Space Engineers Scripting Tutorial Scenario - Updated Code for 2nd Tut

OxygenSecurityLockProgram.cs

// In space oxygen is a very valuable ressource
// keeping a large place supplied with oxygen
// when ressources are getting low can be a waste
// therefore it can be relevant if the case happen to
// reduce the oxygenated area and bring back
// oxygen where needed.

// This script ensure that when the oxygen generator 
// ice ressources become low oxygen gets sucked
// out and then reserved for the medical room.

/* PS:
 *  Try to understand the code. If you cant, focus on what is
 *  missing in the damaged programs. In this series of exercices
 *  The code is always mirrored in a way so that working
 *  examples can help you complete the non working ones
 *  by changing very few things.
 */

void DepressurizeAllAirVents()
{
    var myAirVents = new List<IMyAirVent>();
    GridTerminalSystem.GetBlocksOfType<IMyAirVent>(myAirVents);
    for (int i = 0; i < myAirVents.Count; i++)
    {
        //We exclude the Airvent of the sas of course
        if (myAirVents[i].CustomName != "SasAirVent")
            myAirVents[i].ApplyAction("Depressurize_On");
    }
}

/* PS:
 * This function code is here to show you how you can access
 * Inventories of your blocks. It is yet not relevant to fix the actual
 * issue as it does not have to be changed from one code to the other.
 */
float GetGeneratorRemainingIceAmount()
{
    float IceAmount = 0.0f;  

    // To access the inventory of a block you can slice it to IMyInventoryOwner. 
    var myOxygenGenerator = GridTerminalSystem.GetBlockWithName("OxygenGenerator") as IMyGasGenerator;
 
    if (myOxygenGenerator != null) 
    { 
        // Searching every slots in the inventory is done this way 
        // in Space engineers an inventory is a slot that contains
        // items of a given type. So basicly when you open the
        // inventory tab what you see is in fact a list of inventories
        // characters and blocks possess thus a list of inventories.
        for (var i = 0; i < myOxygenGenerator.InventoryCount; i++) 
        { 
            var slot = myOxygenGenerator.GetInventory(i); 
            var items = new List<MyInventoryItem>();
            slot.GetItems(items); 
            for (int j = 0; j < items.Count; j++) 
            { 
                IceAmount += (float)items[j].Amount; 
                Echo(items[j].Amount.ToString());  
            } 
        } 
    }
    return IceAmount;
}

void ChangeOxygenRoomLightsColor()
{
    var myLights = new List<IMyTerminalBlock>();
    GridTerminalSystem.SearchBlocksOfName("Light_OxygenRoom", myLights);
    var myColor = new Color(255, 0, 0);

    for (int i =0; i< myLights.Count; i++)
    {
        var light = myLights[i] as IMyInteriorLight;
        light.SetValue("Color", myColor);
    }
}

void Main(string argument)
{
    if (GetGeneratorRemainingIceAmount() < 100)
    {
        DepressurizeAllAirVents();
        ChangeOxygenRoomLightsColor();
    }
}