Airlock script for Space Engineers

airlock.cs

public Program()

{

    // The constructor, called only once every session and
    // always before any other method is called. Use it to
    // initialize your script. 
    //     
    // The constructor is optional and can be removed if not
    // needed.
    // 
    // It's recommended to set RuntimeInfo.UpdateFrequency 
    // here, which will allow your script to run itself without a 
    // timer block.

    Runtime.UpdateFrequency = UpdateFrequency.Update10;
}



public void Main(string argument, UpdateType updateSource)

{

    string doorNamePattern = @"(?<name>\w+)\s+\[Airlock (?<side>Inner|Outer)\]";
    var doors = new List<IMyTerminalBlock>();
    var doorSets = new Dictionary<string, List<IMyDoor>>();
    var doorNameExpression = new System.Text.RegularExpressions.Regex(doorNamePattern);
    
    GridTerminalSystem.SearchBlocksOfName("[Airlock", doors);

    foreach (IMyTerminalBlock door in doors) {
        System.Text.RegularExpressions.Match match = doorNameExpression.Match(door.CustomName);
        if (match.Success) {
            System.Text.RegularExpressions.GroupCollection groups = match.Groups;
            string name = groups["name"].Value;
            string side = groups["side"].Value;
            List<IMyDoor> doorSet;
            if (doorSets.ContainsKey(name)) {
                doorSet = doorSets[name];
            } else {
                doorSet = new List<IMyDoor>();
            }
            doorSet.Add(door as IMyDoor);
            doorSets[name] = doorSet;
        } else {
            Echo("Failed to parse door name: " + door.CustomName);
        }
    }

    foreach (var doorSet in doorSets.Values) {
        IMyDoor openDoor = null;
        bool tooManyOpen = false;
        foreach (var door in doorSet) {
            if (door.Open && openDoor == null) {
                openDoor = door;
            } else if (door.Open && openDoor != null) {
                tooManyOpen = true;
            }
        }

        // Slam everything shut if there are too many doors open.
        if (tooManyOpen) {
            foreach (var door in doorSet) {
                door.Enabled = true;
                var action = door.GetActionWithName("Open_Off");
                action.Apply(door);
            }
            continue;
        }

        if (openDoor != null) {
            foreach (var door in doorSet) {
                if (door != openDoor) {
                    door.Enabled = false;
                } else {
                    door.Enabled = true;
                }
            }
            // Update timer on open door
            try
            {
                var doorTimer = Int32.Parse(openDoor.CustomData);
                if (doorTimer < 1) {
                    var action = openDoor.GetActionWithName("Open_Off");
                    action.Apply(openDoor);
                } else {
                    doorTimer -= 1;
                    openDoor.CustomData = doorTimer.ToString();
                }

            }
            catch (FormatException) {
                openDoor.CustomData = "15";
            }
        } else {
            foreach (var door in doorSet) {
                door.CustomData = "";
                door.Enabled = true;
            }
        }
    }
}