/*

Open Asset Import Library (assimp)

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All rights reserved.

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* Redistributions in binary form must reproduce the above

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*/

#ifndef ARMATURE_POPULATE_H_

#define ARMATURE_POPULATE_H_

#include "Common/BaseProcess.h"

#include <assimp/BaseImporter.h>

#include <vector>

#include <map>

struct aiNode;

struct aiBone;

namespace Assimp {

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

/** Armature Populate: This is a post process designed

 * To save you time when importing models into your game engines

 * This was originally designed only for fbx but will work with other formats

 * it is intended to auto populate aiBone data with armature and the aiNode

 * This is very useful when dealing with skinned meshes

 * or when dealing with many different skeletons

 * It's off by default but recommend that you try it and use it

 * It should reduce down any glue code you have in your

 * importers

 * You can contact RevoluPowered <gordon@gordonite.tech>

 * For more info about this

*/

class ASSIMP_API ArmaturePopulate final : public BaseProcess {

public:

    /// The default class constructor.

    ArmaturePopulate() = default;

    /// The class destructor.

    ~ArmaturePopulate() override = default;

    /// Overwritten, @see BaseProcess

    bool IsActive( unsigned int pFlags ) const override;

    /// Overwritten, @see BaseProcess

    void SetupProperties( const Importer* pImp ) override;

    /// Overwritten, @see BaseProcess

    void Execute( aiScene* pScene ) override;

    static aiNode *GetArmatureRoot(aiNode *bone_node,

                                      std::vector<aiBone *> &bone_list);

    static aiNode *GetNodeFromStack(const aiString &node_name,

                                       std::vector<aiNode *> &nodes);

    static void BuildNodeList(const aiNode *current_node,

                                 std::vector<aiNode *> &nodes);

    static void BuildBoneList(aiNode *current_node, const aiNode *root_node,

                                 const aiScene *scene,

                                 std::vector<aiBone *> &bones);

    static void BuildBoneStack(const aiNode *root_node,

                                  const aiScene *scene,

                                  const std::vector<aiBone *> &bones,

                                  std::map<aiBone *, aiNode *> &bone_stack,

                                  std::vector<aiNode *> &node_stack);

};

} // Namespace Assimp

#endif // SCALE_PROCESS_H_