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Alex38Lyon
2025-06-03 11:35:23 +02:00
parent be46f7cb35
commit dce9671af2
22 changed files with 1516 additions and 0 deletions
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Assets/NavMeshComponents/Editor/NavMeshAssetManager.cs
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using System.Collections.Generic;
using System.IO;
using UnityEditor.Experimental.SceneManagement;
using UnityEditor.SceneManagement;
using UnityEngine.AI;
using UnityEngine;
namespace UnityEditor.AI
{
public class NavMeshAssetManager : ScriptableSingleton<NavMeshAssetManager>
{
internal struct AsyncBakeOperation
{
public NavMeshSurface Surface;
public NavMeshData BakeData;
public AsyncOperation BakeOperation;
}
List<AsyncBakeOperation> m_BakeOperations = new List<AsyncBakeOperation>();
internal List<AsyncBakeOperation> GetBakeOperations() { return m_BakeOperations; }
struct SavedPrefabNavMeshData
{
public NavMeshSurface Surface;
public NavMeshData NavMeshData;
}
List<SavedPrefabNavMeshData> m_PrefabNavMeshDataAssets = new List<SavedPrefabNavMeshData>();
static string GetAndEnsureTargetPath(NavMeshSurface 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.assetPath))
{
var prefabDirectoryName = Path.GetDirectoryName(prefabStage.assetPath);
if (!string.IsNullOrEmpty(prefabDirectoryName))
targetPath = prefabDirectoryName;
}
}
if (!Directory.Exists(targetPath))
Directory.CreateDirectory(targetPath);
return targetPath;
}
static void CreateNavMeshAsset(NavMeshSurface surface)
{
var targetPath = GetAndEnsureTargetPath(surface);
var combinedAssetPath = Path.Combine(targetPath, "NavMesh-" + surface.name + ".asset");
combinedAssetPath = AssetDatabase.GenerateUniqueAssetPath(combinedAssetPath);
AssetDatabase.CreateAsset(surface.navMeshData, combinedAssetPath);
}
NavMeshData GetNavMeshAssetToDelete(NavMeshSurface 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 NavMeshSurface;
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 ClearSurface(NavMeshSurface 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));
}
public void StartBakingSurfaces(UnityEngine.Object[] surfaces)
{
// Remove first to avoid double registration of the callback
EditorApplication.update -= UpdateAsyncBuildOperations;
EditorApplication.update += UpdateAsyncBuildOperations;
foreach (NavMeshSurface surf in surfaces)
{
StoreNavMeshDataIfInPrefab(surf);
var oper = new AsyncBakeOperation();
oper.BakeData = InitializeBakeData(surf);
oper.BakeOperation = surf.UpdateNavMesh(oper.BakeData);
oper.Surface = surf;
m_BakeOperations.Add(oper);
}
}
static NavMeshData InitializeBakeData(NavMeshSurface 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);
}
void UpdateAsyncBuildOperations()
{
foreach (var oper in m_BakeOperations)
{
if (oper.Surface == null || oper.BakeOperation == null)
continue;
if (oper.BakeOperation.isDone)
{
var surface = oper.Surface;
var delete = GetNavMeshAssetToDelete(surface);
if (delete != null)
AssetDatabase.DeleteAsset(AssetDatabase.GetAssetPath(delete));
surface.RemoveData();
SetNavMeshData(surface, oper.BakeData);
if (surface.isActiveAndEnabled)
surface.AddData();
CreateNavMeshAsset(surface);
EditorSceneManager.MarkSceneDirty(surface.gameObject.scene);
}
}
m_BakeOperations.RemoveAll(o => o.BakeOperation == null || o.BakeOperation.isDone);
if (m_BakeOperations.Count == 0)
EditorApplication.update -= UpdateAsyncBuildOperations;
}
public bool IsSurfaceBaking(NavMeshSurface 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;
}
public void ClearSurfaces(UnityEngine.Object[] surfaces)
{
foreach (NavMeshSurface s in surfaces)
ClearSurface(s);
}
static void SetNavMeshData(NavMeshSurface navSurface, NavMeshData navMeshData)
{
var so = new SerializedObject(navSurface);
var navMeshDataProperty = so.FindProperty("m_NavMeshData");
navMeshDataProperty.objectReferenceValue = navMeshData;
so.ApplyModifiedPropertiesWithoutUndo();
}
void StoreNavMeshDataIfInPrefab(NavMeshSurface 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 NavMeshSurface;
isDataOwner = basePrefabSurface == null || surfaceToStore.navMeshData != basePrefabSurface.navMeshData;
}
