[11902] Import Recast Navigation

Import Recast Navigation as third party dependency
Credits go to Mikko Mononen memon at inside dot org

dep/recastnavigation/RecastDemo/Include/Sample_TileMesh.h

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+//
+// Copyright (c) 2009-2010 Mikko Mononen memon@inside.org
+//
+// 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 RECASTSAMPLETILEMESH_H
+#define RECASTSAMPLETILEMESH_H
+
+#include "Sample.h"
+#include "DetourNavMesh.h"
+#include "Recast.h"
+#include "ChunkyTriMesh.h"
+
+class Sample_TileMesh : public Sample
+{
+protected:
+	bool m_keepInterResults;
+	bool m_buildAll;
+	float m_totalBuildTimeMs;
+	bool m_drawPortals;
+
+	unsigned char* m_triareas;
+	rcHeightfield* m_solid;
+	rcCompactHeightfield* m_chf;
+	rcContourSet* m_cset;
+	rcPolyMesh* m_pmesh;
+	rcPolyMeshDetail* m_dmesh;
+	rcConfig m_cfg;	
+	
+	enum DrawMode
+	{
+		DRAWMODE_NAVMESH,
+		DRAWMODE_NAVMESH_TRANS,
+		DRAWMODE_NAVMESH_BVTREE,
+		DRAWMODE_NAVMESH_NODES,
+		DRAWMODE_NAVMESH_PORTALS,
+		DRAWMODE_NAVMESH_INVIS,
+		DRAWMODE_MESH,
+		DRAWMODE_VOXELS,
+		DRAWMODE_VOXELS_WALKABLE,
+		DRAWMODE_COMPACT,
+		DRAWMODE_COMPACT_DISTANCE,
+		DRAWMODE_COMPACT_REGIONS,
+		DRAWMODE_REGION_CONNECTIONS,
+		DRAWMODE_RAW_CONTOURS,
+		DRAWMODE_BOTH_CONTOURS,
+		DRAWMODE_CONTOURS,
+		DRAWMODE_POLYMESH,
+		DRAWMODE_POLYMESH_DETAIL,
+		MAX_DRAWMODE
+	};
+	
+	DrawMode m_drawMode;
+	
+	int m_maxTiles;
+	int m_maxPolysPerTile;
+	float m_tileSize;
+	
+	unsigned int m_tileCol;
+	float m_tileBmin[3];
+	float m_tileBmax[3];
+	float m_tileBuildTime;
+	float m_tileMemUsage;
+	int m_tileTriCount;
+
+	unsigned char* buildTileMesh(const int tx, const int ty, const float* bmin, const float* bmax, int& dataSize);
+	
+	void cleanup();
+	
+	void saveAll(const char* path, const dtNavMesh* mesh);
+	dtNavMesh* loadAll(const char* path);
+	
+public:
+	Sample_TileMesh();
+	virtual ~Sample_TileMesh();
+	
+	virtual void handleSettings();
+	virtual void handleTools();
+	virtual void handleDebugMode();
+	virtual void handleRender();
+	virtual void handleRenderOverlay(double* proj, double* model, int* view);
+	virtual void handleMeshChanged(class InputGeom* geom);
+	virtual bool handleBuild();
+	
+	void getTilePos(const float* pos, int& tx, int& ty);
+	
+	void buildTile(const float* pos);
+	void removeTile(const float* pos);
+	void buildAllTiles();
+	void removeAllTiles();
+};
+
+
+#endif // RECASTSAMPLETILEMESH_H