internal List <Vector3> Get_sensitive_vertices(GameObject rmc)
{
List <Vector3> sensitive_vertices = new List <Vector3>();
// suppose MeshVerts returns nxm unconstrained mesh
Vector3[] verts = Build.GetMeshVerts(rmc);
Quarter[] tile_quarters = Quarter.Generate_All_Quarters(rmc);
for (int index = 0; index < verts.Length; index++)
{
Vector3 v = rmc.transform.TransformPoint(verts[index]);
v.x = Mathf.Round(v.x);
v.z = Mathf.Round(v.z);
if (!Consts.IsWithinMapBounds(v))
{
continue;
}
if (v.x % 4 == 0 && v.z % 4 == 0)
{
sensitive_vertices.Add(v);
continue;
}
// find a quarter that given vertex belongs to and get information about restriction pattern
Quarter quarter = tile_quarters.Aggregate(
(minItem, nextItem) => Consts.Distance(minItem.pos, v) < Consts.Distance(nextItem.pos, v) ? minItem : nextItem);
if (quarter.qt.Unrestricted())
{
sensitive_vertices.Add(v);
}
else if (quarter.qt.Both_restricted())
{
if (quarter.original_grid.Contains(Consts.PosToIndex(v)) && !Consts.Lies_on_any_restricted_borders(v, quarter))
{
sensitive_vertices.Add(v);
}
}
else if (quarter.qt.Horizontal_restricted())
{
if (quarter.original_grid.Contains(Consts.PosToIndex(v)) && !Consts.Lies_on_restricted_border(v, BorderType.Horizontal, quarter))
{
sensitive_vertices.Add(v);
}
}
else if (quarter.qt.Vertical_restricted())
{
if (quarter.original_grid.Contains(Consts.PosToIndex(v)) && !Consts.Lies_on_restricted_border(v, BorderType.Vertical, quarter))
{
sensitive_vertices.Add(v);
}
}
}
return(sensitive_vertices);
}