Creating a C# class library project

How to set up your project for editing and compiling

We will be creating a Library project written in C# targeting all platforms

First create a new project and choose "Class Library" - "A project for creating a classlibrary that targets .NET or .NET Standard"

Then write a name into the Project name field, such as "MyFirstPlugin" and click "Next"

Next ensure you have ".NET 6.0 (Long-term support)" selected as your Framework and click "Create"

When the project is finished creating you should see "Class1.cs" open

Click Project > Edit Project File and replace it with the following

The following project settings assume you have r2modman installed in the Default location with BepInEx installed and run at least once

You can change which r2modman profile is used by editing the Profile property Additionally, you can also change the BepInEx path to your preferred location by editing the BepInEx property

<Project Sdk="Microsoft.NET.Sdk">
	<PropertyGroup>

		<!--
		Use the following property to set your preferred r2modman profile
		-->
		<Profile>Default</Profile>

		<TargetFramework>net6.0</TargetFramework>
		<ImplicitUsings>enable</ImplicitUsings>
		<Nullable>enable</Nullable>
		<DebugType>None</DebugType>
		<AssemblyName>$(SolutionName)</AssemblyName>
		<RootNamespace>$(SolutionName)</RootNamespace>
		<BepInEx>$(AppData)\r2modmanPlus-local\GTFO\profiles\$(Profile)\BepInEx</BepInEx>
		<BuildDirectory>$(BepInEx)\plugins\$(SolutionName)\</BuildDirectory>
		<OutputPath>$(BuildDirectory)</OutputPath>	
		<AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
	</PropertyGroup>
	<Target Name="PostBuild" BeforeTargets="PostBuildEvent">
		<Delete Files="$(OutputPath)$(AssemblyName).deps.json" />
	</Target>
	<ItemGroup>
		<Reference Include="$(BepInEx)\core\0Harmony.dll" Private="false" />
		<Reference Include="$(BepInEx)\core\BepInEx.Core.dll" Private="false" />
		<Reference Include="$(BepInEx)\core\BepInEx.Unity.IL2CPP.dll" Private="false" />
		<Reference Include="$(BepInEx)\core\Il2CppInterop.Common.dll" Private="false" />
		<Reference Include="$(BepInEx)\core\Il2CppInterop.Runtime.dll" Private="false" />
		<Reference Include="$(BepInEx)\interop\*.dll" Private="false" />
		<Reference Remove="$(BepInEx)\interop\netstandard.dll" />
	</ItemGroup>
</Project>

Finally save the changes to the csproj file

You should now be ready to create your Plugin class