time to stay looking right.
                    { 2.5f,  2.0f, 1.5f, 1.0f, 0.5f }, // Base time to stay looking back.
                };
                static const int aRandTime[4][EBotIntelligenceTotal] =
                {
                    { 7, 6, 5, 4, 3 }, // Random time to stay looking forward.
                    { 4, 4, 3, 3, 2 }, // Random time to stay looking left.
                    { 4, 4, 3, 3, 2 }, // Random time to stay looking right.
                    { 3, 3, 2, 2, 1 }, // Random time to stay looking back.
                };

                // Bot changes side look when time comes or destination is changed and it is looking forward.
                if (m_iCurrentSideLook == 0) // We were looking forward.
                {
                    do {
                        m_iCurrentSideLook = rand() & 3;
                    } while (m_iCurrentSideLook == 0);
                }
                else
                    m_iCurrentSideLook = 0; // Always look forward after looking other side.

                // Get time to start changing side look again.
                m_fRandomSideLookTime = aBaseTime[m_iCurrentSideLook][m_iIntelligence]  +  (rand() % aRandTime[m_iCurrentSideLook][m_iIntelligence]);

                // TODO: erase me.
                switch (m_iCurrentSideLook)
                {
                case 0: BotDebug("Forward %.1f", m_fRandomSideLookTime); break;
                case 1: BotDebug("Left %.1f", m_fRandomSideLookTime); break;
                case 2: BotDebug("Right %.1f", m_fRandomSideLookTime); break;
                case 3: BotDebug("Back %.1f", m_fRandomSideLookTime); break;
                }
            }

            // Make vector larger, so bot will not change it when pass it.
            v[m_iCurrentSideLook] *= 1000.0f;
            m_vLook = m_vHead;
            m_vLook += v[m_iCurrentSideLook];

            m_fEndAimTime = CBotrixPlugin::fTime + GetEndLookTime();

            if ( bIsTime )
                m_fRandomSideLookTime += m_fEndAimTime;
        }
    }

    else // Not using side look.*/
    {
        // Bot is moving using navigator, but doesn't need to change look, look at next waypoint.
        if ( m_bUseNavigatorToMove && !m_bNeedAim )
        {
            m_bNeedAim = true;
            m_vLook = m_vForward;
            m_vLook -= m_vHead;
            m_vLook *= 1000.0f;
            m_vLook += m_vHead; // m_vLook = m_vHead + (m_vForward - m_vHead)*1000.0f
            m_fEndAimTime = CBotrixPlugin::fTime + GetEndLookTime();
        }
    }
}

//----------------------------------------------------------------------------------------------------------------
bool CBot::ResolveStuckMove()
{
    TWaypointId iPrevCurrWaypoint = iCurrentWaypoint;

    // Reset waypoint.
    iCurrentWaypoint = CWaypoints::GetNearestWaypoint(m_vHead);
    if ( !CWaypoint::IsValid(iCurrentWaypoint) )
    {
        m_bMoveFailure = true;
        m_cNavigator.Stop();
        BotDebug( "%s -> Current waypoint invalid.", GetName() );
        return false;
    }

    // Check if bot is touching some door/elevator.
    if ( !m_bTest && m_aNearestItems[ EItemTypeDoor ].size() )
    {
        m_bMoveFailure = true; // Let mod decide what to do.
        return false;
    }

    pStuckObject = NULL;
	CWaypoint& wCurr = CWaypoints::Get( iCurrentWaypoint );

    // Check if bot is stucked with some object.
	for ( int iIndexStuckObject = 0; iIndexStuckObject < m_aNearestItems[EItemTypeObject].size(); ++iIndexStuckObject )
    {
        pStuckObject = &CItems::GetItems(EItemTypeObject)[ m_aNearestItems[EItemTypeObject][iIndexStuckObject] ];
        // If object is behind, it doesn't disturb.
        Vector vObject = pStuckObject->CurrentPosition();
        vObject -= m_vHead;

        Vector vGoing( m_vDestination );
        vGoing -= m_vHead;

        QAngle angGoing, angObject;
        VectorAngles(vObject, angObject);
        VectorAngles(vGoing, angGoing);

        CUtil::GetAngleDifference(angGoing, angObject, angGoing);

        if ( angGoing.y <= -90.0f || angGoing.y >= 90.0f )
            pStuckObject = NULL;
        else
            break;
    }

    if ( pStuckObject )
    {
        bool bCanThrow = !m_bDontThrowObjects && CWeapons::IsValid(m_iPhyscannon) && m_aWeapons[m_iPhyscannon].IsPresent() && !pStuckObject->IsHeavy();
        bool bThrowAtEnemy = bCanThrow && m_pCurrentEnemy && !m_bTest && !m_bDontAttack && !m_aWeapons[m_iPhyscannon].GetBaseWeapon()->bForbidden;

        if ( !m_bDontBreakObjects && pStuckObject->IsBreakable() && !pStuckObject->IsExplosive() && !bThrowAtEnemy ) // Prefer to throw at enemy.
        {
            BotDebug( "%s -> Stucked, will break object %s.", GetName(), pStuckObject->pItemClass->sClassName.c_str() );

