/// <summary>
/// Find the best fit grid based on the first child
/// </summary>
/// <param name="wordList"></param>
private void GetBestWordData(List <String> wordList, int maxGroup)
{
if (wordList == null || maxGroup == 0)
{
return;
}
List <LetterInfo> traversedLetters = new List <LetterInfo>();
List <String> traversedWords = new List <string>();
List <LetterInfo> temp = new List <LetterInfo>();
// Test which letter would be the most suitable insertion letter in current word
foreach (LetterInfo letter in letters)
{
temp.Add(letter);
}
while (temp.Count > 0)
{
List <LetterInfo> IntersectionLetterList = new List <LetterInfo>();
// Find out what letter in suitable for insertion letter
foreach (LetterInfo letter in temp)
{
IntersectionLetterList.Add(letter);
}
if (IntersectionLetterList.Count == 0)
{
break;
}
// Test each word from remaining words in wordlist
List <String> remainWordList = new List <String>();
foreach (String word in wordList)
{
remainWordList.Add(word);
}
foreach (String word in traversedWords)
{
remainWordList.Remove(word);
}
// Find out the following best insertion words
while (IntersectionLetterList.Count > 0 && remainWordList.Count > 0)
{
int baseScore = -1;
List <String> insertWords = new List <string>();
foreach (String word in remainWordList)
{
bool IsInsertionLetter = false;
for (int i = 0; i < IntersectionLetterList.Count; i++)
{
foreach (char letter in word)
{
if (letter == IntersectionLetterList[i].Letter)
{
IsInsertionLetter = true;
}
}
if (IsInsertionLetter == true)
{
int actualScore = WordInfo.GetBaseScore(word, IntersectionLetterList[i].Letter, maxGroup, IntersectingPointsPerLetter, NonIntersectingPointsPerLetter, pointsPerWord);
if (baseScore < actualScore)
{
insertWords.Clear();
baseScore = actualScore;
insertWords.Add(word);
}
else if (baseScore == actualScore)
{
insertWords.Add(word);
}
}
}
}
if (insertWords.Count == 0)
{
break;
}
for (int i = 0; i < IntersectionLetterList.Count; i++)
{
for (int j = 0; j < insertWords.Count; j++)
{
if (InsertWords(IntersectionLetterList[i], insertWords[j]))
{
traversedWords.Add(insertWords[j]);
remainWordList.Remove(insertWords[j]);
insertWords.Remove(insertWords[j]);
temp.Clear();
foreach (LetterInfo letter in letters)
{
temp.Add(letter);
}
traversedLetters.Add(IntersectionLetterList[i]);
IntersectionLetterList.Remove(IntersectionLetterList[i]);
i--;
j--;
break;
}
}
}
for (int i = 0; i < insertWords.Count; i++)
{
remainWordList.Remove(insertWords[i]);
}
}
for (int i = 0; i < IntersectionLetterList.Count; i++)
{
traversedLetters.Add(IntersectionLetterList[i]);
}
foreach (LetterInfo letter in traversedLetters)
{
if (temp.Contains(letter))
{
temp.Remove(letter);
}
}
}
}
/// <summary>
/// Determin whether the insert word could insert into the letter in insert letter list, and process insertion if positive
/// </summary>
/// <param name="insertionLetter"></param>
/// <param name="word"></param>
/// <returns></returns>
private bool InsertWords(LetterInfo insertionLetter, String word)
{
if (IsEmpty())
{
return(false);
}
List <int> locations = new List <int>();
for (int i = 0; i < word.Length; i++)
{
if (word[i] == insertionLetter.Letter)
{
locations.Add(i);
}
}
if (locations.Count == 0)
{
return(false);
}
String direction = vertical;
int insertIndex = -1;
int decrease = -1;
int plus = -1;
// Determine if it could be inserted horizontally
foreach (int location in locations)
{
decrease = location;
plus = word.Length - location;
if (insertionLetter.Column - decrease < 0 || insertionLetter.Column + plus > CrozzleColumn)
{
continue;
}
bool Continue = false;
for (int gLocation = insertionLetter.Column - decrease; gLocation < insertionLetter.Column + plus; gLocation++)
{
if (gLocation == insertionLetter.Column)
{
continue;
}
if (GridContent[insertionLetter.Row, gLocation] != ' ')
{
Continue = true;
break;
}
if (gLocation == insertionLetter.Column - 1 || gLocation == insertionLetter.Column + 1)
{
// The 4 direction of inserted letter only allows 1 letter
