using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace bbiwarg.Recognition.Tracking
{
    class TrackIDPool
    {
        private List<int> usedIDs;

        public TrackIDPool() {
            usedIDs = new List<int>();
        }

        public int getNextUnusedID()
        {
            int id = 1;
            while (usedIDs.Contains(id))
                id++;
            usedIDs.Add(id);
            return id;
        }

        public void setIDUnused(int id)
        {
            usedIDs.Remove(id);
        }
    }
}