177 lines
4.0 KiB
C++
177 lines
4.0 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#include "cbase.h"
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#include "c_ai_basenpc.h"
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#include "beam_shared.h"
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#include "prop_portal_shared.h"
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#define ROCKET_TURRET_LASER_ATTACHMENT 2
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#define ROCKET_TURRET_LASER_RANGE 8192
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#define ROCKET_TURRET_END_POINT_PULSE_SCALE 5.0f
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class C_NPC_RocketTurret : public C_AI_BaseNPC
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{
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public:
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DECLARE_CLASS( C_NPC_RocketTurret, C_AI_BaseNPC );
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DECLARE_CLIENTCLASS();
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C_NPC_RocketTurret( void );
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virtual ~C_NPC_RocketTurret( void );
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virtual void Spawn( void );
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virtual void ClientThink( void );
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virtual ITraceFilter* GetBeamTraceFilter( void );
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void LaserOff( void );
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void LaserOn( void );
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float LaserEndPointSize( void );
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private:
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CBeam *m_pBeam;
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int m_iLaserState;
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int m_nSiteHalo;
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float m_fPulseOffset;
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QAngle m_vecCurrentAngles;
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CTraceFilterSkipTwoEntities m_filterBeams;
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};
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IMPLEMENT_CLIENTCLASS_DT( C_NPC_RocketTurret, DT_NPC_RocketTurret, CNPC_RocketTurret )
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RecvPropInt( RECVINFO( m_iLaserState ) ),
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RecvPropInt( RECVINFO( m_nSiteHalo ) ),
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RecvPropVector( RECVINFO( m_vecCurrentAngles ) ),
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END_RECV_TABLE()
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C_NPC_RocketTurret::C_NPC_RocketTurret( void )
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: m_filterBeams( NULL, NULL, COLLISION_GROUP_DEBRIS )
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{
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m_filterBeams.SetPassEntity( this );
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m_filterBeams.SetPassEntity2( UTIL_PlayerByIndex( 1 ) );
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}
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C_NPC_RocketTurret::~C_NPC_RocketTurret( void )
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{
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LaserOff();
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if( m_pBeam )
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m_pBeam->Remove();
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}
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void C_NPC_RocketTurret::Spawn( void )
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{
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SetThink( &C_NPC_RocketTurret::ClientThink );
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SetNextClientThink( CLIENT_THINK_ALWAYS );
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m_pBeam = NULL;
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m_fPulseOffset = RandomFloat( 0.0f, 2.0f * M_PI );
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BaseClass::Spawn();
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}
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void C_NPC_RocketTurret::ClientThink( void )
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{
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if ( m_iLaserState == 0 )
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LaserOff();
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else
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LaserOn();
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}
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ITraceFilter* C_NPC_RocketTurret::GetBeamTraceFilter( void )
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{
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return &m_filterBeams;
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}
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void C_NPC_RocketTurret::LaserOff( void )
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{
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if( m_pBeam )
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m_pBeam->AddEffects( EF_NODRAW );
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}
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void C_NPC_RocketTurret::LaserOn( void )
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{
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if ( !IsBoneAccessAllowed() )
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{
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LaserOff();
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return;
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}
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Vector vecMuzzle;
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QAngle angMuzzleDir;
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GetAttachment( ROCKET_TURRET_LASER_ATTACHMENT, vecMuzzle, angMuzzleDir );
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QAngle angAimDir = m_vecCurrentAngles;
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Vector vecAimDir;
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AngleVectors ( angAimDir, &vecAimDir );
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if (!m_pBeam)
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{
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m_pBeam = CBeam::BeamCreate( "effects/bluelaser1.vmt", 0.1 );
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m_pBeam->SetHaloTexture( m_nSiteHalo );
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m_pBeam->SetColor( 100, 100, 255 );
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m_pBeam->SetBrightness( 100 );
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m_pBeam->SetNoise( 0 );
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m_pBeam->SetWidth( 1 );
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m_pBeam->SetEndWidth( 0 );
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m_pBeam->SetScrollRate( 0 );
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m_pBeam->SetFadeLength( 0 );
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m_pBeam->SetHaloScale( 16.0f );
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m_pBeam->SetCollisionGroup( COLLISION_GROUP_NONE );
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m_pBeam->SetBeamFlag( FBEAM_REVERSED );
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m_pBeam->PointsInit( vecMuzzle + vecAimDir, vecMuzzle );
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m_pBeam->SetStartEntity( this );
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}
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else
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{
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m_pBeam->RemoveEffects( EF_NODRAW );
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}
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if ( m_iLaserState == 2 )
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{
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// Beam is freaking out
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float fSize = RandomFloat( 0.5f, 5.0f );
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int iRate = RandomInt( 4, 20 );
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m_pBeam->SetWidth( fSize );
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m_pBeam->SetScrollRate( iRate );
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}
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else
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{
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m_pBeam->SetWidth( 1 );
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m_pBeam->SetScrollRate( 0 );
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}
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// Trace to find an endpoint (so the beam draws through portals)
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Vector vEndPoint;
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float fEndFraction;
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Ray_t rayPath;
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rayPath.Init( vecMuzzle, vecMuzzle + vecAimDir * ROCKET_TURRET_LASER_RANGE );
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if ( UTIL_Portal_TraceRay_Beam( rayPath, MASK_SHOT, &m_filterBeams, &fEndFraction ) )
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vEndPoint = vecMuzzle + vecAimDir * ROCKET_TURRET_LASER_RANGE; // Trace went through portal and endpoint is unknown
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else
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vEndPoint = vecMuzzle + vecAimDir * ROCKET_TURRET_LASER_RANGE * fEndFraction; // Trace hit a wall
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m_pBeam->PointsInit( vEndPoint, vecMuzzle );
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m_pBeam->SetHaloScale( LaserEndPointSize() );
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}
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float C_NPC_RocketTurret::LaserEndPointSize( void )
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{
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return ( MAX( 0.0f, sinf( gpGlobals->curtime * M_PI + m_fPulseOffset ) ) ) * ROCKET_TURRET_END_POINT_PULSE_SCALE + 1.0f;
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} |