- Reactivate Generator function in Unity 2018.4.

Packages/Core/Editor/Drawers/VariableDrawer.cs

@@ -14,15 +14,29 @@ public override void OnGUI(Rect position, SerializedProperty property, GUIConten
                 return;
             }
 
+            label = EditorGUI.BeginProperty(position, label, property);
+            position = EditorGUI.PrefixLabel(position, label);
+
             var inner = new SerializedObject(property.objectReferenceValue);
             var valueProp = inner.FindProperty("_value");
-            var width = GetPreviewSpace(valueProp.type) + (property.depth == 0 ? EditorGUIUtility.labelWidth : 0);
-            var restRect = IMGUIUtils.SnipRectH(position, width, out position, 6f);
-            base.OnGUI(position, property, GUIContent.none);
+            var width = GetPreviewSpace(valueProp.type);
+            Rect previewRect = new Rect(position);
+            previewRect.width = GetPreviewSpace(valueProp.type);
+            position.xMin = previewRect.xMax;
+
+            int indent = EditorGUI.indentLevel;
+            EditorGUI.indentLevel = 0;
 
             EditorGUI.BeginDisabledGroup(true);
-            EditorGUI.PropertyField(restRect, valueProp, label, false);
+            EditorGUI.PropertyField(previewRect, valueProp, GUIContent.none, false);
             EditorGUI.EndDisabledGroup();
+
+            position.x = position.x + 6f;
+            position.width = position.width - 6f;
+            base.OnGUI(position, property, GUIContent.none);
+
+            EditorGUI.indentLevel = indent;
+            EditorGUI.EndProperty();
         }
 
         private float GetPreviewSpace(string type)

Packages/Core/Editor/Generator/Generator.cs

@@ -1,4 +1,4 @@
-#if UNITY_2019_1_OR_NEWER
+#if UNITY_2018_4_OR_NEWER
 using System;
 using System.Collections.Generic;
 using System.IO;
@@ -56,8 +56,9 @@ public void Generate(string type, string baseWritePath, bool isEquatable, List<A
 
             // Recursively search for template files. TODO: Is there a better way to find and load templates?
             var templateSearchPath = Runtime.IsUnityAtomsRepo ?
-                Directory.GetParent(baseWritePath).FullName : // "Packages"
+                Directory.GetParent(Runtime.UnityAtomsCorePath).FullName : // "Packages"
                 Directory.GetParent(Application.dataPath).FullName;
+
             var templatePaths = Directory.GetFiles(templateSearchPath, "UA_Template*.txt", SearchOption.AllDirectories);
             var templateConditions = new List<string>();
             if (isEquatable) { templateConditions.Add("EQUATABLE"); }

Packages/Core/Editor/Generator/GeneratorEditor.cs

@@ -1,10 +1,16 @@
-#if UNITY_2019_1_OR_NEWER
+#if UNITY_2018_4_OR_NEWER
 using System;
 using System.Linq;
 using System.Collections.Generic;
 using UnityEditor;
 using UnityEngine;
+#if UNITY_2019_1_OR_NEWER
 using UnityEngine.UIElements;
+#elif UNITY_2018_4_OR_NEWER
+using UnityEditor.Experimental.UIElements;
+using UnityEngine.Experimental.UIElements;
+using UnityEngine.Experimental.UIElements.StyleEnums;
+#endif
 
 namespace UnityAtoms.Editor
 {
@@ -148,8 +154,11 @@ private void OnEnable()
                 AtomTypes.FUNCTION_X2
             };
             generator = generator == null ? new Generator() : generator;
-
+#if UNITY_2019_1_OR_NEWER
             var root = this.rootVisualElement;
+#elif UNITY_2018_4_OR_NEWER
+            var root = this.GetRootVisualContainer();
+#endif
             var pathRow = new VisualElement() { style = { flexDirection = FlexDirection.Row } };
             pathRow.Add(new Label() { text = "Relative Write Path", style = { width = 180, marginRight = 8 } });
             var textfield = new TextField() { value = _writePath, style = { flexGrow = 1 } };

Packages/Core/Editor/Generator/RegenerateAllAtoms.cs

@@ -1,4 +1,4 @@
-#if UNITY_2019_1_OR_NEWER
+#if UNITY_2018_4_OR_NEWER
 using System;
 using System.Linq;
 using System.Collections.Generic;

Packages/Core/Runtime/Utils/Runtime.cs

@@ -26,5 +26,14 @@ public static bool IsUnityAtomsRepo
         {
             get => System.Environment.CurrentDirectory.Contains("unity-atoms/Examples");
         }
+
+        /// <summary>
+        /// Returns the path to Unity Atoms Core.
+        /// Mainly used to search for Templates.
+        /// </summary>
+        public static string UnityAtomsCorePath
+        {
+            get => "../Packages/Core";
+        }
     }
 }