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diff --git a/public/sdktoolslib/deltautils.h b/public/sdktoolslib/deltautils.h
new file mode 100644
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+++ b/public/sdktoolslib/deltautils.h
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+//============ Copyright (c) Valve Corporation, All rights reserved. ==========
+//
+//=============================================================================
+
+#ifndef DELTAUTILS_H
+#define DELTAUTILS_H
+
+
+// Valve includes
+#include "tier1/utlstring.h"
+#include "tier1/utlsymbol.h"
+#include "tier1/utlvector.h"
+
+
+//=============================================================================
+//
+//=============================================================================
+class CDeltaUtils
+{
+public:
+	enum Corrector_t
+	{
+		CT_NO_CORRECTORS,
+		CT_SINGLE_UNDERSCORE,
+		CT_DOUBLE_UNDERSCORES
+	};
+
+	enum DeltaSortForwardBackward_t
+	{
+		DS_FORWARD,
+		DS_BACKWARD
+	};
+
+	static void SplitDeltaName(
+		CUtlVector< CUtlSymbol > &splitDeltaName,
+		CUtlSymbolTable &deltaSymbolTable,
+		const CUtlString &sDeltaName,
+		Corrector_t nCorrectorType );
+
+	static void ComputeDependentDeltas(
+		CUtlVector< CUtlVector< int > > &dependentDeltaList,
+		const CUtlVector< CUtlString > &deltaList,
+		Corrector_t nCorrectorType );
+
+	static void ComputeDeltaOrder(
+		CUtlVector< int > &deltaOrder,
+		const CUtlVector< CUtlVector< int > > &dependentDeltaList,
+		DeltaSortForwardBackward_t eForwardBackward );
+
+	static void MakeDeltaVerticesAbsolute(
+		CUtlVector< CUtlVector< Vector > > &vDeltaVerticesList,
+		const CUtlVector< CUtlString > &deltaList,
+		Corrector_t nCorrectorType );
+
+	static void MakeDeltaVerticesRelative(
+		CUtlVector< CUtlVector< Vector > > &vDeltaVerticesList,
+		const CUtlVector< CUtlString > &deltaList,
+		Corrector_t nCorrectorType );
+};
+
+
+#endif // DELTAUTILS_H