Added obsolete markers to old attributes

- Migrated old attributes to Legacy

Attributes/UTAttributes.cs

@@ -377,23 +377,27 @@ public PopupAttribute(string methodName) {
       this.methodName = methodName;
     }
 
+    [Obsolete("Deprecated since UdonToolkit 0.4.0, use the other Popup signatures")]
     public PopupAttribute(PopupSource sourceType, string methodName) {
       this.sourceType = sourceType;
       this.methodName = methodName;
     }
 
+    [Obsolete("Deprecated since UdonToolkit 0.4.0, use the other Popup signatures")]
     public PopupAttribute(PopupSource sourceType, string methodName, ShaderPropType shaderPropType) {
       this.sourceType = sourceType;
       this.methodName = methodName;
       this.shaderPropType = shaderPropType;
     }
 
+    [Obsolete("Deprecated since UdonToolkit 0.4.0, use the other Popup signatures")]
     public PopupAttribute(PopupSource sourceType, string methodName, bool hideLabel) {
       this.sourceType = sourceType;
       this.methodName = methodName;
       this.hideLabel = hideLabel;
     }
 
+    [Obsolete("Deprecated since UdonToolkit 0.4.0, use the other Popup signatures")]
     public PopupAttribute(PopupSource sourceType, string methodName, ShaderPropType shaderPropType, bool hideLabel) {
       this.sourceType = sourceType;
       this.methodName = methodName;

Legacy/UTAttributes_Legacy.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Linq;
+using UdonSharp;
+using UnityEngine;
+using VRC.Udon.Editor.ProgramSources;
+
+namespace UdonToolkit.Legacy {
+  [Obsolete("This attribute is not needed anymore as it is only used with now deprecated Controllers. Learn more: https://l.vrchat.sh/utV4Migrate")]
+  [AttributeUsage(AttributeTargets.Class)]
+  public class ControlledBehaviourAttribute : Attribute {
+    public UdonProgramAsset uB;
+
+    public ControlledBehaviourAttribute(Type T) {
+      var assets = Resources.FindObjectsOfTypeAll(typeof(UdonSharpProgramAsset))
+        .Select(a => a as UdonSharpProgramAsset).ToArray();
+      foreach (var asset in assets) {
+        try {
+          if (asset != null && asset.sourceCsScript.GetClass() == T) {
+            uB = asset;
+          }
+        }
+        catch {
+          // ignored
+        }
+      }
+    }
+  }
+
+}