Mantis#1207. Thank you, TGlion for a patch that addresses:

Implementation of llModifyLand() and There is a bug on 
permission-check of land-terraforming: x an y-coordinates 
are interchanged on function-call ExternalChecksCanTerraformLand.
Correct: x is west, and y is north. 2) Missing check of 
"Other allow to terraform-flag" (Parcel.ParcelFlags.AllowTerraform)

1 files changed, 4 insertions, 2 deletions

diff --git a/OpenSim/Region/Environment/Modules/World/Terrain/Effects/CookieCutter.cs b/OpenSim/Region/Environment/Modules/World/Terrain/Effects/CookieCutter.cs
index 399287d..c5e99b5 100644
--- a/OpenSim/Region/Environment/Modules/World/Terrain/Effects/CookieCutter.cs
+++ b/OpenSim/Region/Environment/Modules/World/Terrain/Effects/CookieCutter.cs
@@ -41,6 +41,7 @@ namespace OpenSim.Region.Environment.Modules.World.Terrain.Effects
             bool[,] cliffMask = new bool[map.Width,map.Height];
             bool[,] channelMask = new bool[map.Width,map.Height];
             bool[,] smoothMask = new bool[map.Width,map.Height];
+            bool[,] allowMask = new bool[map.Width,map.Height];
 
             Console.WriteLine("S1");
 
@@ -52,6 +53,7 @@ namespace OpenSim.Region.Environment.Modules.World.Terrain.Effects
                 {
                     Console.Write(".");
                     smoothMask[x, y] = true;
+                    allowMask[x,y] = true;
 
                     // Start underwater
                     map[x, y] = TerrainUtil.PerlinNoise2D(x, y, 3, 0.25) * 5;
@@ -77,7 +79,7 @@ namespace OpenSim.Region.Environment.Modules.World.Terrain.Effects
                 for (y = 0; y < map.Height; y++)
                 {
                     if (cliffMask[x, y])
-                        eroder.PaintEffect(map, x, y, 4, 0.1);
+                        eroder.PaintEffect(map, allowMask, x, y, -1, 4, 0.1);
                 }
             }
 
@@ -119,4 +121,4 @@ namespace OpenSim.Region.Environment.Modules.World.Terrain.Effects
             }
         }
     }
-}
\ No newline at end of file
+}