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184 lines
5.2 KiB
184 lines
5.2 KiB
![]()
4 years ago
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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//=============================================================================//
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#include "cbase.h"
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#include "info_camera_link.h"
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#include "point_camera.h"
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#include "utllinkedlist.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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//-----------------------------------------------------------------------------
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// Link between entities and cameras
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//-----------------------------------------------------------------------------
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class CInfoCameraLink : public CLogicalEntity
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{
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DECLARE_CLASS( CInfoCameraLink, CLogicalEntity );
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DECLARE_DATADESC();
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public:
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CInfoCameraLink();
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~CInfoCameraLink();
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virtual void Activate();
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private:
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void InputSetCamera(inputdata_t &inputdata);
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void InputSetTargetEntity(inputdata_t &inputdata);
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void SetCameraByName(const char *szName);
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CHandle<CPointCamera> m_hCamera;
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EHANDLE m_hTargetEntity;
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string_t m_strPointCamera;
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friend CBaseEntity *CreateInfoCameraLink( CBaseEntity *pTarget, CPointCamera *pCamera );
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friend void PointCameraSetupVisibility( CBaseEntity *pPlayer, int area, unsigned char *pvs, int pvssize );
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};
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//-----------------------------------------------------------------------------
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// List of all info camera links
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//-----------------------------------------------------------------------------
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CUtlFixedLinkedList<CInfoCameraLink *> g_InfoCameraLinkList;
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//-----------------------------------------------------------------------------
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// Save/load
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//-----------------------------------------------------------------------------
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BEGIN_DATADESC( CInfoCameraLink )
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DEFINE_KEYFIELD( m_strPointCamera, FIELD_STRING, "PointCamera" ),
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DEFINE_FIELD( m_hCamera, FIELD_EHANDLE ),
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DEFINE_FIELD( m_hTargetEntity, FIELD_EHANDLE ),
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// Outputs
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DEFINE_INPUTFUNC( FIELD_STRING, "SetCamera", InputSetCamera ),
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END_DATADESC()
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LINK_ENTITY_TO_CLASS( info_camera_link, CInfoCameraLink );
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//-----------------------------------------------------------------------------
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// Constructor, destructor
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//-----------------------------------------------------------------------------
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CInfoCameraLink::CInfoCameraLink()
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{
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g_InfoCameraLinkList.AddToTail( this );
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}
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CInfoCameraLink::~CInfoCameraLink()
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{
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g_InfoCameraLinkList.FindAndRemove( this );
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}
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//-----------------------------------------------------------------------------
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// Purpose: Called after all entities have spawned and after a load game.
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//-----------------------------------------------------------------------------
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void CInfoCameraLink::Activate()
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{
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BaseClass::Activate();
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// Checks necessary to prevent interference with CreateInfoCameraLink
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if ( !m_hCamera )
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{
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SetCameraByName( STRING(m_strPointCamera) );
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}
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if ( !m_hTargetEntity )
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{
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m_hTargetEntity = gEntList.FindEntityByName( NULL, STRING(m_target) );
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}
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}
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void CInfoCameraLink::SetCameraByName(const char *szName)
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{
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CBaseEntity *pBaseEnt = gEntList.FindEntityByName( NULL, szName );
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if( pBaseEnt )
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{
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m_hCamera = dynamic_cast<CPointCamera *>( pBaseEnt );
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if ( m_hCamera )
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{
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// Keep the camera name consistent for save/load
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m_strPointCamera = MAKE_STRING( szName );
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}
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CInfoCameraLink::InputSetCamera(inputdata_t &inputdata)
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{
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SetCameraByName( inputdata.value.String() );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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CBaseEntity *CreateInfoCameraLink( CBaseEntity *pTarget, CPointCamera *pCamera )
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{
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CInfoCameraLink *pInfoCameraLink = (CInfoCameraLink*)CreateEntityByName( "info_camera_link" );
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if ( !pInfoCameraLink )
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return NULL;
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pInfoCameraLink->m_hCamera = pCamera;
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pInfoCameraLink->m_hTargetEntity = pTarget;
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pInfoCameraLink->Spawn();
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return pInfoCameraLink;
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}
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//-----------------------------------------------------------------------------
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// Sets up visibility
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//-----------------------------------------------------------------------------
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void PointCameraSetupVisibility( CBaseEntity *pPlayer, int area, unsigned char *pvs, int pvssize )
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{
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for ( CPointCamera *pCameraEnt = GetPointCameraList(); pCameraEnt != NULL; pCameraEnt = pCameraEnt->m_pNext )
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{
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pCameraEnt->SetActive( false );
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}
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int nNext;
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for ( int i = g_InfoCameraLinkList.Head(); i != g_InfoCameraLinkList.InvalidIndex(); i = nNext )
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{
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nNext = g_InfoCameraLinkList.Next( i );
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CBaseEntity *pTargetEnt = g_InfoCameraLinkList[i]->m_hTargetEntity;
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if ( !pTargetEnt )
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{
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UTIL_Remove( g_InfoCameraLinkList[i] );
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continue;
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}
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// Don't bother if it's not visible
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if ( pTargetEnt->IsEffectActive( EF_NODRAW ) )
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continue;
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if ( !pTargetEnt->NetworkProp()->IsInPVS( pPlayer->edict(), pvs, pvssize ) )
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continue;
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if ( engine->CheckAreasConnected( area, pTargetEnt->NetworkProp()->AreaNum() ) )
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{
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CPointCamera *pCameraEnt = g_InfoCameraLinkList[i]->m_hCamera;
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if ( pCameraEnt )
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{
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engine->AddOriginToPVS( pCameraEnt->GetAbsOrigin() );
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pCameraEnt->SetActive( true );
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}
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}
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}
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}
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