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diff --git a/src/graphics/engine/modelfile.h b/src/graphics/engine/modelfile.h
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+// * This file is part of the COLOBOT source code
+// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch
+// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
+// *
+// * This program is free software: you can redistribute it and/or modify
+// * it under the terms of the GNU General Public License as published by
+// * the Free Software Foundation, either version 3 of the License, or
+// * (at your option) any later version.
+// *
+// * This program is distributed in the hope that it will be useful,
+// * but WITHOUT ANY WARRANTY; without even the implied warranty of
+// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// * GNU General Public License for more details.
+// *
+// * You should have received a copy of the GNU General Public License
+// * along with this program. If not, see  http://www.gnu.org/licenses/.
+
+// modelfile.h (aka modfile.h)
+
+#include "graphics/engine/engine.h"
+#include "graphics/core/vertex.h"
+#include "graphics/core/material.h"
+#include "math/vector.h"
+
+#include <string>
+#include <vector>
+#include <iostream>
+
+
+class CInstanceManager;
+
+
+namespace Gfx {
+
+/**
+  \struct ModelTriangle
+  \brief Triangle of a 3D model
+  */
+struct ModelTriangle
+{
+    //! 1st vertex
+    Gfx::VertexTex2  p1;
+    //! 2nd vertex
+    Gfx::VertexTex2  p2;
+    //! 3rd vertex
+    Gfx::VertexTex2  p3;
+    //! Material
+    Gfx::Material    material;
+    //! Name of 1st texture
+    std::string      tex1Name;
+    //! Name of 2nd texture
+    std::string      tex2Name;
+    //! Min LOD threshold
+    float            min;
+    //! Max LOD threshold
+    float            max;
+    //! Rendering state to be set
+    long             state;
+
+    ModelTriangle();
+};
+
+
+/**
+  \class CModelFile
+  \brief Model file reader/writer
+
+  Allows reading and writing model objects. Models are collections of ModelTriangle structs. */
+class CModelFile
+{
+public:
+    CModelFile(CInstanceManager* iMan);
+    ~CModelFile();
+
+    //! Returns the last error encountered
+    std::string GetError();
+
+    //! Reads a binary Colobot model from file
+    bool                 ReadModel(const std::string &filename, bool edit = false, bool meta = true);
+    //! Reads a binary Colobot model from stream
+    bool                 ReadModel(std::istream &stream, bool edit = false, bool meta = true);
+    //! Writes the model to Colobot binary model file
+    bool                 WriteModel(const std::string &filename);
+    //! Writes the model to Colobot binary model file
+    bool                 WriteModel(std::ostream &stream);
+
+    //! Reads a DXF model from file
+    bool                 ReadDXF(const std::string &filename, float min, float max);
+    //! Reads a DXF model from stream
+    bool                 ReadDXF(std::istream &stream, float min, float max);
+
+    //! Returns the number of triangles in model
+    int                  GetTriangleCount();
+    //! Returns the triangle vector
+    std::vector<Gfx::ModelTriangle>& GetTriangles();
+    //! Returns the height of model -- closest point to X and Z coords of \a pos
+    float                GetHeight(Math::Vector pos);
+
+    //! Mirrors the model along the Z axis
+    void                 Mirror();
+
+    //! Creates an object in the graphics engine from the model
+    bool                 CreateEngineObject(int objRank, int addState = 0);
+
+protected:
+    //! Adds a triangle to the list
+    void                 CreateTriangle(Math::Vector p1, Math::Vector p2, Math::Vector p3, float min, float max);
+
+protected:
+    CInstanceManager*    m_iMan;
+    Gfx::CEngine*        m_engine;
+
+    //! Last error
+    std::string m_error;
+
+    //! Model triangles
+    std::vector<Gfx::ModelTriangle> m_triangles;
+};
+
+}; // namespace Gfx