m_PrefabNavMeshDataAssets.Add(new SavedPrefabNavMeshData { Surface = surfaceToStore, NavMeshData = isDataOwner ? surfaceToStore.navMeshData : null });
}
bool IsCurrentPrefabNavMeshDataStored(NavMeshSurface surface)
{
if (surface == null)
return false;
foreach (var storedAssetInfo in m_PrefabNavMeshDataAssets)
{
if (storedAssetInfo.Surface == surface)
return storedAssetInfo.NavMeshData == surface.navMeshData;
}
return false;
}
void DeleteStoredNavMeshDataAssetsForOwnedSurfaces(GameObject gameObjectInPrefab)
{
// Debug.LogFormat("DeleteStoredNavMeshDataAsset() when saving prefab {0}", gameObjectInPrefab.name);
var surfaces = gameObjectInPrefab.GetComponentsInChildren<NavMeshSurface>(true);
foreach (var surface in surfaces)
DeleteStoredPrefabNavMeshDataAsset(surface);
}
void DeleteStoredPrefabNavMeshDataAsset(NavMeshSurface 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;
}
}
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<NavMeshSurface>(true);
NavMeshSurface 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 NavMeshSurface;
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;
}
}
}
}
Assets/NavMeshComponents/Editor/NavMeshAssetManager.cs.meta
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Assets/NavMeshComponents/Editor/NavMeshComponentsEditor.asmdef
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"name": "NavMeshComponentsEditor",
"references": [
"NavMeshComponents"
],
"optionalUnityReferences": [],
"includePlatforms": [
"Editor"
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"defineConstraints": []
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Assets/NavMeshComponents/Editor/NavMeshComponentsEditor.asmdef.meta
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Assets/NavMeshComponents/Editor/NavMeshComponentsGUIUtility.cs
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using UnityEngine;
using UnityEngine.AI;
namespace UnityEditor.AI
{
public static class NavMeshComponentsGUIUtility
{
public static void AreaPopup(string labelName, SerializedProperty areaProperty)
{
var areaIndex = -1;
var areaNames = NavMesh.GetAreaNames();
for (var i = 0; i < areaNames.Length; i++)
{
var areaValue = NavMesh.GetAreaFromName(areaNames[i]);
if (areaValue == areaProperty.intValue)
areaIndex = i;
}
ArrayUtility.Add(ref areaNames, "");
ArrayUtility.Add(ref areaNames, "Open Area Settings...");
var rect = EditorGUILayout.GetControlRect(true, EditorGUIUtility.singleLineHeight);
EditorGUI.BeginProperty(rect, GUIContent.none, areaProperty);
EditorGUI.BeginChangeCheck();
areaIndex = EditorGUI.Popup(rect, labelName, areaIndex, areaNames);
if (EditorGUI.EndChangeCheck())
{
if (areaIndex >= 0 && areaIndex < areaNames.Length - 2)
areaProperty.intValue = NavMesh.GetAreaFromName(areaNames[areaIndex]);
else if (areaIndex == areaNames.Length - 1)
NavMeshEditorHelpers.OpenAreaSettings();
}
EditorGUI.EndProperty();
}
public static void AgentTypePopup(string labelName, SerializedProperty agentTypeID)
{
var index = -1;
var count = NavMesh.GetSettingsCount();
var agentTypeNames = new string[count + 2];
for (var i = 0; i < count; i++)
{
var id = NavMesh.GetSettingsByIndex(i).agentTypeID;
var name = NavMesh.GetSettingsNameFromID(id);
agentTypeNames[i] = name;
if (id == agentTypeID.intValue)
index = i;
}
agentTypeNames[count] = "";
agentTypeNames[count + 1] = "Open Agent Settings...";
bool validAgentType = index != -1;
if (!validAgentType)
{
EditorGUILayout.HelpBox("Agent Type invalid.", MessageType.Warning);
}
var rect = EditorGUILayout.GetControlRect(true, EditorGUIUtility.singleLineHeight);
EditorGUI.BeginProperty(rect, GUIContent.none, agentTypeID);
EditorGUI.BeginChangeCheck();
index = EditorGUI.Popup(rect, labelName, index, agentTypeNames);
if (EditorGUI.EndChangeCheck())
{
if (index >= 0 && index < count)
{
var id = NavMesh.GetSettingsByIndex(index).agentTypeID;
agentTypeID.intValue = id;
}
else if (index == count + 1)
{
NavMeshEditorHelpers.OpenAgentSettings(-1);
}
}
EditorGUI.EndProperty();
}
// Agent mask is a set (internally array/list) of agentTypeIDs.
// It is used to describe which agents modifiers apply to.
// There is a special case of "None" which is an empty array.
