static string GetAndEnsureTargetPath(NavMeshSurfaceNBLD surface)
{
// Create directory for the asset if it does not exist yet.
var activeScenePath = surface.gameObject.scene.path;
var targetPath = "Assets";
if (!string.IsNullOrEmpty(activeScenePath))
{
targetPath = Path.Combine(Path.GetDirectoryName(activeScenePath), Path.GetFileNameWithoutExtension(activeScenePath));
}
else
{
var prefabStage = PrefabStageUtility.GetPrefabStage(surface.gameObject);
var isPartOfPrefab = prefabStage != null && prefabStage.IsPartOfPrefabContents(surface.gameObject);
if (isPartOfPrefab && !string.IsNullOrEmpty(prefabStage.prefabAssetPath))
{
var prefabDirectoryName = Path.GetDirectoryName(prefabStage.prefabAssetPath);
if (!string.IsNullOrEmpty(prefabDirectoryName))
{
targetPath = prefabDirectoryName;
}
}
}
if (!Directory.Exists(targetPath))
{
Directory.CreateDirectory(targetPath);
}
return(targetPath);
}
void DeleteStoredPrefabNavMeshDataAsset(NavMeshSurfaceNBLD surface)
{
for (var i = m_PrefabNavMeshDataAssets.Count - 1; i >= 0; i--)
{
var storedAssetInfo = m_PrefabNavMeshDataAssets[i];
if (storedAssetInfo.surface == surface)
{
var storedNavMeshData = storedAssetInfo.navMeshData;
if (storedNavMeshData != null && storedNavMeshData != surface.navMeshData)
{
var assetPath = AssetDatabase.GetAssetPath(storedNavMeshData);
AssetDatabase.DeleteAsset(assetPath);
}
m_PrefabNavMeshDataAssets.RemoveAt(i);
break;
}
}
if (m_PrefabNavMeshDataAssets.Count == 0)
{
PrefabStage.prefabSaving -= DeleteStoredNavMeshDataAssetsForOwnedSurfaces;
PrefabStage.prefabStageClosing -= ForgetUnsavedNavMeshDataChanges;
}
}
static void SetNavMeshData(NavMeshSurfaceNBLD navSurface, NavMeshData navMeshData)
{
var so = new SerializedObject(navSurface);
var navMeshDataProperty = so.FindProperty("m_NavMeshData");
navMeshDataProperty.objectReferenceValue = navMeshData;
so.ApplyModifiedPropertiesWithoutUndo();
}
static NavMeshData InitializeBakeData(NavMeshSurfaceNBLD surface)
{
var emptySources = new List <NavMeshBuildSource>();
var emptyBounds = new Bounds();
return(UnityEngine.AI.NavMeshBuilder.BuildNavMeshData(surface.GetBuildSettings(), emptySources, emptyBounds
, surface.transform.position, surface.transform.rotation));
}
static void CreateNavMeshAsset(NavMeshSurfaceNBLD surface)
{
var targetPath = GetAndEnsureTargetPath(surface);
var combinedAssetPath = Path.Combine(targetPath, "NavMesh-" + surface.name + ".asset");
combinedAssetPath = AssetDatabase.GenerateUniqueAssetPath(combinedAssetPath);
AssetDatabase.CreateAsset(surface.navMeshData, combinedAssetPath);
}
static void RenderBoxGizmoNotSelected(NavMeshSurfaceNBLD navSurface, GizmoType gizmoType)
{
if (NavMeshVisualizationSettings.showNavigation > 0)
{
RenderBoxGizmo(navSurface, gizmoType, false);
}
else
{
Gizmos.DrawIcon(navSurface.transform.position, "NavMeshSurface Icon", true);
}
}
bool IsCurrentPrefabNavMeshDataStored(NavMeshSurfaceNBLD surface)
{
if (surface == null)
{
return(false);
}
foreach (var storedAssetInfo in m_PrefabNavMeshDataAssets)
{
if (storedAssetInfo.surface == surface)
{
return(storedAssetInfo.navMeshData == surface.navMeshData);
