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GChem - Chemical Warfare

Description Discussions18 Comments1036 Change Notes

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Content Type: Addon

Addon Type: Entity

Addon Tags: Fun, Realism

File Size

Posted

Updated

64.323 MB

Jul 24, 2020 @ 12:39pm

Aug 13, 2024 @ 5:13am

43 Change Notes ( view )

Required items

This item requires all of the following other items

JMod

Created by

Freaking Fission
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GChem Required Content

2 items

Description

GChem adds semi-realistic Chemical Warfare Agents to Garry's Mod with 8 unique gases!

This is the first mod I have ever released! Feel free to offer any suggestions or criticisms you have.

If you wish to run this on a server, please refer to the pinned Config Breakdown discussion. It should help with tweaking considerably! Note: While server usage was considerable before, several optimization updates have dramatically reduced network and server usage.

Gchem will only be receiving bugfixes from here on out, I have moved on and do not expect to return to GChem. Feel free to decompile GChem and modify it to your liking, just credit me if you post a modification.

Features

8 Unique gases
6 New Weapons
Chemical Exposure system modeled off of real-life toxicity data
Works on NPCs
Some chemicals stick to objects and evaporate over time
Volumetric Gas that fills rooms and is blown in the wind
Non-Volumetric (Default) Optimized particles that allow people to drench maps in gas
Gas Bombs, Canisters, and Grenades
A Gas Mask and Chemical Suit
Compatible with Jmod Gas Mask, Respirator, and HAZMAT Suit
Compatible with the gmod4phun Gas Mask/Contagion Gas Mask[github.com], the Metro Gas Mask and the Pressurized External Suit
Compatible with Stormfox Weather
Compatible with Wiremod
Hint system to make learning easier
Tweak and balance gases to your liking with the config located at garrysmod/data/gchem_config

Meet The Gases

Chlorine - The first successful gas deployed in World War 1, Chlorine is a sickly Green gas that immediately burns the eyes and lungs
Phosgene - Responsible for 90% of Gas Deaths in World War 1, Phosgene is a colorless (or near colorless ingame) gas with light initial effects, but is extremely toxic 2 minutes after exposure
Green-Cross - A 50-50 mix of Chlorine and Phosgene, Green-Cross acts like a less potent form of chlorine, attacking the eyes and lungs, however, the phosgene mixed in proves to be anything from a nuisance to deadly depending on the dose
Mustard - Responsible for 80% of British Gas Casualties in World War 1, Mustard Gas is an yellow gas that attacks the eyes, lungs and skin, causing coughing and blindness 8 seconds after exposure, and debilitating skin burns 2 minutes after exposure in severe cases. Mustard gas also sticks to objects, requiring decontamination before it can be safely used again
Sarin - Discovered by the germans just before WW2, Sarin Gas is an extremely toxic colorless, odorless gas that causes vision dimming, twitching, heavy breathing, and death, followed by a fit of convulsions. Primarily an inhalation hazard, some Sarin is absorbed through skin, harming people wearing gas masks.
VX - One of the most toxic substances known to mankind, VX Gas is an extremely toxic colorless, odorless, persistent gas that causes vision dimming, twitching, heavy breathing, and death, followed by convulsions. Notably more toxic then Sarin, VX also sticks to objects just like mustard gas, requiring decontamination before safe use. Further, VX is much more capable of being absorbed through skin then other chemical agents, meaning full hazmat suits are necessary to survive VX gas.
Hydrogen Cyanide - Infamously used in the systematic murder of 6 million jews during World War 2, Hydrogen Cyanide is a colorless, odorless, lighter-than-air gas that causes confusion and death 8 seconds after exposure. Extremely deadly indoors, but outdoor use requires massive concentrations of gas, also, degrades JMOD Gas Mask filters 3 times faster then other gases.
CS Gas - Commonly used as a riot control agent, CS Gas is a White smoke that causes coughing and blindness in those exposed to it and proves generally non-lethal, except in cases of massive exposure, such as being trapped in a small room.

Methods of Exposure

Face Exposure - Every gas causes effects when inhaled, however, full face protection will completely stop this method of exposure, while Jmod Respirators will halve the dosage
Skin Exposure - Some gases can be absorbed through the skin, albiet at a fraction of inhaled gas, so gas masks still offer considerable protection. Mustard Gas, Sarin, and VX all have this ability
Contamination - Some gases stick to objects, slowly evaporating off objects, gassing anyone nearby, and if the gas is skin-soluble, liquid will be absorbed through the skin. Further, contamination is transferred on contact, making contaminated objects extra hazardous. Mustard gas and VX both have this ability

Protection

Gas Mask - Provides full face protection with some vision limitation, but no slowness or visible model. Recommended to be used only on models with existing gas masks, type /dropmask in chat to take off
Chemical Suit - Provides skin protection to players, will also change their playermodel to a chemical suit, unless the convar gc_suitmodel is set to false, type /dropsuit in chat to take off
Jmod Gas Mask - Provides full face protection, albiet with limited vision, slight slowness, and a model visible on the player model. Recommended to be used on models without an existing mask, use the command jmod_ez_inv to toggle
Jmod Respirator - Provides half face protection, cutting down dosage by half, but removing the players ability to smell gas. No vision limitation, but it does slow players slightly and has a visible model, use the command jmod_ez_inv to toggle
Jmod HAZMAT Suit - Provides both full face and skin protection, but changes playermodels, slows players, and limits their vision, type *drop suit* in chat to take off
Decontamination - To avoid gassing yourself and those around you, you must spray yourself with a Decontamination Kit, type /decontaminate in chat, or stand in Stormfox rain to decontaminate
Chemical Detector - Detector capable of detecting all chemical agents faster than smelling them can, including agents without odor and while wearing a gas mask, type /dropdetector in chat to drop

The addons Fire Extinguisher, Basic Vignette, Splinter Cell: Blacklist Chemsuit Goons, US Army M2 Flamethrower SWEP, and Masks and Helmets H.U.D. Overlay Mod addons have had all the required assets from them merged into GChem due to receiving multiple complaints. If you are the developer the any of the addons listed, I have given credit to your mod in the description continued discussion along with a link to your mod. If you have issues with the merging, please contact me to resolve.

Ran out of space for the description, so please refer to the Pinned Description Continued Discussion for rest of the description

Popular Discussions View All (18)

237

Mar 10 @ 7:21am

PINNED: Suggestions and Bug Reports

Freaking Fission

Mar 10 @ 7:29am

PINNED: Config Breakdown

Freaking Fission

Jan 24, 2023 @ 11:32am

Issues

Chimera (Lost Profile)

1,036 Comments

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calebguy1983 Apr 23 @ 8:16pm

if i do so little as have the mod, both my playermodel and my weapons disappear

Norseman Apr 12 @ 1:51am

with the m2a2 it won't let me switch gasses

$$$$$MR.Krabs$$$$$ Mar 31 @ 4:15pm

the blinding is annoying

indeepj Mar 11 @ 10:26am

stuart you arent devout enough

Edward Mar 10 @ 8:37am

Please come to our lord and saviour Jesus Christ and please read the Bible and please do not use swear on anything or use bad words and foul words as the lord forbids it and do not believe in evolution as it is a distraction from the enemy to hide our lord and savior Jesus Christ from you and please do not celebrate pagan aspects of holidays and please ask forgiveness and repent to our lord and savior Jesus Christ