void CreateNodeMesh()
{
//CopyAllNavigation(FindAllNavigationMesh());
AstarPath aStarPath = GameObject.FindObjectOfType <AstarPath>();
if (aStarPath != null)
{
Transform nodeRoot = aStarPath.transform.Find("NodeRoot");
if (nodeRoot)
{
int count = 1;
//List<Vector3> offsets = new List<Vector3>() { Vector3.zero, -Vector3.left * 0.5f, Vector3.left * 0.5f, -Vector3.forward * 0.5f, Vector3.forward * 0.5f, };
List <float> offsets = new List <float>()
{
0, -0.3f, 0.3f, -0.6f, 0.6f
};
for (int j = 0; j < count; j++)
{
GameObject old = GameObject.Find("road_layer" + j.ToString());
if (old != null)
{
GameObject.DestroyImmediate(old);
}
GameObject road_layer = new GameObject("road_layer" + j.ToString());
NodeLink[] nodeLinks = nodeRoot.GetComponentsInChildren <NodeLink>();
switch (roadType)
{
case RoadMeshType.ROAD_BATCH:
{
int maxVerticesCount = 10000;
List <Vector3> vertices = new List <Vector3>();
List <int> triangles = new List <int>();
for (int i = 0; i < nodeLinks.Length; i++)
{
if (nodeLinks[i].Start != null && nodeLinks[i].End != null)
{
Vector3 normal = Vector3.Cross((nodeLinks[i].End.position - nodeLinks[i].Start.position), Vector3.up).normalized;
AStarHelpEditor.AddOneMesh(nodeLinks[i].Start.position + offsets[j] * normal, nodeLinks[i].End.position + offsets[j] * normal,
roadWidth,
lineCount,
vertices,
triangles,
roadHeightType);
if (i == nodeLinks.Length - 1 || vertices.Count > maxVerticesCount)
{
GameObject road = AStarHelpEditor.CreateMesh(vertices, triangles);
road.transform.parent = road_layer.transform;
GameObjectUtility.SetStaticEditorFlags(road, StaticEditorFlags.NavigationStatic);
GameObjectUtility.SetNavMeshArea(road, 3 + j);
vertices.Clear();
triangles.Clear();
}
}
}
break;
}
case RoadMeshType.ROAD_SINGLE:
{
//单独创建mesh
for (int i = 0; i < nodeLinks.Length; i++)
{
if (nodeLinks[i].Start != null && nodeLinks[i].End != null)
{
Vector3 normal = Vector3.Cross((nodeLinks[i].End.position - nodeLinks[i].Start.position), Vector3.up).normalized;
GameObject road = AStarHelpEditor.CreateMesh(nodeLinks[i].Start.position + offsets[j] * normal,
nodeLinks[i].End.position + offsets[j] * normal,
roadWidth,
lineCount,
roadHeightType);
road.transform.parent = road_layer.transform;
GameObjectUtility.SetStaticEditorFlags(road, StaticEditorFlags.NavigationStatic);
GameObjectUtility.SetNavMeshArea(road, 3 + j);
}
}
break;
}
}
road_layer.transform.position = new Vector3(0, roadHeight, 0);
}
}
}
UnityEditor.SceneManagement.EditorSceneManager.MarkSceneDirty(UnityEditor.SceneManagement.EditorSceneManager.GetActiveScene());
}