            // Look at origin of the object.
            m_vLook = pStuckObject->CurrentPosition();
            m_fStartActionTime = m_fEndAimTime = CBotrixPlugin::fTime + GetEndLookTime(); // When start to break object.
			m_bResolvingStuck = m_bStuckBreakObject = m_bPathAim = true;
        }
        else if ( bCanThrow )
        {
            BotDebug( "%s -> Stucked, will throw object %s.", GetName(), pStuckObject->pItemClass->sClassName.c_str() );

            // Look at origin of the object.
            m_vLook = m_vDisturbingObjectPosition = pStuckObject->CurrentPosition();
            m_fStartActionTime = m_fEndAimTime = CBotrixPlugin::fTime + GetEndLookTime();
            m_fEndActionTime = m_fStartActionTime + 10.0f; // Give enough time to switch weapon/aim/look back/throw.

			m_bResolvingStuck = m_bStuckUsePhyscannon = m_bPathAim = true;
            m_bStuckPhyscannonEnd = false;
        }
        else
        {
            Vector vMins, vMaxs;
            pStuckObject->pEdict->GetCollideable()->WorldSpaceSurroundingBounds(&vMins, &vMaxs);
            float zDistance = vMaxs.z - vMins.z;
            if ( zDistance <= CMod::GetVar( EModVarPlayerJumpHeightCrouched ) ) // Can jump on it.
            {
                BotDebug( "%s -> Stucked, will jump on object %s.", GetName(), pStuckObject->pItemClass->sClassName.c_str() );

                m_bNeedJump = m_bNeedJumpDuck = true;
                m_fStartActionTime = CBotrixPlugin::fTime;
                m_fEndActionTime = CBotrixPlugin::fTime + 0.25f;
            }
            else // Try going left/right and then jump.
            {
                BotDebug("%s -> Stucked with object, will go %s.", GetName(), m_bStuckTryGoLeft ? "left" : "right");

                m_bResolvingStuck = m_bStuckTryingSide = true;
                m_bStuckTryGoLeft = !m_bStuckTryGoLeft;
                m_bNeedJump = m_bNeedJumpDuck = true;
                m_fStartActionTime = CBotrixPlugin::fTime + 0.75f;
                m_fEndActionTime = CBotrixPlugin::fTime + 1.0f;
            }
        }
    }

    else if ( m_bUseNavigatorToMove )
    {
        bool bSameWaypoint = iCurrentWaypoint == iPrevCurrWaypoint;

        if ( bSameWaypoint )
        {
            m_cNavigator.SetPreviousPathPosition(); // Curreint -> next.
            m_cNavigator.SetPreviousPathPosition(); // Previous -> current.
            m_cNavigator.GetNextWaypoints( iNextWaypoint, m_iAfterNextWaypoint );
            if ( iCurrentWaypoint == iNextWaypoint )
                m_cNavigator.GetNextWaypoints( iNextWaypoint, m_iAfterNextWaypoint );
        }

        // Mark path as unreachable.
        if ( CWaypoints::HasPath( iCurrentWaypoint, iNextWaypoint ) )
        {
            BotDebug( "%s -> Mark unreachable path from %d to %d.", GetName(), iCurrentWaypoint, iNextWaypoint );
            CWaypoints::MarkUnreachablePath( iCurrentWaypoint, iNextWaypoint );
        }

        if ( bSameWaypoint ) // Got stucked because action didn't work?
        {
            m_bStuck = false;

            // First test if we are touching current waypoint.
            bool bTouch = wCurr.IsTouching(m_vHead, m_bLadderMove);
            if ( bTouch || m_bStuckGotoCurrent )
            {
				m_bResolvingStuck = m_bRepeatWaypointAction = true;

                if ( !bTouch )
                {
                    ApplyPathFlags();       // Apply path flags from previous waypoint (to go back to current waypoint again).
                    m_bNeedJump = rand()&1; // Jump for just in case sometimes.
                }
				m_bStuckGotoCurrent = false; // Try to move left right next time.

                BotDebug( "%s -> Stucked, will go to previous waypoint %d (from %d).", GetName(), iNextWaypoint, iCurrentWaypoint );
            }
            else
            {
                // Check if next waypoint is more on left or right.
                CWaypoint& wNext = CWaypoints::Get(iNextWaypoint);
                Vector wNeed( wNext.vOrigin );
                wNeed -= wCurr.vOrigin;
                Vector wNow( m_vHead );
                wNow -= wCurr.vOrigin;

                QAngle angNeed, angNow;
                VectorAngles(wNeed, angNeed);
                VectorAngles(wNow, angNow);

                CUtil::GetAngleDifference(angNow, angNeed, angNow);

                m_bStuckTryGoLeft = ( angNow.y >= 0.0f ); // Need to increment angles, move left.
                m_bStuckTryingSide = true;
                m_bNeedJump = m_bNeedJumpDuck = true;
                m_fStartActionTime = CBotrixPlugin::fTime + 0.5f;
                m_fEndActionTime = CBotrixPlugin::fTime + 1.0f;

				m_bResolvingStuck = m_bStuckGotoCurrent = true; // Try to go back to current waypoint next time.
            