if (CheckSurrounding(insertionLetter.Row, gLocation) > 1)
{
Continue = true;
break;
}
LetterInfo testLetter = new LetterInfo(insertionLetter.Row, gLocation, word[gLocation - (insertionLetter.Column - decrease)]);
// Check surrounding specific circumstances (2 letters around)
if (LetterInfo.HasAdjacentLetters(testLetter, insertionLetter, CrozzleRow, CrozzleColumn, GridContent))
{
Continue = true;
break;
}
}
else
{
if (CheckSurrounding(insertionLetter.Row, gLocation) > 0)
{
Continue = true;
break;
}
}
}
if (Continue == true)
{
continue;
}
else
{
// The word could be inserted horizontaly
direction = horizontal;
insertIndex = location;
break;
}
}
if (direction == vertical)
{
foreach (int location in locations)
{
decrease = location;
plus = word.Length - location;
if (insertionLetter.Row - decrease < 0 || insertionLetter.Row + plus > CrozzleRow)
{
continue;
}
bool Continue = false;
for (int gLocation = insertionLetter.Row - decrease; gLocation < insertionLetter.Row + plus; gLocation++)
{
if (gLocation == insertionLetter.Row)
{
continue;
}
if (GridContent[gLocation, insertionLetter.Column] != ' ')
{
Continue = true;
break;
}
if (gLocation == insertionLetter.Row - 1 || gLocation == insertionLetter.Row + 1)
{
// the same as vertical
if (CheckSurrounding(gLocation, insertionLetter.Column) > 1)
{
Continue = true;
break;
}
LetterInfo testLetter = new LetterInfo(gLocation, insertionLetter.Column, word[gLocation - (insertionLetter.Row - decrease)]);
if (LetterInfo.HasAdjacentLetters(testLetter, insertionLetter, CrozzleRow, CrozzleColumn, GridContent))
{
Continue = true;
break;
}
}
else
{
if (CheckSurrounding(gLocation, insertionLetter.Column) > 0)
{
Continue = true;
break;
}
}
}
if (Continue == true)
{
continue;
}
else
{
// The word can be inserted vertically
direction = vertical;
insertIndex = location;
break;
}
}
}
// If thw word can't be inserted
if (insertIndex == -1)
{
return(false);
}
if (direction == horizontal)
{
for (int gLocation = insertionLetter.Column - decrease, i = 0; gLocation < insertionLetter.Column + plus; gLocation++, i++)
{
GridContent[insertionLetter.Row, gLocation] = word[i];
}
}
else if (direction == vertical)
{
for (int gLocation = insertionLetter.Row - decrease, i = 0; gLocation < insertionLetter.Row + plus; gLocation++, i++)
{
GridContent[gLocation, insertionLetter.Column] = word[i];
}
}
SaveLetters();
score = WordInfo.CalculateScore(pointsPerWord, CrozzleRow, CrozzleColumn, GridContent, IntersectingPointsPerLetter, NonIntersectingPointsPerLetter);
return(true);
}
/// <summary>
/// Contains Greedy Algorithm which searches the best fit grid
/// </summary>
/// <param name="wordlist"></param>
/// <returns></returns>
public List <String> GreedyAlgorithm(List <String> wordlist, int maxGroup, int minGroup, out TimeSpan timeConsume)
{
// Set timer
timer = new Stopwatch();
timer.Start();
Grid maxGrid = null;
Grid grid = new Grid(CrozzleRow, CrozzleColumn, IntersectingPointsPerLetter, NonIntersectingPointsPerLetter, pointsPerWord);
List <String> temp = new List <string>();
// Get all posibilities of the first insertion word lication and orientations
List <Grid> firstChilds = new List <Grid>();
if (IsEmpty())
{
// Get the first inserted letter or letters under multiple group circumstances
int currentScore = -1;
String firstInsertedWord = null;
String firstInsertedWord2 = null;
char firstIntersectiveLetter = '\0';
char firstIntersectiveLetter2 = '\0';
foreach (char key in IntersectingPointsPerLetter.Keys)
{
temp.Clear();
temp.AddRange(wordlist);
firstIntersectiveLetter = key;
currentScore = -1;
foreach (String word in wordlist)
{
int baseScore = WordInfo.GetBaseScore(word, firstIntersectiveLetter, maxGroup, IntersectingPointsPerLetter, NonIntersectingPointsPerLetter, pointsPerWord);
if (currentScore < baseScore)
{
currentScore = baseScore;
firstInsertedWord = word;
}
}
temp.Remove(firstInsertedWord);
if (maxGroup >= 2 && minGroup != 1)
{
int currentScore2 = -1;
foreach (char key1 in IntersectingPointsPerLetter.Keys)
