using System;
using System.Collections.Generic;
using System.Text;

namespace Chief
{
    public class Units : List<NPC>
    {
        public NPC Find(uint UID)
        {
            lock (this)
            {
                foreach (NPC npc in this)
                {
                    if (npc.UID == UID)
                        return npc;
                }

                return null;
            }
        }
        public NPC Find(D2Data.NPCCode ID)
        {
            lock (this)
            {
                foreach (NPC npc in this)
                {
                    if (npc.ID == ID)
                        return npc;
                }

                return null;
            }
        }
        public NPC Find(string Name)
        {
            lock (this)
            {
                foreach (NPC npc in this)
                {
                    if (npc.Name == Name)
                        return npc;
                }

                return null;
            }
        }

        public List<NPC> FindAll(string Name)
        {
            lock (this)
            {
                List<NPC> tempList = new List<NPC>();

                foreach (NPC npc in this)
                {
                    if (npc.Name == Name)
                        tempList.Add(npc);
                }

                if (tempList.Count != 0)
                    return tempList;

                return null;
            }
        }
        public List<NPC> FindAll(D2Data.NPCCode ID)
        {
            lock (this)
            {
                List<NPC> tempList = new List<NPC>();

                foreach (NPC npc in this)
                {
                    if (npc.ID == ID)
                        tempList.Add(npc);
                }

                if (tempList.Count != 0)
                    return tempList;

                return null;
            }
        }

        public new void Add(NPC npc)
        {
            lock (this)
            {
                base.Add(npc);
            }
        }

        public new void Remove(NPC npc)
        {
            lock (this)
            {
                base.Remove(npc);
            }
        }

        public new Enumerator GetEnumerator()
        {
            lock (this)
            {
                return base.GetEnumerator();
            }
        }
    }
}