private void CleanNavMesh(NavMesh2DBehaviour navMesh)
{
if (navMesh.NavMesh != null)
DestroyImmediate(navMesh.NavMesh);
if (navMesh.NavMesh2DNodes != null && navMesh.NavMesh2DNodes.Length != 0)
{
navMesh.NavMesh2DNodes = null;
}
if(navMesh.NodeNodeIndexQuadTree != null)
{
DestroyImmediate(navMesh.NodeNodeIndexQuadTree);
}
navMesh.NavMesh2DNodes = null;
navMesh.Contours = null;
}
public override void OnInspectorGUI()
{
NavMesh2DBehaviour _sceneNavmesh = target as NavMesh2DBehaviour;
if (_sceneNavmesh == null)
{
return;
}
GUIStyle informationPanel = new GUIStyle(EditorStyles.miniLabel);
informationPanel.normal.background = EditorGUIUtility.whiteTexture;
informationPanel.padding = new RectOffset(10, 10, 10, 10);
informationPanel.margin = new RectOffset(10, 15, 20, 20);
Color restoreColor = GUI.color;
GUI.color = new Color(0, 0, 0, 0.25f);
GUILayout.BeginVertical(informationPanel);
GUI.color = restoreColor;
EditorGUILayout.BeginHorizontal(EditorStyles.miniBoldLabel);
EditorGUILayout.LabelField("NavMesh2D Properties", EditorStyles.whiteMiniLabel);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Walkable Layer: ", EditorStyles.miniLabel);
EditorGUILayout.LabelField(_sceneNavmesh.GenerationInformation.WalkableColliderLayer, EditorStyles.miniLabel);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Obstruction Layer: ", EditorStyles.miniLabel);
EditorGUILayout.LabelField(_sceneNavmesh.GenerationInformation.ObstructionColliderLayer, EditorStyles.miniLabel);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Circle Subdivision Factor: ", EditorStyles.miniLabel);
EditorGUILayout.LabelField(_sceneNavmesh.GenerationInformation.CircleColliderSubdivisionFactor.ToString(), EditorStyles.miniLabel);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Float Precision: ", EditorStyles.miniLabel);
EditorGUILayout.LabelField(Mathf.Log10(_sceneNavmesh.GenerationInformation.CalculationScaleFactor).ToString(), EditorStyles.miniLabel);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Obstruction Padding: ", EditorStyles.miniLabel);
EditorGUILayout.LabelField(_sceneNavmesh.GenerationInformation.ColliderPadding.ToString(), EditorStyles.miniLabel);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Join Type: ", EditorStyles.miniLabel);
EditorGUILayout.LabelField(_sceneNavmesh.GenerationInformation.JoinType.ToString(), EditorStyles.miniLabel);
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Baked Grid: ", EditorStyles.miniLabel);
EditorGUILayout.LabelField(_sceneNavmesh.GenerationInformation.UseGrid ? "Yes" : "No", EditorStyles.miniLabel);
EditorGUILayout.EndHorizontal();
if (_sceneNavmesh.GenerationInformation.UseGrid)
{
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Grid Size: ", EditorStyles.miniLabel);
EditorGUILayout.LabelField(_sceneNavmesh.GenerationInformation.GridSize.ToString(), EditorStyles.miniLabel);
EditorGUILayout.EndHorizontal();
}
GUILayout.EndVertical();
}
void RefreshReferences()
{
_showNavmesh = EditorPrefs.GetBool("PCTK_NM2DG_ShowNavMesh", true);
_showNavmeshWire = EditorPrefs.GetBool("PCTK_NM2DG_ShowNavMeshWire", false);
_showQuadTree = EditorPrefs.GetBool("PCTK_NM2DG_ShowQuadTree", false);
_pathTester = EditorPrefs.GetBool("PCTK_NM2DG_ShowPathTester", false);
string[] gridDrawColor = EditorPrefs.GetString("PCTK_NM2DG_DrawColor", "0,0.627,1,0.5").Split(',');
_drawColor = new Color(float.Parse(gridDrawColor[0]), float.Parse(gridDrawColor[1]),
float.Parse(gridDrawColor[2]), float.Parse(gridDrawColor[3]));
string[] gridSizeString = EditorPrefs.GetString("PCTK_NM2DG_GridSize", "1.5,1.5").Split(',');
GenerationInformation = new NavMesh2DBehaviour.NavmeshGenerationInformation
{
CalculationScaleFactor = EditorPrefs.GetFloat("PCTK_NM2DG_CalculationScaleFactor", 100f),
CircleColliderSubdivisionFactor = EditorPrefs.GetFloat("PCTK_NM2DG_CircleColliderSubdivisionFactor", 0.25f),
ColliderPadding = EditorPrefs.GetFloat("PCTK_NM2DG_ColliderPadding", 0.1f),
UseGrid = EditorPrefs.GetBool("PCTK_NM2DG_EnableGrid", true),
GridSize = new Vector2(float.Parse(gridSizeString[0]), float.Parse(gridSizeString[1])),
JoinType = (global::PigeonCoopToolkit.Navmesh2D.NavMesh2DBehaviour.JoinType)EditorPrefs.GetInt("PCTK_NM2DG_JoinType", (int)JoinType.jtSquare),
ObstructionColliderLayer = EditorPrefs.GetString("PCTK_NM2DG_ObstructionColliderLayer", ""),
WalkableColliderLayer = EditorPrefs.GetString("PCTK_NM2DG_WalkableColliderLayer", ""),
