OpenSim.Region.ScriptEngine.Shared.Api.LSL_Api.SetAgentParams C# (CSharp) Method

        protected LSL_List SetAgentParams(ScenePresence sp, LSL_List rules, string originFunc, ref uint rulesParsed)
        {
            int idx = 0;
            int idxStart = 0;

            try
            {
                while (idx < rules.Length)
                {
                    ++rulesParsed;
                    int code = rules.GetLSLIntegerItem(idx++);

                    int remain = rules.Length - idx;
                    idxStart = idx;

                    switch (code)
                    {
                        case ScriptBaseClass.PRIM_POSITION:
                        case ScriptBaseClass.PRIM_POS_LOCAL:
                            if (remain < 1)
                                return new LSL_List();

                            try
                            {
                                sp.OffsetPosition = rules.GetVector3Item(idx++);
                            }
                            catch(InvalidCastException)
                            {
                                if (code == ScriptBaseClass.PRIM_POSITION)
                                {
                                    Error(originFunc, string.Format("Error running rule #{0} -> PRIM_POSITION: arg #{1} - parameter 2 must be vector", rulesParsed, idx - idxStart - 1));
                                }
                                else
                                {
                                    Error(originFunc, string.Format("Error running rule #{0} -> PRIM_POS_LOCAL: arg #{1} - parameter 2 must be vector", rulesParsed, idx - idxStart - 1));
                                }
                                return new LSL_List();
                            }
                            break;

                        case ScriptBaseClass.PRIM_ROTATION:                       
                            if (remain < 1)
                                return new LSL_List();

                            Quaternion inRot;

                            try
                            {
                                inRot = rules.GetQuaternionItem(idx++);
                            }
                            catch(InvalidCastException)
                            {
                                Error(originFunc, string.Format("Error running rule #{0} -> PRIM_ROTATION: arg #{1} - parameter 2 must be rotation", rulesParsed, idx - idxStart - 1));
                                return new LSL_List();
                            }

                            SceneObjectPart parentPart = sp.ParentPart;

                            if (parentPart != null)
                                sp.Rotation =  m_host.GetWorldRotation() * inRot;

                            break;

                        case ScriptBaseClass.PRIM_ROT_LOCAL:
                            if (remain < 1)
                                return new LSL_List();

                            try
                            {
                                sp.Rotation = rules.GetQuaternionItem(idx++);
                            }
                            catch(InvalidCastException)
                            {
                                Error(originFunc, string.Format("Error running rule #{0} -> PRIM_ROT_LOCAL: arg #{1} - parameter 2 must be rotation", rulesParsed, idx - idxStart - 1));
                                return new LSL_List();
                            }

                            break;

                        case ScriptBaseClass.PRIM_TYPE:
                            Error(originFunc, "PRIM_TYPE disallowed on agent");
                            return new LSL_List();

                        case ScriptBaseClass.PRIM_OMEGA:
                            Error(originFunc, "PRIM_OMEGA disallowed on agent");
                            return new LSL_List();

                        case ScriptBaseClass.PRIM_LINK_TARGET:
                            if (remain < 3) // setting to 3 on the basis that parsing any usage of PRIM_LINK_TARGET that has nothing following it is pointless.
                                return new LSL_List();

                            return rules.GetSublist(idx, -1);

                        default:
                            Error(originFunc,
                                string.Format("Error running rule #{0} on agent: arg #{1} - disallowed on agent", rulesParsed, idx - idxStart));
                            return new LSL_List();
                    }
                }
            }
            catch (InvalidCastException e)
            {
                Error(
                    originFunc, 
                    string.Format("Error running rule #{0}: arg #{1} - ", rulesParsed, idx - idxStart) + e.Message);
            }

            return new LSL_List();
        }