First Commit

Assets/Attributes/NavMeshMask.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+#if UNITY_EDITOR
+using UnityEditor;
+using UnityEngine;
+
+namespace Golems.Attributes
+{
+    [CustomPropertyDrawer(typeof(NavMeshMaskAttribute))]
+    public class NavMeshMaskDrawer : PropertyDrawer
+    {
+        public override void OnGUI(Rect position, SerializedProperty serializedProperty, GUIContent label)
+        {
+            float width = position.width;
+            position.width = EditorGUIUtility.labelWidth;
+            EditorGUI.PrefixLabel(position, label);
+         
+            string[] areaNames  = GameObjectUtility.GetNavMeshAreaNames();
+            int mask = serializedProperty.intValue;
+            position.x += EditorGUIUtility.labelWidth;
+            position.width = width - EditorGUIUtility.labelWidth;
+ 
+            EditorGUI.BeginChangeCheck();
+            mask = EditorGUI.MaskField(position, mask, areaNames);
+            if (EditorGUI.EndChangeCheck())
+            {
+                serializedProperty.intValue = mask;
+            }
+        }
+    }
+
+    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = true)]
+    public class NavMeshMaskAttribute : PropertyAttribute // if there are build issues move the NavMeshMaskAttribute class out of the unity editor folder  
+    {
+    } 
+}
+
+#endif