1 files changed, 60 insertions, 0 deletions

diff --git a/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Tools/Tools.cs b/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Tools/Tools.cs
new file mode 100644
index 0000000..3f7ab68
--- /dev/null
+++ b/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Tools/Tools.cs
@@ -0,0 +1,60 @@
+/*

+Redistribution and use in source and binary forms, with or without

+modification, are permitted provided that the following conditions are

+met:

+

+    * Redistributions of source code must retain the above copyright

+      notice, this list of conditions and the following disclaimer.

+

+    * Redistributions in binary form must reproduce the above

+      copyright notice, this list of conditions and the following

+      disclaimer in the documentation and/or other materials provided

+      with the distribution.

+

+    * Neither the name of libTerrain nor the names of

+      its contributors may be used to endorse or promote products

+      derived from this software without specific prior written

+      permission.

+

+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+*/

+

+using System;

+using System.Collections.Generic;

+using System.Text;

+

+namespace libTerrain

+{

+    class Tools

+    {

+        public static double linearInterpolate(double a, double b, double amount)

+        {

+            return a + ((b - a) * amount);

+        }

+        public static double exponentialInterpolate(double a, double b, double amount)

+        {

+            a = Math.Pow(a, amount);

+            b = Math.Pow(b - a, 1.0 - amount);

+            return a+b;

+        }

+            public static int powerOf2Log2(int n) {
+                    for (int i = 0; i < 31; i++) {
+                            if ((n & 1) == 1) {
+                                    return i;
+                            }
+                            n >>= 1;
+                    }
+                    return 0;
+            }

+    }

+}