/// <summary>
/// If word already exists anywhere in map, just increase its occurrence.
/// Otherwise inserts word into word map as the child of the node we're currently working on.
/// </summary>
/// <param name="word">Word to insert</param>
private void InsertWord(string word)
{
_previouslyWorkingOn = _currentlyWorkingOn;
// If map doesn't already contain word, add it
if (AllNodes.Exists(x => x.Word == word) == false)
{
_currentlyWorkingOn = new WordMapNode(word, _nextNodeId);
_nextNodeId++;
if (_previouslyWorkingOn != null)
{
//Debug.Log($"Inserted {_currentlyWorkingOn.Word}");
_previouslyWorkingOn.Next.Add(_currentlyWorkingOn);
_currentlyWorkingOn.Previous.Add(_previouslyWorkingOn);
}
else
{
StartingNodes.Add(_currentlyWorkingOn);
}
AllNodes.Add(_currentlyWorkingOn);
}
else
{
// If map already contains word, find it and increase its occurrence rate
_currentlyWorkingOn = AllNodes.Find(x => x.Word == word);
if (_currentlyWorkingOn == null)
{
return;
}
_currentlyWorkingOn.Occurrences++;
if (_previouslyWorkingOn == null)
{
return;
}
//Debug.Assert(_previouslyWorkingOn.Next.Contains(_currentlyWorkingOn) == false, $"{_previouslyWorkingOn.Word} already had {_currentlyWorkingOn.Word} as NEXT");
//Debug.Assert(_currentlyWorkingOn.Previous.Contains(_previouslyWorkingOn) == false, $"{_currentlyWorkingOn.Word} already had {_previouslyWorkingOn.Word} as PREVIOUS");
if (_previouslyWorkingOn.Next.Contains(_currentlyWorkingOn) == false)
{
_previouslyWorkingOn.Next.Add(_currentlyWorkingOn);
}
if (_currentlyWorkingOn.Previous.Contains(_previouslyWorkingOn) == false)
{
_currentlyWorkingOn.Previous.Add(_previouslyWorkingOn);
}
}
}
/// <summary>
/// Find node with word. Returns null if nothing found.
/// </summary>
/// <param name="word">Word to try and find</param>
/// <returns>Found node</returns>
public WordMapNode FindNode(string word)
{
return(AllNodes.Find(x => x.Word == word));
}