private Vertex CreateVertex(Vector2 position)
{
var overlaps = _vertices.ContainedBy(new BoundingRectangle(
new Vector2(position.X - 1, position.Y - 1),
new Vector2(position.X + 1, position.Y + 1)
));
if (overlaps.Any(a => a.Position == position))
{
throw new InvalidOperationException();
}
var vertex = new Vertex(position);
_vertices.Insert(
new BoundingRectangle(
new Vector2(position.X, position.Y),
new Vector2(position.X, position.Y)
),
vertex
);
return(vertex);
}