{
if (currentScore2 < IntersectingPointsPerLetter[key1])
{
currentScore2 = IntersectingPointsPerLetter[key1];
firstIntersectiveLetter2 = key1;
}
}
currentScore2 = -1;
foreach (String word in temp)
{
int basescore = WordInfo.GetBaseScore(word, firstIntersectiveLetter2, maxGroup, IntersectingPointsPerLetter, NonIntersectingPointsPerLetter, pointsPerWord);
if (currentScore2 < basescore)
{
currentScore2 = basescore;
firstInsertedWord2 = word;
}
}
temp.Remove(firstInsertedWord2);
}
// All horizental insertions posibilities
for (int r = 0; r <= CrozzleRow - 1; r++)
{
for (int c = 0; c <= CrozzleColumn - firstInsertedWord.Length; c++)
{
Grid tempGrid = new Grid(CrozzleRow, CrozzleColumn, IntersectingPointsPerLetter, NonIntersectingPointsPerLetter, PointsPerWord);
tempGrid.subWordList = new List <string>();
if (maxGroup > 1 && minGroup != 1)
{
if (r <= 1)
{
if (c + firstInsertedWord.Length >= CrozzleColumn - firstInsertedWord2.Length - 1)
{
continue;
}
}
for (int i = 0; i < firstInsertedWord2.Length; i++)
{
if (CrozzleColumn - firstInsertedWord2.Length + i < 0)
{
break;
}
else
{
tempGrid.GridCoordinate[0, CrozzleColumn - firstInsertedWord2.Length + i] = firstInsertedWord2[i];
}
}
}
for (int lp = 0; lp < firstInsertedWord.Length; lp++)
{
tempGrid.GridCoordinate[r, c + lp] = firstInsertedWord[lp];
tempGrid.SaveLetters();
score = WordInfo.CalculateScore(pointsPerWord, CrozzleRow, CrozzleColumn, GridContent, IntersectingPointsPerLetter, NonIntersectingPointsPerLetter);
}
if (!tempGrid.IsEmpty())
{
tempGrid.subWordList.AddRange(temp);
firstChilds.Add(tempGrid);
}
}
}
// All vertical insertions posibilities
for (int c = 0; c < CrozzleColumn; c++)
{
for (int r = 0; r <= CrozzleRow - firstInsertedWord.Length; r++)
{
Grid tempGrid = new Grid(CrozzleRow, CrozzleColumn, IntersectingPointsPerLetter, NonIntersectingPointsPerLetter, PointsPerWord);
tempGrid.subWordList = new List <string>();
if (maxGroup > 1 && minGroup != 1)
{
if (r <= 2)
{
if (c >= CrozzleColumn - firstInsertedWord2.Length - 1)
{
continue;
}
}
for (int i = 0; i < firstInsertedWord2.Length; i++)
{
if (CrozzleColumn - firstInsertedWord2.Length + i < 0)
{
break;
}
else
{
tempGrid.GridCoordinate[0, CrozzleColumn - firstInsertedWord2.Length + i] = firstInsertedWord2[i];
}
}
}
for (int lp = 0; lp < firstInsertedWord.Length; lp++)
{
tempGrid.GridCoordinate[r + lp, c] = firstInsertedWord[lp];
tempGrid.SaveLetters();
score = WordInfo.CalculateScore(pointsPerWord, CrozzleRow, CrozzleColumn, GridContent, IntersectingPointsPerLetter, NonIntersectingPointsPerLetter);
}
if (!tempGrid.IsEmpty())
{
tempGrid.subWordList.AddRange(temp);
firstChilds.Add(tempGrid);
}
}
}
}
}
// Find the rest insertions, get the best grid
for (int i = 0; i < firstChilds.Count && timer.Elapsed.TotalMilliseconds < 400000; i++)
{
if (minGroup != 1)
{
firstChilds[i].GetBestWordData(firstChilds[i].subWordList, maxGroup);
}
else
{
firstChilds[i].GetBestWordData(firstChilds[i].subWordList, 1);
}
// Validate each generated crozzle
CrozzleValid = Validate(firstChilds[i]);
if (firstChilds[i].Score > grid.Score && CrozzleValid)
{
grid = firstChilds[i];
}
}
// Generate the newKeyValue to replace the origialKeyValue
maxGrid = grid;
List <String> GenerateKeyValueGroup = new List <string>();
List <WordInfo> list = WordInfo.GetWordInfo(grid.GridContent, CrozzleRow, CrozzleColumn);
String newLine = null;
foreach (WordInfo word in list)
{
if (word.direction == horizontal)
{
newLine = "ROW=" + (word.startRow + 1) + "," + word.word + "," + (word.startCol + 1);
GenerateKeyValueGroup.Add(newLine);
}
}
foreach (WordInfo word in list)
{
if (word.direction == vertical)
{
newLine = "COLUMN=" + (word.startCol + 1) + "," + word.word + "," + (word.startRow + 1);
GenerateKeyValueGroup.Add(newLine);
}
}
// Stop the time after calculation
timer.Stop();
// If the time has passed the limit
if (timer.Elapsed.TotalMilliseconds >= 400000)
{
timeConsume = TimeSpan.Zero;
}
else
{
timeConsume = timer.Elapsed;
}
return(GenerateKeyValueGroup);
}