After upgrading, while I was in a factory building, I suddenly got a message warning me that I was in danger because there was no light. As I have researched 'Interior Lighting', I shouldn't have been attacked, yet I was.

Thanks for reporting this. I’ve now fixed the compatibility issue between The Cave and Factorissimo.

This was not really a normal bug in either mod by itself. The problem only happened when The Cave’s Underground Lighting Mode was set to Permanent Night.

Factorissimo’s Interior Lighting research works by changing the lighting settings of the internal factory surface. However, The Cave was also forcing the lighting settings on every surface repeatedly. So Factorissimo would turn the factory interior light on, but The Cave would immediately force that same interior surface back to Permanent Night again.

That is why Interior Lighting worked correctly in Normal, Daylight and Permanent Day modes, but did not work when Permanent Night was enabled.

I changed the system so that:

• Factorissimo interior surfaces are now completely excluded from The Cave’s Underground Lighting Mode.
• The Cave no longer overwrites Factorissimo’s internal daytime, brightness or frozen-time settings.
• Factorissimo now has full control over its own Interior Lighting system.
• Permanent Night still works normally outside the factory.
• The Darkness Infestation warning, 30-second timer, 12-tile lamp check and darkness enemy attacks are also disabled inside Factorissimo interiors.
• As soon as the player leaves the factory, The Cave’s normal darkness systems work again.

This compatibility work was honestly quite difficult and took me around four to five hours to investigate, test and code properly, because I had to make two completely separate mods work together without breaking either system.

Normally, this type of compatibility issue could also be reported to the Factorissimo developer, because it requires understanding how Factorissimo controls its internal surfaces. However, I decided to handle the compatibility directly inside The Cave, and it should now work correctly.

Please test the latest version with Permanent Night enabled and Interior Lighting researched. The factory interior should now light up correctly while the outside cave remains in permanent night.

This still needs more thorough testing, so if you notice any remaining bugs or anything behaving incorrectly, please let me know and I’ll investigate it.

Thank you for taking care of my concerns. I'll check it out and let you know.

(Looking at the incredible pace of your changelog, are you properly taking care of yourself? Are you giving yourself plenty of time away from the computer to do other things? Burnout is real, and FAR too many projects have disappeared because the devs pushed themselves too hard for too long and eventually were no longer able to face working on them. Please make sure that you are touching grass/going to the gym/etc. on a regular basis.)

Cheers, I really appreciate you looking out for me. I do spend a fair bit of time on the mod because I genuinely enjoy working on it, but I’m not glued to the computer all day. I’ve still got work, the gym, and plenty of other things going on.

You’re right about burnout though, and I’ll make sure I don’t overdo it. I’d much rather keep enjoying the mod and working on it for a long time than completely wear myself out.

Thanks again for the message, mate. It genuinely means a lot.

Cheers, I really appreciate you looking out for me. I do spend a fair bit of time on the mod because I genuinely enjoy working on it, but I’m not glued to the computer all day. I’ve still got work, the gym, and plenty of other things going on.

You’re right about burnout though, and I’ll make sure I don’t overdo it. I’d much rather keep enjoying the mod and working on it for a long time than completely wear myself out.

Glad to hear it!

Thanks again for the message, mate. It genuinely means a lot.

Of course! We all have to look out for each other, right? If you ever need to chat about life, the universe, and everything, just let me know. I may not have a lot of answers, but I know some great questions.

Absolutely, mate , couldn’t agree more. And likewise, if you ever fancy a chat about Factorio, life, or the meaning of everything, just give me a shout. I might not have all the answers either, but between us we can probably come up with a few decent questions 😄