138 lines
2.8 KiB
C++
138 lines
2.8 KiB
C++
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//========= Copyright <20> 1996-2005, 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 "iclassmap.h"
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#include "utldict.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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class classentry_t
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{
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public:
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classentry_t()
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{
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mapname[ 0 ] = 0;
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factory = 0;
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size = -1;
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}
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char const *GetMapName() const
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{
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return mapname;
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}
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void SetMapName( char const *newname )
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{
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Q_strncpy( mapname, newname, sizeof( mapname ) );
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}
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DISPATCHFUNCTION factory;
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int size;
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private:
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char mapname[ 40 ];
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};
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class CClassMap : public IClassMap
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{
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public:
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virtual void Add( const char *mapname, const char *classname, int size, DISPATCHFUNCTION factory /*= 0*/ );
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virtual const char *Lookup( const char *classname );
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virtual C_BaseEntity *CreateEntity( const char *mapname );
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virtual int GetClassSize( const char *classname );
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private:
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CUtlDict< classentry_t, unsigned short > m_ClassDict;
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};
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IClassMap& GetClassMap( void )
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{
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static CClassMap g_Classmap;
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return g_Classmap;
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}
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void CClassMap::Add( const char *mapname, const char *classname, int size, DISPATCHFUNCTION factory = 0 )
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{
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const char *map = Lookup( classname );
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if ( map && !Q_strcasecmp( mapname, map ) )
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return;
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if ( map )
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{
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int index = m_ClassDict.Find( classname );
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Assert( index != m_ClassDict.InvalidIndex() );
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m_ClassDict.RemoveAt( index );
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}
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classentry_t element;
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element.SetMapName( mapname );
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element.factory = factory;
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element.size = size;
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m_ClassDict.Insert( classname, element );
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}
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const char *CClassMap::Lookup( const char *classname )
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{
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unsigned short index;
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static classentry_t lookup;
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index = m_ClassDict.Find( classname );
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if ( index == m_ClassDict.InvalidIndex() )
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return NULL;
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lookup = m_ClassDict.Element( index );
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return lookup.GetMapName();
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}
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C_BaseEntity *CClassMap::CreateEntity( const char *mapname )
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{
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int c = m_ClassDict.Count();
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int i;
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for ( i = 0; i < c; i++ )
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{
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classentry_t *lookup = &m_ClassDict[ i ];
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if ( !lookup )
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continue;
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if ( Q_stricmp( lookup->GetMapName(), mapname ) )
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continue;
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if ( !lookup->factory )
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{
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#if defined( _DEBUG )
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Msg( "No factory for %s/%s\n", lookup->GetMapName(), m_ClassDict.GetElementName( i ) );
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#endif
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continue;
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}
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return ( *lookup->factory )();
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}
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return NULL;
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}
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int CClassMap::GetClassSize( const char *classname )
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{
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int c = m_ClassDict.Count();
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int i;
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for ( i = 0; i < c; i++ )
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{
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classentry_t *lookup = &m_ClassDict[ i ];
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if ( !lookup )
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continue;
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if ( Q_strcmp( lookup->GetMapName(), classname ) )
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continue;
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return lookup->size;
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}
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return -1;
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}
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