Adds osGetHealth.

Returns the amount of health (in an integer) that an avatar has left in the scene.
If an avatar is not found or safe is enabled on a region, -1 is returned.

Example usage:

default
{
    touch_end(integer _t)
    {
        key agentID = llDetectedKey(0);
        osCauseDamage(agentID, 50);
        llSay(0, llKey2Name(agentID) + " has " + (string)osGetHealth(agentID) + "% health left.");
    }
}

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs

@@ -2895,6 +2895,27 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 }
             });
         }
+
+        public LSL_Float osGetHealth(string avatar)
+        {
+            CheckThreatLevel(ThreatLevel.None, "osGetHealth");
+            m_host.AddScriptLPS(1);
+
+            UUID avatarId = new UUID(avatar);
+            Vector3 pos = m_host.GetWorldPosition();
+
+            LSL_Float health = new LSL_Float(-1);
+            ScenePresence presence = World.GetScenePresence(avatarId);
+            if (presence != null)
+            {
+                LandData land = World.GetLandData((float)pos.X, (float)pos.Y);
+                if ((land.Flags & (uint)ParcelFlags.AllowDamage) == (uint)ParcelFlags.AllowDamage)
+                {
+                    health = presence.Health;
+                }
+            }
+            return health;
+        }
         
         public void osCauseDamage(string avatar, double damage)
         {

OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs

@@ -258,6 +258,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         int osGetSimulatorMemory();
         void osKickAvatar(string FirstName,string SurName,string alert);
         void osSetSpeed(string UUID, LSL_Float SpeedModifier);
+        LSL_Float osGetHealth(string avatar);
         void osCauseHealing(string avatar, double healing);
         void osCauseDamage(string avatar, double damage);
         LSL_List osGetPrimitiveParams(LSL_Key prim, LSL_List rules);

OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs

@@ -865,7 +865,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         {
             m_OSSL_Functions.osSetSpeed(UUID, SpeedModifier);
         }
-        
+
+        public LSL_Float osGetHealth(string avatar)
+        {
+            return m_OSSL_Functions.osGetHealth(avatar);
+        }
+
         public void osCauseDamage(string avatar, double damage)
         {
             m_OSSL_Functions.osCauseDamage(avatar, damage);