mirror of
https://github.com/nillerusr/source-engine.git
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574 lines
16 KiB
C++
574 lines
16 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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// $Workfile: $
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// $NoKeywords: $
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//===========================================================================//
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//-----------------------------------------------------------------------------
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// Purpose: a global list of all the entities in the game. All iteration through
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// entities is done through this object.
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//-----------------------------------------------------------------------------
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#include "cbase.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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// Globals
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//-----------------------------------------------------------------------------
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// Create interface
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static CClientEntityList s_EntityList;
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CBaseEntityList *g_pEntityList = &s_EntityList;
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// Expose list to engine
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EXPOSE_SINGLE_INTERFACE_GLOBALVAR( CClientEntityList, IClientEntityList, VCLIENTENTITYLIST_INTERFACE_VERSION, s_EntityList );
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// Store local pointer to interface for rest of client .dll only
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// (CClientEntityList instead of IClientEntityList )
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CClientEntityList *cl_entitylist = &s_EntityList;
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bool PVSNotifierMap_LessFunc( IClientUnknown* const &a, IClientUnknown* const &b )
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{
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return a < b;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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CClientEntityList::CClientEntityList( void ) :
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m_PVSNotifierMap( 0, 0, PVSNotifierMap_LessFunc )
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{
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m_iMaxUsedServerIndex = -1;
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m_iMaxServerEnts = 0;
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Release();
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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CClientEntityList::~CClientEntityList( void )
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{
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Release();
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}
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//-----------------------------------------------------------------------------
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// Purpose: Clears all entity lists and releases entities
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//-----------------------------------------------------------------------------
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void CClientEntityList::Release( void )
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{
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// Free all the entities.
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ClientEntityHandle_t iter = FirstHandle();
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while( iter != InvalidHandle() )
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{
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// Try to call release on anything we can.
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IClientNetworkable *pNet = GetClientNetworkableFromHandle( iter );
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if ( pNet )
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{
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pNet->Release();
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}
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else
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{
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// Try to call release on anything we can.
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IClientThinkable *pThinkable = GetClientThinkableFromHandle( iter );
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if ( pThinkable )
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{
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pThinkable->Release();
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}
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}
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RemoveEntity( iter );
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iter = FirstHandle();
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}
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m_iNumServerEnts = 0;
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m_iMaxServerEnts = 0;
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m_iNumClientNonNetworkable = 0;
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m_iMaxUsedServerIndex = -1;
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}
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IClientNetworkable* CClientEntityList::GetClientNetworkable( int entnum )
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{
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Assert( entnum >= 0 );
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Assert( entnum < MAX_EDICTS );
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return m_EntityCacheInfo[entnum].m_pNetworkable;
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}
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IClientEntity* CClientEntityList::GetClientEntity( int entnum )
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{
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IClientUnknown *pEnt = GetListedEntity( entnum );
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return pEnt ? pEnt->GetIClientEntity() : 0;
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}
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int CClientEntityList::NumberOfEntities( bool bIncludeNonNetworkable )
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{
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if ( bIncludeNonNetworkable == true )
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return m_iNumServerEnts + m_iNumClientNonNetworkable;
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return m_iNumServerEnts;
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}
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void CClientEntityList::SetMaxEntities( int maxents )
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{
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m_iMaxServerEnts = maxents;
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}
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int CClientEntityList::GetMaxEntities( void )
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{
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return m_iMaxServerEnts;
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}
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//-----------------------------------------------------------------------------
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// Convenience methods to convert between entindex + ClientEntityHandle_t
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//-----------------------------------------------------------------------------
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int CClientEntityList::HandleToEntIndex( ClientEntityHandle_t handle )
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{
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if ( handle == INVALID_EHANDLE_INDEX )
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return -1;
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C_BaseEntity *pEnt = GetBaseEntityFromHandle( handle );
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return pEnt ? pEnt->entindex() : -1;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Because m_iNumServerEnts != last index
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// Output : int
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//-----------------------------------------------------------------------------
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int CClientEntityList::GetHighestEntityIndex( void )
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{
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return m_iMaxUsedServerIndex;
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}
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void CClientEntityList::RecomputeHighestEntityUsed( void )
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{
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m_iMaxUsedServerIndex = -1;
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// Walk backward looking for first valid index
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int i;
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for ( i = MAX_EDICTS - 1; i >= 0; i-- )
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{
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if ( GetListedEntity( i ) != NULL )
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{
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m_iMaxUsedServerIndex = i;
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break;
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}
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose: Add a raw C_BaseEntity to the entity list.
