If I want to override only a few of methods from some of the linespec classes, say a single method from Actor.FlagsAndAppearance, should I duplicate all its contents in custom progs?

I would just override the method in the custom game Actor class you have built (if any), if you haven't built it, then build it using that method <!-- s:) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" /><!-- s:) --> .

[quote="Firebrand":1c4qng06]if you haven't built it, then build it using that method <!-- s:) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" /><!-- s:) --> . I wonder what this directive means?

[quote="Crimson Wizard":1n4mz7f1][quote="Firebrand":1n4mz7f1]if you haven't built it, then build it using that method <!-- s:) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" /><!-- s:) --> . I wonder what this directive means? What I mean is that you can create an Actor.KArena.vc (or something similar) and put those methods you want to override there <!-- s:) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" /><!-- s:) -->.

Wrong term perhaps, I am speaking about substitution. There's Actor.FlagsAndAppearance, and there's, for example, SetReflective and UnsetReflective methods. I want to modify something there, so it substitute original ones in my cutom progs for all actors. So, questions are: 1. Should I put the substitutive functions to the file with SAME name as original. 2. If yes, should I duplicate all of original file's contents too.

1. Yes. 2. No, it's not necessary.

You won't be able to replace them like that. Basically you have to replace the whole file with a modified one. I have an idea how to simplify this, but it needs some other changes first.