//check the result of a piece moving from one position to a position with another piece on it
private void CheckExchangeOfPiecesPosition(PuzzlePiece puzzlePiece, bool oldCorrectValue)
{
//piece moved from a correct to an incorrect position
if (puzzlePiecesList[puzzlePiece.puzzlePiecesIndex].GetPieceType() != rightSolutionList[puzzlePiece.puzzlePiecesIndex] &&
oldCorrectValue == true)
{
puzzlePiece.SetPieceIsInCorrectPosition(false);
puzzlePiece.ChangeToNormalSprite();
numberOfCorrectPieces--;
}
//piece moved from an incorrect to a correct position
else if (puzzlePiecesList[puzzlePiece.puzzlePiecesIndex].GetPieceType() == rightSolutionList[puzzlePiece.puzzlePiecesIndex] &&
oldCorrectValue == false)
{
puzzlePiece.SetPieceIsInCorrectPosition(true);
puzzlePiece.ChangeToLightSprite();
numberOfCorrectPieces++;
}
CheckLevelCompleted();
}