static void useExit(ISession s, Physical p, Exit x)
{
if (x == null) return;
var origin = p.Location;
var destination = Exit.GetDestination(s, x);
// todo: event messages
using (var tx = s.BeginTransaction())
{
foreach (var lis in origin.Contents<Listen>(s))
{
if (lis.Entity != p.Entity)
{
Event.AddEvent(s, lis.Entity, string.Format("{0} leaves.", p.Name));
}
}
foreach (var lis in destination.Contents<Listen>(s))
{
if (lis.Entity != p.Entity)
{
Event.AddEvent(s, lis.Entity, string.Format("{0} enters.", p.Name));
}
}
MoveToLocation(s, p, destination);
tx.Commit();
}
}
public static Location GetDestination(ISession s, Exit x)
{
if (x == null) return null;
var loc = x.Destination.GetFirstComponent<Location>(s);
if (loc == null)
{
var phy = x.Destination.GetFirstComponent<Physical>(s);
if (phy == null) return null;
return phy.Location;
}
return loc;
}
static Components.Exit ExitForDirection(ISession s, Location loc, Exit.Direction dir)
{
return GetExit(s, s.CreateCriteria<Exit>().Add(Expression.Eq("Dir", dir)), loc);
}
public static void DoTunnel(Brain brain, string[] args)
{
// todo: command access restrictions
if (args.Length == 0 || args.Length > 2)
{
brain.Write("Invalid argument count; tunnel <direction> [<destination>]\r\n");
return;
}
using (var s = Program.SF.OpenSession())
{
var phy = Entity.GetFirstComponent<Physical>(s, brain.EntityID);
var loc = phy.Location;
var dir = DirectionFromName(args[0]);
var x = ExitForDirection(s, loc, dir);
if (x != null)
{
brain.Write("Exit already exists in that direction; manual creation is required.\r\n");
return;
}
using (var tx = s.BeginTransaction())
{
Entity destination = null;
if (args.Length == 2)
{
Guid destId;
if (Guid.TryParse(args[1], out destId))
{
var dloc = s.Get<Location>(destId);
if (dloc != null)
{
destination = dloc.Entity;
}
}
}
if (destination == null)
{
var newloc = Location.CreateLocation(s, "An empty room", "Empty Room");
destination = newloc.Entity;
}
x = new Exit
{
Entity = loc.Entity,
Destination = destination,
Dir = dir,
};
var x2 = new Exit
{
Entity = destination,
Destination = loc.Entity,
Dir = InvertDirection(dir)
};
s.Save(x);
s.Save(x2);
tx.Commit();
}
useExit(s, phy, x);
Player.DoLook(brain, new string[] { });
}
}