/*

Open Asset Import Library (assimp)

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

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  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

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* Neither the name of the assimp team, nor the names of its

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*/

/** @file   MD5Loader.h

 *  @brief Definition of the .MD5 importer class.

 *  http://www.modwiki.net/wiki/MD5_(file_format)

*/

#pragma once

#ifndef AI_MD5LOADER_H_INCLUDED

#define AI_MD5LOADER_H_INCLUDED

#include "MD5Parser.h"

#include <assimp/BaseImporter.h>

#include <assimp/types.h>

struct aiNode;

struct aiNodeAnim;

namespace Assimp {

class IOStream;

using namespace Assimp::MD5;

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

/** Importer class for the MD5 file format

*/

class MD5Importer : public BaseImporter {

public:

    MD5Importer();

    ~MD5Importer() override = default;

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

    /** 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;

protected:

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

    /** Return importer meta information.

     * See #BaseImporter::GetInfo for the details

     */

    const aiImporterDesc *GetInfo() 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;

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

    /** 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;

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

    /** Load a *.MD5MESH file.

     */

    void LoadMD5MeshFile();

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

    /** Load a *.MD5ANIM file.

     */

    void LoadMD5AnimFile();

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

    /** Load a *.MD5CAMERA file.

     */

    void LoadMD5CameraFile();

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

    /** Construct node hierarchy from a given MD5ANIM

     *  @param iParentID Current parent ID

     *  @param piParent Parent node to attach to

     *  @param bones Input bones

     *  @param node_anims Generated node animations

    */

    void AttachChilds_Anim(int iParentID, aiNode *piParent,

            AnimBoneArray &bones, const aiNodeAnim **node_anims);

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

    /** Construct node hierarchy from a given MD5MESH

     *  @param iParentID Current parent ID

     *  @param piParent Parent node to attach to

     *  @param bones Input bones

    */

    void AttachChilds_Mesh(int iParentID, aiNode *piParent, BoneArray &bones);

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

    /** Build unique vertex buffers from a given MD5ANIM

     *  @param meshSrc Input data

     */

    void MakeDataUnique(MD5::MeshDesc &meshSrc);

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

    /** Load the contents of a specific file into memory and

     *  allocates a buffer to keep it.

     *

     *  mBuffer is modified to point to this buffer.

     *  @param pFile File stream to be read

    */

    void LoadFileIntoMemory(IOStream *pFile);

    void UnloadFileFromMemory();

    /** IOSystem to be used to access files */

    IOSystem *mIOHandler;

    /** Path to the file, excluding the file extension but

        with the dot */

    std::string mFile;

    /** Buffer to hold the loaded file */

    char *mBuffer;

    /** Size of the file */

    unsigned int mFileSize;

    /** Current line number. For debugging purposes */

    unsigned int mLineNumber;

    /** Scene to be filled */

    aiScene *mScene;

    /** true if a MD5MESH file has already been parsed */

    bool mHadMD5Mesh;

    /** true if a MD5ANIM file has already been parsed */

    bool mHadMD5Anim;

    /** true if a MD5CAMERA file has already been parsed */

    bool mHadMD5Camera;

    /** configuration option: prevent anim autoload */

    bool mCconfigNoAutoLoad;

};

} // end of namespace Assimp

#endif // AI_3DSIMPORTER_H_INC