                BotDebug( "%s -> Stucked, try to move %s.", GetName(), m_bStuckTryGoLeft ? "left" : "right" );
            }
            return true;
        }
        else // Got stucked, because bot falled down or someone pushed it.
        {
            m_bPathAim = m_bLockNavigatorMove = false; // Release locks.
            m_bNeedJumpDuck = m_bNeedJump = m_bNeedAttack2 = m_bNeedAttack = m_bNeedSprint = m_bNeedDuck = m_bNeedWalk = false;

            BotDebug( "%s -> Stucked and lost, because of failure following path.", GetName() );
            if ( m_bTest )
            {
                m_bStuck = false;
                m_bDestinationChanged = true;
            }
            else // Lost path and stucked, move failure.
                m_bMoveFailure = true; // Let mod decide what to do.

            m_cNavigator.Stop();
        }
    }
    else // Not using navigator and stucked?
        m_bMoveFailure = true; // Let mod decide what to do.
    return false;
}

//----------------------------------------------------------------------------------------------------------------
bool CBot::MoveBetweenWaypoints()
{
    if ( !CWaypoints::Get(iNextWaypoint).IsTouching(m_vHead, m_bLadderMove) )
        return false;

    iCurrentWaypoint = iNextWaypoint; // Force current waypoint become the one we just reached.

    if ( m_bUseNavigatorToMove )
    {
        m_bNeedMove = m_bNeedMove && m_cNavigator.HasMoreCoords();
        if ( m_bNeedMove )
            m_cNavigator.GetNextWaypoints(iNextWaypoint, m_iAfterNextWaypoint);
        else
            m_iAfterNextWaypoint = iNextWaypoint = EWaypointIdInvalid;
    }
    else
    {
		m_iAfterNextWaypoint = iNextWaypoint = EWaypointIdInvalid;
        m_bNeedMove = false;
    }

	bool bDoingAction = DoWaypointAction();
	if ( m_bNeedMove && !bDoingAction ) // If not doing some waypoint action.
	{
		ApplyPathFlags();
		DoPathAction();
	}

    return true; // We arrived to next waypoint.
}

//----------------------------------------------------------------------------------------------------------------
bool CBot::NavigatorMove()
{
    GoodAssert( m_bUseNavigatorToMove );
    bool bArrived = false;

    if ( m_bDestinationChanged )
    {
        // Destination changed, make sure to start new path search.
        m_bDestinationChanged = false;
        m_cNavigator.Stop();
        if ( iCurrentWaypoint == m_iDestinationWaypoint )
        {
            m_bNeedMove = false;
            return true;
        }

        BASSERT( CWaypoint::IsValid(iCurrentWaypoint) && CWaypoint::IsValid(m_iDestinationWaypoint), return true );
        m_bMoveFailure = !m_cNavigator.SearchSetup( iCurrentWaypoint, m_iDestinationWaypoint, m_aAvoidAreas );
        iPrevWaypoint = iCurrentWaypoint;
    }

    // Check if bot arrived to destination. Set up new destination to next waypoint in path.
    else if ( m_cNavigator.PathFound() )
        return MoveBetweenWaypoints();

    if ( !m_bMoveFailure )
    {
        // Here search is still not finished.
        bArrived = m_cNavigator.SearchStep();

        if ( bArrived ) // Ended search just now.
        {
            m_bMoveFailure = !m_cNavigator.PathFound();

            if ( m_bMoveFailure )
            {
                BotDebug( "%s -> Can't reach waypoint %d.", GetName(), m_iDestinationWaypoint );
            }
            else
            {
                GoodAssert( m_cNavigator.PathFound() && m_cNavigator.HasMoreCoords() );
                m_cNavigator.GetNextWaypoints(iNextWaypoint, m_iAfterNextWaypoint);
                ApplyPathFlags();

                // First coord in path must be current waypoint.
                //GoodAssert( iCurrentWaypoint == iNextWaypoint );

                // If lost and iCurrentWaypoint == iNextWaypoint, perform waypoint 'touch'.
                if ( CWaypoints::Get(iNextWaypoint).IsTouching(m_vHead, m_bLadderMove) )
                {
                    if ( m_cNavigator.HasMoreCoords() )
                    {
                        m_cNavigator.GetNextWaypoints(iNextWaypoint, m_iAfterNextWaypoint);
                        if ( DoWaypointAction() == false ) // No need to perform waypoint action.
                        {
                            ApplyPathFlags();
                            DoPathAction();
                        }
                    }
                    else
                    {
                        GoodAssert( iCurrentWaypoint == m_iDestinationWaypoint );
                        m_bNeedMove = false; // We have arrived at destination.
                    }
                }
            }
        }
    }
    return bArrived;
}

