3 files changed, 33 insertions, 7 deletions

diff --git a/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsScene.cs b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsScene.cs
index 0816b7b..8e40561 100644
--- a/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsScene.cs
+++ b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsScene.cs
@@ -46,6 +46,7 @@ namespace OpenSim.Region.Physics.BasicPhysicsPlugin
         private List<BasicActor> _actors = new List<BasicActor>();
         private List<BasicPhysicsPrim> _prims = new List<BasicPhysicsPrim>();
         private float[] _heightMap;
+        private Vector3 m_regionExtent;
 
         //protected internal string sceneIdentifier;
 
@@ -58,6 +59,12 @@ namespace OpenSim.Region.Physics.BasicPhysicsPlugin
 
         public override void Initialise(IMesher meshmerizer, IConfigSource config)
         {
+            throw new Exception("Should not be called.");
+        }
+
+        public override void Initialise(IMesher meshmerizer, IConfigSource config, Vector3 regionExtent)
+        {
+            m_regionExtent = regionExtent;
         }
 
         public override void Dispose() {}
@@ -121,23 +128,23 @@ namespace OpenSim.Region.Physics.BasicPhysicsPlugin
                 {
                     actorPosition.Y = 0.1F;
                 }
-                else if (actor.Position.Y >= Constants.RegionSize)
+                else if (actor.Position.Y >= m_regionExtent.Y)
                 {
-                    actorPosition.Y = ((int)Constants.RegionSize - 0.1f);
+                    actorPosition.Y = (m_regionExtent.Y - 0.1f);
                 }
 
                 if (actor.Position.X < 0)
                 {
                     actorPosition.X = 0.1F;
                 }
-                else if (actor.Position.X >= Constants.RegionSize)
+                else if (actor.Position.X >= m_regionExtent.X)
                 {
-                    actorPosition.X = ((int)Constants.RegionSize - 0.1f);
+                    actorPosition.X = (m_regionExtent.X - 0.1f);
                 }
 
                 float terrainHeight = 0;
                 if (_heightMap != null)
-                    terrainHeight = _heightMap[(int)actor.Position.Y * Constants.RegionSize + (int)actor.Position.X];
+                    terrainHeight = _heightMap[(int)actor.Position.Y * (int)m_regionExtent.Y + (int)actor.Position.X];
 
                 float height = terrainHeight + actor.Size.Z;
 
diff --git a/OpenSim/Region/Physics/Manager/PhysicsPluginManager.cs b/OpenSim/Region/Physics/Manager/PhysicsPluginManager.cs
index 8ccfda5..d14edfd 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsPluginManager.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsPluginManager.cs
@@ -32,6 +32,7 @@ using System.Reflection;
 using Nini.Config;
 using log4net;
 using OpenSim.Framework;
+using OpenMetaverse;
 
 namespace OpenSim.Region.Physics.Manager
 {
@@ -59,6 +60,14 @@ namespace OpenSim.Region.Physics.Manager
             m_log.Info("[PHYSICS]: Added meshing engine: " + plugHard.GetName());
         }
 
+        // Legacy method for simulators before extent was passed
+        public PhysicsScene GetPhysicsScene(string physEngineName, string meshEngineName,
+                                    IConfigSource config, string regionName)
+        {
+            Vector3 extent = new Vector3(Constants.RegionSize, Constants.RegionSize, Constants.RegionHeight);
+            return GetPhysicsScene(physEngineName, meshEngineName, config, regionName, extent);
+        }
+
         /// <summary>
         /// Get a physics scene for the given physics engine and mesher.
         /// </summary>
@@ -66,7 +75,8 @@ namespace OpenSim.Region.Physics.Manager
         /// <param name="meshEngineName"></param>
         /// <param name="config"></param>
         /// <returns></returns>
-        public PhysicsScene GetPhysicsScene(string physEngineName, string meshEngineName, IConfigSource config, string regionName)
+        public PhysicsScene GetPhysicsScene(string physEngineName, string meshEngineName,
+                                    IConfigSource config, string regionName, Vector3 regionExtent)
         {
             if (String.IsNullOrEmpty(physEngineName))
             {
@@ -94,7 +104,7 @@ namespace OpenSim.Region.Physics.Manager
             {
                 m_log.Info("[PHYSICS]: creating " + physEngineName);
                 PhysicsScene result = _PhysPlugins[physEngineName].GetScene(regionName);
-                result.Initialise(meshEngine, config);
+                result.Initialise(meshEngine, config, regionExtent);
                 return result;
             }
             else
diff --git a/OpenSim/Region/Physics/Manager/PhysicsScene.cs b/OpenSim/Region/Physics/Manager/PhysicsScene.cs
index dd9bbc1..4f4ff07 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsScene.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsScene.cs
@@ -132,8 +132,17 @@ namespace OpenSim.Region.Physics.Manager
             }
         }
 
+        // Deprecated. Do not use this for new physics engines.
         public abstract void Initialise(IMesher meshmerizer, IConfigSource config);
 
+        // For older physics engines that do not implement non-legacy region sizes.
+        // If the physics engine handles the region extent feature, it overrides this function.
+        public virtual void Initialise(IMesher meshmerizer, IConfigSource config, Vector3 regionExtent)
+        {
+            // If not overridden, call the old initialization entry.
+            Initialise(meshmerizer, config);
+        }
+
         /// <summary>
         /// Add an avatar
         /// </summary>