DetourLocalBoundary.h

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//
// Copyright (c) 2009-2010 Mikko Mononen [email protected]
//
// This software is provided 'as-is', without any express or implied
// warranty.  In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
//    claim that you wrote the original software. If you use this software
//    in a product, an acknowledgment in the product documentation would be
//    appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
//    misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//

#ifndef DETOURLOCALBOUNDARY_H
#define DETOURLOCALBOUNDARY_H

#include "DetourNavMeshQuery.h"


class dtLocalBoundary
{
        static const int MAX_LOCAL_SEGS = 8;
        static const int MAX_LOCAL_POLYS = 16;
        
        struct Segment
        {
                float s[6];     
                float d;        
        };
        
        float m_center[3];
        Segment m_segs[MAX_LOCAL_SEGS];
        int m_nsegs;
        
        dtPolyRef m_polys[MAX_LOCAL_POLYS];
        int m_npolys;

        void addSegment(const float dist, const float* seg);
        
public:
        dtLocalBoundary();
        ~dtLocalBoundary();
        
        void reset();
        
        void update(dtPolyRef ref, const float* pos, const float collisionQueryRange,
                                dtNavMeshQuery* navquery, const dtQueryFilter* filter);
        
        bool isValid(dtNavMeshQuery* navquery, const dtQueryFilter* filter);
        
        inline const float* getCenter() const { return m_center; }
        inline int getSegmentCount() const { return m_nsegs; }
        inline const float* getSegment(int i) const { return m_segs[i].s; }
};

#endif // DETOURLOCALBOUNDARY_H