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Assets/NavMesh/Examples/Editor/NavMeshComponentsExamplesEditor.asmdef

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+{
+    "name": "NavMeshComponentsExamplesEditor",
+    "references": [
+        "NavMeshComponentsExamples"
+    ],
+    "optionalUnityReferences": [],
+    "includePlatforms": [
+        "Editor"
+    ],
+    "excludePlatforms": [],
+    "allowUnsafeCode": false
+}

Assets/NavMesh/Examples/Editor/NavMeshComponentsExamplesEditor.asmdef.meta

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Assets/NavMesh/Examples/Editor/NavMeshPrefabInstanceEditor.cs

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+using System.Collections.Generic;
+using UnityEditor;
+using UnityEngine;
+using UnityEngine.AI;
+
+[CanEditMultipleObjects]
+[CustomEditor(typeof(NavMeshPrefabInstance))]
+class NavMeshPrefabInstanceEditor : Editor
+{
+    SerializedProperty m_FollowTransformProp;
+    SerializedProperty m_NavMeshDataProp;
+
+    public void OnEnable()
+    {
+        m_FollowTransformProp = serializedObject.FindProperty("m_FollowTransform");
+        m_NavMeshDataProp = serializedObject.FindProperty("m_NavMesh");
+    }
+
+    public override void OnInspectorGUI()
+    {
+        var instance = (NavMeshPrefabInstance)target;
+        var go = instance.gameObject;
+
+        serializedObject.Update();
+
+        GUI.enabled = false;
+        EditorGUILayout.PropertyField(m_NavMeshDataProp);
+        GUI.enabled = true;
+        EditorGUILayout.PropertyField(m_FollowTransformProp);
+
+        EditorGUILayout.Space();
+
+        OnInspectorGUIPrefab(go);
+
+        serializedObject.ApplyModifiedProperties();
+    }
+
+    void OnInspectorGUIPrefab(GameObject go)
+    {
+        var prefab = PrefabUtility.GetPrefabInstanceHandle(go);
+        var path = AssetDatabase.GetAssetPath(prefab);
+
+        if (prefab && string.IsNullOrEmpty(path))
+        {
+            if (GUILayout.Button("Select the Prefab asset to bake or clear the navmesh", EditorStyles.helpBox))
+            {
+                Selection.activeObject = PrefabUtility.GetCorrespondingObjectFromSource(go);
+                EditorGUIUtility.PingObject(Selection.activeObject);
+            }
+        }
+
+        if (string.IsNullOrEmpty(path))
+            return;
+
+        GUILayout.BeginHorizontal();
+        GUILayout.Space(EditorGUIUtility.labelWidth);
+
+        if (GUILayout.Button("Clear"))
+            OnClear();
+
+        if (GUILayout.Button("Bake"))
+            OnBake();
+
+        GUILayout.EndHorizontal();
+    }
+
+    NavMeshData Build(NavMeshPrefabInstance instance)
+    {
+        var root = instance.transform;
+        var sources = new List<NavMeshBuildSource>();
+        var markups = new List<NavMeshBuildMarkup>();
+
+        UnityEditor.AI.NavMeshBuilder.CollectSourcesInStage(
+            root, ~0, NavMeshCollectGeometry.RenderMeshes, 0, markups, instance.gameObject.scene, sources);
+        var settings = NavMesh.GetSettingsByID(0);
+        var bounds = new Bounds(Vector3.zero, 1000.0f * Vector3.one);
+        var navmesh = NavMeshBuilder.BuildNavMeshData(settings, sources, bounds, root.position, root.rotation);
+        navmesh.name = "Navmesh";
+        return navmesh;
+    }
+
+    void OnClear()
+    {
+        foreach (var tgt in targets)
+        {
+            var instance = (NavMeshPrefabInstance)tgt;
+            var go = instance.gameObject;
+            var prefab = PrefabUtility.GetPrefabInstanceHandle(go);
+            var path = AssetDatabase.GetAssetPath(prefab);
+
+            if (string.IsNullOrEmpty(path))
+            {
+                Debug.LogError("GameObject: " + go + " has no valid prefab path");
+                continue;
+            }
+
+            DestroyNavMeshData(path);
+            AssetDatabase.SaveAssets();
+        }
+    }
+
+    void OnBake()
+    {
+        foreach (var tgt in targets)
+        {
+            var instance = (NavMeshPrefabInstance)tgt;
+            var go = instance.gameObject;
+            var prefab = PrefabUtility.GetPrefabInstanceHandle(go);
+            var path = AssetDatabase.GetAssetPath(prefab);
+
+            if (string.IsNullOrEmpty(path))
+            {
+                Debug.LogError("GameObject: " + go + " has no valid prefab path");
+                continue;
+            }
+
+            DestroyNavMeshData(path);
+
+            // Store navmesh as a sub-asset of the prefab
+            var navmesh = Build(instance);
+            AssetDatabase.AddObjectToAsset(navmesh, prefab);
+
+            instance.navMeshData = navmesh;
+            AssetDatabase.SaveAssets();
+        }
+    }
+
+    void DestroyNavMeshData(string path)
+    {
+        // Destroy and remove all existing NavMeshData sub-assets
+        var assets = AssetDatabase.LoadAllAssetsAtPath(path);
+        foreach (var o in assets)
+        {
+            var data = o as NavMeshData;
+            if (data != null)
+                DestroyImmediate(o, true);
+        }
+    }
+
+    [DrawGizmo(GizmoType.Selected | GizmoType.Active | GizmoType.Pickable)]
+    static void RenderGizmo(NavMeshPrefabInstance instance, GizmoType gizmoType)
+    {
+        if (!EditorApplication.isPlaying)
+            instance.UpdateInstance();
+    }
+}

Assets/NavMesh/Examples/Editor/NavMeshPrefabInstanceEditor.cs.meta

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+timeCreated: 1474998981
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