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// Input : index -
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : index -
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//-----------------------------------------------------------------------------
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C_BaseEntity* CClientEntityList::GetBaseEntity( int entnum )
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{
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IClientUnknown *pEnt = GetListedEntity( entnum );
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return pEnt ? pEnt->GetBaseEntity() : 0;
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}
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ICollideable* CClientEntityList::GetCollideable( int entnum )
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{
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IClientUnknown *pEnt = GetListedEntity( entnum );
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return pEnt ? pEnt->GetCollideable() : 0;
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}
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IClientNetworkable* CClientEntityList::GetClientNetworkableFromHandle( ClientEntityHandle_t hEnt )
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{
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IClientUnknown *pEnt = GetClientUnknownFromHandle( hEnt );
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return pEnt ? pEnt->GetClientNetworkable() : 0;
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}
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IClientEntity* CClientEntityList::GetClientEntityFromHandle( ClientEntityHandle_t hEnt )
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{
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IClientUnknown *pEnt = GetClientUnknownFromHandle( hEnt );
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return pEnt ? pEnt->GetIClientEntity() : 0;
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}
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IClientRenderable* CClientEntityList::GetClientRenderableFromHandle( ClientEntityHandle_t hEnt )
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{
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IClientUnknown *pEnt = GetClientUnknownFromHandle( hEnt );
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return pEnt ? pEnt->GetClientRenderable() : 0;
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}
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C_BaseEntity* CClientEntityList::GetBaseEntityFromHandle( ClientEntityHandle_t hEnt )
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{
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IClientUnknown *pEnt = GetClientUnknownFromHandle( hEnt );
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return pEnt ? pEnt->GetBaseEntity() : 0;
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}
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ICollideable* CClientEntityList::GetCollideableFromHandle( ClientEntityHandle_t hEnt )
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{
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IClientUnknown *pEnt = GetClientUnknownFromHandle( hEnt );
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return pEnt ? pEnt->GetCollideable() : 0;
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}
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IClientThinkable* CClientEntityList::GetClientThinkableFromHandle( ClientEntityHandle_t hEnt )
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{
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IClientUnknown *pEnt = GetClientUnknownFromHandle( hEnt );
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return pEnt ? pEnt->GetClientThinkable() : 0;
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}
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void CClientEntityList::AddPVSNotifier( IClientUnknown *pUnknown )
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{
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IClientRenderable *pRen = pUnknown->GetClientRenderable();
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if ( pRen )
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{
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IPVSNotify *pNotify = pRen->GetPVSNotifyInterface();
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if ( pNotify )
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{
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unsigned short index = m_PVSNotifyInfos.AddToTail();
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CPVSNotifyInfo *pInfo = &m_PVSNotifyInfos[index];
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pInfo->m_pNotify = pNotify;
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pInfo->m_pRenderable = pRen;
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pInfo->m_InPVSStatus = 0;
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pInfo->m_PVSNotifiersLink = index;
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m_PVSNotifierMap.Insert( pUnknown, index );
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}
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}
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}
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void CClientEntityList::RemovePVSNotifier( IClientUnknown *pUnknown )
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{
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IClientRenderable *pRenderable = pUnknown->GetClientRenderable();
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if ( pRenderable )
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{
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IPVSNotify *pNotify = pRenderable->GetPVSNotifyInterface();
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if ( pNotify )
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{
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unsigned short index = m_PVSNotifierMap.Find( pUnknown );
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if ( !m_PVSNotifierMap.IsValidIndex( index ) )
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{
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Warning( "PVS notifier not in m_PVSNotifierMap\n" );
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Assert( false );
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return;
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}
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unsigned short indexIntoPVSNotifyInfos = m_PVSNotifierMap[index];
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Assert( m_PVSNotifyInfos[indexIntoPVSNotifyInfos].m_pNotify == pNotify );
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Assert( m_PVSNotifyInfos[indexIntoPVSNotifyInfos].m_pRenderable == pRenderable );
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m_PVSNotifyInfos.Remove( indexIntoPVSNotifyInfos );
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m_PVSNotifierMap.RemoveAt( index );
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return;
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}
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}
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// If it didn't report itself as a notifier, let's hope it's not in the notifier list now
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// (which would mean that it reported itself as a notifier earlier, but not now).
