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Half-Life 2 Chaos

Installing

  1. Install Source SDK Base 2013 Singleplayer from Steam.
  2. Switch the SDK to the 'upcoming' beta. Right click on it in Steam and then click Properties... -> Betas and change the dropdown None to upcoming - upcoming. Changing this setting will prevent immediate crashes.
  3. Download latest hl2c.zip file from the releases page.
  4. Extract the hl2chaos folder from the zip file into Steam/steamapps/sourcemods/. The path to gameinfo.txt should look like this: Steam/steamapps/sourcemods/hl2chaos/gameinfo.txt (see picture below). Do the same for ep1chaos and ep2chaos if you want to play Chaos in Half-Life 2: Episode One/Two.
  5. Restart Steam for the mod(s) to appear in your library.

image

For Half-Life 2 Chaos, but not the Episodes, you must have Half-Life 2 installed for the mod to find the levels.

As of version 0.2.2, you no longer need to copy map files into the maps folders.

If you want to play Chaos in other mods or Half-Life: Source, you can try, but there can be several issues that we wouldn't be able to fix.

Issues

If you experience bugs with the mod, you can submit a bug report here.

Wiki

Check our GitHub wiki if you're looking for info about how Half-Life 2 Chaos works.

Building from source for Linux

No build enviroment setup required.

  1. git clone --depth=1 https://github.com/Pinsplash/halflife2chaos
  2. cd halflife2chaos
  3. ./sp/src/createallprojects // TODO: this likely can be done with creategameprojects.
  4. make -f ./sp/src/everything.mak client_hl2 server_hl2
  5. ln -s $(pwd)/sp/game/mod_hl2/bin ./sourcemods/hl2chaos/ Link bin directory from our build directory
  6. mkdir ~/.steam/steam/steamapps/sourcemods/hl2chaos; sudo mount --bind $(pwd)/sourcemods/hl2chaos ~/.steam/steam/steamapps/sourcemods/hl2chaos Note the use of the bind mount instead of a symbolic link. Steam won't detect symbolic links. You can use mv or cp instead, if you don't care.

Compiling for the episodes is an excercise for the reader. (Should be similar but with mod_episodic, client_episodic and server_episodic.)

Effect Voting on Twitch

If you stream on Twitch, you can make it so that viewers can vote for effects by sending chat messages. These instructions are specifically for Windows. If you're on Linux, you can figure it out.

  1. Download and install Python 3.11 from here.
  2. Download the code. This is the green button that says "code" at the top. Click "Download ZIP" unless you want to use GitHub Desktop for some reason.
  3. Extract the contents to any place on your computer. The only part you need are the files in the twitch-integration folder.
  4. Press the Windows logo on your keyboard and R at the same time. It should bring up a small window named 'Run'. Type cmd in the text box and then click 'OK'. It should bring up a black text box.
  5. Select the extracted requirements.txt in File Explorer and view the file's properties. Copy the file path next to "Location".
  6. In cmd.exe, type cd followed by a space, then paste the file path and press Enter.
  7. Now type py -m pip install -U -r requirements.txt. It should do a bunch of stuff.
  8. Go to twitch dev apps and register a new app.
  9. The name can be anything. In "OAuth Redirect URLs" put http://localhost:17563. The Category should be Game Integration.
  10. Press 'Manage' on your newly created app.
  11. Copy 'Client ID', create a new secret, and copy 'Client Secret'. Both of these will need to be remembered, so you may want to keep a note of them somewhere on your computer.
  12. In OBS, create a new text source.
  13. Open Tools -> Scripts -> Python Settings. Change the Install Path to the folder where Python 3.11 is installed. If you allowed it to install to it's default place, this should be C:/Users/___/AppData/Local/Programs/Python/Python311. Replace ___ with your Windows user name. You can find what the name is by simply looking in C:/Users. If set correctly, it should say "Loaded Python Version: 3.11".
  14. Click on "Scripts", click the + button, and select twitch_integration.py from the twitch-integration folder you extracted before.
  15. Fill in 'App id' with the Client ID from Twitch and 'App secret' with the Client Secret from Twitch. Set 'Target channel' to your channel (i.e acuifex for twitch.tv/acuifex). Set 'Text Source' to your newly created text source's name. Set 'RCON password' to a password of your choice.
  16. Press 'Reconnect to twitch' if you didn't automatically connect.
  17. The script should open Twitch authorization page. Allow the app to do things.
  18. In Steam, right click on the mod and then click "Properties...". In 'LAUNCH OPTIONS', put +developer 0 -usercon +ip 127.0.0.1 +rcon_password ___ +net_start +chaos_vote_enable 1. Replace ___ with the RCON password that you entered in OBS. The +developer 0 part is necessary for some reason, despite not seeming like it should be. You will also have to do this in Ep1 & 2 chaos if you want to use Twitch voting in them.

