Are part modules started before the scenario modules?

[Ippo]

Hi everyone,

I'm having a problem with scenario modules. I have one that contains some settings and other amenities, so that my PartModules can access them.

However, I need to load these values during OnStart(), and it appears that when I try to do that the ScenarioModule hasn't been instantiated yet.

And yes, I did remember to add the scenario to the game before I tried to use it. Does anybody know more about this?

[xEvilReeperx]

I don't know about PartModules but it's definitely possible to have KSPAddons initialized before ScenarioModules. If my addon needs to work with one, I use a coroutine to wait until the ScenarioModule is ready

[Ippo]

Would you mind if I asked you for an example?

[Diazo]

The other thing to look at is the Awake() method.

From the unity documentation, Awake() runs when the assembly is loaded, Start() runs when the scene is ready to run.

As I understand it, Start() is effectively the first Update() frame where-as Awake() runs as soon as that class is initialized.

Note however that KSP does stuff behind the scenes in Awake and I'm not sure it is available all the time. (So as always, testing required.)

D.

[xEvilReeperx]

Would you mind if I asked you for an example?

Well, the most common example would probably be doing something with the R&D instance. I found that trying to access it directly in my own Start leads to problems (at least in flight it does), so I work along these lines instead:

[KSPAddon(KSPAddon.Startup.Flight, false)]
public class RnDAccessor : MonoBehaviour
{
    IEnumerator Start()
    {
        while (ResearchAndDevelopment.Instance == null)
            yield return 0;

        // now R&D is ready
    }
}

[Ippo]

Hi there, I implemented it and it works like a charm

I actually didn't convert Start to a coroutine though... I'll try later just out of curiosity. Thanks!