libremetaverse/libsecondlife-cs/examples/TestClient/Commands/SitCommand.cs

using System;
using System.Collections.Generic;
using System.Text;
using libsecondlife;
using libsecondlife.Packets;

namespace libsecondlife.TestClient
{
    public class SitCommand: Command
    {
		public SitCommand()
		{
			Name = "sit";
			Description = "Attempt to sit on the closest prim";
		}

        public override string Execute(SecondLife Client, string[] args, LLUUID fromAgentID)
		{
		    PrimObject closest = null;
		    double closestDistance = Double.MaxValue;

		    lock (TestClient.Prims)
		    {
		        foreach (PrimObject p in TestClient.Prims.Values)
		        {
                    float distance = Helpers.VecDist(Client.Self.Position, p.Position);

	                if (closest == null || distance < closestDistance)
	                {
	                    closest = p;
	                    closestDistance = distance;
	                }
		        }
		    }

            if (closest != null)
            {
                Client.Self.RequestSit(closest.ID, LLVector3.Zero);
                Client.Self.Sit();

                return TestClient.Prims.Count + " prims. Sat on " + closest.ID + ". Distance: " + closestDistance;
            }
            else
            {
                return "Couldn't find a nearby prim to sit on";
            }
		}
    }
}