void RecvUseWorld(IIPSocket conn, BitStream r)
{
var useEntityIndex = r.ReadMapEntityIndex();
// Get the map and user
User user;
Map map;
if (!TryGetMap(conn, out user, out map))
{
return;
}
if (user.IsPeerTrading)
{
return;
}
if (!user.IsAlive)
{
const string errmsg = "User `{0}` tried to use world entity while dead.";
if (log.IsInfoEnabled)
{
log.InfoFormat(errmsg, user);
}
return;
}
// Grab the DynamicEntity to use
var useEntity = map.GetDynamicEntity(useEntityIndex);
if (useEntity == null)
{
const string errmsg = "UseEntity received but usedEntityIndex `{0}` is not a valid DynamicEntity.";
Debug.Fail(string.Format(errmsg, useEntityIndex));
if (log.IsErrorEnabled)
{
log.ErrorFormat(errmsg, useEntityIndex);
}
return;
}
// Ensure the used DynamicEntity is even usable
var asUsable = useEntity as IUsableEntity;
if (asUsable == null)
{
const string errmsg =
"UseEntity received but useByIndex `{0}` refers to DynamicEntity `{1}` which does " +
"not implement IUsableEntity.";
Debug.Fail(string.Format(errmsg, useEntityIndex, useEntity));
if (log.IsErrorEnabled)
{
log.WarnFormat(errmsg, useEntityIndex, useEntity);
}
return;
}
// Use it
if (asUsable.Use(user))
{
// Notify everyone in the map it was used
if (asUsable.NotifyClientsOfUsage)
{
using (var pw = ServerPacket.UseEntity(useEntity.MapEntityIndex, user.MapEntityIndex))
{
map.Send(pw, ServerMessageType.Map);
}
}
}
}
