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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;
using System.Diagnostics;
namespace OpenSim.Region.Physics.ConvexDecompositionDotNet
{
public class HullTriangle : int3
{
public int3 n = new int3();
public int id;
public int vmax;
public float rise;
private List<HullTriangle> tris;
public HullTriangle(int a, int b, int c, List<HullTriangle> tris)
: base(a, b, c)
{
this.tris = tris;
n = new int3(-1, -1, -1);
id = tris.Count;
tris.Add(this);
vmax = -1;
rise = 0.0f;
}
public void Dispose()
{
Debug.Assert(tris[id] == this);
tris[id] = null;
}
public int neib(int a, int b)
{
int i;
for (i = 0; i < 3; i++)
{
int i1 = (i + 1) % 3;
int i2 = (i + 2) % 3;
if ((this)[i] == a && (this)[i1] == b)
return n[i2];
if ((this)[i] == b && (this)[i1] == a)
return n[i2];
}
Debug.Assert(false);
return -1;
}
public void setneib(int a, int b, int value)
{
int i;
for (i = 0; i < 3; i++)
{
int i1 = (i + 1) % 3;
int i2 = (i + 2) % 3;
if ((this)[i] == a && (this)[i1] == b)
{
n[i2] = value;
return;
}
if ((this)[i] == b && (this)[i1] == a)
{
n[i2] = value;
return;
}
}
}
}
}
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