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

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

@@ -0,0 +1,38 @@
+using XCEngine;
+
+namespace XCEngine.Rendering.Universal
+{
+    public sealed class LightingData
+    {
+        internal static readonly LightingData Default =
+            new LightingData(
+                DirectionalLightData.Default,
+                false,
+                0);
+
+        internal LightingData(
+            DirectionalLightData mainDirectionalLight,
+            bool hasMainDirectionalShadow,
+            int additionalLightCount)
+        {
+            this.mainDirectionalLight =
+                mainDirectionalLight ?? DirectionalLightData.Default;
+            this.hasMainDirectionalShadow =
+                hasMainDirectionalShadow;
+            this.additionalLightCount = additionalLightCount;
+        }
+
+        public DirectionalLightData mainDirectionalLight { get; }
+
+        public bool hasMainDirectionalShadow { get; }
+
+        public int additionalLightCount { get; }
+
+        public bool hasMainDirectionalLight =>
+            mainDirectionalLight.enabled;
+
+        public bool hasAdditionalLights =>
+            additionalLightCount > 0;
+    }
+}
+