Enable nuget package push

Author: thomasvt

.github/workflows/nuget-publish.yml

@@ -0,0 +1,30 @@
+name: Publish NuGet package
+
+on:
+  push:
+    tags:
+      - 'v*' # Trigger on version tags like v1.2.3
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '8.x'
+
+      - name: Restore dependencies
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build --configuration Release --no-restore
+
+      - name: Pack
+        run: dotnet pack --configuration Release --no-build --output ./nupkg
+
+      - name: Publish to NuGet
+        run: dotnet nuget push ./nupkg/*.nupkg --api-key ${{ secrets.NUGET_API_KEY }} --source https://api.nuget.org/v3/index.json

Box2dNet/Box2dNet.csproj

@@ -5,8 +5,23 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
+    <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
+    <Title>Box2d v3 for .NET</Title>
+    <Authors>Thomas Vantroyen</Authors>
+    <Description>A thin Box2D v3 .NET wrapper that stays true to the original API.</Description>
+    <PackageProjectUrl>https://github.com/thomasvt/Box2D3Net</PackageProjectUrl>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
+    <RepositoryUrl>https://github.com/thomasvt/Box2D3Net</RepositoryUrl>
+	  <Version>3.1.0.0</Version>
   </PropertyGroup>
 
+  <ItemGroup>
+    <None Include="..\README.md">
+      <Pack>True</Pack>
+      <PackagePath>\</PackagePath>
+    </None>
+  </ItemGroup>
+
   <ItemGroup>
     <None Update="box2d.dll">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>