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#ifdef _DEBUG
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unsigned short index = m_PVSNotifierMap.Find( pUnknown );
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Assert( !m_PVSNotifierMap.IsValidIndex( index ) );
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#endif
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}
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void CClientEntityList::AddListenerEntity( IClientEntityListener *pListener )
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{
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if ( m_entityListeners.Find( pListener ) >= 0 )
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{
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AssertMsg( 0, "Can't add listeners multiple times\n" );
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return;
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}
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m_entityListeners.AddToTail( pListener );
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}
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void CClientEntityList::RemoveListenerEntity( IClientEntityListener *pListener )
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{
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m_entityListeners.FindAndRemove( pListener );
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}
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void CClientEntityList::OnAddEntity( IHandleEntity *pEnt, CBaseHandle handle )
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{
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int entnum = handle.GetEntryIndex();
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EntityCacheInfo_t *pCache = &m_EntityCacheInfo[entnum];
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if ( entnum >= 0 && entnum < MAX_EDICTS )
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{
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// Update our counters.
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m_iNumServerEnts++;
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if ( entnum > m_iMaxUsedServerIndex )
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{
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m_iMaxUsedServerIndex = entnum;
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}
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// Cache its networkable pointer.
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Assert( dynamic_cast< IClientUnknown* >( pEnt ) );
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Assert( ((IClientUnknown*)pEnt)->GetClientNetworkable() ); // Server entities should all be networkable.
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pCache->m_pNetworkable = ((IClientUnknown*)pEnt)->GetClientNetworkable();
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}
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IClientUnknown *pUnknown = (IClientUnknown*)pEnt;
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// If this thing wants PVS notifications, hook it up.
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AddPVSNotifier( pUnknown );
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// Store it in a special list for fast iteration if it's a C_BaseEntity.
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C_BaseEntity *pBaseEntity = pUnknown->GetBaseEntity();
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if ( pBaseEntity )
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{
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pCache->m_BaseEntitiesIndex = m_BaseEntities.AddToTail( pBaseEntity );
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if ( pBaseEntity->ObjectCaps() & FCAP_SAVE_NON_NETWORKABLE )
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{
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m_iNumClientNonNetworkable++;
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}
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//DevMsg(2,"Created %s\n", pBaseEnt->GetClassname() );
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for ( int i = m_entityListeners.Count()-1; i >= 0; i-- )
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{
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m_entityListeners[i]->OnEntityCreated( pBaseEntity );
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}
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}
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else
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{
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pCache->m_BaseEntitiesIndex = m_BaseEntities.InvalidIndex();
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}
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}
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#if defined( STAGING_ONLY )
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// Defined in tier1 / interface.cpp for Windows and native for POSIX platforms.
