mirror of
https://github.com/ncblakely/GiantsTools
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60 lines
2.1 KiB
C
60 lines
2.1 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 CHUNKYTRIMESH_H
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#define CHUNKYTRIMESH_H
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struct rcChunkyTriMeshNode
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{
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float bmin[2];
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float bmax[2];
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int i;
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int n;
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};
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struct rcChunkyTriMesh
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{
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inline rcChunkyTriMesh() : nodes(0), nnodes(0), tris(0), ntris(0), maxTrisPerChunk(0) {};
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inline ~rcChunkyTriMesh() { delete [] nodes; delete [] tris; }
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rcChunkyTriMeshNode* nodes;
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int nnodes;
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int* tris;
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int ntris;
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int maxTrisPerChunk;
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private:
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// Explicitly disabled copy constructor and copy assignment operator.
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rcChunkyTriMesh(const rcChunkyTriMesh&);
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rcChunkyTriMesh& operator=(const rcChunkyTriMesh&);
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};
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/// Creates partitioned triangle mesh (AABB tree),
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/// where each node contains at max trisPerChunk triangles.
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bool rcCreateChunkyTriMesh(const float* verts, const int* tris, int ntris,
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int trisPerChunk, rcChunkyTriMesh* cm);
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/// Returns the chunk indices which overlap the input rectable.
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int rcGetChunksOverlappingRect(const rcChunkyTriMesh* cm, float bmin[2], float bmax[2], int* ids, const int maxIds);
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/// Returns the chunk indices which overlap the input segment.
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int rcGetChunksOverlappingSegment(const rcChunkyTriMesh* cm, float p[2], float q[2], int* ids, const int maxIds);
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#endif // CHUNKYTRIMESH_H
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