Temporary(?) Fix for MMod compatibility with reUpdate after 20th Anniversary Patch

[mantazzo]

Not really an "issue", but I found a workaround to fix the loading to have MMod working with the Anniversary Patch (reUpdate patch 2.0.0.2 as of writing - doesn't use the latest version of HL2 yet, but it should still apply the same).

1. Make sure you have MMod installed, HL2:U installed and reUpdate applied.
2. Go to "steamapps/common/Half Life 2 Update/hl2/" and edit gameinfo.txt file - I suggest to comment out the reUpdate lines in the file using "//". It should look something like this:

3. Go to "steamapps/sourcemods/HL2MMod_HL2U/" and edit the game.info.txt file - you need to add the following lines to the file:
   game+mod "|all_source_engine_paths|../Half-Life 2 Update/hl2/hl2_reupdate_fix.vpk"
game+mod "|all_source_engine_paths|../Half-Life 2 Update/hl2/hl2_reupdate_20th_textures.vpk"
   You should likely add them near the "hl2_pak.vpk" slot.
   It should look something like this:

4. Launch the MMod version and you're good to go!
   Unfortunately, as a side-effect, you will not be able to play the normal MMod-less version. if you want to go back to playing the standard version, follow Step 2 and instead of commenting the lines, just do the opposite, as they should be commented out if you did everything correctly.

Q: What happens if you don't comment out the lines in Step 2?
Well... The game rendering fully breaks. Most of the stuff is barely visible or rendered completely incorrectly.

Q: Can this possibly be automated, or can the rendering issues be fixed somehow?
No idea. I'm too inexperienced in Source Engine to answer the rendering question. As for automating - I assume this could be some sort of a "bonus fix" if anybody wants to use that.

[megakarlach]

Thanks for that workaround through, and by the way MMOD has released a new 20th anniversary patch recently.

Step 2 can be skipped now, users just need to install MMOD as normal, then install the official MMOD 20th anniversary patch.

After that, grab the gameinfo.txt file below, replace the old one from "V:\Steam\steamapps\sourcemods\HL2MMod_HL2U":
gameinfo.txt

Boot the game as normal and it should work (currently i'm testing this on the newer version of reUpdate which was yet to be released, while also including new map changes).

If there are any issues when playing with MMOD, try to play the original HL2 with MMOD while having that official 20th anniversary patch and see if there's any issues on that aswell, if it was, then it's MMOD problem, otherwise it's reUpdate related and you need to do the Step 2 workaround to commenting out the files (except the "hl2_reupdate_20th_textures.vpk" since this can be safely mounted without breaking anything).

[mantazzo]

To be fair, their anniversary patch is basically just fixing the gameinfo.txt for most of the games (except for HL2U because of course there is no official patch), so I think you can even skip getting the patch if you don't plan on playing original HL2.
Nevertheless, seems like everything works as intended with your gameinfo file. Thanks for looking into it.
Looking forward to future updates!