public void AddWord(Word word)
{
if (words.Contains(word))
{
return;
}
words.Add(word);
// Check if word can be linked to others
foreach (Word other in words)
{
if (LinkTypes.IsOneLetterChange(word.Text, other.Text))
{
Link link = new Link(word, other, LinkType.OneLetterChange);
AddLink(link);
}
if (LinkTypes.IsOneLetterAddOrRemove(word.Text, other.Text))
{
Link link = new Link(word, other, LinkType.OneLetterAddOrRemove);
AddLink(link);
}
if (LinkTypes.IsAnagram(word.Text, other.Text))
{
Link link = new Link(word, other, LinkType.Anagram);
AddLink(link);
}
}
}
public void IsOneLetterChange()
{
Assert.IsTrue(LinkTypes.IsOneLetterChange("moon", "moan"));
Assert.IsTrue(LinkTypes.IsOneLetterChange("cart", "care"));
Assert.IsFalse(LinkTypes.IsOneLetterChange("cat", "bit"));
Assert.IsFalse(LinkTypes.IsOneLetterChange("cat", "angle"));
Assert.IsFalse(LinkTypes.IsOneLetterChange("cat", "cat"));
}
public Link(Word wordA, Word wordB, LinkType type)
{
this.WordA = wordA;
this.WordB = wordB;
this.Type = type;
if (type == LinkType.Anagram && !LinkTypes.IsAnagram(WordA.Text, WordB.Text))
{
throw new Exception(WordA.Text + " is not an anagram of " + WordB.Text);
}
if (type == LinkType.OneLetterChange && !LinkTypes.IsOneLetterChange(WordA.Text, WordB.Text))
{
throw new Exception(WordA.Text + " is not a letter change from " + WordB.Text);
}
if (type == LinkType.OneLetterAddOrRemove && !LinkTypes.IsOneLetterAddOrRemove(WordA.Text, WordB.Text))
{
throw new Exception(WordA.Text + " is not a letter additon or subtraction to " + WordB.Text);
}
}
