/// <summary> Flags positions that belong to a match </summary>
/// <param name="shouldFlag"> if false, elements wont be marked as matched (usefull when want to check possible matches)</param>
/// <returns>returns an array where:
/// position 0: number of matches that create a cross
/// position 1: number of matches create a bomb
/// position 2: number of matches create a bell</returns>
public static int CheckElementForMatches(int startCollum, int startRow, BoardElement[, ] positions, ref bool[, ] matchedElemPositions, int collumsNumber, int rowsNumber, bool shouldFlag = true)
{
int upperMatches = BoardFunctions.CheckUpperNeighboursForMatches(startCollum, startRow, positions);
int bottomMatches = BoardFunctions.CheckBottomNeighboursForMatches(startCollum, startRow, positions, rowsNumber);
int leftMatches = BoardFunctions.CheckLeftNeighboursForMatches(startCollum, startRow, positions);
int rightMatches = BoardFunctions.CheckRightNeighboursForMatches(startCollum, startRow, positions, collumsNumber);
if (shouldFlag)
{
// if more than 2 element matches, add vertical mathced elements
if (upperMatches + bottomMatches >= 2)
{
matchedElemPositions[startCollum, startRow] = true;
for (int row = startRow - upperMatches; row <= startRow + bottomMatches; row++)
{
matchedElemPositions[startCollum, row] = true;
// AlexDebugger.GetInstance().AddMessage(positions[startCollum, row].GetAttachedGameObject().name + "is an " + ((row < startRow) ? " on top" : "on bottom") + " match of " + positions[startCollum, row].GetAttachedGameObject().name, AlexDebugger.tags.Matches);
}
if (upperMatches > 0)
{
//AlexDebugger.GetInstance().AddMessage("Upper matches for element: " + GetTransformByIndex(positions[startCollum, startRow].GetTransformIndex()) + " are: " + upperMatches, AlexDebugger.tags.Matches);
}
if (bottomMatches > 0)
{
//AlexDebugger.GetInstance().AddMessage("Bottom matches for element: " + GetTransformByIndex(positions[startCollum, startRow].GetTransformIndex()) + " are: " + bottomMatches, AlexDebugger.tags.Matches);
}
}
// if more than 2 element matches, add horizontal mathced elements
if (leftMatches + rightMatches >= 2)
{
matchedElemPositions[startCollum, startRow] = true;
for (int collum = startCollum - leftMatches; collum <= startCollum + rightMatches; collum++)
{
matchedElemPositions[collum, startRow] = true;
}
if (leftMatches > 0)
{
//AlexDebugger.GetInstance().AddMessage("Left matches for element: " + GetTransformByIndex(positions[startCollum, startRow].GetTransformIndex()) + " are: " + leftMatches, AlexDebugger.tags.Matches);
}
if (rightMatches > 0)
{
//AlexDebugger.GetInstance().AddMessage("Bottom matches for element: " + GetTransformByIndex(positions[startCollum, startRow].GetTransformIndex()) + " are: " + rightMatches, AlexDebugger.tags.Matches);
}
}
if (upperMatches + bottomMatches >= 2 || leftMatches + rightMatches >= 2)
{
//AlexDebugger.GetInstance().AddMessage("Total matches found for: " + GetTransformByIndex(positions[startCollum, startRow].GetTransformIndex()) + " are: " + (upperMatches + bottomMatches + leftMatches + rightMatches).ToString(), AlexDebugger.tags.Matches);
}
}
if (upperMatches + bottomMatches >= 2 || leftMatches + rightMatches >= 2)
{
return(upperMatches + bottomMatches + leftMatches + rightMatches);
}
else
{
return(0);
}
}
/// <summary> Returns the number of elements matched towards left </summary>
public static int CheckLeftNeighboursForMatches(int collum, int row, BoardElement[, ] positions)
{
int numberOfElem = 0;
if (collum - 1 > -1)
{
if (positions[collum - 1, row].GetElementClassType() != typeof(BoardElement) && positions[collum - 1, row].GetElementClassType() != typeof(CrossBoardElement))
{
return(0);
}
if (positions[collum, row].GetElementValue() == positions[collum - 1, row].GetElementValue())
{
numberOfElem++;
numberOfElem += BoardFunctions.CheckLeftNeighboursForMatches(collum - 1, row, positions);
}
}
return(numberOfElem);
}