1 files changed, 170 insertions, 0 deletions

diff --git a/OpenSim/Region/Physics/ConvexDecompositionDotNet/float4.cs b/OpenSim/Region/Physics/ConvexDecompositionDotNet/float4.cs
new file mode 100644
index 0000000..fa60876
--- /dev/null
+++ b/OpenSim/Region/Physics/ConvexDecompositionDotNet/float4.cs
@@ -0,0 +1,170 @@
+/* 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;
+
+namespace OpenSim.Region.Physics.ConvexDecompositionDotNet
+{
+    public class float4
+    {
+        public float x;
+        public float y;
+        public float z;
+        public float w;
+
+        public float4()
+        {
+            x = 0;
+            y = 0;
+            z = 0;
+            w = 0;
+        }
+
+        public float4(float _x, float _y, float _z, float _w)
+        {
+            x = _x;
+            y = _y;
+            z = _z;
+            w = _w;
+        }
+
+        public float4(float3 v, float _w)
+        {
+            x = v.x;
+            y = v.y;
+            z = v.z;
+            w = _w;
+        }
+
+        public float4(float4 f)
+        {
+            x = f.x;
+            y = f.y;
+            z = f.z;
+            w = f.w;
+        }
+
+        public float this[int i]
+        {
+            get
+            {
+                switch (i)
+                {
+                    case 0: return x;
+                    case 1: return y;
+                    case 2: return z;
+                    case 3: return w;
+                }
+                throw new ArgumentOutOfRangeException();
+            }
+        }
+
+        public float3 xyz()
+        {
+            return new float3(x, y, z);
+        }
+
+        public void setxyz(float3 xyz)
+        {
+            x = xyz.x;
+            y = xyz.y;
+            z = xyz.z;
+        }
+
+        public override int GetHashCode()
+        {
+            return x.GetHashCode() ^ y.GetHashCode() ^ z.GetHashCode() ^ w.GetHashCode();
+        }
+
+        public override bool Equals(object obj)
+        {
+            float4 f = obj as float4;
+            if (f == null)
+                return false;
+
+            return this == f;
+        }
+
+        public static float4 Homogenize(float3 v3)
+        {
+            return Homogenize(v3, 1.0f);
+        }
+
+        //C++ TO C# CONVERTER NOTE: C# does not allow default values for parameters. Overloaded methods are inserted above.
+        //ORIGINAL LINE: float4 Homogenize(const float3 &v3, const float &w =1.0f)
+        public static float4 Homogenize(float3 v3, float w)
+        {
+            return new float4(v3.x, v3.y, v3.z, w);
+        }
+
+        public static float4 cmul(float4 a, float4 b)
+        {
+            return new float4(a.x * b.x, a.y * b.y, a.z * b.z, a.w * b.w);
+        }
+
+        public static float4 operator +(float4 a, float4 b)
+        {
+            return new float4(a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w);
+        }
+        public static float4 operator -(float4 a, float4 b)
+        {
+            return new float4(a.x - b.x, a.y - b.y, a.z - b.z, a.w - b.w);
+        }
+
+        public static float4 operator *(float4 v, float4x4 m)
+        {
+            return v.x * m.x + v.y * m.y + v.z * m.z + v.w * m.w; // yes this actually works
+        }
+
+        public static bool operator ==(float4 a, float4 b)
+        {
+            // If both are null, or both are same instance, return true.
+            if (System.Object.ReferenceEquals(a, b))
+                return true;
+            // If one is null, but not both, return false.
+            if (((object)a == null) || ((object)b == null))
+                return false;
+
+            return (a.x == b.x && a.y == b.y && a.z == b.z && a.w == b.w);
+        }
+
+        public static bool operator !=(float4 a, float4 b)
+        {
+            return !(a == b);
+        }
+
+        public static float4 operator *(float4 v, float s)
+        {
+            return new float4(v.x * s, v.y * s, v.z * s, v.w * s);
+        }
+
+        public static float4 operator *(float s, float4 v)
+        {
+            return new float4(v.x * s, v.y * s, v.z * s, v.w * s);
+        }
+    }
+}