From 291c7cdbcc80dc270418a4959ccfa0ed8cc0c190 Mon Sep 17 00:00:00 2001
From: Robert Adams
Date: Wed, 31 Dec 2014 12:43:26 -0800
Subject: BulletSim: Add axis locking enabled through the ExtendedPhysics
 module. Allows locking of prim/linkset relative moving in each of the linear
 and angular axis. Limits on movement or rotation can be set.

---
 .../Scripting/ExtendedPhysics/ExtendedPhysics.cs   | 98 +++++++++++++++-------
 1 file changed, 70 insertions(+), 28 deletions(-)

(limited to 'OpenSim/Region/OptionalModules')

diff --git a/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs b/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs
index 9daf9d7..ff4afbf 100755
--- a/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs
+++ b/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs
@@ -66,6 +66,7 @@ public class ExtendedPhysics : INonSharedRegionModule
     public const string PhysFunctChangeLinkType = "BulletSim.ChangeLinkType";
     public const string PhysFunctGetLinkType = "BulletSim.GetLinkType";
     public const string PhysFunctChangeLinkParams = "BulletSim.ChangeLinkParams";
+    public const string PhysFunctAxisLockLimits = "BulletSim.AxisLockLimits";
 
     // =============================================================
 
@@ -176,6 +177,71 @@ public class ExtendedPhysics : INonSharedRegionModule
         return ret;
     }
 
+    // Code for specifying params.
+    // The choice if 14700 is arbitrary and only serves to catch parameter code misuse.
+    [ScriptConstant]
+    public const int PHYS_AXIS_LOCK_LINEAR     = 14700;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LOCK_LINEAR_X   = 14701;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LIMIT_LINEAR_X  = 14702;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LOCK_LINEAR_Y   = 14703;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LIMIT_LINEAR_Y  = 14704;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LOCK_LINEAR_Z   = 14705;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LIMIT_LINEAR_Z  = 14706;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LOCK_ANGULAR    = 14707;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LOCK_ANGULAR_X  = 14708;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LIMIT_ANGULAR_X = 14709;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LOCK_ANGULAR_Y  = 14710;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LIMIT_ANGULAR_Y = 14711;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LOCK_ANGULAR_Z  = 14712;
+    [ScriptConstant]
+    public const int PHYS_AXIS_LIMIT_ANGULAR_Z = 14713;
+    [ScriptConstant]
+    public const int PHYS_AXIS_UNLOCK_LINEAR   = 14714;
+    [ScriptConstant]
+    public const int PHYS_AXIS_UNLOCK_LINEAR_X = 14715;
+    [ScriptConstant]
+    public const int PHYS_AXIS_UNLOCK_LINEAR_Y = 14716;
+    [ScriptConstant]
+    public const int PHYS_AXIS_UNLOCK_LINEAR_Z = 14717;
+    [ScriptConstant]
+    public const int PHYS_AXIS_UNLOCK_ANGULAR  = 14718;
+    [ScriptConstant]
+    public const int PHYS_AXIS_UNLOCK_ANGULAR_X = 14719;
+    [ScriptConstant]
+    public const int PHYS_AXIS_UNLOCK_ANGULAR_Y = 14720;
+    [ScriptConstant]
+    public const int PHYS_AXIS_UNLOCK_ANGULAR_Z = 14721;
+    [ScriptConstant]
+    public const int PHYS_AXIS_UNLOCK           = 14722;
+    // physAxisLockLimits()
+    [ScriptInvocation]
+    public int physAxisLock(UUID hostID, UUID scriptID, object[] parms)
+    {
+        int ret = -1;
+        if (!Enabled) return ret;
+
+        PhysicsActor rootPhysActor;
+        if (GetRootPhysActor(hostID, out rootPhysActor))
+        {
+            object[] parms2 = AddToBeginningOfArray(rootPhysActor, null, parms);
+            ret = MakeIntError(rootPhysActor.Extension(PhysFunctAxisLockLimits, parms2));
+        }
+
+        return ret;
+    }
+
     [ScriptConstant]
     public const int PHYS_LINKSET_TYPE_CONSTRAINT  = 0;
     [ScriptConstant]
@@ -187,7 +253,6 @@ public class ExtendedPhysics : INonSharedRegionModule
     public int physSetLinksetType(UUID hostID, UUID scriptID, int linksetType)
     {
         int ret = -1;
-
         if (!Enabled) return ret;
 
         // The part that is requesting the change.
@@ -259,34 +324,11 @@ public class ExtendedPhysics : INonSharedRegionModule
         int ret = -1;
         if (!Enabled) return ret;
 
-        // The part that is requesting the change.
-        SceneObjectPart requestingPart = BaseScene.GetSceneObjectPart(hostID);
-
-        if (requestingPart != null)
+        PhysicsActor rootPhysActor;
+        if (GetRootPhysActor(hostID, out rootPhysActor))
         {
-            // The type is is always on the root of a linkset.
-            SceneObjectGroup containingGroup = requestingPart.ParentGroup;
-            SceneObjectPart rootPart = containingGroup.RootPart;
-
-            if (rootPart != null)
-            {
-                PhysicsActor rootPhysActor = rootPart.PhysActor;
-                if (rootPhysActor != null)
-                {
-                    object[] parms2 = { rootPhysActor, null };
-                    ret = MakeIntError(rootPhysActor.Extension(PhysFunctGetLinksetType, parms2));
-                }
-                else
-                {
-                    m_log.WarnFormat("{0} physGetLinksetType: root part does not have a physics actor. rootName={1}, hostID={2}",
-                                        LogHeader, rootPart.Name, hostID);
-                }
-            }
-            else
-            {
-                m_log.WarnFormat("{0} physGetLinksetType: root part does not exist. RequestingPartName={1}, hostID={2}",
-                                    LogHeader, requestingPart.Name, hostID);
-            }
+            object[] parms2 = { rootPhysActor, null };
+            ret = MakeIntError(rootPhysActor.Extension(PhysFunctGetLinksetType, parms2));
         }
         else
         {
-- 
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