update

src/Connectors.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: a20b387d9272da846b2a1206bfb6d53a
+guid: 2b32116c3998f6742a35e492a88176be
 folderAsset: yes
 DefaultImporter:
   externalObjects: {}

src/Connectors/EcsDefaultWorldProvider.cs

@@ -0,0 +1,19 @@
+using UnityEngine;
+
+namespace DCFApixels.DragonECS
+{
+    [CreateAssetMenu(fileName = nameof(EcsDefaultWorldProvider), menuName = EcsConsts.FRAMEWORK_NAME + "/WorldProviders/" + nameof(EcsDefaultWorldProvider), order = 1)]
+    public class EcsDefaultWorldProvider : EcsWorldProvider<EcsDefaultWorld>
+    {
+        private static EcsDefaultWorldProvider _single;
+        public static EcsDefaultWorldProvider Single
+        {
+            get
+            {
+                if (_single == null)
+                    _single = FindOrCreateSingle<EcsDefaultWorldProvider>();
+                return _single;
+            }
+        }
+    }
+}

src/Connectors/EcsDefaultWorldProvider.cs.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: d0af8ddc3edb89242a26c1d308a18c87
+guid: 15b6f990a7e05b34a937a9a850d7c68c
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2

src/Connectors/EcsEntityConnect.cs

@@ -93,8 +93,6 @@ namespace DCFApixels.DragonECS.Editors
     public class EcsEntityEditor : Editor
     {
         private EcsEntityConnect Target => (EcsEntityConnect)target;
-        private GUIStyle _greenStyle;
-        private GUIStyle _redStyle;
 
         private bool _isInit = false;
 
@@ -103,19 +101,13 @@ namespace DCFApixels.DragonECS.Editors
             if (_isInit)
                 return;
 
-            _greenStyle = EcsEditor.GetStyle(new Color32(75, 255, 0, 100));
-            _redStyle = EcsEditor.GetStyle(new Color32(255, 0, 75, 100));
-
             _isInit = true;
         }
 
         public override void OnInspectorGUI()
         {
             Init();
-            if (Target.IsAlive)
-                GUILayout.Box("Connected", _greenStyle, GUILayout.ExpandWidth(true));
-            else
-                GUILayout.Box("Not connected", _redStyle, GUILayout.ExpandWidth(true));
+            EcsGUI.Layout.DrawConnectStatus(Target.IsAlive);
 
             if (Target.Entity.TryGetID(out int id))
                 EditorGUILayout.IntField(id);

src/Connectors/EcsWorldProvider.cs

@@ -0,0 +1,66 @@
+using System;
+using UnityEngine;
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
+
+namespace DCFApixels.DragonECS
+{
+    [Serializable]
+    public abstract class EcsWorldProviderBase : ScriptableObject
+    {
+        public abstract EcsWorld WorldRaw { get; }
+        public abstract EcsWorld GetRaw(Func<EcsWorld> builder = null);
+    }
+    [Serializable]
+    public abstract class EcsWorldProvider<TWorld> : EcsWorldProviderBase where TWorld : EcsWorld
+    {
+        private static TWorld _world;
+        public sealed override EcsWorld WorldRaw => _world;
+        public override EcsWorld GetRaw(Func<EcsWorld> builder = null)
+        {
+            if (_world == null || _world.IsDestroyed)
+            {
+                if (builder != null)
+                    _world = (TWorld)builder();
+                else
+                    _world = (TWorld)Activator.CreateInstance(typeof(TWorld));
+                OnWorldCreated(_world);
+            }
+            return _world;
+        }
+        public TWorld Get(Func<TWorld> builder = null)
+        {
+            if (_world == null || _world.IsDestroyed)
+            {
+                if(builder != null)
+                    _world = builder();
+                else
+                    _world = (TWorld)Activator.CreateInstance(typeof(TWorld));
+                OnWorldCreated(_world);
+            }
+            return _world;
+        }
+        protected virtual void OnWorldCreated(TWorld world) { }
+
+        protected static TProvider FindOrCreateSingle<TProvider>() where TProvider : EcsWorldProvider<TWorld>
+        {
+            string name = typeof(TProvider).Name + "Single";
+            TProvider instance = Resources.Load<TProvider>(name);
+            if (instance == null)
+            {
+                instance = CreateInstance<TProvider>();
+#if UNITY_EDITOR
+                if (AssetDatabase.IsValidFolder("Assets/Resources/") == false)
+                {
+                    System.IO.Directory.CreateDirectory(Application.dataPath + "/Resources/");
+                    AssetDatabase.Refresh();
+                }
+                AssetDatabase.CreateAsset(instance, "Assets/Resources/" + name + ".asset");
+                AssetDatabase.Refresh();
+#endif
+            }
+            return instance;
+        }
+    }
+}