};
_navMeshPreviewMat = Resources.Load<Material>("PCTK/NM2DG/NavmeshOverlay");
NavMesh2DBehaviour[] sceneNavMeshes = FindObjectsOfType<NavMesh2DBehaviour>();
if (sceneNavMeshes.Length > 1)
{
for (int i = 0; i < sceneNavMeshes.Length; i++)
{
DestroyImmediate(sceneNavMeshes[i].gameObject);
}
_sceneNavmesh = null;
}
else if (sceneNavMeshes.Length == 1)
{
_sceneNavmesh = sceneNavMeshes[0];
if (VersionInformation().Match(_sceneNavmesh.Version,true) == false)
{
EditorUtility.DisplayDialog("NavMesh2D Version Mismatch",
string.Format("The 2D navmesh for this scene was built with an older version ({0}) of NavMesh2D, you will have to rebuild it with this version ({1})", _sceneNavmesh.Version, VersionInformation()),"OK");
DestroySceneNavMesh();
}
}
else
{
_sceneNavmesh = null;
}
SceneView.RepaintAll();
Repaint();
}
void RunGeneration()
{
GameObject tempNavMeshObject = new GameObject("NavMesh2D");
NavMesh2DBehaviour tempNavMesh = tempNavMeshObject.AddComponent<NavMesh2DBehaviour>();
try
{
EditorUtility.ClearProgressBar();
if(EditorUtility.DisplayCancelableProgressBar("Generating NavMesh2D", "Finding Scene Colliders", 0.05f))
throw new System.OperationCanceledException("User canceled.");
Collider2D[] allColliders = FindObjectsOfType<Collider2D>();
if (allColliders.Length == 0)
{
throw new System.Exception("No Collider2D's in Scene");
}
if(EditorUtility.DisplayCancelableProgressBar("Generating NavMesh2D", "Generating and clipping polygons", 0.1f))
throw new System.OperationCanceledException("User canceled.");
PolyTreeEdgesRetained treeEdgesRetained = PrepairPolyTree(
allColliders.Where(a => a.gameObject.layer == LayerMask.NameToLayer(GenerationInformation.WalkableColliderLayer)).ToArray(),
allColliders.Where(a => a.gameObject.layer == LayerMask.NameToLayer(GenerationInformation.ObstructionColliderLayer)).ToArray()
);
if(EditorUtility.DisplayCancelableProgressBar("Generating NavMesh2D", "Extracting visual data from polygons", 0.2f))
throw new System.OperationCanceledException("User canceled.");
tempNavMesh.Contours = ExtractMeshContour(treeEdgesRetained);
if(EditorUtility.DisplayCancelableProgressBar("Generating NavMesh2D", "Triangulating polygons", 0.3f))
throw new System.OperationCanceledException("User canceled.");
List<Polygon> triangulatedPolygons = TriangulatePolyTree(treeEdgesRetained.Tree);
if(EditorUtility.DisplayCancelableProgressBar("Generating NavMesh2D", "Genearting preview mesh", 0.4f))
throw new System.OperationCanceledException("User canceled.");
tempNavMesh.NavMesh = GenerateMesh(triangulatedPolygons);
if(EditorUtility.DisplayCancelableProgressBar("Generating NavMesh2D", "Generating node network", 0.5f))
throw new System.OperationCanceledException("User canceled.");
tempNavMesh.NavMesh2DNodes = GenerateNodeNetwork(triangulatedPolygons, tempNavMesh.transform);
EditorUtility.DisplayProgressBar("Generating NavMesh2D", "Finishing up, may take a minute or two", 1f);
tempNavMesh.NodeNodeIndexQuadTree = tempNavMesh.gameObject.AddComponent<NodeIndexQuadTree>();
List<NodeIndexQuadTree.VectorIndexPair> QuadTreeObjects = new List<NodeIndexQuadTree.VectorIndexPair>();
for (int i = 0; i < tempNavMesh.NavMesh2DNodes.Length; i++)
{
QuadTreeObjects.Add(new NodeIndexQuadTree.VectorIndexPair
{Obj = i, Position = tempNavMesh.NavMesh2DNodes[i].position});
}
tempNavMesh.NodeNodeIndexQuadTree.SetIndicies(QuadTreeObjects.ToArray());
tempNavMesh.NodeNodeIndexQuadTree.GenerateQuadTree(GenerationInformation.ObstructionColliderLayer,6);
tempNavMesh.GenerationInformation = GenerationInformation;
tempNavMesh.Version = VersionInformation();
EditorUtility.SetDirty(tempNavMesh);
EditorUtility.SetDirty(tempNavMesh.NodeNodeIndexQuadTree);
foreach (var l in FindObjectsOfType<OffMeshLink2D>())
{
l.ForceReset();
}
DestroySceneNavMesh();
_sceneNavmesh = tempNavMesh;
SceneView.RepaintAll();
EditorUtility.ClearProgressBar();
}
catch (Exception e)
{
EditorUtility.DisplayProgressBar("Generating NavMesh2D", "Cleaning up, discarding all my hard work",1);
CleanNavMesh(tempNavMesh);
DestroyImmediate(tempNavMeshObject);
EditorUtility.ClearProgressBar();
if (e is OperationCanceledException == false)
{
if(e.Source == "Poly2Tri")
{
EditorUtility.DisplayDialog("Error", "Your mesh is too dense, try a larger padding, larger grid or pick Miter/Square as your join type instead of Round" , "OK");
}
else
{
EditorUtility.DisplayDialog("Error", e.Message, "OK");
}
}
}
}