//----------------------------------------------------------------------------------------------------------------
bool CBot::NormalMove()
{
    GoodAssert( m_bNeedMove );
    bool bArrived = false;
    if ( m_bDestinationChanged && CWaypoint::IsValid(iNextWaypoint) )
    {
        GoodAssert( iNextWaypoint != iCurrentWaypoint );
        m_vDestination = CWaypoints::Get(iNextWaypoint).vOrigin;
        DoPathAction();
        m_bDestinationChanged = false;
    }
    else
    {
        // Need to move only when not arrived.
        bArrived = CWaypoint::IsValid(iNextWaypoint)
            ? MoveBetweenWaypoints()
            : CUtil::IsPointTouch3d(m_vHead, m_vDestination, CMod::iPointTouchSquaredZ, CMod::iPointTouchSquaredXY);
        m_bNeedMove = !bArrived;
    }
    return bArrived;
}

//----------------------------------------------------------------------------------------------------------------
void CBot::PerformMove( TWaypointId iPreviousWaypoint, const Vector& vPrevOrigin )
{
    //m_cCmd.viewangles = m_pController->GetLocalAngles(); // TODO: WTF?
    //m_cCmd.viewangles = m_pPlayerInfo->GetAbsAngles(); // WTF?

    if  ( CheckMoveFailure() )
    {
        m_cNavigator.Stop();
        return;
    }

    if ( !m_bLastNeedMove && m_bNeedMove ) // Bot started to move just now, update stuck check time.
        m_fStuckCheckTime = CBotrixPlugin::fTime + 1.0f;
    m_bLastNeedMove = m_bNeedMove;

    // Waypoint just changed from previous and valid waypoint.
    bool bCurrentWaypointChanged = CWaypoint::IsValid(iPreviousWaypoint) && (iPreviousWaypoint != iCurrentWaypoint);
    if ( bCurrentWaypointChanged )
        CurrentWaypointJustChanged();

    bool bArrived = false; // Set to true if reached next waypoint in path or path searching just finished (then touched start waypoint).
    if ( m_bNeedMove && !m_bMoveFailure )
        bArrived = ( m_bUseNavigatorToMove ) ? NavigatorMove() : NormalMove();

    bool bMove = m_bNeedMove && !m_bMoveFailure && !m_bStuckBreakObject && !m_bStuckUsePhyscannon &&
                !m_bCommandStopped && !m_bAttackDuck;
    if ( m_bUseNavigatorToMove && ( !m_cNavigator.SearchEnded() || m_bLockNavigatorMove ) )
        bMove = false; // Check if search is finished (m_bMoveFailure will be set if search fails).

    // Check if need to look left/right/back/forward.
    CheckSideLook(bMove, bArrived);

    // Need to aim somewhere? TODO: faster...
    if ( m_bNeedAim )
    {
        //QAngle angOld = m_cCmd.viewangles;

        // Calculate how much frames left to m_fEndAimTime.
        float fTimeLeft = m_fEndAimTime - CBotrixPlugin::fTime;
        int iFramesLeft = (int)((float)CBotrixPlugin::iFPS * fTimeLeft);

        if ( iFramesLeft > 0 )
        {
            // Make smoother angle change (break in several angle changes).
            // https://developer.valvesoftware.com/wiki/QAngle
            Vector vDestinationAim( m_vLook );
            vDestinationAim -= m_vHead; // Get abs vector.

            QAngle angNeeded;
            VectorAngles(vDestinationAim, angNeeded);

            CUtil::GetAngleDifference(m_cCmd.viewangles, angNeeded, angNeeded);
            angNeeded /= iFramesLeft;

            m_cCmd.viewangles += angNeeded;
        }
        else
        {
            Vector vAbs(m_vLook);
            vAbs -= m_vHead;
            VectorAngles(vAbs, m_cCmd.viewangles); // Convert vector to angles.
            m_bNeedAim = false;
        }

        CUtil::DeNormalizeAngle(m_cCmd.viewangles.x);
        CUtil::DeNormalizeAngle(m_cCmd.viewangles.y);

        if ( !m_bEnemyAim )
        {
            if ( m_cCmd.viewangles.x > 60.0f )
                m_cCmd.viewangles.x = 60.0f;
            else if ( m_cCmd.viewangles.x < -60.0f )
                m_cCmd.viewangles.x = -60.0f;
        }
        //CUtil::DrawLine( m_vHead, m_vLook, 0.1f, 0xFF, 0xFF, 0xFF );
    }

    // Check if need moving.
    if ( bMove )
    {
        float fDeltaTime = CBotrixPlugin::fTime - m_fPrevThinkTime;
		if ( fDeltaTime == 0 ) fDeltaTime = 0.000001f; // Should not happend, sometimes happends. TODO: don't think in PreThink()...

