//******************************************************************************
//                            (above is 80 chars long)
// VoxLimitMCAExtractor.h
//
// FixMe:
// 1> Lock the grid volume to be stepped over for reading.
// 2> Provide a reset(GridBox&) member func.
//
// Copyright (C) 2000 by Andrew H. Cox. All Rights Reserved.
//
#if defined(_MSC_VER)
#pragma once
#pragma warning( disable : 4786 )
#pragma intrinsic( abs )
#endif // defined(_MSC_VER)
#if !defined(VoxLimitMCAExtractor_h__1F9DB2E1_59E9_11D4_81A8_525400DC8C30__INCLUDED_)
#define VoxLimitMCAExtractor_h__1F9DB2E1_59E9_11D4_81A8_525400DC8C30__INCLUDED_
#include <vector>
#include "VoxI_IndexedTriSetBuilder.h"

namespace Vox_1F9D{
        //typedef std::vector<Vertex*> VertexPtrVector;

    //******************************************************************************
    class LimitMCAExtractor {
        Grid& grid_;
        VertIndex& index_;
    public:
        LimitMCAExtractor(Grid& grid, VertIndex& index)
        :
            grid_(grid), index_(index)
        {}
        void extract (
            const Word_32 dest_index_stamp,
            const Word_32 position_stamp,
            const GridBox& bbox,
            IndexedTriSetBuilderI& builder,
            VertexPtrVector& out_verts);
    };

    //******************************************************************************
    // GetDestIndex
    //
    // Functor which maps from a GridPoint to an index in the generated indexed tri
    // set. It also submits it to the indexed tri set builder, from which it
    // retreives the corresponding index for storage in the VertIndex and to be
    // returned to the caller.
    // Each Vertex is also pushed onto the output list as well.
    class GetDestIndex {
    public:
        GetDestIndex(
            const Word_32 dest_index_stamp,
            const Word_32 position_stamp,
            VertIndex& vertexes,
            IndexedTriSetBuilderI& builder,
            VertexPtrVector& out_verts)
        :
            voxel_level_(vertexes.vertex_level()),
            dest_index_stamp_(dest_index_stamp),
            position_stamp_(position_stamp),
            vertexes_(vertexes),
            builder_(builder),
            out_verts_(out_verts)
        {}
        Word_32 operator () (const GridPoint& far_corner, unsigned corner_index);

    private:
        const Word_32 voxel_level_;
        const Word_32 dest_index_stamp_;
        const Word_32 position_stamp_;
        VertIndex& vertexes_;
        IndexedTriSetBuilderI& builder_;
        VertexPtrVector& out_verts_;
    };

} // namespace Vox_1F9D

#endif // VoxLimitMCAExtractor_h__1F9DB2E1_59E9_11D4_81A8_525400DC8C30__INCLUDED_