i had worked into this screen class...
maybe it's not the best one, but i wan't to get some opinions about how to do it better...
NOTE: ANY STUPID POST WILL BE REPORTED -.-''
Code:
public class Screen
{
uint Uid;
Character mOwner { get { return Server.Pool[Uid]; } }
Dictionary<uint, object> List = null;
public Screen(uint _uid)
{
List = new Dictionary<uint, object>();
Uid = _uid;
}
public void Send(byte[] Data, bool m_nTo)
{
if (m_nTo) mOwner.Owner.Send(Data);
object[] Objs = null;
again:
try
{
Objs = new object[List.Count];
List.Values.CopyTo(Objs, 0);
}
catch { goto again; }
foreach (object Obj in Objs)
if (Obj is Character)
(Obj as Character).Owner.Send(Data);
}
public void Add(uint UID, object Obj)
{
if (!List.ContainsKey(UID) && UID != Uid)
{
lock (List)
List.Add(UID, Obj);
#region [Client]
if (Obj is Character)
{
Character Client = (Obj as Character);
mOwner.Owner.Send(Client.Spawn);
}
#endregion
#region [Monster]
if (Obj is Monster)
{
Monster Mob = (Obj as Monster);
mOwner.Owner.Send(Packets.ConquerPacket.SpawnMonster(Mob));
}
#endregion
#region [Npc]
if (Obj is Struct.NPC)
{
Struct.NPC Npc = (Obj as Struct.NPC);
mOwner.Owner.Send(Packets.ConquerPacket.SpawnNPC(Npc));
}
#endregion
#region [Terrain]
if (Obj is Struct.Terrain)
{
Struct.Terrain Terrain = (Obj as Struct.Terrain);
mOwner.Owner.Send(Packets.ConquerPacket.TerrainNPC(Terrain));
}
#endregion
}
}
public void Remove(uint UID)
{
if (Uid != UID && List.ContainsKey(UID)) List.Remove(UID);
mOwner.Owner.Send(Packets.ConquerPacket.General(UID, 0, 0, 0, 0, 0, Struct.DataType.EntityRemove));
}
public object Get(uint UID)
{
object Return = null;
if (List.ContainsKey(UID))
lock (List)
Return = List[UID];
return Return;
}
public bool TryGetValue(uint key, out object value)
{
value = null;
try
{
object ob = null;
if (List.ContainsKey(key))
{
ob = List[key];
#region [Client]
if (ob is Character)
{
value = ob as Character;
return true;
}
#endregion
#region [Monster]
if (ob is Monster)
{
value = ob as Monster;
return true;
}
#endregion
#region [Npc]
if (ob is Struct.NPC)
{
value = ob as Struct.NPC;
return true;
}
#endregion
#region [Terrain]
if (ob is Struct.Terrain)
{
value = ob as Struct.Terrain;
return true;
}
#endregion
}
}
catch { return false; }
return false;
}
public void CheckUp()
{
object[] Objs = null;
again:
try
{
Objs = new object[List.Count];
List.Values.CopyTo(Objs, 0);
}
catch { goto again; }
foreach (object Obj in Objs)
{
#region [Client]
if (Obj is Character)
{
Character Client = (Obj as Character);
if (!Calculation.CanSee(Client.X, Client.Y, mOwner.X, mOwner.Y))
Remove(Client.UID);
}
#endregion
#region [Monster]
if (Obj is Monster)
{
Monster Mob = (Obj as Monster);
if (!Calculation.CanSee(Mob.X, Mob.Y, mOwner.X, mOwner.Y))
Remove(Mob.UID);
}
#endregion
#region [Npc]
if (Obj is Struct.NPC)
{
Struct.NPC Npc = (Obj as Struct.NPC);
if (!Calculation.CanSee(Npc.X, Npc.Y, mOwner.X, mOwner.Y))
Remove(Npc.Type);
}
#endregion
#region [Terrain]
if (Obj is Struct.Terrain)
{
Struct.Terrain Terrain = (Obj as Struct.Terrain);
if (!Calculation.CanSee(Terrain.X, Terrain.Y, mOwner.X, mOwner.Y))
Remove(Terrain.UID);
}
#endregion
}
}
}
, 