        // Calculate distance from last frame.
        Vector vSpeed(m_vHead);
        vSpeed -= vPrevOrigin;
        vSpeed /= fDeltaTime; // v = (x - x0)/t

        // Cancel stuck check if bot needs to stop, or use, or perform action, or it is stucked already.
        if ( m_bNeedStop || m_bNeedUse || m_bStuck || m_bStuckTryingSide || CBotrixPlugin::fTime <= m_fEndActionTime )
        {
            m_bNeedCheckStuck = false;
        }
        else if ( !m_bNeedCheckStuck ) // Bot starts to move, set up next stuck check time.
        {
            // Check if bot is stucked after one second.
            m_bNeedCheckStuck = true;
            m_vStuckCheck = m_vHead;
            m_fStuckCheckTime = CBotrixPlugin::fTime + 1.0f;
            pStuckObject = NULL;
        }
        else if ( CBotrixPlugin::fTime >= m_fStuckCheckTime )
        {
            m_bNeedCheckStuck = false;

            // Distance that bot moves since m_fStuckCheckTime.
            if ( m_vStuckCheck.DistToSqr(m_vHead) < SQR(CMod::fMinNonStuckSpeed) )
            {
                m_bNeedCheckStuck = true;
                m_fStuckCheckTime = CBotrixPlugin::fTime + 5.0f; // Try again in 5 secs.
                if ( !ResolveStuckMove() )
                    return;
            }
        }

        // Calculate forward and side velocities to reach destination.
        //Vector vAccelerate(vSpeed);
        //vAccelerate -= m_vLastVelocity;
        //vAccelerate /= fDeltaTime;   // a = (v - v0)/t

        //m_vLastVelocity = vSpeed;
        Vector vNeededVelocity(m_vDestination);
        float fSpeed;

        // Need to stop before next move.
        if ( m_bNeedStop && (vSpeed.x == 0) && (vSpeed.y == 0) && (vSpeed.z == 0) )
            m_bNeedStop = false;

        if ( m_bNeedStop )
        {
            vNeededVelocity = CWaypoints::Get(iCurrentWaypoint).vOrigin; // Move to current waypoint instead of next one.
            vNeededVelocity -= m_vHead; // Abs vector.
            vNeededVelocity -= vSpeed;
            fSpeed = vNeededVelocity.Length();
        }
        else
        {
            //m_bNeedSprint = true; // For DEBUG purposes.
            fSpeed = CMod::GetVar( m_bNeedSprint ? EModVarPlayerVelocitySprint : m_bNeedWalk ? EModVarPlayerVelocityWalk : EModVarPlayerVelocityRun );

            vNeededVelocity -= m_vHead; // Destination - head (absolute vector).

            if ( m_bStuckTryingSide ) // Currently stucked, trying to move left/right.
            {
                if ( CBotrixPlugin::fTime < m_fEndActionTime )
                {
                    // If bot was stucked then move left or right accordingly.
                    Vector vUp, vRight;
                    VectorVectors(vNeededVelocity, vRight, vUp);
                    if ( m_bStuckTryGoLeft )
                        vRight.Negate();
                    vNeededVelocity = vRight;
                    //BotDebug("Stucked, trying side until %.1f, now %.1f", m_fEndActionTime, CBotrixPlugin::fTime);
                }
                else
                {
                    BotDebug( "%s -> Stucked, end moving left/right.", GetName() );
                    m_bStuckTryingSide = false;
                }
            }

            vNeededVelocity.NormalizeInPlace();
            vNeededVelocity *= fSpeed;

            vNeededVelocity -= vSpeed;
        }

        QAngle angNeeded;
        VectorAngles(vNeededVelocity, angNeeded);

        CUtil::NormalizeAngle(angNeeded.y);
        CUtil::GetAngleDifference(m_cCmd.viewangles, angNeeded, angNeeded);

        //CUtil::DeNormalizeAngle(angNeeded.y);
        //float fYaw = (angNeeded.y * 3.14159265f) / 180.0f; // Degree to radians.
        //m_cCmd.forwardmove = fSpeed * FastCos(fYaw);
        //m_cCmd.sidemove = -fSpeed * FastSin(fYaw);

        //Vector vMove(m_cCmd.forwardmove, m_cCmd.sidemove, 0);
        //vMove += m_vHead;
        //CUtil::DrawLine( m_vHead, vMove, 0.1f, 0xFF, 0xFF, 0xFF );

        // Check forward/backward move.
        if ( (-45.0f <= angNeeded.y) && (angNeeded.y <= 45.0f) )
            m_cCmd.forwardmove = fSpeed;
        else if ( (angNeeded.y <= -135.0f) || (angNeeded.y >= 135.0f) )
            m_cCmd.forwardmove = -fSpeed;

        // Check left/right move.
        if ( (45.0f <= angNeeded.y) && (angNeeded.y <= 135.0f) )
            m_cCmd.sidemove = -fSpeed;
        else if ( (-135.0f <= angNeeded.y) && (angNeeded.y <= -45.0f) )
            m_cCmd.sidemove = fSpeed;