src/Connectors/EcsWorldProvider.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: b041a062a2a5b2643bec37be4fad79f1
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

src/Debug/Editor/EcsEditor.cs

@@ -6,6 +6,44 @@ using UnityEngine;
 
 namespace DCFApixels.DragonECS.Editors
 {
+    public static class EcsGUI
+    {
+        private static GUIStyle _greenStyle;
+        private static GUIStyle _redStyle;
+
+        private static bool _isInit = false;
+        private static void Init()
+        {
+            if (_isInit)
+                return;
+
+            _greenStyle = EcsEditor.GetStyle(new Color32(75, 255, 0, 100));
+            _redStyle = EcsEditor.GetStyle(new Color32(255, 0, 75, 100));
+            _isInit = true;
+        }
+
+        public static void DrawConnectStatus(Rect position, bool status)
+        {
+            Init();
+            if (status)
+                GUI.Box(position, "Connected", _greenStyle);
+            else
+                GUI.Box(position, "Not connected", _redStyle);
+        }
+
+
+        public static class Layout
+        {
+            public static void DrawConnectStatus(bool status, params GUILayoutOption[] options)
+            {
+                Init();
+                if (status)
+                    GUILayout.Box("Connected", _greenStyle, GUILayout.ExpandWidth(true));
+                else
+                    GUILayout.Box("Not connected", _redStyle, GUILayout.ExpandWidth(true));
+            }
+        }
+    }
     [InitializeOnLoad]
     public static class EcsEditor
     {
@@ -40,10 +78,11 @@ namespace DCFApixels.DragonECS.Editors
         {
             GUIStyle result = new GUIStyle(GUI.skin.box);
             Color componentColor = color32;
-            result.normal.background = CreateTexture(2, 2, componentColor);
-            result.active.background = CreateTexture(2, 2, componentColor);
-            result.hover.background = CreateTexture(2, 2, componentColor);
-            result.focused.background = CreateTexture(2, 2, componentColor);
+            Texture2D texture2D = CreateTexture(2, 2, componentColor);
+            result.hover.background = texture2D;
+            result.focused.background = texture2D;
+            result.active.background = texture2D;
+            result.normal.background = texture2D;
             return result;
         }
         private static Texture2D CreateTexture(int width, int height, Color color)
@@ -58,7 +97,6 @@ namespace DCFApixels.DragonECS.Editors
             return result;
         }
 
-
         public static string GetGenericName(Type type) => EcsDebugUtility.GetGenericTypeName(type);
 
         public static string GetName<T>() => GetName(typeof(T));

src/Extensions/UnityComponents.cs

@@ -7,10 +7,11 @@ namespace DCFApixels.DragonECS
 {
     [Serializable]
     [DebugColor(255 / 3, 255, 0)]
-    public struct UnityComponent<T> : IEcsComponent, IEnumerable<T>//IntelliSense hack
+    public readonly struct UnityComponent<T> : IEcsComponent, IEnumerable<T>//IntelliSense hack
         where T : Component
     {
-        public T obj;
+        public readonly T obj;
+        public UnityComponent(T obj) => this.obj = obj;
         IEnumerator<T> IEnumerable<T>.GetEnumerator() => throw new NotImplementedException(); //IntelliSense hack
         IEnumerator IEnumerable.GetEnumerator() => throw new NotImplementedException(); //IntelliSense hack
     }
@@ -23,7 +24,7 @@ namespace DCFApixels.DragonECS
         public override void OnValidate(GameObject gameObject)
         {
             if (component.obj == null)
-                component.obj = gameObject.GetComponent<T>();
+                component = new UnityComponent<T>(gameObject.GetComponent<T>());
         }
     }
 

src/Extensions/UnityGameObject.cs

@@ -7,10 +7,10 @@ using UnityEditor;
 namespace DCFApixels.DragonECS
 {
     [DebugColor(DebugColor.Cyan)]
-    public struct UnityGameObject : IEcsComponent
+    public readonly struct UnityGameObject : IEcsComponent
     {
-        public GameObject gameObject;
-        public Transform transform;
+        public readonly GameObject gameObject;
+        public readonly Transform transform;
 
         public string Name
         {

src/Fetures/UnityWorldProvider.cs

@@ -1,28 +0,0 @@
-using System;
-
-namespace DCFApixels.DragonECS
-{
-    public static class UnityWorldProvider<TWorld>
-    {
-        private static TWorld _world;
-
-        public static TWorld Get(Func<TWorld> builder)
-        {
-            if (builder == null)
-                throw new ArgumentNullException();
-
-            if (_world == null)
-                _world = builder();
-
-            return _world;
-        }
-
-        public static TWorld Get()
-        {
-            if (_world == null)
-                _world = (TWorld)Activator.CreateInstance(typeof(TWorld));
-            return _world;
-        }
-    }
-
-}