refactor(srp): move rendering data ownership into universal package

managed/XCEngine.ScriptCore/Rendering/Universal/EnvironmentData.cs

@@ -0,0 +1,44 @@
+using XCEngine;
+
+namespace XCEngine.Rendering.Universal
+{
+    public sealed class EnvironmentData
+    {
+        internal static readonly EnvironmentData Default =
+            new EnvironmentData(
+                RenderEnvironmentMode.None,
+                new Color(0.18f, 0.36f, 0.74f, 1.0f),
+                new Color(0.78f, 0.84f, 0.92f, 1.0f),
+                new Color(0.92f, 0.93f, 0.95f, 1.0f));
+
+        internal EnvironmentData(
+            RenderEnvironmentMode mode,
+            Color skyboxTopColor,
+            Color skyboxHorizonColor,
+            Color skyboxBottomColor)
+        {
+            this.mode = mode;
+            this.skyboxTopColor = skyboxTopColor;
+            this.skyboxHorizonColor = skyboxHorizonColor;
+            this.skyboxBottomColor = skyboxBottomColor;
+        }
+
+        public RenderEnvironmentMode mode { get; }
+
+        public Color skyboxTopColor { get; }
+
+        public Color skyboxHorizonColor { get; }
+
+        public Color skyboxBottomColor { get; }
+
+        public bool hasProceduralSkybox =>
+            mode == RenderEnvironmentMode.ProceduralSkybox;
+
+        public bool hasMaterialSkybox =>
+            mode == RenderEnvironmentMode.MaterialSkybox;
+
+        public bool hasSkybox =>
+            hasProceduralSkybox || hasMaterialSkybox;
+    }
+}
+