Principia does not run in debug KSP

This issue has been tracked since 2022-09-04.

I suspect the issue was introduced in #3303. ~~#3201 is also suspect.~~

What I believe to the cause (apologies for screenshot-of-code):

StonesmileGit wrote this answer on 2022-09-10

This NRE gets spammed while in a save:

[EXC 21:38:02.061] NullReferenceException: Object reference not set to an instance of an object
	principia.ksp_plugin_adapter.PrincipiaPluginAdapter.OnGUI () (at <29cbeb58583d4aa39b0d1d244f47f24e>:0)

pleroy wrote this answer on 2022-09-10

For the uninformed: what is "debug KSP" and where do I buy one?

al2me6 wrote this answer on 2022-09-10

It is running KSP's unity in debug mode. cf. https://gist.github.com/gotmachine/d973adcb9ae413386291170fa346d043

pleroy wrote this answer on 2022-09-10

I think it needs lazy initialization of psychohistory_mesh_, prediction_mesh_, target_psychohistory_mesh_, and target_prediction_mesh_ in class Plotter.

DRVeyl wrote this answer on 2022-09-10

Essentially yes. You're instantiating Unity objects during the Plotter constructor [static declarations at the class level], which is not allowed. The exception is swallowed or suppressed in non-debug mode. More appropriate would be to put those initializations into a new Plotter.Awake() method, which gets automatically called right after the constructor.

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More Details About Repo

Owner Name	mockingbirdnest
Repo Name	Principia
Full Name	mockingbirdnest/Principia
Language	C++
Created Date	2014-02-08
Updated Date	2023-03-29
Star Count	664
Watcher Count	29
Fork Count	62
Issue Count	109

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