private bool ConstructibleSpot(System.Drawing.Point p) { bool inside; if (Helpers.IsInPolygon(Hill, p)) { return(false); // cannot build inside } for (int s = 1; s < Hill.Count(); s++) { if (Helpers.DistanceToLine(p, Hill[s - 1], Hill[s], out inside) < CONSTRUCTION_ZONE && inside) { return(true); } } if (Helpers.DistanceToLine(p, Hill[Hill.Count() - 1], Hill[0], out inside) < CONSTRUCTION_ZONE && inside) { return(true); } Console.WriteLine($"Attempt to build non-constructible spot {p}"); return(false); }