public Mesh BuildCarLaneMesh()
{
if (Corners.Count != 4)
{
return(null);
}
List <Vector3> verts = new List <Vector3> {
Corners[0].Position, Corners[1].Position, Corners[2].Position, Corners[3].Position
};
verts.SortAsPointsClockwiseAlongY();
for (int i = 0; i < verts.Count; i++)
{
verts[i] -= Position;
}
List <int> tris = new List <int> {
0, 1, 2, 0, 2, 3
};
Mesh m = ExtMesh.BuildMesh(verts, tris);
m.Subdivide(2);
return(m);
}
static void GetSceneMeshes(List <ExtMesh> meshes)
{
var filters = GameObject.FindObjectsOfType(typeof(MeshFilter)) as MeshFilter[];
var filteredFilters = new List <MeshFilter>(filters.Length / 3);
var mask = StaticEditorFlags.NavigationStatic | StaticEditorFlags.LightmapStatic;
var scene = EditorSceneManager.GetActiveScene();
for (int i = 0; i < filters.Length; i++)
{
MeshFilter filter = filters[i];
Renderer render = filter.GetComponent <Renderer>();
if (render == null)
{
continue;
}
if (filter.sharedMesh == null)
{
continue;
}
var flags = GameObjectUtility.GetStaticEditorFlags(filter.gameObject);
if ((flags & ~mask) != 0)
{
GameObjectUtility.SetStaticEditorFlags(filter.gameObject, flags & mask);
EditorUtility.SetDirty(filter.gameObject);
EditorSceneManager.MarkSceneDirty(scene);
}
if (!GameObjectUtility.AreStaticEditorFlagsSet(filter.gameObject, StaticEditorFlags.NavigationStatic))
{
continue;
}
if (GameObjectUtility.GetNavMeshArea(filter.gameObject) == 0)
{
if (filter.gameObject.GetComponent <MeshCollider>() == null)
{
var c = filter.gameObject.AddComponent <MeshCollider>();
c.sharedMesh = filter.sharedMesh;
EditorUtility.SetDirty(filter.gameObject);
EditorSceneManager.MarkSceneDirty(scene);
}
}
filteredFilters.Add(filter);
}
var cachedVertices = new Dictionary <Mesh, Vector3[]>();
var cachedTris = new Dictionary <Mesh, int[]>();
for (int i = 0; i < filteredFilters.Count; i++)
{
MeshFilter filter = filteredFilters[i];
Renderer render = filter.GetComponent <Renderer>();
Mesh mesh = filter.sharedMesh;
var smesh = new ExtMesh();
smesh.Matrix = render.localToWorldMatrix;
smesh.Original = filter;
smesh.Scale = filter.gameObject.transform.localScale;
if (cachedVertices.ContainsKey(mesh))
{
smesh.Vertices = cachedVertices[mesh];
smesh.Triangles = cachedTris[mesh];
}
else
{
smesh.Vertices = mesh.vertices;
smesh.Triangles = mesh.triangles;
var normal = mesh.normals;
var uv = mesh.uv;
cachedVertices[mesh] = smesh.Vertices;
cachedTris[mesh] = smesh.Triangles;
}
smesh.Bounds = render.bounds;
smesh.Area = GameObjectUtility.GetNavMeshArea(filter.gameObject);
meshes.Add(smesh);
}
}
public List <Mesh> BuildSidewalkMeshes()
{
if (Corners.Count != 4)
{
return(null);
}
List <Mesh> meshes = new List <Mesh>();
for (int i = 0; i < Corners.Count; i++)
{
List <Vector3> verts = new List <Vector3>();
List <int> tris = new List <int>();
//a corner can only ever be connected to 1 or 2 Streets
if (Corners[i].ConnectedTo.Count == 1)
{
}
else if (Corners[i].ConnectedTo.Count == 2)
{
Vector3 offset0 = Corners[i].GetSidewalkOffset(0);
Vector3 offset1 = Corners[i].GetSidewalkOffset(0);
Vector3 yOffset = sidewalkHeight * Vector3.up;
//top face
verts.Add(Corners[i].Position - Position + yOffset);
verts.Add(Corners[i].Position + offset0 - Position + yOffset);
verts.Add(Corners[i].Position + offset1 - Position + yOffset);
verts.Add(Corners[i].Position + offset0 + offset1 - Position + yOffset);
tris.Add(0);
tris.Add(3);
tris.Add(1);
tris.Add(0);
tris.Add(2);
tris.Add(3);
//side faces
verts.Add(Corners[i].Position + offset0 - Position + yOffset);
verts.Add(Corners[i].Position + offset0 - Position - yOffset);
verts.Add(Corners[i].Position + offset0 + offset1 - Position + yOffset);
verts.Add(Corners[i].Position + offset0 + offset1 - Position - yOffset);
tris.Add(5);
tris.Add(4);
tris.Add(6);
tris.Add(5);
tris.Add(7);
tris.Add(4);
verts.Add(Corners[i].Position + offset1 - Position + yOffset);
verts.Add(Corners[i].Position + offset1 - Position - yOffset);
verts.Add(Corners[i].Position + offset0 + offset1 - Position + yOffset);
verts.Add(Corners[i].Position + offset0 + offset1 - Position - yOffset);
tris.Add(9);
tris.Add(8);
tris.Add(10);
tris.Add(9);
tris.Add(11);
tris.Add(8);
}
else
{
DB.Error("Corner of Intersection can't be built because of invalid n of connections");
}
meshes.Add(ExtMesh.BuildMesh(verts, tris));
}
return(meshes);
}
