initial game submission

Packages/org.khronos.unitygltf/Editor/Scripts/Plugins/GLTFPluginEditor.cs

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+using UnityEngine;
+using UnityEditor;
+using UnityEditor.PackageManager;
+using UnityGLTF.Plugins;
+
+namespace UnityGLTF
+{
+    [CustomEditor(typeof(GLTFPlugin), true)]
+    public class GLTFPluginEditor: Editor
+    {
+        // Follows the default implementation of OnInspectorGUI, but skips the script field
+        public override void OnInspectorGUI()
+        {
+            serializedObject.Update();
+            var iterator = serializedObject.GetIterator();
+            // skip script field
+            iterator.NextVisible(true);
+            while (iterator.NextVisible(false))
+                EditorGUILayout.PropertyField(iterator, true);
+            serializedObject.ApplyModifiedProperties();
+        }
+    }
+
+    internal abstract class PackageInstallEditor : GLTFPluginEditor
+    {
+        private bool isInstalling = false;
+        protected abstract string PackageName { get; }
+        private static GUIStyle IndentedButton;
+        public override void OnInspectorGUI()
+        {
+            base.OnInspectorGUI();
+            var t = target as GLTFPlugin;
+            if (!t || string.IsNullOrEmpty(t.Warning))
+            {
+                var rect = GUILayoutUtility.GetLastRect();
+                if (Event.current.type == EventType.ContextClick && rect.Contains(Event.current.mousePosition))
+                {
+                    var menu = new GenericMenu();
+                    menu.AddItem(new GUIContent("Uninstall Package"), false, () => {
+                        Client.Remove(PackageName);
+                    });
+                    menu.ShowAsContext();
+                    Event.current.Use();
+                }
+
+                return;
+            }
+            
+            if (isInstalling)
+            {
+                EditorGUI.BeginDisabledGroup(true);
+                GUILayout.Button("Installing...");
+                EditorGUI.EndDisabledGroup();
+                return;
+            }
+
+            EditorGUI.indentLevel++;
+            if (IndentedButton == null)
+            {
+                IndentedButton = new GUIStyle(EditorStyles.miniButton);
+                IndentedButton.margin = new RectOffset(EditorGUI.indentLevel * 16, 0, 0, 0);
+            }
+            
+            if (GUILayout.Button("Install " + PackageName, IndentedButton))
+            {
+                isInstalling = true;
+                var request = Client.Add(PackageName);
+                
+                void WatchInstall()
+                {
+                    if (!request.IsCompleted) return;
+                    
+                    isInstalling = false;
+                    if (request.Status >= StatusCode.Failure)
+                        Debug.LogError(request.Error.message);
+                    EditorApplication.update -= WatchInstall;
+                }
+                
+                EditorApplication.update += WatchInstall;
+            }
+            EditorGUI.indentLevel--;
+        }
+    }
+    
+    [CustomEditor(typeof(DracoImport))]
+    internal class DracoImportEditor : PackageInstallEditor
+    {
+        protected override string PackageName => "com.unity.cloud.draco";
+    }
+    
+    [CustomEditor(typeof(MeshoptImport))]
+    internal class MeshoptImportEditor : PackageInstallEditor
+    {
+        protected override string PackageName => "com.unity.meshopt.decompress";
+    }
+    
+    [CustomEditor(typeof(Ktx2Import))]
+    internal class Ktx2ImportEditor : PackageInstallEditor
+    {
+        protected override string PackageName => "com.unity.cloud.ktx";
+    }
+}

Packages/org.khronos.unitygltf/Editor/Scripts/Plugins/GLTFPluginEditor.cs.meta

@@ -0,0 +1,11 @@
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+guid: 5df1106545064293aebd7efc2fc87905
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/org.khronos.unitygltf/Editor/Scripts/Plugins/RegisteredImportPlugins.cs

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+using System;
+using System.Collections.Generic;
+using UnityEditor;
+using UnityEngine;
+using UnityGLTF.Plugins;
+
+namespace UnityGLTF
+{
+	internal static class RegisteredImportPlugins
+	{
+		internal static readonly List<GLTFImportPlugin> Plugins = new List<GLTFImportPlugin>();
+
+		[InitializeOnLoadMethod]
+		public static void Init()
+		{
+		}
+
+		private static void OnAfterGUI(GltfSettingsProvider obj)
+		{
+		}
+	}
+}

Packages/org.khronos.unitygltf/Editor/Scripts/Plugins/RegisteredImportPlugins.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: c336fc934d29489b99919ae62cb2a2c8
+timeCreated: 1680101663