mirror of
https://github.com/alliedmodders/hl2sdk.git
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309 lines
9.1 KiB
C++
309 lines
9.1 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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// $Date: $
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// $NoKeywords: $
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//===========================================================================//
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#if !defined( CLIENTENTITYLIST_H )
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#define CLIENTENTITYLIST_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "tier0/dbg.h"
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#include "icliententitylist.h"
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#include "iclientunknown.h"
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#include "utllinkedlist.h"
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#include "utlvector.h"
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#include "icliententityinternal.h"
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#include "ispatialpartition.h"
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#include "cdll_util.h"
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#include "entitylist_base.h"
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#include "utlmap.h"
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class C_Beam;
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class C_BaseViewModel;
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class C_BaseEntity;
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#define INPVS_YES 0x0001 // The entity thinks it's in the PVS.
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#define INPVS_THISFRAME 0x0002 // Accumulated as different views are rendered during the frame and used to notify the entity if
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// it is not in the PVS anymore (at the end of the frame).
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#define INPVS_NEEDSNOTIFY 0x0004 // The entity thinks it's in the PVS.
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class IClientEntityListener;
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abstract_class C_BaseEntityClassList
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{
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public:
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C_BaseEntityClassList();
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~C_BaseEntityClassList();
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virtual void LevelShutdown() = 0;
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C_BaseEntityClassList *m_pNextClassList;
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};
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template< class T >
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class C_EntityClassList : public C_BaseEntityClassList
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{
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public:
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virtual void LevelShutdown() { m_pClassList = NULL; }
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void Insert( T *pEntity )
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{
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pEntity->m_pNext = m_pClassList;
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m_pClassList = pEntity;
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}
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void Remove( T *pEntity )
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{
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T **pPrev = &m_pClassList;
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T *pCur = *pPrev;
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while ( pCur )
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{
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if ( pCur == pEntity )
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{
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*pPrev = pCur->m_pNext;
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return;
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}
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pPrev = &pCur->m_pNext;
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pCur = *pPrev;
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}
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}
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static T *m_pClassList;
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};
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// Maximum size of entity list
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#define INVALID_CLIENTENTITY_HANDLE CBaseHandle( INVALID_EHANDLE_INDEX )
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//
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// This is the IClientEntityList implemenation. It serves two functions:
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//
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// 1. It converts server entity indices into IClientNetworkables for the engine.
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//
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// 2. It provides a place to store IClientUnknowns and gives out ClientEntityHandle_t's
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// so they can be indexed and retreived. For example, this is how static props are referenced
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// by the spatial partition manager - it doesn't know what is being inserted, so it's
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// given ClientEntityHandle_t's, and the handlers for spatial partition callbacks can
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// use the client entity list to look them up and check for supported interfaces.
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//
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class CClientEntityList : public CBaseEntityList, public IClientEntityList
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{
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friend class C_BaseEntityIterator;
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friend class C_AllBaseEntityIterator;
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public:
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// Constructor, destructor
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CClientEntityList( void );
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virtual ~CClientEntityList( void );
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void Release(); // clears everything and releases entities
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// Implement IClientEntityList
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public:
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virtual IClientNetworkable* GetClientNetworkable( int entnum );
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virtual IClientEntity* GetClientEntity( int entnum );
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virtual int NumberOfEntities( bool bIncludeNonNetworkable = false );
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virtual IClientUnknown* GetClientUnknownFromHandle( ClientEntityHandle_t hEnt );
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virtual IClientNetworkable* GetClientNetworkableFromHandle( ClientEntityHandle_t hEnt );
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virtual IClientEntity* GetClientEntityFromHandle( ClientEntityHandle_t hEnt );
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virtual int GetHighestEntityIndex( void );
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virtual void SetMaxEntities( int maxents );
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virtual int GetMaxEntities( );
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// CBaseEntityList overrides.
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protected:
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virtual void OnAddEntity( IHandleEntity *pEnt, CBaseHandle handle );
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virtual void OnRemoveEntity( IHandleEntity *pEnt, CBaseHandle handle );
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// Internal to client DLL.
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public:
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// All methods of accessing specialized IClientUnknown's go through here.
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IClientUnknown* GetListedEntity( int entnum );
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// Simple wrappers for convenience..
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C_BaseEntity* GetBaseEntity( int entnum );
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ICollideable* GetCollideable( int entnum );
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IClientRenderable* GetClientRenderableFromHandle( ClientEntityHandle_t hEnt );
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C_BaseEntity* GetBaseEntityFromHandle( ClientEntityHandle_t hEnt );
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ICollideable* GetCollideableFromHandle( ClientEntityHandle_t hEnt );
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IClientThinkable* GetClientThinkableFromHandle( ClientEntityHandle_t hEnt );
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// Convenience methods to convert between entindex + ClientEntityHandle_t
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ClientEntityHandle_t EntIndexToHandle( int entnum );
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int HandleToEntIndex( ClientEntityHandle_t handle );
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// Is a handle valid?
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bool IsHandleValid( ClientEntityHandle_t handle ) const;
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// For backwards compatibility...
