From 8c19809ed2d9c25408e831808f2891bcb374dcce Mon Sep 17 00:00:00 2001
From: MW <Michaelwri22@yahoo.co.uk>
Date: Tue, 16 Dec 2008 13:57:48 +0000
Subject: [PATCH] Merged Revision 7650 from Trunk to 0.6.0-stable branch. A
 patch from jonc to add a "terrain flip x/y" command.

---
 CONTRIBUTORS.txt                              |  3 +-
 .../Modules/World/Terrain/TerrainModule.cs    | 46 +++++++++++++++++++
 2 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
index 228f09c0db..7d79c9fec6 100644
--- a/CONTRIBUTORS.txt
+++ b/CONTRIBUTORS.txt
@@ -54,6 +54,7 @@ Patches
 * jhurliman
 * jimbo2120 (IBM)
 * John R Sohn (XenReborn)
+* jonc
 * Junta Kohime
 * Kayne
 * Kevin Cozens
@@ -63,6 +64,7 @@ Patches
 * M.Igarashi
 * Mic Bowman
 * mikkopa/_someone - RealXtend
+* Mircea Kitsune
 * nlin
 * nornalbion
 * openlifegrid.com
@@ -79,7 +81,6 @@ Patches
 * Y. Nitta
 * YZh
 * Zha Ewry
-* Mircea Kitsune
 
 
 LSL Devs
diff --git a/OpenSim/Region/Environment/Modules/World/Terrain/TerrainModule.cs b/OpenSim/Region/Environment/Modules/World/Terrain/TerrainModule.cs
index c49b0b9ebe..bfdff96d3c 100644
--- a/OpenSim/Region/Environment/Modules/World/Terrain/TerrainModule.cs
+++ b/OpenSim/Region/Environment/Modules/World/Terrain/TerrainModule.cs
@@ -752,6 +752,47 @@ namespace OpenSim.Region.Environment.Modules.World.Terrain
             CheckForTerrainUpdates();
         }
 
+        private void InterfaceFlipTerrain(Object[] args)
+        {
+            String direction = (String)args[0];
+
+            if( direction.ToLower().StartsWith("y"))
+            {
+                for (int x = 0; x < Constants.RegionSize; x++)
+                {
+                    for (int y = 0; y < Constants.RegionSize / 2; y++)
+                    {
+                        double height = m_channel[x, y];
+                        double flippedHeight = m_channel[x, (int)Constants.RegionSize - 1 - y];
+                        m_channel[x, y] = flippedHeight;
+                        m_channel[x, (int)Constants.RegionSize - 1 - y] = height;
+
+                    }
+                }
+            }
+            else if (direction.ToLower().StartsWith("x"))
+            {
+                for (int y = 0; y < Constants.RegionSize; y++)
+                {
+                    for (int x = 0; x < Constants.RegionSize / 2; x++)
+                    {
+                        double height = m_channel[x, y];
+                        double flippedHeight = m_channel[(int)Constants.RegionSize - 1 - x, y];
+                        m_channel[x, y] = flippedHeight;
+                        m_channel[(int)Constants.RegionSize - 1 - x, y] = height;
+
+                    }
+                }
+            }
+            else
+            {
+                m_log.Error("Unrecognised direction - need x or y");
+            }
+
+
+            CheckForTerrainUpdates();
+        }
+
         private void InterfaceElevateTerrain(Object[] args)
         {
             int x, y;
@@ -910,6 +951,10 @@ namespace OpenSim.Region.Environment.Modules.World.Terrain
             Command revertRegionCommand =
                 new Command("revert", CommandIntentions.COMMAND_HAZARDOUS, InterfaceRevertTerrain, "Loads the revert map terrain into the regions heightmap.");
 
+            Command flipCommand =
+                new Command("flip", CommandIntentions.COMMAND_HAZARDOUS, InterfaceFlipTerrain, "Flips the current terrain about the X or Y axis");
+            flipCommand.AddArgument("direction", "[x|y] the direction to flip the terrain in", "String");
+
             // Debug
             Command showDebugStatsCommand =
                 new Command("stats", CommandIntentions.COMMAND_STATISTICAL, InterfaceShowDebugStats,
@@ -937,6 +982,7 @@ namespace OpenSim.Region.Environment.Modules.World.Terrain
             m_commander.RegisterCommand("newbrushes", experimentalBrushesCommand);
             m_commander.RegisterCommand("stats", showDebugStatsCommand);
             m_commander.RegisterCommand("effect", pluginRunCommand);
+            m_commander.RegisterCommand("flip", flipCommand);
 
             // Add this to our scene so scripts can call these functions
             m_scene.RegisterModuleCommander("Terrain", m_commander);