        //BLOG_D("Forward %f, side %f", m_cCmd.forwardmove, m_cCmd.sidemove);
    }
    else // No need to move.
    {
        m_bNeedCheckStuck = false;
        /*
        m_vLastVelocity = m_vLastOrigin;
        m_vLastVelocity -= m_vHead;
        m_vLastVelocity /= fDeltaTime;
        */
    }

    // Check if stuck object is still near.
    if ( pStuckObject )
    {
        bool bFound = false;
        for ( int i = 0; i < m_aNearestItems[ EItemTypeObject ].size(); ++i )
        {
            TItemIndex iItem = m_aNearestItems[ EItemTypeObject ][ i ];
            const CItem* pObject = &CItems::GetItems( EItemTypeObject )[ iItem ];
            if ( pObject == pStuckObject )
            {
                bFound = true;
                break;
            }
        }
        if ( !bFound )
            pStuckObject = NULL;
    }

    //---------------------------------------------------------------
    if ( !m_bDontAttack )
    {
        CWeaponWithAmmo* pWeapon = CWeapons::IsValid(m_iWeapon) ? &m_aWeapons[m_iWeapon] : NULL;
        if ( m_pCurrentEnemy )
        {
            GoodAssert( m_pCurrentEnemy != this );
            if ( !m_bNeedAim )
            {
                m_bEnemyAimed = true;
                m_bStayReloading = false; // At reload time, check if it is better to change weapon. TODO: check.

                // Aim again.
                EnemyAim();
            }

            if ( m_bEnemyAimed && !m_bEnemyOffSight )
            {
                if ( pWeapon )
                {
                    if ( pWeapon->CanUse() ) // Stay shooting after first time aimed at enemy.
                    {
                        bool bZooming = false;
                        if ( pWeapon->IsSniper()  ) // Check if need to zoom or out.
                        {
                            bool bNeedZoom = pWeapon->ShouldZoom(m_fDistanceSqrToEnemy);
                            if ( ( bNeedZoom && !pWeapon->IsUsingZoom() ) ||
                                 ( !bNeedZoom &&  pWeapon->IsUsingZoom() ) )
                            {
                                WeaponToggleZoom();
                                bZooming = true;
                            }
                        }

                        if ( !bZooming )
                        {
                            // Hit with melee.
                            if ( pWeapon->IsMelee() )
                            {
                                int iSec = pWeapon->Damage(CWeapon::PRIMARY) < pWeapon->Damage(CWeapon::SECONDARY);
                                if ( pWeapon->IsDistanceSafe(m_fDistanceSqrToEnemy, iSec) )
                                    WeaponShoot(iSec);
                                else if ( !m_bStuckBreakObject )
                                    WeaponChoose();
                            }
                            // Prefer secondary attack.
                            else if ( pWeapon->HasAmmoInClip(CWeapon::SECONDARY) &&
                                 pWeapon->IsDistanceSafe(m_fDistanceSqrToEnemy, CWeapon::SECONDARY) )
                                WeaponShoot(CWeapon::SECONDARY);
                            else if ( pWeapon->HasAmmoInClip(CWeapon::PRIMARY) &&
                                      pWeapon->IsDistanceSafe(m_fDistanceSqrToEnemy, CWeapon::PRIMARY) )
                                WeaponShoot(CWeapon::PRIMARY);
                            else if ( !m_bStuckUsePhyscannon && pWeapon->IsPhysics() )
                                WeaponChoose(); // No more bullets, select another weapon.
                        }
                    }
                }
                else if ( rand() % 20 ) // 19 out of 20 times shoot primary.
                {
                    WeaponShoot( CWeapon::PRIMARY );
                }
                else if ( (rand() % 4) == 0 )
                    WeaponShoot( CWeapon::SECONDARY );
            }
        }
        else // No enemy.
        {
            m_bEnemyAim = m_bAttackDuck = false; // Bot is not under attack now.
            if ( pWeapon )
            {
                if ( pWeapon->IsSniper() && pWeapon->IsUsingZoom() && pWeapon->CanUse() )
                    WeaponToggleZoom();
                else if ( m_bNeedReload && !pWeapon->IsReloading() && !m_bStuckUsePhyscannon && !m_bStuckBreakObject )
                    WeaponChoose();
            }
        }
    }

    //---------------------------------------------------------------
    // Aim finished and need start to use IN_USE button.
    if ( m_bNeedUse && !m_pCurrentEnemy && !m_bNeedAim )
    {
        if ( !m_bAlreadyUsed )
        {
            FLAG_SET( IN_USE, m_cCmd.buttons ); // For button we just press USE for one frame.
            if ( m_bUsingHealthMachine || m_bUsingArmorMachine )
            {
                if ( CBotrixPlugin::fTime >= m_fEndActionTime )
                {
                    BotDebug( "%s -> End using health/armor charger.", GetName() );