}
}
return(false);
}
static void RenderBoxGizmo(NavMeshSurfaceNBLD navSurface, GizmoType gizmoType, bool selected)
{
var color = selected ? s_HandleColorSelected : s_HandleColor;
if (!navSurface.enabled)
{
color = s_HandleColorDisabled;
}
var oldColor = Gizmos.color;
var oldMatrix = Gizmos.matrix;
// Use the unscaled matrix for the NavMeshSurface
var localToWorld = Matrix4x4.TRS(navSurface.transform.position, navSurface.transform.rotation, Vector3.one);
Gizmos.matrix = localToWorld;
if (navSurface.collectObjects == CollectObjectsNBLD.Volume)
{
Gizmos.color = color;
Gizmos.DrawWireCube(navSurface.center, navSurface.size);
if (selected && navSurface.enabled)
{
var colorTrans = new Color(color.r * 0.75f, color.g * 0.75f, color.b * 0.75f, color.a * 0.15f);
Gizmos.color = colorTrans;
Gizmos.DrawCube(navSurface.center, navSurface.size);
}
}
else
{
if (navSurface.navMeshData != null)
{
var bounds = navSurface.navMeshData.sourceBounds;
Gizmos.color = Color.grey;
Gizmos.DrawWireCube(bounds.center, bounds.size);
}
}
Gizmos.matrix = oldMatrix;
Gizmos.color = oldColor;
Gizmos.DrawIcon(navSurface.transform.position, "NavMeshSurface Icon", true);
}
void ClearSurface(NavMeshSurfaceNBLD navSurface)
{
var hasNavMeshData = navSurface.navMeshData != null;
StoreNavMeshDataIfInPrefab(navSurface);
var assetToDelete = GetNavMeshAssetToDelete(navSurface);
navSurface.RemoveData();
if (hasNavMeshData)
{
SetNavMeshData(navSurface, null);
EditorSceneManager.MarkSceneDirty(navSurface.gameObject.scene);
}
if (assetToDelete)
{
AssetDatabase.DeleteAsset(AssetDatabase.GetAssetPath(assetToDelete));
}
}
void StoreNavMeshDataIfInPrefab(NavMeshSurfaceNBLD surfaceToStore)
{
var prefabStage = PrefabStageUtility.GetPrefabStage(surfaceToStore.gameObject);
var isPartOfPrefab = prefabStage != null && prefabStage.IsPartOfPrefabContents(surfaceToStore.gameObject);
if (!isPartOfPrefab)
{
return;
}
// check if data has already been stored for this surface
foreach (var storedAssetInfo in m_PrefabNavMeshDataAssets)
{
if (storedAssetInfo.surface == surfaceToStore)
{
return;
}
}
if (m_PrefabNavMeshDataAssets.Count == 0)
{
PrefabStage.prefabSaving -= DeleteStoredNavMeshDataAssetsForOwnedSurfaces;
PrefabStage.prefabSaving += DeleteStoredNavMeshDataAssetsForOwnedSurfaces;
PrefabStage.prefabStageClosing -= ForgetUnsavedNavMeshDataChanges;
PrefabStage.prefabStageClosing += ForgetUnsavedNavMeshDataChanges;
}
var isDataOwner = true;
if (PrefabUtility.IsPartOfPrefabInstance(surfaceToStore) && !PrefabUtility.IsPartOfModelPrefab(surfaceToStore))
{
var basePrefabSurface = PrefabUtility.GetCorrespondingObjectFromSource(surfaceToStore) as NavMeshSurfaceNBLD;
isDataOwner = basePrefabSurface == null || surfaceToStore.navMeshData != basePrefabSurface.navMeshData;
}
m_PrefabNavMeshDataAssets.Add(new SavedPrefabNavMeshData {
surface = surfaceToStore, navMeshData = isDataOwner ? surfaceToStore.navMeshData : null
});
}
public bool IsSurfaceBaking(NavMeshSurfaceNBLD surface)
{
if (surface == null)
{
return(false);
}
foreach (var oper in m_BakeOperations)
{
if (oper.surface == null || oper.bakeOperation == null)