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extern "C" int backtrace( void **buffer, int size );
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static struct
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{
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int entnum;
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float time;
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C_BaseEntity *pBaseEntity;
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void *backtrace_addrs[ 16 ];
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} g_RemoveEntityBacktraces[ 1024 ];
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static uint32 g_RemoveEntityBacktracesIndex = 0;
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static void OnRemoveEntityBacktraceHook( int entnum, C_BaseEntity *pBaseEntity )
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{
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int index = g_RemoveEntityBacktracesIndex++;
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if ( g_RemoveEntityBacktracesIndex >= ARRAYSIZE( g_RemoveEntityBacktraces ) )
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g_RemoveEntityBacktracesIndex = 0;
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g_RemoveEntityBacktraces[ index ].entnum = entnum;
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g_RemoveEntityBacktraces[ index ].time = gpGlobals->curtime;
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g_RemoveEntityBacktraces[ index ].pBaseEntity = pBaseEntity;
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memset( g_RemoveEntityBacktraces[ index ].backtrace_addrs, 0, sizeof( g_RemoveEntityBacktraces[ index ].backtrace_addrs ) );
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backtrace( g_RemoveEntityBacktraces[ index ].backtrace_addrs, ARRAYSIZE( g_RemoveEntityBacktraces[ index ].backtrace_addrs ) );
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}
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// Should help us track down CL_PreserveExistingEntity Host_Error() issues:
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// 1. Set cl_removeentity_backtrace_capture to 1.
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// 2. When error hits, run "cl_removeentity_backtrace_dump [entnum]".
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// 3. In debugger, track down what functions the spewed addresses refer to.
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static ConVar cl_removeentity_backtrace_capture( "cl_removeentity_backtrace_capture", "0", 0,
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"For debugging. Capture backtraces for CClientEntityList::OnRemoveEntity calls." );
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CON_COMMAND( cl_removeentity_backtrace_dump, "Dump backtraces for client OnRemoveEntity calls." )
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{
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if ( !cl_removeentity_backtrace_capture.GetBool() )
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{
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Msg( "cl_removeentity_backtrace_dump error: cl_removeentity_backtrace_capture not enabled. Backtraces not captured.\n" );
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return;
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}
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int entnum = ( args.ArgC() >= 2 ) ? atoi( args[ 1 ] ) : -1;
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for ( int i = 0; i < ARRAYSIZE( g_RemoveEntityBacktraces ); i++ )
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{
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if ( g_RemoveEntityBacktraces[ i ].time &&
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( entnum == -1 || g_RemoveEntityBacktraces[ i ].entnum == entnum ) )
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{
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Msg( "%d: time:%.2f pBaseEntity:%p\n", g_RemoveEntityBacktraces[i].entnum,
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g_RemoveEntityBacktraces[ i ].time, g_RemoveEntityBacktraces[ i ].pBaseEntity );
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for ( int j = 0; j < ARRAYSIZE( g_RemoveEntityBacktraces[ i ].backtrace_addrs ); j++ )
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{
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Msg( " %p\n", g_RemoveEntityBacktraces[ i ].backtrace_addrs[ j ] );
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}
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}
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}
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}
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#endif // STAGING_ONLY
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void CClientEntityList::OnRemoveEntity( IHandleEntity *pEnt, CBaseHandle handle )
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{
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int entnum = handle.GetEntryIndex();
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EntityCacheInfo_t *pCache = &m_EntityCacheInfo[entnum];
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if ( entnum >= 0 && entnum < MAX_EDICTS )
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{
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// This is a networkable ent. Clear out our cache info for it.
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pCache->m_pNetworkable = NULL;
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m_iNumServerEnts--;
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if ( entnum >= m_iMaxUsedServerIndex )
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{
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RecomputeHighestEntityUsed();
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}
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}
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IClientUnknown *pUnknown = (IClientUnknown*)pEnt;
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// If this is a PVS notifier, remove it.
