From a949556c4ea74c993fc15bcfdcbc672d9f971897 Mon Sep 17 00:00:00 2001
From: dahlia <dahlia@nomail>
Date: Mon, 10 Jun 2013 16:42:49 -0700
Subject: [PATCH] add a Normalize() method for LSL_Rotation

---
 .../Region/ScriptEngine/Shared/LSL_Types.cs   | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs b/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
index 9ca5ca9e0a..f6d94a3c82 100644
--- a/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/LSL_Types.cs
@@ -371,6 +371,31 @@ namespace OpenSim.Region.ScriptEngine.Shared
 
             #endregion
 
+            #region Methods
+            public Quaternion Normalize()
+            {
+                double length = Math.Sqrt(x * x + y * y + z * z + s * s);
+                if (length < float.Epsilon)
+                {
+                    x = 1;
+                    y = 0;
+                    z = 0;
+                    s = 0;
+                }
+                else
+                {
+
+                    double invLength = 1.0 / length;
+                    x *= invLength;
+                    y *= invLength;
+                    z *= invLength;
+                    s *= invLength;
+                }
+
+                return this;
+            }
+            #endregion
+
             #region Overriders
 
             public override int GetHashCode()