Parallax refactors (#7654)

Content.Client/Parallax/Managers/IParallaxManager.cs

@@ -1,12 +1,35 @@
 using System;
 using Robust.Client.Graphics;
+using Content.Client.Parallax;
 
-namespace Content.Client.Parallax.Managers
+namespace Content.Client.Parallax.Managers;
+
+public interface IParallaxManager
 {
-    public interface IParallaxManager
-    {
-        event Action<Texture>? OnTextureLoaded;
-        Texture? ParallaxTexture { get; }
-        void LoadParallax();
-    }
+    /// <summary>
+    /// The current parallax.
+    /// Changing this causes a new parallax to be loaded (eventually).
+    /// Do not alter until prototype manager is available.
+    /// Useful "csi" input for testing new parallaxes:
+    /// using Content.Client.Parallax.Managers; IoCManager.Resolve<IParallaxManager>().ParallaxName = "test";
+    /// </summary>
+    string ParallaxName { get; set; }
+
+    /// <summary>
+    /// All WorldHomePosition values are offset by this.
+    /// </summary>
+    Vector2 ParallaxAnchor { get; set; }
+
+    /// <summary>
+    /// The layers of the currently loaded parallax.
+    /// This will change on a whim without notification.
+    /// </summary>
+    ParallaxLayerPrepared[] ParallaxLayers { get; }
+
+    /// <summary>
+    /// Used to initialize the manager.
+    /// Do not call until prototype manager is available.
+    /// </summary>
+    void LoadParallax();
 }
+