/// <summary>
/// Add a new branch to the path.
/// New branches are assumed to be brand-new, consisting of nothing more than their default initial node.
/// </summary>
/// <param name="branch"></param>
private void Add(Branch branch)
{
if (branch.Count > 1)
{
throw new PathException(PATH_EXCEPTION_TYPE.BRANCH_POPULATED);
}
Branches.Add(branch.ID, branch);
OuterBranchIDs.Add(branch.ID);
SetNodeDirectoryData(branch.InNode);
}
/// <summary>
/// Branch the passed branch.
/// Remove the branch from the OuterBranchIds collection and add new branches based on it's InNode InDirection (the outer-most node in a branch).
/// Throw an exception if the branch is open.
/// </summary>
/// <param name="branchingBranch"></param>
public void Branch(int branchId)
{
Branch branchingBranch = Branches[branchId];
if (branchingBranch.Open)
{
throw new PathException(PATH_EXCEPTION_TYPE.BRANCH_OPEN);
}
OuterBranchIDs.Remove(branchingBranch.ID);
foreach (NODE_DIRECTION direction in branchingBranch.InNode.InDirection.GetDirections())
{
Branch outerBranch = new Branch(_branchId++, branchingBranch.InNode, direction, this);
Add(outerBranch);
}
}
