1de5e2f119
- Detour Navmesh supports layers - Allow to disable Navmesh BV-tree - Added DetourTileCache - Cleaned up Recast layer code - Moved portal edge detection to Recast - Removed polymesh border offset - Removed lean heighfield
120 lines
3.5 KiB
C
120 lines
3.5 KiB
C
//
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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 DETOURTILECACHEBUILDER_H
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#define DETOURTILECACHEBUILDER_H
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#include "DetourAlloc.h"
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#include "DetourStatus.h"
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static const int DT_TILECACHE_MAGIC = 'D'<<24 | 'T'<<16 | 'I'<<8 | 'C'; //'DTIC';
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static const int DT_TILECACHE_VERSION = 1;
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struct dtTileCacheLayerParams
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{
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float bmin[3], bmax[3]; // Bounding box of the heightfield.
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float cs, ch; // Cell size and height.
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};
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struct dtTileCacheLayerHeader
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{
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int magic; // Data magic
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int version; // Data version
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unsigned short hmin, hmax; // Height min/max range
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unsigned char width, height; // Dimension of the layer.
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unsigned char minx, maxx, miny, maxy; // Usable sub-region.
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};
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struct dtTileCacheLayer
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{
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dtTileCacheLayerHeader* header;
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unsigned char regCount; // Region count.
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unsigned char* heights;
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unsigned char* areas;
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unsigned char* cons;
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unsigned char* regs;
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};
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struct dtTileCacheContour
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{
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int nverts;
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unsigned char* verts;
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unsigned char reg;
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unsigned char area;
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};
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struct dtTileCacheContourSet
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{
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int nconts;
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dtTileCacheContour* conts;
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};
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struct dtTileCachePolyMesh
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{
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int nverts; // Number of vertices.
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int npolys; // Number of polygons.
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unsigned short* verts; // Vertices of the mesh, 3 elements per vertex.
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unsigned short* polys; // Polygons of the mesh, nvp*2 elements per polygon.
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unsigned short* flags; // Per polygon flags.
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unsigned char* areas; // Area ID of polygons.
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};
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struct dtTileCacheAlloc
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{
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virtual void* alloc(const int size)
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{
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return dtAlloc(size, DT_ALLOC_TEMP);
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}
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virtual void free(void* ptr)
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{
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dtFree(ptr);
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}
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};
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dtStatus dtCastTileCacheLayer(dtTileCacheLayer& layer, unsigned char* buffer, const int bufferSize);
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// Returns the amount of memory requires for specific grid size.
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int dtCalcTileCacheLayerBufferSize(const int gridWidth, const int gridHeight);
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dtTileCacheContourSet* dtAllocTileCacheContourSet(dtTileCacheAlloc* alloc);
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void dtFreeTileCacheContourSet(dtTileCacheAlloc* alloc, dtTileCacheContourSet* cset);
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dtTileCachePolyMesh* dtAllocTileCachePolyMesh(dtTileCacheAlloc* alloc);
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void dtFreeTileCachePolyMesh(dtTileCacheAlloc* alloc, dtTileCachePolyMesh* lmesh);
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dtStatus dtBuildTileCacheRegions(dtTileCacheAlloc* alloc,
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dtTileCacheLayer& layer,
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const int walkableClimb);
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dtStatus dtBuildTileCacheContours(dtTileCacheAlloc* alloc,
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dtTileCacheLayer& layer,
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const int walkableClimb, const float maxError,
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dtTileCacheContourSet& lcset);
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dtStatus dtBuildTileCachePolyMesh(dtTileCacheAlloc* alloc,
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dtTileCacheContourSet& lcset,
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dtTileCachePolyMesh& mesh);
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#endif // DETOURTILECACHEBUILDER_H
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