{
continue;
}
if (oper.surface == surface)
{
return(true);
}
}
return(false);
}
NavMeshData GetNavMeshAssetToDelete(NavMeshSurfaceNBLD navSurface)
{
if (PrefabUtility.IsPartOfPrefabInstance(navSurface) && !PrefabUtility.IsPartOfModelPrefab(navSurface))
{
// Don't allow deleting the asset belonging to the prefab parent
var parentSurface = PrefabUtility.GetCorrespondingObjectFromSource(navSurface) as NavMeshSurfaceNBLD;
if (parentSurface && navSurface.navMeshData == parentSurface.navMeshData)
{
return(null);
}
}
// Do not delete the NavMeshData asset referenced from a prefab until the prefab is saved
var prefabStage = PrefabStageUtility.GetPrefabStage(navSurface.gameObject);
var isPartOfPrefab = prefabStage != null && prefabStage.IsPartOfPrefabContents(navSurface.gameObject);
if (isPartOfPrefab && IsCurrentPrefabNavMeshDataStored(navSurface))
{
return(null);
}
return(navSurface.navMeshData);
}
void ForgetUnsavedNavMeshDataChanges(PrefabStage prefabStage)
{
// Debug.Log("On prefab closing - forget about this object's surfaces and stop caring about prefab saving");
if (prefabStage == null)
{
return;
}
var allSurfacesInPrefab = prefabStage.prefabContentsRoot.GetComponentsInChildren <NavMeshSurfaceNBLD>(true);
NavMeshSurfaceNBLD surfaceInPrefab = null;
var index = 0;
do
{
if (allSurfacesInPrefab.Length > 0)
{
surfaceInPrefab = allSurfacesInPrefab[index];
}
for (var i = m_PrefabNavMeshDataAssets.Count - 1; i >= 0; i--)
{
var storedPrefabInfo = m_PrefabNavMeshDataAssets[i];
if (storedPrefabInfo.surface == null)
{
// Debug.LogFormat("A surface from the prefab got deleted after it has baked a new NavMesh but it hasn't saved it. Now the unsaved asset gets deleted. ({0})", storedPrefabInfo.navMeshData);
// surface got deleted, thus delete its initial NavMeshData asset
if (storedPrefabInfo.navMeshData != null)
{
var assetPath = AssetDatabase.GetAssetPath(storedPrefabInfo.navMeshData);
AssetDatabase.DeleteAsset(assetPath);
}
m_PrefabNavMeshDataAssets.RemoveAt(i);
}
else if (surfaceInPrefab != null && storedPrefabInfo.surface == surfaceInPrefab)
{
//Debug.LogFormat("The surface {0} from the prefab was storing the original navmesh data and now will be forgotten", surfaceInPrefab);
var baseSurface = PrefabUtility.GetCorrespondingObjectFromSource(surfaceInPrefab) as NavMeshSurfaceNBLD;
if (baseSurface == null || surfaceInPrefab.navMeshData != baseSurface.navMeshData)
{
var assetPath = AssetDatabase.GetAssetPath(surfaceInPrefab.navMeshData);
AssetDatabase.DeleteAsset(assetPath);
//Debug.LogFormat("The surface {0} from the prefab has baked new NavMeshData but did not save this change so the asset has been now deleted. ({1})",
// surfaceInPrefab, assetPath);
}
m_PrefabNavMeshDataAssets.RemoveAt(i);
}
}
} while (++index < allSurfacesInPrefab.Length);
if (m_PrefabNavMeshDataAssets.Count == 0)
{
PrefabStage.prefabSaving -= DeleteStoredNavMeshDataAssetsForOwnedSurfaces;
PrefabStage.prefabStageClosing -= ForgetUnsavedNavMeshDataChanges;
}
}
static void RenderBoxGizmoSelected(NavMeshSurfaceNBLD navSurface, GizmoType gizmoType)
{
RenderBoxGizmo(navSurface, gizmoType, true);
}