// There is a special case of "All" which is an array of length 1, and value of -1.
public static void AgentMaskPopup(string labelName, SerializedProperty agentMask)
{
// Contents of the dropdown box.
string popupContent = "";
if (agentMask.hasMultipleDifferentValues)
popupContent = "\u2014";
else
popupContent = GetAgentMaskLabelName(agentMask);
var content = new GUIContent(popupContent);
var popupRect = GUILayoutUtility.GetRect(content, EditorStyles.popup);
EditorGUI.BeginProperty(popupRect, GUIContent.none, agentMask);
popupRect = EditorGUI.PrefixLabel(popupRect, 0, new GUIContent(labelName));
bool pressed = GUI.Button(popupRect, content, EditorStyles.popup);
if (pressed)
{
var show = !agentMask.hasMultipleDifferentValues;
var showNone = show && agentMask.arraySize == 0;
var showAll = show && IsAll(agentMask);
var menu = new GenericMenu();
menu.AddItem(new GUIContent("None"), showNone, SetAgentMaskNone, agentMask);
menu.AddItem(new GUIContent("All"), showAll, SetAgentMaskAll, agentMask);
menu.AddSeparator("");
var count = NavMesh.GetSettingsCount();
for (var i = 0; i < count; i++)
{
var id = NavMesh.GetSettingsByIndex(i).agentTypeID;
var sname = NavMesh.GetSettingsNameFromID(id);
var showSelected = show && AgentMaskHasSelectedAgentTypeID(agentMask, id);
var userData = new object[] { agentMask, id, !showSelected };
menu.AddItem(new GUIContent(sname), showSelected, ToggleAgentMaskItem, userData);
}
menu.DropDown(popupRect);
}
EditorGUI.EndProperty();
}
public static GameObject CreateAndSelectGameObject(string suggestedName, GameObject parent)
{
var parentTransform = parent != null ? parent.transform : null;
var uniqueName = GameObjectUtility.GetUniqueNameForSibling(parentTransform, suggestedName);
var child = new GameObject(uniqueName);
Undo.RegisterCreatedObjectUndo(child, "Create " + uniqueName);
if (parentTransform != null)
Undo.SetTransformParent(child.transform, parentTransform, "Parent " + uniqueName);
Selection.activeGameObject = child;
return child;
}
static bool IsAll(SerializedProperty agentMask)
{
return agentMask.arraySize == 1 && agentMask.GetArrayElementAtIndex(0).intValue == -1;
}
static void ToggleAgentMaskItem(object userData)
{
var args = (object[])userData;
var agentMask = (SerializedProperty)args[0];
var agentTypeID = (int)args[1];
var value = (bool)args[2];
ToggleAgentMaskItem(agentMask, agentTypeID, value);
}
static void ToggleAgentMaskItem(SerializedProperty agentMask, int agentTypeID, bool value)
{
if (agentMask.hasMultipleDifferentValues)
{
agentMask.ClearArray();
agentMask.serializedObject.ApplyModifiedProperties();
}
// Find which index this agent type is in the agentMask array.
int idx = -1;
for (var j = 0; j < agentMask.arraySize; j++)
{
var elem = agentMask.GetArrayElementAtIndex(j);
if (elem.intValue == agentTypeID)
idx = j;
}
// Handle "All" special case.
if (IsAll(agentMask))
{
agentMask.DeleteArrayElementAtIndex(0);
}
// Toggle value.
if (value)
{
if (idx == -1)
{
agentMask.InsertArrayElementAtIndex(agentMask.arraySize);
agentMask.GetArrayElementAtIndex(agentMask.arraySize - 1).intValue = agentTypeID;
}
}
else
{
if (idx != -1)
{
agentMask.DeleteArrayElementAtIndex(idx);
}
}
agentMask.serializedObject.ApplyModifiedProperties();
}
static void SetAgentMaskNone(object data)
{
var agentMask = (SerializedProperty)data;
agentMask.ClearArray();
agentMask.serializedObject.ApplyModifiedProperties();
}
static void SetAgentMaskAll(object data)
{
var agentMask = (SerializedProperty)data;
agentMask.ClearArray();
agentMask.InsertArrayElementAtIndex(0);
agentMask.GetArrayElementAtIndex(0).intValue = -1;
agentMask.serializedObject.ApplyModifiedProperties();
}
static string GetAgentMaskLabelName(SerializedProperty agentMask)
{
if (agentMask.arraySize == 0)
return "None";
if (IsAll(agentMask))
return "All";
if (agentMask.arraySize <= 3)
{
var labelName = "";
for (var j = 0; j < agentMask.arraySize; j++)
{
var elem = agentMask.GetArrayElementAtIndex(j);
var settingsName = NavMesh.GetSettingsNameFromID(elem.intValue);
if (string.IsNullOrEmpty(settingsName))
continue;
if (labelName.Length > 0)
labelName += ", ";
labelName += settingsName;
}
return labelName;
}
return "Mixed...";
}
static bool AgentMaskHasSelectedAgentTypeID(SerializedProperty agentMask, int agentTypeID)
{
for (var j = 0; j < agentMask.arraySize; j++)
{
var elem = agentMask.GetArrayElementAtIndex(j);
if (elem.intValue == agentTypeID)
return true;
}
return false;
}
}
}
Assets/NavMeshComponents/Editor/NavMeshComponentsGUIUtility.cs.meta
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