Warning timer system

        /// <summary>
        /// Sherberts Warning Script
        /// Uses turrets with the tag in thier name to detect enemies, on enemy detection will trigger the timer block
        /// with timerLockName. Once it loses the enemy lock it triggers the Timer with the name matching timerNoLockName
        ///
        /// setup
        /// place turrets (oki targeters prefered with max range) on all sides of grid, Add the tag to the name. [warn] by default
        /// place 2 timer blocks and match thier names to the variables below, and setup thier actions to trigger your warning system
        ///     Lights soundblocks whatever I dont care im righting this for kicks, do what you want.
        /// place a PB and add this program to it.
        ///
        /// </summary>


        string tag = "[warn]";
        string timerLockName = "Timer Locked";
        string timerNoLockName = "Timer NoLock";

        IMyTimerBlock timerLock;
        IMyTimerBlock timerNoLock;

        List<IMyTerminalBlock> turrets = new List<IMyTerminalBlock>();

        bool prevState = false;

        public Program()
        {
            timerLock = GridTerminalSystem.GetBlockWithName(timerLockName) as IMyTimerBlock;
            timerNoLock = GridTerminalSystem.GetBlockWithName(timerNoLockName) as IMyTimerBlock;
            if (timerLock == null || timerNoLock == null)
                Echo("Timer names are Invalid, Check Again");

            GridTerminalSystem.SearchBlocksOfName(tag, turrets);

            Runtime.UpdateFrequency = UpdateFrequency.Update100;

            timerNoLock.Trigger();

        }

        public void Main(string argument, UpdateType updateSource)
        {
            bool locked = false;
           foreach(var i in turrets)
            {
                IMyLargeTurretBase turret = i as IMyLargeTurretBase;

                if(turret.HasTarget)
                {
                    locked = true;
                    break;
                }

            }

           if(locked != prevState)
            {
                prevState = locked;
                if (locked)
                    timerLock.Trigger();
                else
                    timerNoLock.Trigger();
            }


        }