namespace AcDream.App.Rendering.Wb;

/// <summary>
/// Process-lifetime cache of <c>ACDREAM_USE_WB_FOUNDATION</c> env var.
/// Read once at static-init time; all consumers import this rather than
/// re-reading the env var per call (env-var lookups on Windows are not
/// free at hot-path cadence).
///
/// <para>
/// Set <c>ACDREAM_USE_WB_FOUNDATION=1</c> to route static-scenery + atlas
/// content through WB's <c>ObjectMeshManager</c>; per-instance customized
/// content (server <c>CreateObject</c> entities) takes the existing
/// <see cref="TextureCache.GetOrUploadWithPaletteOverride"/> path either
/// way. Flag becomes default-on at end of Phase N.4 after visual
/// verification.
/// </para>
/// </summary>
public static class WbFoundationFlag
{
    public static bool IsEnabled { get; } =
        System.Environment.GetEnvironmentVariable("ACDREAM_USE_WB_FOUNDATION") == "1";
}