private bool TryFillingWord(DirectionInGrid direction, LocationOnGrid location, string word, Puzzle notYetCompletelyFilledPuzzle)
{
var targetSpaceInGrid = notYetCompletelyFilledPuzzle.GetWordOfLengthInDirectionAtLocation(word.Length, direction, location);
var okToPutWord = true;
for (int i = 0; i < word.Length; i++)
{
var cWord = word[i];
var cTarget = targetSpaceInGrid[i];
if ((cTarget == ' ') || (cTarget == cWord))
{
//okToPutWord remains true;
}
else
{
okToPutWord = false;
break;
}
}
if (!okToPutWord)
{
return(false);
}
notYetCompletelyFilledPuzzle.PutWordAtLocationInDirection(word, location, direction);
return(true);
}
internal void PutWordAtLocationInDirection(string word, LocationOnGrid location, DirectionInGrid direction)
{
foreach (char c in word)
{
PutCharAtLocation(c, location);
location = location.AfterSoManyStepsInDirection(1, direction);
}
}
public LocationOnGrid AfterSoManyStepsInDirection(int nSteps, DirectionInGrid direction)
{
int iLoc = i;
int jLoc = j;
int iNext = 0;
int jNext = 0;
switch (direction.Direction)
{
case 1:
iNext = iLoc;
jNext = jLoc + nSteps;
break;
case 2:
iNext = iLoc - nSteps;
jNext = jLoc + nSteps;
break;
case 3:
iNext = iLoc - nSteps;
jNext = jLoc;
break;
case 4:
iNext = iLoc - nSteps;
jNext = jLoc - nSteps;
break;
case 5:
iNext = iLoc;
jNext = jLoc - nSteps;
break;
case 6:
iNext = iLoc + nSteps;
jNext = jLoc - nSteps;
break;
case 7:
iNext = iLoc + nSteps;
jNext = jLoc;
break;
case 8:
iNext = iLoc + nSteps;
jNext = jLoc + nSteps;
break;
default:
throw new Exception($"Unknown direction number {direction}");
}
var newLocation = new LocationOnGrid(iNext, jNext);
return(newLocation);
}
public LocationOnGrid GetNextLocationInDirection(LocationOnGrid location)
{
int iLoc = location.i;
int jLoc = location.j;
int iNext;
int jNext;
switch (Direction)
{
case 1:
iNext = iLoc;
jNext = jLoc++;
break;
case 2:
iNext = iLoc--;
jNext = jLoc++;
break;
case 3:
iNext = iLoc--;
jNext = jLoc;
break;
case 4:
iNext = iLoc--;
jNext = jLoc--;
break;
case 5:
iNext = iLoc;
jNext = jLoc--;
break;
case 6:
iNext = iLoc++;
jNext = jLoc--;
break;
case 7:
iNext = iLoc++;
jNext = jLoc;
break;
case 8:
iNext = iLoc++;
jNext = jLoc++;
break;
default:
throw new Exception($"Unknown direction number {Direction}");
}
return(new LocationOnGrid(iNext, jNext));
}
public void PutCharAtLocation(char c, LocationOnGrid location)
{
var existingChar = CharAtLocation(location);
if (existingChar == c)
{
return;
}
if (existingChar != ' ')
{
throw new Exception($"Can not add char {c} at location ({location.i},{location.j})");
}
PuzzleGrid[location.i, location.j] = c;
}
public bool IsValidLocationInPuzzle(Puzzle puzzle, LocationOnGrid location)
{
int iMax = puzzle.iMax;
int jMax = puzzle.jMax;
if ((location.i < 0) || (location.j < 0))
{
return(false);
}
if ((location.i > iMax) || (location.j > jMax))
{
return(false);
}
return(true);
}
public string GetWordOfLengthInDirectionAtLocation(int wordLength, DirectionInGrid direction, LocationOnGrid location)
{
string wordOut = "";
for (int i = 0; i < wordLength; i++)
{
var c = CharAtLocation(location);
wordOut += c.ToString();
location = location.AfterSoManyStepsInDirection(1, direction);
}
return(wordOut);
}
public char CharAtLocation(LocationOnGrid location)
{
return(PuzzleGrid[location.i, location.j]);
}
public PuzzleSolutionWord(string word, DirectionInGrid direction, LocationOnGrid location)
{
Word = word;
Direction = direction;
Location = location;
}
private bool IsSpaceEnough(DirectionInGrid direction, LocationOnGrid location, string word, Puzzle puzzle)
{
var finalLoc = location.AfterSoManyStepsInDirection(word.Length, direction);
return(finalLoc.IsValidLocationInPuzzle(puzzle, finalLoc));
}