message: Use Vector::lengthSquared in Tile::distanceTo
diff: @@ -157,5 +157,5 @@ float Tile::distanceTo(Tile* tile)
  float Tile::distanceTo(NAS2D::Point<int> point)
  {
  const auto direction = point - position();
  - return static_cast<float>(std::sqrt((direction.x * direction.x) + (direction.y * direction.y)));
  + return static_cast<float>(std::sqrt(direction.lengthSquared()));
  }
  