public static Vector3 GetHeight(CenterRoadWnd.RoadMeshHeightType roadHeightType, Vector3 point)
{
switch (roadHeightType)
{
case CenterRoadWnd.RoadMeshHeightType.MESH_HEIGHT_GROUND_LAYER:
{
Vector3 rayOrigPoint = point + Vector3.up * 500;
RaycastHit hitinfo;
if (Physics.Raycast(rayOrigPoint, Vector3.down, out hitinfo, 1000, LayerDefine.layerMask))
{
return(hitinfo.point);
}
break;
}
case CenterRoadWnd.RoadMeshHeightType.MESH_HEIGHT_NAVIGATION:
{
Vector3 rayOrigPoint = point + Vector3.up * 500;
RaycastHit hitinfo;
if (Physics.Raycast(rayOrigPoint, Vector3.down, out hitinfo, 1000, 1 << LayerDefine.Invisible))
{
return(hitinfo.point);
}
break;
}
case CenterRoadWnd.RoadMeshHeightType.MESH_HEIGHT_POINT:
{
break;
}
}
return(point);
}
public static void AddOneMesh(Vector3 start, Vector3 end, float width, int count, List <Vector3> _vertices, List <int> _triangles, CenterRoadWnd.RoadMeshHeightType roadHeightType)
{
int segment = count + 1;
Vector3 normal = Vector3.Cross((end - start), Vector3.up).normalized;
Vector3[] vertices = new Vector3[segment * 2];
for (int i = 0; i < segment; i++)
{
vertices[i * 2] = Vector3.Lerp(start, end, i / (float)count) + normal * width;
vertices[i * 2 + 1] = Vector3.Lerp(start, end, i / (float)count) - normal * width;
vertices[i * 2] = GetHeight(roadHeightType, vertices[i * 2]);
vertices[i * 2 + 1] = GetHeight(roadHeightType, vertices[i * 2 + 1]);
}
int[] triangles = new int[count * 6];
for (int i = 0; i < count; i++)
{
triangles[i * 6] = _vertices.Count + i * 2;
triangles[i * 6 + 1] = _vertices.Count + i * 2 + 2;
triangles[i * 6 + 2] = _vertices.Count + i * 2 + 1;
triangles[i * 6 + 3] = _vertices.Count + i * 2 + 1;
triangles[i * 6 + 4] = _vertices.Count + i * 2 + 2;
triangles[i * 6 + 5] = _vertices.Count + i * 2 + 3;
}
_vertices.AddRange(vertices);
_triangles.AddRange(triangles);
}
//[MenuItem("Tools/路点/创建路点mesh")]
//static 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 };
// float height = 0.0f;
// for (int j = 0; j < count; j++)
// {
// GameObject road_layer = new GameObject("road_layer" + j.ToString());
// NodeLink[] nodeLinks = nodeRoot.GetComponentsInChildren<NodeLink>();
// //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 = CreateMesh(nodeLinks[i].Start.position + offsets[j] * normal, nodeLinks[i].End.position + offsets[j] * normal);
// // road.transform.parent = road_layer.transform;
// // GameObjectUtility.SetStaticEditorFlags(road, StaticEditorFlags.NavigationStatic);
// // GameObjectUtility.SetNavMeshArea(road, 3 + j);
// // }
// //}
// 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;
// AddOneMesh(nodeLinks[i].Start.position + offsets[j] * normal, nodeLinks[i].End.position + offsets[j] * normal, 0.5f, 100, vertices, triangles);
// if (i == nodeLinks.Length - 1 || vertices.Count > maxVerticesCount)
// {
// GameObject road = CreateMesh(vertices, triangles);
// road.transform.parent = road_layer.transform;
// GameObjectUtility.SetStaticEditorFlags(road, StaticEditorFlags.NavigationStatic);
// GameObjectUtility.SetNavMeshArea(road, 3 + j);
// road_layer.transform.position = new Vector3(0, height, 0);
// vertices.Clear();
// triangles.Clear();
// }
// }
// }
// }
// }
// }
// UnityEditor.SceneManagement.EditorSceneManager.MarkSceneDirty(UnityEditor.SceneManagement.EditorSceneManager.GetActiveScene());
//}
#endregion
public static GameObject CreateMesh(Vector3 start, Vector3 end, float width, int count, CenterRoadWnd.RoadMeshHeightType roadHeightType)
{
int segment = count + 1;
Vector3 normal = Vector3.Cross((end - start), Vector3.up).normalized;
Vector3[] vertices = new Vector3[segment * 2];
for (int i = 0; i < segment; i++)
{
vertices[i * 2] = Vector3.Lerp(start, end, i / (float)count) + normal * width;
vertices[i * 2 + 1] = Vector3.Lerp(start, end, i / (float)count) - normal * width;
vertices[i * 2] = GetHeight(roadHeightType, vertices[i * 2]);
vertices[i * 2 + 1] = GetHeight(roadHeightType, vertices[i * 2 + 1]);
}
int[] triangles = new int[count * 6];
for (int i = 0; i < count; i++)
{
triangles[i * 6] = i * 2;
triangles[i * 6 + 1] = i * 2 + 2;
triangles[i * 6 + 2] = i * 2 + 1;
triangles[i * 6 + 3] = i * 2 + 1;
triangles[i * 6 + 4] = i * 2 + 2;
triangles[i * 6 + 5] = i * 2 + 3;
}
Mesh mesh = new Mesh();
mesh.vertices = vertices;
mesh.triangles = triangles;
mesh.RecalculateNormals();
mesh.RecalculateBounds();
GameObject go = new GameObject();
MeshFilter meshFilter = go.AddComponent <MeshFilter>();
meshFilter.mesh = mesh;
MeshRenderer meshRenderer = go.AddComponent <MeshRenderer>();
return(go);
}