                    // Ended using machine, check if need to use again.
                    int iHealthArmor = m_bUsingHealthMachine ? m_pPlayerInfo->GetHealth() : m_pPlayerInfo->GetArmorValue();
                    if ( iHealthArmor == m_iLastHealthArmor )
                    {
                        m_bAlreadyUsed = true;
                    }
                    else
                    {
                        //BLOG_T("Incremented %d of %s, now %d.", iHealthArmor - m_iLastHealthArmor, m_bUsingHealthMachine ? "health" : "armor", iHealthArmor);
                        m_iLastHealthArmor = iHealthArmor;
                        m_fEndActionTime = CBotrixPlugin::fTime + m_fTimeIntervalCheckUsingMachines;
                    }
                }
            }
            else
            {
                m_bAlreadyUsed = true;
            }
        }

        if ( m_bAlreadyUsed )
        {
            m_bNeedUse = false;
            // Only apply path flags if we needed to USE, otherwise they are already applied.
            if ( m_bUsingHealthMachine || m_bUsingArmorMachine || m_bUsingButton )
            {
                m_bUsingHealthMachine = m_bUsingArmorMachine = m_bUsingButton = false;
                if ( CWaypoint::IsValid( iNextWaypoint ) )
                {
                    ApplyPathFlags();
                    DoPathAction();
                }
            }
		}
    }

    // If bot is on ladder forwardmove and sidemove are not used, but IN_FORWARD & IN_BACK used instead.
    if ( m_bLadderMove )
        FLAG_SET(IN_FORWARD, m_cCmd.buttons); // Should be looking at next waypoint.

    // Jump only once.
    if ( m_bNeedJump && (CBotrixPlugin::fTime >= m_fStartActionTime) )
    {
        FLAG_SET(IN_JUMP, m_cCmd.buttons);
        m_bNeedJump = false;
    }

    // Start holding duck for jump after m_fStartActionTime.
    if ( m_bNeedJumpDuck && (CBotrixPlugin::fTime >= m_fStartActionTime + 0.1f) )
    {
        // Stop holding duck for jump after m_fEndActionTime.
        if ( CBotrixPlugin::fTime >= m_fEndActionTime )
            m_bNeedJumpDuck = false;
        else
            FLAG_SET(IN_DUCK, m_cCmd.buttons);
    }

    // Start holding attack after m_fStartActionTime.
    if ( m_bNeedAttack )
    {
        // Set melee weapon.
        if ( (m_iWeapon != m_iMeleeWeapon) && CWeapons::IsValid(m_iMeleeWeapon) )
        {
            if ( m_aWeapons[m_iWeapon].CanChange() )
                ChangeWeapon(m_iMeleeWeapon);
        }
        else
        {
            // Check if some object is near.
            if ( pStuckObject && pStuckObject->IsBreakable() && !pStuckObject->IsExplosive() )
            {
				m_bResolvingStuck = m_bStuckBreakObject = true; // Try to break the object, instead of just hitting blindly.
                m_bNeedAttack = false;
            }
            else if ( CBotrixPlugin::fTime < m_fEndActionTime ) // Stop attacking after m_fEndActionTime.
            {
                if ( CWeapons::IsValid(m_iWeapon) && m_aWeapons[m_iWeapon].CanUse() )
                    WeaponShoot();
            }
            else
            {
                m_bNeedAttack = false;
                m_bNeedSetWeapon = true;
            }
        }
    }

    // Aim at object (at m_fStartActionTime), press ATTACK2 (physcannon) for a second, aim back, press ATTACK1 once.
    if ( m_bStuckUsePhyscannon )
    {
        // Still not finished throwing object.
        if ( pStuckObject && (CBotrixPlugin::fTime < m_fEndActionTime) )
        {
            if ( !m_bStuckPhyscannonEnd )
            {
                if ( m_iWeapon != m_iPhyscannon ) // Still need to switch weapon to physcannon.
                {
                    if ( m_aWeapons[m_iWeapon].CanChange() )
                    {
                        ChangeWeapon(m_iPhyscannon);
                        float fPhyscannonUseTime = m_aWeapons[m_iPhyscannon].GetEndTime();
                        if ( fPhyscannonUseTime > m_fEndAimTime + 0.1f )
                            m_fEndAimTime = fPhyscannonUseTime - 0.1f;
                        else
                            fPhyscannonUseTime = m_fEndAimTime + 0.1f;
                        m_fStartActionTime = fPhyscannonUseTime;
                    }
                }
                else // Current weapon is physcannon.
                {
                    if ( (CBotrixPlugin::fTime >= m_fStartActionTime) ) // Aimed at object, can use physcannon now.
                    {
                        if ( CBotrixPlugin::fTime < m_fStartActionTime + 0.5f + 0.1f*(EBotPro - m_iIntelligence + 1) )
                        {
                            BotDebug( "%s -> Use physcannon on object.", GetName() );
                            WeaponShoot(CWeapon::SECONDARY); // Attract object for half second.
                        }
                        else
                        {
                            /*if ( pObject && (pObject->CurrentPosition() == m_vDisturbingObjectPosition) )
                            {
                                BotDebug( "%s -> Object position didn't change, aborting.", GetName() );
                                // Bot can't pick it up? TODO: Maybe bot is standing on object.
                                // FLAG_SET(FObjectHeavy, ((CItem*)pObject)->iFlags);
                                WeaponShoot(CWeapon::PRIMARY);
                                m_bResolvingStuck =m_bStuckUsePhyscannon = m_bPathAim = false;
                                m_bNeedSetWeapon = true;
                            }
                            else */if ( m_pCurrentEnemy && !m_bTest && !m_bDontAttack ) // Throw it at enemy.
                            {
                                BotDebug( "%s -> Holding object, aim enemy.", GetName() );
                                m_bNeedAim = true;
                                m_pCurrentEnemy->GetCenter(m_vLook);
                                m_fEndAimTime = CBotrixPlugin::fTime + GetEndLookTime();
                                m_fEndActionTime = m_fEndAimTime + 0.1f*(EBotPro - m_iIntelligence + 1);
                            }
                            else
                            {
                                BotDebug( "%s -> Holding object, aim back.", GetName() );
                                // Look back while holding object.
                                m_bNeedAim = true;
                                m_vLook = m_vHead;
                                m_vLook -= m_vDestination;
                                m_vLook += m_vHead; // back = (head - waypoint) + head.

