ODEPlugin

* Added osSetPrimFloatOnWater(BOOL) to make Physical prim float at the water level.   
* osSetPrimFloatOnWater(TRUE); or osSetPrimFloatOnWater(FALSE);
* By default, prim do not float at the water level.
* More work is needed on the floating, but it's a start.

OpenSim/Region/Environment/Scenes/SceneObjectPart.cs

@@ -942,6 +942,22 @@ namespace OpenSim.Region.Environment.Scenes
             }
         }
 
+        public void SetFloatOnWater(int floatYN)
+        {
+            if (PhysActor != null)
+            {
+                if (floatYN == 1)
+                {
+                    PhysActor.FloatOnWater = true;
+                }
+                else
+                {
+                    PhysActor.FloatOnWater = false;
+                }
+
+            }
+        }
+
         public LLVector3 GetSitTargetPositionLL()
         {
             return new LLVector3(m_sitTargetPosition.x, m_sitTargetPosition.y, m_sitTargetPosition.z);

OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsPlugin.cs

@@ -254,6 +254,11 @@ namespace OpenSim.Region.Physics.BasicPhysicsPlugin
             set { return; }
         }
 
+        public override bool FloatOnWater
+        {
+            set { return; }
+        }
+
         public override bool IsPhysical
         {
             get { return false; }

OpenSim/Region/Physics/BulletXPlugin/BulletXPlugin.cs

@@ -930,6 +930,11 @@ namespace OpenSim.Region.Physics.BulletXPlugin
             set { return; }
         }
 
+        public override bool FloatOnWater
+        {
+            set { return; }
+        }
+
         public virtual void SetAcceleration(PhysicsVector accel)
         {
             lock (BulletXScene.BulletXLock)

OpenSim/Region/Physics/Manager/PhysicsActor.cs

@@ -204,6 +204,8 @@ namespace OpenSim.Region.Physics.Manager
         public abstract bool CollidingGround { get; set; }
         public abstract bool CollidingObj { get; set; }
 
+        public abstract bool FloatOnWater { set; }
+
         public abstract PhysicsVector RotationalVelocity { get; set; }
 
         public abstract bool Kinematic { get; set; }
@@ -256,6 +258,12 @@ namespace OpenSim.Region.Physics.Manager
             set { return; } 
         }
 
+        public override bool  FloatOnWater
+        {
+            set { return; }
+        }
+      
+
         public override bool CollidingGround
         {
             get { return false; }

OpenSim/Region/Physics/OdePlugin/ODECharacter.cs

@@ -185,6 +185,11 @@ namespace OpenSim.Region.Physics.OdePlugin
             set { m_buoyancy = value; }
         }
 
+        public override bool FloatOnWater
+        {
+            set { return; }
+        }
+
         public override bool IsPhysical
         {
             get { return false; }

OpenSim/Region/Physics/OdePlugin/ODEPrim.cs

@@ -73,6 +73,7 @@ namespace OpenSim.Region.Physics.OdePlugin
         public bool m_disabled = false;
         public bool m_taintadd = false;
         public bool m_taintselected = false;
+        public bool m_taintCollidesWater = false;
 
 
         public uint m_localID = 0;
@@ -739,6 +740,11 @@ namespace OpenSim.Region.Physics.OdePlugin
 
                 if (m_taintparent != _parent)
                     changelink(timestep);
+
+                if (m_taintCollidesWater != m_collidesWater)
+                    changefloatonwater(timestep);
+
+
             }
             else
             {
@@ -1333,6 +1339,24 @@ namespace OpenSim.Region.Physics.OdePlugin
             m_taintsize = _size;
         }
 
+        public void changefloatonwater(float timestep)
+        {
+            m_collidesWater = m_taintCollidesWater;
+
+            if (prim_geom != (IntPtr)0)
+            {
+                if (m_collidesWater)
+                {
+                    m_collisionFlags |= CollisionCategories.Water;
+                }
+                else 
+                {
+                    m_collisionFlags &= ~CollisionCategories.Water;
+                }
+                d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+            }
+        }
+
         public void changeshape(float timestamp)
         {
            
@@ -1895,6 +1919,14 @@ namespace OpenSim.Region.Physics.OdePlugin
             }
         }
 
+        public override bool FloatOnWater
+        {
+            set {
+                m_taintCollidesWater = value;
+                _parent_scene.AddPhysicsActorTaint(this);
+            }
+        }
+
         public override void SetMomentum(PhysicsVector momentum)
         {
         }

OpenSim/Region/Physics/POSPlugin/POSPlugin.cs

@@ -383,6 +383,11 @@ namespace OpenSim.Region.Physics.POSPlugin
             set { return; }
         }
 
+        public override bool FloatOnWater
+        {
+            set { return; }
+        }
+
         public override bool IsPhysical
         {
             get { return false; }
@@ -622,6 +627,11 @@ namespace OpenSim.Region.Physics.POSPlugin
             set { return; }
         }
 
+        public override bool FloatOnWater
+        {
+            set { return; }
+        }
+
         public override PhysicsVector Velocity
         {
             get { return _velocity; }

OpenSim/Region/Physics/PhysXPlugin/PhysXPlugin.cs

@@ -253,6 +253,11 @@ namespace OpenSim.Region.Physics.PhysXPlugin
             set { return; }
         }
 
+        public override bool FloatOnWater
+        {
+            set { return; }
+        }
+
         public override bool IsPhysical
         {
             get { return false; }
@@ -484,6 +489,11 @@ namespace OpenSim.Region.Physics.PhysXPlugin
             set { return; }
         }
 
+        public override bool FloatOnWater
+        {
+            set { return; }
+        }
+
         public override bool ThrottleUpdates
         {
             get { return false; }

OpenSim/Region/ScriptEngine/Common/BuiltIn_Commands_BaseClass.cs

@@ -1897,6 +1897,11 @@ namespace OpenSim.Region.ScriptEngine.Common
             m_LSL_Functions.osSetParcelMediaURL(url);
         }
 
+        public void osSetPrimFloatOnWater(int floatYN)
+        {
+            m_LSL_Functions.osSetPrimFloatOnWater(floatYN);
+        }
+
         public double llList2Float(LSL_Types.list src, int index)
         {
             return m_LSL_Functions.llList2Float(src, index);

OpenSim/Region/ScriptEngine/Common/LSL_BuiltIn_Commands.cs

@@ -1508,6 +1508,8 @@ namespace OpenSim.Region.ScriptEngine.Common
             }
         }
 
+         
+
         public void llSetHoverHeight(double height, int water, double tau)
         {
             m_host.AddScriptLPS(1);
@@ -4405,6 +4407,18 @@ namespace OpenSim.Region.ScriptEngine.Common
             return false;
         }
 
+        public void osSetPrimFloatOnWater(int floatYN)
+        {
+            m_host.AddScriptLPS(1);
+            if (m_host.ParentGroup != null)
+            {
+                if (m_host.ParentGroup.RootPart != null)
+                {
+                    m_host.ParentGroup.RootPart.SetFloatOnWater(floatYN);
+                }
+            }
+        }
+
         private void NotImplemented(string command)
         {
             m_host.AddScriptLPS(1);

OpenSim/Region/ScriptEngine/Common/LSL_BuiltIn_Commands_Interface.cs

@@ -648,6 +648,7 @@ namespace OpenSim.Region.ScriptEngine.Common
         void osRegionNotice(string msg);
 	    bool osConsoleCommand(string Command);
         void osSetParcelMediaURL(string url);
+        void osSetPrimFloatOnWater(int floatYN);
 
     }
 }