Рандомизация параллакса в меню подключения (#1005)

* красива

* fix

Content.Client/Parallax/ParallaxControl.cs

@@ -1,10 +1,13 @@
 using System.Numerics;
+using System.Linq; // Sunrise-Edit
 using Content.Client.Parallax.Managers;
 using Robust.Client.Graphics;
 using Robust.Client.UserInterface;
 using Robust.Shared.Random;
 using Robust.Shared.Timing;
 using Robust.Shared.ViewVariables;
+using Robust.Shared.Prototypes; // Sunrise-Edit
+using Content.Shared._Sunrise.Lobby; // Sunrise-Edit
 
 namespace Content.Client.Parallax;
 
@@ -16,8 +19,12 @@ public sealed class ParallaxControl : Control
     [Dependency] private readonly IGameTiming _timing = default!;
     [Dependency] private readonly IParallaxManager _parallaxManager = default!;
     [Dependency] private readonly IRobustRandom _random = default!;
+    [Dependency] private readonly IPrototypeManager _prototypeManager = default!; // Sunrise-Edit
 
     [ViewVariables(VVAccess.ReadWrite)] public Vector2 Offset { get; set; }
+    [ViewVariables(VVAccess.ReadWrite)] public string CurrentParallax { get; private set; } = "FastSpace"; // Sunrise-Edit
+
+    private readonly HashSet<string> _invalidParallaxes = new(); // Sunrise-Edit
 
     public ParallaxControl()
     {
@@ -25,32 +32,74 @@ public sealed class ParallaxControl : Control
 
         Offset = new Vector2(_random.Next(0, 1000), _random.Next(0, 1000));
         RectClipContent = true;
-        _parallaxManager.LoadParallaxByName("FastSpace");
+        // Sunrise-Edit-Start
+        SelectRandomParallax();
+    }
+
+    private void SelectRandomParallax()
+    {
+        var parallaxes = _prototypeManager.EnumeratePrototypes<LobbyParallaxPrototype>()
+            .Where(p => !_invalidParallaxes.Contains(p.Parallax))
+            .ToList();
+        
+        if (parallaxes.Any())
+        {
+            var selectedParallax = _random.Pick(parallaxes);
+            CurrentParallax = selectedParallax.Parallax;
+        }
+        else
+        {
+            CurrentParallax = "FastSpace";
+        }
+        
+        _parallaxManager.LoadParallaxByName(CurrentParallax);
+        // Sunrise-Edit-End
     }
 
     protected override void Draw(DrawingHandleScreen handle)
     {
-        foreach (var layer in _parallaxManager.GetParallaxLayers("FastSpace"))
+        if (Size.X <= 0 || Size.Y <= 0)
+            return;
+        // Sunrise-Edit-Start
+        var layers = _parallaxManager.GetParallaxLayers(CurrentParallax).ToList();
+        if (!layers.Any())
+        {
+            _invalidParallaxes.Add(CurrentParallax);
+            SelectRandomParallax();
+            return;
+        }
+
+        var hasValidLayers = false;
+        foreach (var layer in layers)
         {
             var tex = layer.Texture;
-            var texSize = (tex.Size.X * (int) Size.X, tex.Size.Y * (int) Size.X) * layer.Config.Scale.Floored() / 1920;
-            var ourSize = PixelSize;
+            if (tex.Size.X <= 0 || tex.Size.Y <= 0)
+                continue;
 
-            var currentTime = (float) _timing.RealTime.TotalSeconds;
+            var scale = layer.Config.Scale.Floored();
+            if (scale.X <= 0 || scale.Y <= 0)
+                continue;
+
+            var texSize = new Vector2i(
+                (tex.Size.X * (int)Size.X) / 1920,
+                (tex.Size.Y * (int)Size.X) / 1920
+            ) * scale;
+
+            if (texSize.X <= 0 || texSize.Y <= 0)
+                continue;
+
+            hasValidLayers = true;
+            var ourSize = PixelSize;
+            var currentTime = (float)_timing.RealTime.TotalSeconds;
+            // Sunrise-Edit-End
             var offset = Offset + new Vector2(currentTime * 100f, currentTime * 0f);
 
             if (layer.Config.Tiled)
             {
-                // Multiply offset by slowness to match normal parallax
                 var scaledOffset = (offset * layer.Config.Slowness).Floored();
-
-                // Then modulo the scaled offset by the size to prevent drawing a bunch of offscreen tiles for really small images.
                 scaledOffset.X %= texSize.X;
                 scaledOffset.Y %= texSize.Y;
 
-                // Note: scaledOffset must never be below 0 or there will be visual issues.
-                // It could be allowed to be >= texSize on a given axis but that would be wasteful.
-
                 for (var x = -scaledOffset.X; x < ourSize.X; x += texSize.X)
                 {
                     for (var y = -scaledOffset.Y; y < ourSize.Y; y += texSize.Y)
@@ -65,6 +114,13 @@ public sealed class ParallaxControl : Control
                 handle.DrawTextureRect(tex, UIBox2.FromDimensions(origin, texSize));
             }
         }
+        // Sunrise-Edit-Start
+        if (!hasValidLayers)
+        {
+            _invalidParallaxes.Add(CurrentParallax);
+            SelectRandomParallax();
+        }
+        // Sunrise-Edit-End
     }
 }