add scriptable object examples

add editor window example add attribute + drawer example
2025-06-13 18:07:18 +02:00
parent 0ae837c57b
commit a6dbfb224f
52 changed files with 1460 additions and 533 deletions
@@ -0,0 +1,35 @@
+using UnityEditor;
+using UnityEngine;
+using UnityEngine.UIElements;
+
+namespace Attributes.Editor
+{
+    [CustomPropertyDrawer(typeof(RequireAttribute))]
+    public class RequireAttributeDrawer : PropertyDrawer
+    {
+        private readonly string HELPBOX_CONTENT = "Property has to be set!";
+        
+        public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
+        {
+            bool isNull = !property.objectReferenceValue;
+            
+            if (isNull) position.height = EditorGUIUtility.singleLineHeight;
+            
+            EditorGUI.PropertyField(position, property, label);
+
+            if (isNull)
+            {
+                position.y += position.height + EditorGUIUtility.standardVerticalSpacing;
+                position.height = EditorStyles.helpBox.CalcHeight(new GUIContent(HELPBOX_CONTENT),
+                    EditorGUIUtility.currentViewWidth) + 10.0f;
+                EditorGUI.HelpBox(position, HELPBOX_CONTENT, MessageType.Error);
+            }
+        }
+
+        public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
+        {
+            if (property.objectReferenceValue) return EditorGUIUtility.singleLineHeight;
+            return EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing + EditorStyles.helpBox.CalcHeight(new GUIContent(HELPBOX_CONTENT), EditorGUIUtility.currentViewWidth) + 10.0f;
+        }
+    }
+}