add: LoadingScene, ProxyNode

src/Generators/RegistryEntityGenerator.cs

@@ -0,0 +1,33 @@
+using System.Linq;
+using System.Text;
+using Microsoft.CodeAnalysis;
+
+namespace Polonium.Generators.Generators;
+[Generator]
+public class RegistryEntityGenerator : AssetProcessGenerator
+{
+    public override void Execute(GeneratorExecutionContext context)
+    {
+        if (!(context.SyntaxReceiver is ClassSyntaxReceiver receiver))
+            return;
+        Compilation compilation = context.Compilation;
+        INamedTypeSymbol? regEntity = compilation.GetTypeByMetadataName("Polonium.Attributes.RegistryEntity");
+        foreach (var derivedClassDeclaration in receiver.Classes)
+        {
+            SemanticModel model = compilation.GetSemanticModel(derivedClassDeclaration.SyntaxTree);
+            if (
+                model.GetDeclaredSymbol(derivedClassDeclaration) is INamedTypeSymbol symbol && 
+                symbol.GetAttributes().Any(x => SymbolEqualityComparer.Default.Equals(x.AttributeClass, regEntity))
+                )
+            {
+                StringBuilder sb = new();
+                sb
+                    .AppendLine("public static partial class GlobalRegistry")
+                    .AppendLine("{")
+                    .AppendLine($"    public static {symbol.ToDisplayString()} {symbol.Name} {{ get; set; }}  ")
+                    .AppendLine("}");
+                context.AddSource($"RegistryEntity_{symbol.Name}.g.cs", sb.ToString());
+            }
+        }
+    }
+}