public void UpdatePatternList()
{
//clear list
_patterns.Clear();
//valid target check
if (target == null)
{
return;
}
int index = _cornerlist.index;
if (_corners.Count <= 0 || index < 0 || index >= _cornerlist.count)
{
return;
}
//fill list
target.AddCornerPatternsToList(_corners[index], _patterns);
}