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Stealth 2.1 (Improved Stealth Mod)

Originally by -|Sparky|-, then by MaxShadow; fixed up and reuploaded with their permission by TOASTEngineer, maintained by Hidden.



Check the first screenshot on this page; that's where the menu is. Everything inside has help text. If you'd like them translated to your language, you can make and send your own stealthmod.properties file to us.
You can control the music's volume in the game's main menu.

By default, this mod supports the stuff listed below in "Compatibilities". If you want more, go to steamapps/common/GarrysMod/garrysmod/data/stealth, where you will find these files:

• ignoresounds.txt (NPCs will ignore any sounds listed here)
  
• npc.txt (NPCs in here will have sight, hearing and tactics adjusted)
  
• silent.txt (weapons listed here won't be audible to NPCs)
  
• suppressed.txt (guns with unremovable suppressors, or just quiet guns)

If you want to add to "npc", "silent" or "suppressed", browse the spawnmenu for the weapon/NPC you want, right click it, select "Copy to clipboard", paste it in the correct list and save the file.
For "ignoresounds", turn on "Dump sound names" in the server settings menu, play the sound you want, open the console and copy what it said.
In both cases, each entry must be in a new line, with no spaces.

These instructions are for the default HUD. You may install a custom one.
The greyscale gauge shows how visible you are. The colored gauge shows how close you are to being spotted.
The arrow points to the enemy that is most likely to spot you.
The circle shows your status. This can be green (Calm), red (Alert) or flashing yellow (Evasion).


You can actually be sneaky now: Moving slowly, keeping your distance, lowering your stance, being quiet, staying in the dark, and even painting yourself to match your surroundings will make it harder for enemies to see you.
Enemies will check suspicious sounds and any bodies you leave behind (if Keep Corpses is on). You can put them to sleep and move their bodies to hide them.
There are some cool gadgets too: a throwable proximity sensor, which shows enemies through walls, a tranquilizer gun and a stun baton, for putting enemies to sleep, a decoy grenade, which makes a distracting sound, and an invisibility cloak, which does what the name says (and needs a keybind), but burns through your suit energy and doesn't make you silent.
If an enemy spots you, they'll call for backup, causing an Alert.
If you break line of sight with all your assailants, you go into Evasion. Avoid detection for some time and they'll call off the search and become Calm again, albeit more carful now that they know you're around.


NPCs:

• Combine Soldier
  
• Metropolice

Weapons:

• CW 2.0
  
• FA:S 2 Alpha
  
• TFA Official Weapons
  
• ArcCW
  
• Arc9
  
• MW Base
  
• Half Life 2
  
• Half Life Renaissance
  
• The most popular M9k weapons

Other:

• Cardboard Box
  
• Prone Mod

If you're a modder and want to support this in your custom HUD, you can use the "stealthmod" global table:
-stealthmod.enablehud: (bool) Enables or disables the default HUD.
-stealthmod.luminocity: (0 to 255) Stores how visible LocalPlayer() currently is.
-stealthmod.alertdanger: (0 to 255) How close LocalPlayer() is to detection.

Obviously, don't run other versions of this mod along with it.

Anti-FriendlyFire mods and any mods that change NPC relationships will break this, since it works by making enemies friendly until they're supposed to see you.

Some players reported being totally invisible to NPCs. I never ran into this bug, need more info.

Enemies may ignore other NPCs upon seeing you. Probably hardcoded behaviour.

Atmos lighting does effect visibility, but it's finicky. Still trying to figure out how to improve that.