Attack Script

public string receiveTag = "controlcoordinate";

public IMyBroadcastListener coordinateListener;

public List<Vector3D> receivedCoordinates = new List<Vector3D>();

public Program()
{
    Runtime.UpdateFrequency = UpdateFrequency.Update10;
    coordinateListener = IGC.RegisterBroadcastListener(receiveTag);
    Echo("Listening on tag: " + receiveTag);
    Save();
}

public void Save()
{

}

public void Main(string argument, UpdateType updateSource)
{
    if (coordinateListener.HasPendingMessage)
    {
        MyIGCMessage message = coordinateListener.AcceptMessage();
        Vector3D coordinate = (Vector3D)(message.Data);
        Echo("Coordinate received at: " + coordinate.ToString("N0"));
        if (!receivedCoordinates.Contains(coordinate)) receivedCoordinates.Add(coordinate);
    }
    Output();
}

public void Output()
{
    StringBuilder builder = new StringBuilder();
    for (int i = 0; i < receivedCoordinates.Count; i++)
    {
        builder.AppendLine(receivedCoordinates[i].ToString("N0"));
    }
    List<IMyTerminalBlock> blocks = new List<IMyTerminalBlock>();
    GridTerminalSystem.GetBlocksOfType<IMyTextPanel>(blocks, b => b.CustomName.ToLower().Contains("coordinate"));
    for (int i = 0; i < blocks.Count; i++)
    {
        IMyTextSurface surface = (IMyTextSurface)blocks[i];
        surface.ContentType = VRage.Game.GUI.TextPanel.ContentType.TEXT_AND_IMAGE;
        surface.WriteText(builder);
    }
}