Synopsis

UniversalUnityHooks aims to bring a adaptable modding API to any unity game. This is acomplished by hooking into methods found in the Assembly-CSharp.dll and modifying them while avoiding having to decompile and recompile.

Code Example

public class printStart
{
	[Hook("SvNetMan.StartServerNetwork")]
	public static void startServerNetwork(SvNetMan man)
	{
		Debug.Log("Plugin Loaded!");
	}

}

In this example the game hooks the examples ServerStartNetwork method in the SvNetMan Class, and prints Plugin Loaded when the server connects to the network

Motivation

The inital motivation behind the project was to provide a way for server owners to develop plugins for the game Broke Protocol (https://brokeprotocol.com). But due to the way unity games are made, this program can be ported to any other game relatively easily

Installation

Assuming Linux (x64)

For windows:

• Build the files from Visual Studio or under Bash For Windows

Prerequites:

• mono-complete
• mono.cecil.inject (https://github.com/denikson/Mono.Cecil.Inject/releases)

To build the files from source and install them simply:

• If you need to add the references to Mono, they're in the Mono folder.
• Build HookAttribute with xbuild HookAttribute.csproj and place the HookAttribute.dll in $Gamedir/Game_Data/Managed
• Build Hooks Injector with xbuild HooksInjector.csproj and place HooksInjector.exe along with the Mono.Cecil dll's in $Gamedir

To run the program do mono HooksInjector.exe(linux) or just run the (windows)

Write your scripts and place them in the plugins directory of $Gamedir (Created after running HooksInjector)

API Reference

The program is fairly straight forward, to hook a method, simply put [Hook("Class.Method")] Then supply the instance as the first variable, and the rest of the variables as refs. So if I were to want to modify Damage of the SvPlayer Class with variables DamageIndex, Amount, Attacker, and Collider, That would become

    [Hook("SvPlayer.Damage")]
    public static bool Damage(SvPlayer player, ref DamageIndex type, ref float amount, ref ShPlayer attacker, ref Collider collider)

License

This code is licenced under the MIT Licence, Information can be found by clicking on it at the top of the repository.

Credits

Ardivaba: https://github.com/Ardivaba