Directory.Build.props

<Project>
  <Import Project="$(MSBuildThisFileDirectory).env.props"
    Condition="Exists('$(MSBuildThisFileDirectory).env.props')" />

  <PropertyGroup>
    <!--
      Resolution order:
      1. /p:GameDir=... supplied on the command line
      2. REALTIMEWEATHER_GAME_DIR from the process environment
      3. REALTIMEWEATHER_GAME_DIR declared in the ignored .env.props file
    -->
    <GameDir Condition="'$(GameDir)' == '' and '$(REALTIMEWEATHER_GAME_DIR)' != ''">$(REALTIMEWEATHER_GAME_DIR)</GameDir>
  </PropertyGroup>

  <Target Name="ValidateRealTimeWeatherGameDir"
    BeforeTargets="ResolveAssemblyReferences"
    Condition="'$(UsesGameAssemblies)' == 'true'">
    <Error Condition="'$(GameDir)' == ''"
      Text="GameDir is not configured. Copy .env.props.example to .env.props and set REALTIMEWEATHER_GAME_DIR, set that environment variable in the shell, or pass /p:GameDir=&quot;...&quot;." />
    <Error Condition="'$(GameDir)' != '' and !Exists('$(GameDir)\Chill With You_Data\Managed\Assembly-CSharp.dll')"
      Text="GameDir does not point to a valid Chill with You installation: $(GameDir)" />
    <Error Condition="'$(GameDir)' != '' and !Exists('$(GameDir)\BepInEx\core\BepInEx.dll')"
      Text="BepInEx was not found under GameDir: $(GameDir)" />
  </Target>
</Project>