mirror of https://github.com/axmolengine/axmol.git
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
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//
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// Copyright (c) 2009-2010 Mikko Mononen memon@inside.org
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would be
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// appreciated but is not required.
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// 2. Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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// 3. This notice may not be removed or altered from any source distribution.
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//
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#ifndef DETOURPATHQUEUE_H
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#define DETOURPATHQUEUE_H
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#include "DetourNavMesh.h"
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#include "DetourNavMeshQuery.h"
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static const unsigned int DT_PATHQ_INVALID = 0;
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typedef unsigned int dtPathQueueRef;
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class dtPathQueue
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{
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struct PathQuery
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{
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dtPathQueueRef ref;
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/// Path find start and end location.
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float startPos[3], endPos[3];
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dtPolyRef startRef, endRef;
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/// Result.
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dtPolyRef* path;
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int npath;
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/// State.
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dtStatus status;
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int keepAlive;
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const dtQueryFilter* filter; ///< TODO: This is potentially dangerous!
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};
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static const int MAX_QUEUE = 8;
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PathQuery m_queue[MAX_QUEUE];
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dtPathQueueRef m_nextHandle;
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int m_maxPathSize;
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int m_queueHead;
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dtNavMeshQuery* m_navquery;
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void purge();
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public:
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dtPathQueue();
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~dtPathQueue();
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bool init(const int maxPathSize, const int maxSearchNodeCount, dtNavMesh* nav);
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void update(const int maxIters);
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dtPathQueueRef request(dtPolyRef startRef, dtPolyRef endRef,
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const float* startPos, const float* endPos,
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const dtQueryFilter* filter);
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dtStatus getRequestStatus(dtPathQueueRef ref) const;
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dtStatus getPathResult(dtPathQueueRef ref, dtPolyRef* path, int* pathSize, const int maxPath);
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inline const dtNavMeshQuery* getNavQuery() const { return m_navquery; }
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private:
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// Explicitly disabled copy constructor and copy assignment operator.
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dtPathQueue(const dtPathQueue&);
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dtPathQueue& operator=(const dtPathQueue&);
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};
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#endif // DETOURPATHQUEUE_H
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