AI Development Guide and M27AI v81 Devlog

maudlin27

v72 mini-update

Fixed AiX modifiers not applying to M27
Team messages warning about units such as enemy T3 arti should no longer trigger from friendly fire
Reworked brain setup to align with new FAF approach from June re aibrain classes
Fixed bug preventing upgrades beyond a gun upgrade being obtained, and added support for the new Cybran nano and aron extra range upgrades

Thanks to Ice-IX who flagged that AiX modifiers weren't working for M27, and someone else (forgot to note down who) highlighting the T3 arti detected message issue for friendly fire.

veteranashe

I missed your reply, I was just more curious if, you think, there would be some gain by having the ai count the mexes in the map and then use that to change build order and tactics.

maudlin27

v73 update
Mini-update - fixed incompatibility with M28 (that could break M28 if they were both in the same game), and updated some hardcoded values on energy storage to reflect the recent FAF balance changes requiring more energy for overcharge.

Laso

Hi, i played a game with M27. He builded some satellites and fired at my T3 arty. The satellites did damage to all schields and not only to the one it hits. it would be nice to take a look.
https://replay.faforever.com/20797133

maudlin27

@laso If the shields overlap then that's a FAF game balance feature - when 1 shield takes damage, any overlaping shield takes a percentage of the damage (around 10% I think)

maudlin27

@veteranashe While it's still far weaker than a human, the latest version of M28 (v32) should do better on 1 mex maps

maudlin27

v74 Update
Minor bugfixes that I noticed when I was testing M28 against M27 (relating to the FAF mobile factory change and the Aeon gun upgrade change)

maudlin27

v75-76 updates

v75 - AI ratings support added
v76 - Fixed an issue with M27 tracking weapon fire events (to support a relocation of the underlying code in FAF that took place last summer)
v76 - Fixed the warning message given to allies when a nuke launcher is detected, so instead of saying "M27OverseerEnemyNukeLaunchers" detected, it will now give the name of the unit.

maudlin27

v77-78 updates

v77 - Fixed a bug caused by a change in category in the paragon
v78 - Fixed a rare bug that could break M27's engineer logic

Resin_Smoker

So any advice (or examples) on setting up custom units to be used by the AI, as I'm sure this has changed since I was last around.

maudlin27

@Resin_Smoker Enable the mod with the custom units.

I.E. M27 and M28 should automatically make use of custom modded units, provided the categorisation of the custom unit blueprint aligns with a category M27/M28 is trying to build (the majority of the time I’d expect it to). You could use unit restrictions to disable default versions of units to make it more likely it picks the modded version instead but M28 will handle unit restrictions better

Resin_Smoker

@maudlin27 So just the unit categories is all that's needed... nice!

Now if someone could fix the custom unit icons so they work without having to copied into every factions folder that would be sweet.

maudlin27

Just a note that if you want to play M27 you'll need to play it on FAF Develop, as the last FAF release broke certain AI functionality and means M27 won't work. This should be fixed in the next FAF release.

Devyatyi9

i have a game crash with mod M27AI or M28AI
https://pastebin.com/T9hZyXY0

warning: (xsc9011) has no death weapon or the death weapon has an incorrect label!
warning: defaultunits.lua OnImpact: did not find a deathWep on the plane! Is the weapon defined in the blueprint? xsc9011
warning: Unable to load texture: c:\programdata\faforever\gamedata\units.nx2\units\urb2302\urb2302_specteam.dds

maudlin27

Not clear that it's M28 that's causing it, the mod list looks like it is quite long:
info: MOD LIST SET TO:
info: RNGAI (faf0863e-4c91-4bc0-ac2d-20e3f69432d5)
info: AI-Swarm (a13ac591-b2d9-4d94-0285-3d4b3cce6b97)
info: AllFactionsFixed (58c232c2-f7e8-4256-8892-85fbb9687a69)
info: AI-Uveso (62e2j64a-AIUV-112-89465-146as555a8u3)
info: M27AI (f27c55b4-v078-55b4-92b6-64398e75e23f)
info: OOF ACU Death Sound (BBEFBDF1-3C21-4CD6-89EE-86EA42218C0C)
info: Redux Strategic Icons Small (redux-icons-small-01)
info: M28AI (fnewm028-v115-55b4-92b6-64398e7ge43f)

This error appears a lot at the end of the log:
warning: Unable to load texture: c:\programdata\faforever\gamedata\units.nx2\units\urb2302\urb2302_specteam.dds
So it could be a graphical issue.

My suggestion would be to turn off as many mods as possible and see if you still get the error, and also post that error/link to the log on the technical support forum in discord (or here) to see if anyone else has an idea what the issue would be.

maudlin27

v79 Update
After one of the Rainbow Cup games on Adaptive Flooded Tabula Rasa where one of the M27 ACUs thought it could walk to another plateau (and ended up getting stuck underwater while its base was destroyed) I've updated M27 to make use of FAF's navigational mesh. Unlike M28 (which was ddesigned from the ground up with use of this navigational mesh in mind) M27's use of it is limited and also has the risk of unforseen issues, but my hope is that it ends up being slightly faster and a bit more accurate than M27's previous approach.

maudlin27

v80 Update
Fixed a bug from v79 that caused M27 to no longer build navy

Acknowledgements

Relent0r - highlighting that M27 wasn't building navy on a naval map

maudlin27

v81 Update
Fixed another bug from the navigational mesh changes which resulted in M27's initial build order being messed up (with the ACU not building any mexes)

Acknowledgements

Relent0r - Noticing M27's early game performance was significantly weaker than before

Spyder1495

Hello, I tried playing both M27 and M28 AI along with some other mods. They worked and fought great, but there were only 1 problem made me a bit unsatisfied. Only M28 can use Brewlan units set. M27 on the other hand, didn't run properly. If i let the utils.lua file of the Brewlan stay, M27 AIs won't do anything but standing. When i removed it, they worked again but no Brewlan unit was built (such as advanced T3 Mass Extractors or Field Engineers). I reported this once on FAF vault, can you try and update a new fix for this problem again please.

maudlin27

Hi, I'd recommend M28 for better mod compatibility. Although in theory M27 should work with unit mods, I'm not actively looking to expand it's compatibility, and in the case of BrewLAN as the FAF vault version is broken (at least the last few times I've checked) it's not something I'd be looking to fix at this stage (although if the FAF vault version does get fixed then I'd be open to investigating the issue you mention of M27 not working at all with the mod enabled)