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diff --git a/src/mesh/assimp-master/code/AssetLib/MDC/MDCLoader.h b/src/mesh/assimp-master/code/AssetLib/MDC/MDCLoader.h
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+++ b/src/mesh/assimp-master/code/AssetLib/MDC/MDCLoader.h
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+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  MDCLoader.h
+ *  @brief Definition of the MDC importer class.
+ */
+#ifndef AI_MDCLOADER_H_INCLUDED
+#define AI_MDCLOADER_H_INCLUDED
+
+#include <assimp/types.h>
+
+#include "MDCFileData.h"
+#include <assimp/BaseImporter.h>
+#include <assimp/ByteSwapper.h>
+
+namespace Assimp {
+
+using namespace MDC;
+
+// ---------------------------------------------------------------------------
+/** Importer class to load the RtCW MDC file format
+*/
+class MDCImporter : public BaseImporter {
+public:
+    MDCImporter();
+    ~MDCImporter() override;
+
+    // -------------------------------------------------------------------
+    /** Returns whether the class can handle the format of the given file.
+    * See BaseImporter::CanRead() for details.  */
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler,
+            bool checkSig) const override;
+
+    // -------------------------------------------------------------------
+    /** Called prior to ReadFile().
+    * The function is a request to the importer to update its configuration
+    * basing on the Importer's configuration property list.
+    */
+    void SetupProperties(const Importer *pImp) override;
+
+protected:
+    // -------------------------------------------------------------------
+    /** Return importer meta information.
+     * See #BaseImporter::GetInfo for the details
+     */
+    const aiImporterDesc *GetInfo() const override;
+
+    // -------------------------------------------------------------------
+    /** Imports the given file into the given scene structure.
+    * See BaseImporter::InternReadFile() for details
+    */
+    void InternReadFile(const std::string &pFile, aiScene *pScene,
+            IOSystem *pIOHandler) override;
+
+    // -------------------------------------------------------------------
+    /** Validate the header of the file
+    */
+    void ValidateHeader();
+
+    // -------------------------------------------------------------------
+    /** Validate the header of a MDC surface
+    */
+    void ValidateSurfaceHeader(BE_NCONST MDC::Surface *pcSurf);
+
+protected:
+    /** Configuration option: frame to be loaded */
+    unsigned int configFrameID;
+
+    /** Header of the MDC file */
+    BE_NCONST MDC::Header *pcHeader;
+
+    /** Buffer to hold the loaded file */
+    unsigned char *mBuffer;
+
+    /** size of the file, in bytes */
+    unsigned int fileSize;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_3DSIMPORTER_H_INC