Merge of ubitworkvarnew with opensim/master as of 20150905.

This integrates the OpenSim refactoring to make physics, etc into modules.
AVN physics hasn't been moved to new location.
Does not compile yet.

Merge branch 'osmaster' into mbworknew1

1 files changed, 265 insertions, 0 deletions

diff --git a/OpenSim/Region/PhysicsModules/ConvexDecompositionDotNet/SplitPlane.cs b/OpenSim/Region/PhysicsModules/ConvexDecompositionDotNet/SplitPlane.cs
new file mode 100644
index 0000000..9f56bc5
--- /dev/null
+++ b/OpenSim/Region/PhysicsModules/ConvexDecompositionDotNet/SplitPlane.cs
@@ -0,0 +1,265 @@
+/* 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.PhysicsModule.ConvexDecompositionDotNet
+{
+    public class Rect3d
+    {
+        public float[] mMin = new float[3];
+        public float[] mMax = new float[3];
+
+        public Rect3d()
+        {
+        }
+
+        public Rect3d(float[] bmin, float[] bmax)
+        {
+            mMin[0] = bmin[0];
+            mMin[1] = bmin[1];
+            mMin[2] = bmin[2];
+
+            mMax[0] = bmax[0];
+            mMax[1] = bmax[1];
+            mMax[2] = bmax[2];
+        }
+
+        public void SetMin(float[] bmin)
+        {
+            mMin[0] = bmin[0];
+            mMin[1] = bmin[1];
+            mMin[2] = bmin[2];
+        }
+
+        public void SetMax(float[] bmax)
+        {
+            mMax[0] = bmax[0];
+            mMax[1] = bmax[1];
+            mMax[2] = bmax[2];
+        }
+
+        public void SetMin(float x, float y, float z)
+        {
+            mMin[0] = x;
+            mMin[1] = y;
+            mMin[2] = z;
+        }
+
+        public void SetMax(float x, float y, float z)
+        {
+            mMax[0] = x;
+            mMax[1] = y;
+            mMax[2] = z;
+        }
+    }
+
+    public static class SplitPlane
+    {
+        public static bool computeSplitPlane(List<float3> vertices, List<int> indices, ref float4 plane)
+        {
+            float[] bmin = { Single.MaxValue, Single.MaxValue, Single.MaxValue };
+            float[] bmax = { Single.MinValue, Single.MinValue, Single.MinValue };
+
+            for (int i = 0; i < vertices.Count; i++)
+            {
+                float3 p = vertices[i];
+
+                if (p[0] < bmin[0])
+                    bmin[0] = p[0];
+                if (p[1] < bmin[1])
+                    bmin[1] = p[1];
+                if (p[2] < bmin[2])
+                    bmin[2] = p[2];
+
+                if (p[0] > bmax[0])
+                    bmax[0] = p[0];
+                if (p[1] > bmax[1])
+                    bmax[1] = p[1];
+                if (p[2] > bmax[2])
+                    bmax[2] = p[2];
+            }
+
+            float dx = bmax[0] - bmin[0];
+            float dy = bmax[1] - bmin[1];
+            float dz = bmax[2] - bmin[2];
+
+            float laxis = dx;
+
+            int axis = 0;
+
+            if (dy > dx)
+            {
+                axis = 1;
+                laxis = dy;
+            }
+
+            if (dz > dx && dz > dy)
+            {
+                axis = 2;
+                laxis = dz;
+            }
+
+            float[] p1 = new float[3];
+            float[] p2 = new float[3];
+            float[] p3 = new float[3];
+
+            p3[0] = p2[0] = p1[0] = bmin[0] + dx * 0.5f;
+            p3[1] = p2[1] = p1[1] = bmin[1] + dy * 0.5f;
+            p3[2] = p2[2] = p1[2] = bmin[2] + dz * 0.5f;
+
+            Rect3d b = new Rect3d(bmin, bmax);
+
+            Rect3d b1 = new Rect3d();
+            Rect3d b2 = new Rect3d();
+
+            splitRect(axis, b, b1, b2, p1);
+
+            switch (axis)
+            {
+                case 0:
+                    p2[1] = bmin[1];
+                    p2[2] = bmin[2];
+
+                    if (dz > dy)
+                    {
+                        p3[1] = bmax[1];
+                        p3[2] = bmin[2];
+                    }
+                    else
+                    {
+                        p3[1] = bmin[1];
+                        p3[2] = bmax[2];
+                    }
+
+                    break;
+                case 1:
+                    p2[0] = bmin[0];
+                    p2[2] = bmin[2];
+
+                    if (dx > dz)
+                    {
+                        p3[0] = bmax[0];
+                        p3[2] = bmin[2];
+                    }
+                    else
+                    {
+                        p3[0] = bmin[0];
+                        p3[2] = bmax[2];
+                    }
+
+                    break;
+                case 2:
+                    p2[0] = bmin[0];
+                    p2[1] = bmin[1];
+
+                    if (dx > dy)
+                    {
+                        p3[0] = bmax[0];
+                        p3[1] = bmin[1];
+                    }
+                    else
+                    {
+                        p3[0] = bmin[0];
+                        p3[1] = bmax[1];
+                    }
+
+                    break;
+            }
+
+            computePlane(p1, p2, p3, plane);
+
+            return true;
+        }
+
+        internal static void computePlane(float[] A, float[] B, float[] C, float4 plane)
+        {
+            float vx = (B[0] - C[0]);
+            float vy = (B[1] - C[1]);
+            float vz = (B[2] - C[2]);
+
+            float wx = (A[0] - B[0]);
+            float wy = (A[1] - B[1]);
+            float wz = (A[2] - B[2]);
+
+            float vw_x = vy * wz - vz * wy;
+            float vw_y = vz * wx - vx * wz;
+            float vw_z = vx * wy - vy * wx;
+
+            float mag = (float)Math.Sqrt((vw_x * vw_x) + (vw_y * vw_y) + (vw_z * vw_z));
+
+            if (mag < 0.000001f)
+            {
+                mag = 0;
+            }
+            else
+            {
+                mag = 1.0f / mag;
+            }
+
+            float x = vw_x * mag;
+            float y = vw_y * mag;
+            float z = vw_z * mag;
+
+            float D = 0.0f - ((x * A[0]) + (y * A[1]) + (z * A[2]));
+
+            plane.x = x;
+            plane.y = y;
+            plane.z = z;
+            plane.w = D;
+        }
+
+        public static void splitRect(int axis, Rect3d source, Rect3d b1, Rect3d b2, float[] midpoint)
+        {
+            switch (axis)
+            {
+                case 0:
+                    b1.SetMin(source.mMin);
+                    b1.SetMax(midpoint[0], source.mMax[1], source.mMax[2]);
+
+                    b2.SetMin(midpoint[0], source.mMin[1], source.mMin[2]);
+                    b2.SetMax(source.mMax);
+                    break;
+                case 1:
+                    b1.SetMin(source.mMin);
+                    b1.SetMax(source.mMax[0], midpoint[1], source.mMax[2]);
+
+                    b2.SetMin(source.mMin[0], midpoint[1], source.mMin[2]);
+                    b2.SetMax(source.mMax);
+                    break;
+                case 2:
+                    b1.SetMin(source.mMin);
+                    b1.SetMax(source.mMax[0], source.mMax[1], midpoint[2]);
+
+                    b2.SetMin(source.mMin[0], source.mMin[1], midpoint[2]);
+                    b2.SetMax(source.mMax);
+                    break;
+            }
+        }
+    }
+}