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C_BaseEntity* GetEnt( int entnum ) { return GetBaseEntity( entnum ); }
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void RecomputeHighestEntityUsed( void );
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// Use this to iterate over all the C_BaseEntities.
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C_BaseEntity* FirstBaseEntity() const;
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C_BaseEntity* NextBaseEntity( C_BaseEntity *pEnt ) const;
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class CPVSNotifyInfo
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{
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public:
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IPVSNotify *m_pNotify;
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IClientRenderable *m_pRenderable;
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unsigned char m_InPVSStatus; // Combination of the INPVS_ flags.
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unsigned short m_PVSNotifiersLink; // Into m_PVSNotifyInfos.
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};
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// Get the list of all PVS notifiers.
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CUtlLinkedList<CPVSNotifyInfo,unsigned short>& GetPVSNotifiers();
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CUtlVector<IClientEntityListener *> m_entityListeners;
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// add a class that gets notified of entity events
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void AddListenerEntity( IClientEntityListener *pListener );
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void RemoveListenerEntity( IClientEntityListener *pListener );
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void NotifyCreateEntity( C_BaseEntity *pEnt );
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void NotifyRemoveEntity( C_BaseEntity *pEnt );
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private:
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// Cached info for networked entities.
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struct EntityCacheInfo_t
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{
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// Cached off because GetClientNetworkable is called a *lot*
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IClientNetworkable *m_pNetworkable;
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unsigned short m_BaseEntitiesIndex; // Index into m_BaseEntities (or m_BaseEntities.InvalidIndex() if none).
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};
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// Current count
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int m_iNumServerEnts;
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// Max allowed
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int m_iMaxServerEnts;
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int m_iNumClientNonNetworkable;
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// Current last used slot
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int m_iMaxUsedServerIndex;
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// This holds fast lookups for special edicts.
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EntityCacheInfo_t m_EntityCacheInfo[NUM_ENT_ENTRIES];
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// For fast iteration.
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CUtlLinkedList<C_BaseEntity*, unsigned short> m_BaseEntities;
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private:
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void AddPVSNotifier( IClientUnknown *pUnknown );
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void RemovePVSNotifier( IClientUnknown *pUnknown );
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// These entities want to know when they enter and leave the PVS (server entities
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// already can get the equivalent notification with NotifyShouldTransmit, but client
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// entities have to get it this way).
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CUtlLinkedList<CPVSNotifyInfo,unsigned short> m_PVSNotifyInfos;
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CUtlMap<IClientUnknown*,unsigned short,unsigned short> m_PVSNotifierMap; // Maps IClientUnknowns to indices into m_PVSNotifyInfos.
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};
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// Use this to iterate over *all* (even dormant) the C_BaseEntities in the client entity list.
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class C_AllBaseEntityIterator
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{
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public:
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C_AllBaseEntityIterator();
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void Restart();
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C_BaseEntity* Next(); // keep calling this until it returns null.
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private:
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unsigned short m_CurBaseEntity;
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};
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class C_BaseEntityIterator
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{
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public:
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C_BaseEntityIterator();
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void Restart();
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C_BaseEntity* Next(); // keep calling this until it returns null.
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private:
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unsigned short m_CurBaseEntity;
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};
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//-----------------------------------------------------------------------------
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// Inline methods
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//-----------------------------------------------------------------------------
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inline bool CClientEntityList::IsHandleValid( ClientEntityHandle_t handle ) const
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{
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return handle.Get() != 0;
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}
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inline IClientUnknown* CClientEntityList::GetListedEntity( int entnum )
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{
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return (IClientUnknown*)LookupEntityByNetworkIndex( entnum );
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}
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inline IClientUnknown* CClientEntityList::GetClientUnknownFromHandle( ClientEntityHandle_t hEnt )
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{
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return (IClientUnknown*)LookupEntity( hEnt );
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}
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inline CUtlLinkedList<CClientEntityList::CPVSNotifyInfo,unsigned short>& CClientEntityList::GetPVSNotifiers()
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{
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return m_PVSNotifyInfos;
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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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inline ClientEntityHandle_t CClientEntityList::EntIndexToHandle( int entnum )
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{
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if ( entnum < -1 )
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return INVALID_EHANDLE_INDEX;
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IClientUnknown *pUnk = GetListedEntity( entnum );
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return pUnk ? pUnk->GetRefEHandle() : INVALID_EHANDLE_INDEX;
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}
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//-----------------------------------------------------------------------------
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// Returns the client entity list
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//-----------------------------------------------------------------------------
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extern CClientEntityList *cl_entitylist;
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inline CClientEntityList& ClientEntityList()
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{
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return *cl_entitylist;
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}
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// Implement this class and register with entlist to receive entity create/delete notification
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class IClientEntityListener
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{
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public:
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virtual void OnEntityCreated( C_BaseEntity *pEntity ) {};
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//virtual void OnEntitySpawned( C_BaseEntity *pEntity ) {};
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virtual void OnEntityDeleted( C_BaseEntity *pEntity ) {};
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};
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#endif // CLIENTENTITYLIST_H
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