public void Registration(Hold hold)
{
if (choiced != (int)Choice.None)
{
bool[] onHolds = hold.GetOnHold();
if (onHolds[choiced])
{
hold.SetOnHold(choiced, false);
curFocusHolds[choiced] = null;
}
else
{
hold.SetOnHold(choiced, true);
if (curFocusHolds[choiced] != null)
{
curFocusHolds[choiced].SetOnHold(choiced, false);
}
curFocusHolds[choiced] = hold;
}
}
}