                                m_fEndAimTime = CBotrixPlugin::fTime + GetEndLookTime();
                                m_fEndActionTime = m_fEndAimTime + 0.1f*(EBotPro - m_iIntelligence + 1);
                            }
                            m_bStuckPhyscannonEnd = true;
                        }
                    }
                }
            }
        }
        else // Throw object and restore previous weapon.
        {
            // Bot should be holding object, throw it away.
            if ( m_iWeapon == m_iPhyscannon )
                WeaponShoot(CWeapon::PRIMARY);
			m_bResolvingStuck = m_bStuckUsePhyscannon = m_bPathAim = false;
            m_bNeedSetWeapon = true;
        }
    }

    // Start holding attack after m_fStartActionTime until break object or object moves far away.
    else if ( m_bStuckBreakObject )
    {
        if ( pStuckObject )
        {
            if ( m_bFeatureWeaponCheck && CWeapons::IsValid(m_iMeleeWeapon) && (m_iWeapon != m_iMeleeWeapon) && m_aWeapons[m_iWeapon].CanChange() &&
                 ( !m_pCurrentEnemy || (m_iWeapon == m_iPhyscannon) || !m_aWeapons[m_iWeapon].CanBeUsed( pStuckObject->CurrentPosition().DistToSqr(GetHead()) ) ) )
            {
                ChangeWeapon(m_iMeleeWeapon);
                float fEndChange = m_aWeapons[m_iWeapon].GetEndTime();
                if ( m_fStartActionTime < fEndChange )
                    m_fStartActionTime = fEndChange;
            }

            if ( CBotrixPlugin::fTime >= m_fStartActionTime ) // Aimed.
            {
                if ( pStuckObject && pStuckObject->IsBreakable() && !pStuckObject->IsExplosive() ) // Object still there.
                {
                    if ( CWeapons::IsValid(m_iWeapon) && m_aWeapons[m_iWeapon].CanUse() )
                        WeaponShoot();

                    if ( (CBotrixPlugin::fTime >= m_fEndAimTime + 1.0f) ) // Maybe object moved.
                    {
                        m_bNeedAim = true;
                        m_vLook = pStuckObject->CurrentPosition();
                        int r = 4 - (rand() & 0x7); // Maybe object has holes: add random from -3 to 4.
                        m_vLook.x += r;
                        m_vLook.y += -r;
                        m_vLook.z += r;
                        m_fEndAimTime = CBotrixPlugin::fTime + GetEndLookTime();
                    }
                }
                else // Object broken, restore previous weapon.
                {
                    m_bStuckBreakObject = m_bPathAim = false;
                    m_bNeedSetWeapon = true;
                }
            }
        }
        else
        {
            BotDebug( "%s -> Object far or broken.", GetName() );
			m_bResolvingStuck = m_bStuckBreakObject = false;
        }
    }

    // Duck until bot reaches next waypoint.
    if ( m_bNeedDuck || m_bAttackDuck )
        FLAG_SET(IN_DUCK, m_cCmd.buttons);

    // Sprint until bot reaches next waypoint. Not working.
    if ( m_bNeedSprint )
        FLAG_SET(IN_SPEED, m_cCmd.buttons);

    // Toggle flashlight.
    if ( m_bNeedFlashlight ^ m_bUsingFlashlight )
    {
        m_bUsingFlashlight = !m_bUsingFlashlight;
        m_cCmd.impulse = 100;
    }

    if ( m_bNeedSetWeapon )
        WeaponChoose();
}