/*

Open Asset Import Library (assimp)

----------------------------------------------------------------------

Copyright (c) 2006-2025, 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 3DSExporter.h

 * 3DS Exporter Main Header

 */

#ifndef AI_3DSEXPORTER_H_INC

#define AI_3DSEXPORTER_H_INC

#include <map>

#include <memory>

#include <assimp/StreamWriter.h>

#include <assimp/material.h>

struct aiScene;

struct aiNode;

struct aiMaterial;

struct aiMesh;

namespace Assimp {

// ------------------------------------------------------------------------------------------------

/**

 *  @brief  Helper class to export a given scene to a 3DS file.

 */

// ------------------------------------------------------------------------------------------------

class Discreet3DSExporter final {

public:

    Discreet3DSExporter(std::shared_ptr<IOStream> &outfile, const aiScene* pScene);

    ~Discreet3DSExporter() = default;

private:

    void WriteMeshes();

    void WriteMaterials();

    bool WriteTexture(const aiMaterial& mat, aiTextureType type, uint16_t chunk_flags);

    void WriteFaceMaterialChunk(const aiMesh& mesh);

    int WriteHierarchy(const aiNode& node, int level, int sibling_level);

    void WriteString(const std::string& s);

    void WriteString(const aiString& s);

    void WriteColor(const aiColor3D& color);

    void WritePercentChunk(float f);

    void WritePercentChunk(double f);

private:

    const aiScene* const scene;

    StreamWriterLE writer;

    std::map<const aiNode*, aiMatrix4x4> trafos;

    using MeshesByNodeMap = std::multimap<const aiNode*, unsigned int>;

    MeshesByNodeMap meshes;

};

} // Namespace Assimp

#endif // AI_3DSEXPORTER_H_INC