private bool RemoveCollidingBond(uint instanceId, BondAttachment attachment, List <Bond> previousBonds, BondType newBondType)
{
bool result = true;
if (!attachment.IsGuide() && bonds.ContainsKey(instanceId))
{
Bond cb = null;
foreach (Bond b in bonds[instanceId])
{
cb = b.GetCollidingBond(attachment);
if (cb != null)
{
break;
}
}
if (cb != null)
{
bool oldIsFlow = cb.ChainType != ChainType.None;
bool newIsLock = newBondType == BondType.Lock;
// locks can't break flow bonds
if (oldIsFlow && newIsLock)
{
result = false;
}
else
{
RemoveBond(cb);
previousBonds.Add(cb);
}
}
}
return(result);
}