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RemovePVSNotifier( pUnknown );
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C_BaseEntity *pBaseEntity = pUnknown->GetBaseEntity();
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#if defined( STAGING_ONLY )
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if ( cl_removeentity_backtrace_capture.GetBool() )
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{
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OnRemoveEntityBacktraceHook( entnum, pBaseEntity );
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}
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#endif // STAGING_ONLY
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if ( pBaseEntity )
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{
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if ( pBaseEntity->ObjectCaps() & FCAP_SAVE_NON_NETWORKABLE )
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{
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m_iNumClientNonNetworkable--;
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}
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//DevMsg(2,"Deleted %s\n", pBaseEnt->GetClassname() );
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for ( int i = m_entityListeners.Count()-1; i >= 0; i-- )
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{
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m_entityListeners[i]->OnEntityDeleted( pBaseEntity );
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}
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}
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if ( pCache->m_BaseEntitiesIndex != m_BaseEntities.InvalidIndex() )
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m_BaseEntities.Remove( pCache->m_BaseEntitiesIndex );
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pCache->m_BaseEntitiesIndex = m_BaseEntities.InvalidIndex();
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}
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// Use this to iterate over all the C_BaseEntities.
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C_BaseEntity* CClientEntityList::FirstBaseEntity() const
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{
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const CEntInfo *pList = FirstEntInfo();
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while ( pList )
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{
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if ( pList->m_pEntity )
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{
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IClientUnknown *pUnk = static_cast<IClientUnknown*>( pList->m_pEntity );
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C_BaseEntity *pRet = pUnk->GetBaseEntity();
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if ( pRet )
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return pRet;
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}
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pList = pList->m_pNext;
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}
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return NULL;
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}
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C_BaseEntity* CClientEntityList::NextBaseEntity( C_BaseEntity *pEnt ) const
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{
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if ( pEnt == NULL )
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return FirstBaseEntity();
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// Run through the list until we get a C_BaseEntity.
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const CEntInfo *pList = GetEntInfoPtr( pEnt->GetRefEHandle() );
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if ( pList )
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{
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pList = NextEntInfo(pList);
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}
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while ( pList )
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{
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if ( pList->m_pEntity )
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{
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IClientUnknown *pUnk = static_cast<IClientUnknown*>( pList->m_pEntity );
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C_BaseEntity *pRet = pUnk->GetBaseEntity();
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if ( pRet )
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return pRet;
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}
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pList = pList->m_pNext;
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}
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return NULL;
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}
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// -------------------------------------------------------------------------------------------------- //
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// C_AllBaseEntityIterator
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// -------------------------------------------------------------------------------------------------- //
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C_AllBaseEntityIterator::C_AllBaseEntityIterator()
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{
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Restart();
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}
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void C_AllBaseEntityIterator::Restart()
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{
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m_CurBaseEntity = ClientEntityList().m_BaseEntities.Head();
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}
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C_BaseEntity* C_AllBaseEntityIterator::Next()
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{
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if ( m_CurBaseEntity == ClientEntityList().m_BaseEntities.InvalidIndex() )
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return NULL;
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C_BaseEntity *pRet = ClientEntityList().m_BaseEntities[m_CurBaseEntity];
|
|
m_CurBaseEntity = ClientEntityList().m_BaseEntities.Next( m_CurBaseEntity );
|
|
return pRet;
|
|
}
|
|
|
|
|
|
// -------------------------------------------------------------------------------------------------- //
|
|
// C_BaseEntityIterator
|
|
// -------------------------------------------------------------------------------------------------- //
|
|
C_BaseEntityIterator::C_BaseEntityIterator()
|
|
{
|
|
Restart();
|
|
}
|
|
|
|
void C_BaseEntityIterator::Restart()
|
|
{
|
|
m_CurBaseEntity = ClientEntityList().m_BaseEntities.Head();
|
|
}
|
|
|
|
C_BaseEntity* C_BaseEntityIterator::Next()
|
|
{
|
|
// Skip dormant entities
|
|
while ( m_CurBaseEntity != ClientEntityList().m_BaseEntities.InvalidIndex() )
|
|
{
|
|
C_BaseEntity *pRet = ClientEntityList().m_BaseEntities[m_CurBaseEntity];
|
|
m_CurBaseEntity = ClientEntityList().m_BaseEntities.Next( m_CurBaseEntity );
|
|
|
|
if (!pRet->IsDormant())
|
|
return pRet;
|
|
}
|
|
|
|
return NULL;
|
|
}
|