/// <summary>
/// Deletes the vertex with the specified id within the given edge.
/// The id corresponds to the array position within the point array of the edge.
/// </summary>
/// <param name="vertexId">ID of the vertex that should be deleted</param>
/// <returns>Retruns true if path is still valid</returns>
public static bool DeleteVertex(this EdgeCollider2D edge, int vertexId)
{
Undo.RecordObjects(new Object[] { edge, edge.transform }, string.Format("Delete vertex in {0}", edge.name));
// Delete polygon if only one vertex left.
if (edge.points.Length <= 2)
{
return(false);
}
var tmp = new Vector2[edge.points.Length - 1];
System.Array.Copy(edge.points, 0, tmp, 0, vertexId);
System.Array.Copy(edge.points, vertexId + 1, tmp, vertexId, tmp.Length - vertexId);
edge.points = tmp;
edge.UpdateCenter();
return(true);
}
