1

game/client/classmap.cpp

@@ -0,0 +1,137 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+#include "cbase.h"
+#include "iclassmap.h"
+#include "utldict.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+class classentry_t
+{
+public:
+	classentry_t()
+	{
+		mapname[ 0 ] = 0;
+		factory = 0;
+		size = -1;
+	}
+
+	char const *GetMapName() const
+	{
+		return mapname;
+	}
+
+	void SetMapName( char const *newname )
+	{
+		Q_strncpy( mapname, newname, sizeof( mapname ) );
+	}
+
+	DISPATCHFUNCTION	factory;
+	int					size;
+private:
+	char				mapname[ 40 ];
+};
+
+class CClassMap : public IClassMap
+{
+public:
+	virtual void			Add( const char *mapname, const char *classname, int size, DISPATCHFUNCTION factory /*= 0*/ );
+	virtual const char		*Lookup( const char *classname );
+	virtual C_BaseEntity	*CreateEntity( const char *mapname );
+	virtual int				GetClassSize( const char *classname );
+
+private:
+	CUtlDict< classentry_t, unsigned short > m_ClassDict;
+};
+
+IClassMap& GetClassMap( void )
+{
+	static CClassMap g_Classmap;
+	return g_Classmap;
+}
+
+void CClassMap::Add( const char *mapname, const char *classname, int size, DISPATCHFUNCTION factory = 0 )
+{
+	const char *map = Lookup( classname );
+	if ( map && !Q_strcasecmp( mapname, map ) )
+		return;
+
+	if ( map )
+	{
+		int index = m_ClassDict.Find( classname );
+		Assert( index != m_ClassDict.InvalidIndex() );
+		m_ClassDict.RemoveAt( index );
+	}
+
+	classentry_t element;
+	element.SetMapName( mapname );
+	element.factory = factory;
+	element.size = size;
+	m_ClassDict.Insert( classname, element );
+}
+
+const char *CClassMap::Lookup( const char *classname )
+{
+	unsigned short index;
+	static classentry_t lookup; 
+
+	index = m_ClassDict.Find( classname );
+	if ( index == m_ClassDict.InvalidIndex() )
+		return NULL;
+
+	lookup = m_ClassDict.Element( index );
+	return lookup.GetMapName();
+}
+
+C_BaseEntity *CClassMap::CreateEntity( const char *mapname )
+{
+	int c = m_ClassDict.Count();
+	int i;
+
+	for ( i = 0; i < c; i++ )
+	{
+		classentry_t *lookup = &m_ClassDict[ i ];
+		if ( !lookup )
+			continue;
+
+		if ( Q_stricmp( lookup->GetMapName(), mapname ) )
+			continue;
+
+		if ( !lookup->factory )
+		{
+#if defined( _DEBUG )
+			Msg( "No factory for %s/%s\n", lookup->GetMapName(), m_ClassDict.GetElementName( i ) );
+#endif
+			continue;
+		}
+
+		return ( *lookup->factory )();
+	}
+
+	return NULL;
+}
+
+int CClassMap::GetClassSize( const char *classname )
+{
+	int c = m_ClassDict.Count();
+	int i;
+
+	for ( i = 0; i < c; i++ )
+	{
+		classentry_t *lookup = &m_ClassDict[ i ];
+		if ( !lookup )
+			continue;
+
+		if ( Q_strcmp( lookup->GetMapName(), classname ) )
+			continue;
+
+		return lookup->size;
+	}
+
+	return -1;
+}