- add: OldNeoInterface (#108)

* ebal

* setup gui

* AAAAAAAAAA EBLAN

Content.Client/MainMenu/BackgroundControl.cs

@@ -0,0 +1,52 @@
+using Robust.Client.Graphics;
+using Robust.Client.UserInterface.Controls;
+using Robust.Shared.Prototypes;
+
+namespace Content.Client.MainMenu;
+
+public sealed class BackgroundControl : TextureRect
+{
+    [Dependency] private readonly IClyde _clyde = default!;
+    [Dependency] private readonly IPrototypeManager _prototype = default!;
+
+    private IRenderTexture? _buffer;
+    private readonly ShaderInstance _glitchShader;
+
+    public BackgroundControl()
+    {
+        IoCManager.InjectDependencies(this);
+
+        _glitchShader = _prototype.Index<ShaderPrototype>("Cyberglitch").Instance().Duplicate();
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+        base.Dispose(disposing);
+
+        _buffer?.Dispose();
+    }
+
+    protected override void Resized()
+    {
+        base.Resized();
+
+        _buffer?.Dispose();
+        _buffer = _clyde.CreateRenderTarget(PixelSize, RenderTargetColorFormat.Rgba8Srgb, default);
+    }
+
+    protected override void Draw(DrawingHandleScreen handle)
+    {
+        if (_buffer is null)
+            return;
+
+        handle.RenderInRenderTarget(_buffer, () =>
+        {
+            base.Draw(handle);
+        }, Color.Transparent);
+
+        handle.UseShader(_glitchShader);
+
+        handle.DrawTextureRect(_buffer.Texture, PixelSizeBox);
+        handle.UseShader(null);
+    }
+}