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);
}
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);
}