It should work now. If it doesn't, 'Script Log' button in OBS might have useful info. You can test voting commands by typing in your Twitch chat, even if you're not streaming.

To remove Twitch integration, you can simply clear out the mod's launch options and select twitch-integration.py in OBS and then click the minus button.

Tips

  • If issues arise while playing, try chaos_restart in the console. This should set everything back to normal and restart the map.
  • To modify things about Chaos like effect duration and probability, edit hl2chaos/cfg/autoexec.cfg.
  • Effect groups can be changed in groups.cfg.
  • Want a specific effect? Use chaos_test_effect followed by a number. You can get any effect's number through chaos_print.
  • Any CFG files you change must have their change reflected in the same file in all three mods if you wish for the change to apply in all of them. You can simply copy the file into the other two mod folders and replace the old version.
  • Saving often will help you progress faster.
  • If necessary, you can leave important NPCs behind, except Alyx in the driving parts of Episode Two. They will teleport into the next level with you.
  • Enemy NPCs spawned by Chaos are gone forever once killed and remain wounded forever once hurt (unless they regenerate health), even if you reload a save, so don't give up on them.
  • Fast weapon switch is best left off to easily know which weapons you have.
  • Quickclip will not disable weapon switching if enabled by Chaos.
  • Doing ep1_citadel_03 out of order is not recommended.
  • Make keybinds for loading quicksaves and autosaves.

Some effect-specific advice, if you don't wish to figure it out on your own:

  • Zero Gravity and Invert Gravity: You can stick to the ground as long as you don't jump or move off it. Land in water to avoid fall damage. Landing on slopes can prevent fall damage.
  • Water World: Only the crowbar, gravity gun, pistol, and crossbow can be used underwater. Drowning damage heals once you leave water. If Superhot is on, stay still to minimize drowning damage. If Supercold is on, move around to minimize drowning damage. You can't drown in vehicles.
  • Annoying Alyx: Don't use burst damage weapons such as the shotgun. Alyx can only lose 25% of her health at once and regenerates health, so will take at least 5 hits to kill.
  • Sometimes things are invisible with Orthographic Camera. Turning on the flashlight may fix it.

Certain console variables are changed in this mod that you might want your own settings for. These settings have been put in their own CFG files so you can control what they are, except when chaos effects modify them.

  • pitch.cfg: Sets m_pitch, the vertical sensitivity. Default 0.022.
  • yaw.cfg: Sets m_yaw, the horizontal sensitivity. Default 0.022.
  • portalsopenall.cfg: Sets r_portalsopenall. Force-opens all areaportals. Most users will want to use 1 because if 0, areas of levels may become invisible until you enter them. This was intended to help performance, but Chaos can disrupt this feature due to sequence breaking. Normally the default is 0, but in Chaos, it's 1.

Known issues

  • Sometimes the bar at the top won't appear after loading a save/map. The mod is still working. The bar should appear once the next effect starts.
  • The "Saved..." message may not appear. The save is still made.
  • The car compass HUD element does not display correctly.
  • If you play maps from something that isn't Half-Life 2/Episode One/Two, the "Node graph out of date" message will appear every time you go to a new map for the first time. This message is harmless, but if you wish, you can copy the .AIN files from the mod as well. It will also stop appearing after you've visited each map a single time, because the mod has now generated its own copy of the node graph. The .AIN files are included for Half-Life 2/Episode One/Two.
  • If you take a weird path through d3_c17_13, you may not activate the strider in the car pit. You will have to kill it before the intended route can continue.
  • Super Grab sometimes makes it harder to grab things.
  • Sometimes things are invisible with Orthographic Camera. Turning on the flashlight may fix it.
  • Collisions can be weird when Slow Physics is on.

Thanks for big and small bits of help

  • Blixibon
  • tmp64
  • BoxFigs
  • B.A.S.E
  • TeamSpen210
  • craftablescience
  • EchoesForeAndAft
  • ender
  • 2838
  • UncraftedName
  • tmob03
  • ntrf