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Diffstat (limited to 'extern/recastnavigation/BlenderNavMesh/NavMeshConversion.h')
-rw-r--r-- | extern/recastnavigation/BlenderNavMesh/NavMeshConversion.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/extern/recastnavigation/BlenderNavMesh/NavMeshConversion.h b/extern/recastnavigation/BlenderNavMesh/NavMeshConversion.h new file mode 100644 index 00000000000..5a30d927c7f --- /dev/null +++ b/extern/recastnavigation/BlenderNavMesh/NavMeshConversion.h @@ -0,0 +1,98 @@ +/** +* $Id$ +* +* ***** BEGIN GPL LICENSE BLOCK ***** +* +* This program is free software; you can redistribute it and/or +* modify it under the terms of the GNU General Public License +* as published by the Free Software Foundation; either version 2 +* of the License, or (at your option) any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program; if not, write to the Free Software Foundation, +* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +* +* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. +* All rights reserved. +* +* The Original Code is: all of this file. +* +* Contributor(s): none yet. +* +* ***** END GPL LICENSE BLOCK ***** +*/ + +#ifndef NAVMESH_CONVERSION_H +#define NAVMESH_CONVERSION_H + +#include <math.h> +#include "Recast.h" +extern "C"{ +#include "DNA_meshdata_types.h" +#include "BKE_cdderivedmesh.h" +} + +bool buildNavMeshDataByDerivedMesh(DerivedMesh *dm, int& vertsPerPoly, + int &nverts, float *&verts, + int &ndtris, unsigned short *&dtris, + int& npolys, unsigned short *&dmeshes, + unsigned short*& polys, int *&dtrisToPolysMap, + int *&dtrisToTrisMap, int *&trisToFacesMap); + +bool buildRawVertIndicesData(DerivedMesh* dm, int &nverts, float *&verts, + int &ntris, unsigned short *&tris, int *&trisToFacesMap, + int *&recastData); + +bool buildNavMeshData(const int nverts, const float* verts, + const int ntris, const unsigned short *tris, + const int* recastData, const int* trisToFacesMap, + int &ndtris, unsigned short *&dtris, + int &npolys, unsigned short *&dmeshes, unsigned short *&polys, + int &vertsPerPoly, int *&dtrisToPolysMap, int *&dtrisToTrisMap); + +bool buildPolygonsByDetailedMeshes(const int vertsPerPoly, const int npolys, + unsigned short* polys, const unsigned short* dmeshes, + const float* verts, const unsigned short* dtris, + const int* dtrisToPolysMap); + +int polyNumVerts(const unsigned short* p, const int vertsPerPoly); +bool polyIsConvex(const unsigned short* p, const int vertsPerPoly, const float* verts); +int polyFindVertex(const unsigned short* p, const int vertsPerPoly, unsigned short vertexIdx); +float distPointToSegmentSq(const float* point, const float* a, const float* b); + + +inline int abs2(int a) +{ + return a>=0 ? a: -a; +} + +inline int bit(int a, int b) +{ + return (a & (1 << b)) >> b; +} + +inline void intToCol(int i, float* col) +{ + int r = bit(i, 0) + bit(i, 3) * 2 + 1; + int g = bit(i, 1) + bit(i, 4) * 2 + 1; + int b = bit(i, 2) + bit(i, 5) * 2 + 1; + col[0] = 1 - r*63.0f/255.0f; + col[1] = 1 - g*63.0f/255.0f; + col[2] = 1 - b*63.0f/255.0f; +} + +inline float area2(const float* a, const float* b, const float* c) +{ + return (b[0] - a[0]) * (c[2] - a[2]) - (c[0] - a[0]) * (b[2] - a[2]); +} +inline bool left(const float* a, const float* b, const float* c) +{ + return area2(a, b, c) < 0; +} + +#endif //NAVMESH_CONVERSION_H
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