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/* The MIT License
*
* Copyright (c) 2010 Intel Corporation.
* All rights reserved.
*
* Based on the convexdecomposition library from
* <http://codesuppository.googlecode.com> by John W. Ratcliff and Stan Melax.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
using System;
using System.Collections.Generic;
namespace OpenSim.Region.Physics.ConvexDecompositionDotNet
{
public class HullResult
{
public bool Polygons = true; // true if indices represents polygons, false indices are triangles
public List<float3> OutputVertices = new List<float3>();
public List<int> Indices;
// If triangles, then indices are array indexes into the vertex list.
// If polygons, indices are in the form (number of points in face) (p1, p2, p3, ..) etc..
}
public class PHullResult
{
public List<float3> Vertices = new List<float3>();
public List<int> Indices = new List<int>();
}
[Flags]
public enum HullFlag : int
{
QF_DEFAULT = 0,
QF_TRIANGLES = (1 << 0), // report results as triangles, not polygons.
QF_SKIN_WIDTH = (1 << 2) // extrude hull based on this skin width
}
public enum HullError : int
{
QE_OK, // success!
QE_FAIL // failed.
}
public class HullDesc
{
public HullFlag Flags; // flags to use when generating the convex hull.
public List<float3> Vertices;
public float NormalEpsilon; // the epsilon for removing duplicates. This is a normalized value, if normalized bit is on.
public float SkinWidth;
public uint MaxVertices; // maximum number of vertices to be considered for the hull!
public uint MaxFaces;
public HullDesc()
{
Flags = HullFlag.QF_DEFAULT;
Vertices = new List<float3>();
NormalEpsilon = 0.001f;
MaxVertices = 4096;
MaxFaces = 4096;
SkinWidth = 0.01f;
}
public HullDesc(HullFlag flags, List<float3> vertices)
{
Flags = flags;
Vertices = new List<float3>(vertices);
NormalEpsilon = 0.001f;
MaxVertices = 4096;
MaxFaces = 4096;
SkinWidth = 0.01f;
}
public bool HasHullFlag(HullFlag flag)
{
return (Flags & flag) != 0;
}
public void SetHullFlag(HullFlag flag)
{
Flags |= flag;
}
public void ClearHullFlag(HullFlag flag)
{
Flags &= ~flag;
}
}
public class ConvexH
{
public struct HalfEdge
{
public short ea; // the other half of the edge (index into edges list)
public byte v; // the vertex at the start of this edge (index into vertices list)
public byte p; // the facet on which this edge lies (index into facets list)
public HalfEdge(short _ea, byte _v, byte _p)
{
ea = _ea;
v = _v;
p = _p;
}
public HalfEdge(HalfEdge e)
{
ea = e.ea;
v = e.v;
p = e.p;
}
}
public List<float3> vertices = new List<float3>();
public List<HalfEdge> edges = new List<HalfEdge>();
public List<Plane> facets = new List<Plane>();
public ConvexH(int vertices_size, int edges_size, int facets_size)
{
vertices = new List<float3>(vertices_size);
edges = new List<HalfEdge>(edges_size);
facets = new List<Plane>(facets_size);
}
}
public class VertFlag
{
public byte planetest;
public byte junk;
public byte undermap;
public byte overmap;
}
public class EdgeFlag
{
public byte planetest;
public byte fixes;
public short undermap;
public short overmap;
}
public class PlaneFlag
{
public byte undermap;
public byte overmap;
}
public class Coplanar
{
public ushort ea;
public byte v0;
public byte v1;
}
}
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