// applying move, returning whether a capture move happend
private eAction applyMove(Move? i_Move)
{
eAction nextAction = eAction.Continue;
m_LastMovingPiece = getPieceByPosition(m_CurrPlayerTurn, i_Move.Value.Source);
Position capturedPiecePosition;
// check if move is a capture move, output parameter get the captured piece position
if (captureMove(m_LastMovingPiece, i_Move.Value.Destination, out capturedPiecePosition))
{
PlayerInfo enemyPlayer = this.enemyPlayer(m_CurrPlayerTurn);
removePieceFromPosition(enemyPlayer, capturedPiecePosition);
nextAction = eAction.Capture;
}
// updating movement
m_LastMovingPiece.MovePiece(i_Move.Value.Destination, m_CheckersBoard);
return nextAction;
}
public void PlayRound(Move i_MoveToApply)
{
if (isMoveValid(i_MoveToApply))
{
const bool v_OnlyCaptureMoves = true;
eAction lastAction = applyMove(i_MoveToApply);
r_CurrentlyLegalMoves.Clear();
m_LastMovingPiece.AddLegalMovesToList(r_CurrentlyLegalMoves, m_CheckersBoard, v_OnlyCaptureMoves);
if (lastAction == eAction.Capture && r_CurrentlyLegalMoves.Any())
{
// the player keeping the turn, but we update that it will not be the first move, as in series of capture moves
m_FirstMoveThisTurn = false;
}
else
{
// turn goes to the next player
m_CurrPlayerTurn = enemyPlayer(m_CurrPlayerTurn);
m_FirstMoveThisTurn = true;
if (!m_CurrPlayerTurn.Human)
{
makeMachineMove();
}
}
if(gameOver())
{
handleGameOver();
}
}
else
{
OnInvalidMoveGiven(new EventArgs()); // show prompt dialog "Move is not Valid"
}
}
private bool isMoveValid(Move i_MoveToCheck)
{
const bool v_OnlyCaptureMoves = true;
if(!m_FirstMoveThisTurn)
{ // in middle of a series of captures moves
r_CurrentlyLegalMoves.Clear();
m_LastMovingPiece.AddLegalMovesToList(r_CurrentlyLegalMoves, m_CheckersBoard, v_OnlyCaptureMoves);
}
else
{
fillLegalMovesList(m_CurrPlayerTurn, v_OnlyCaptureMoves); // Try to find only capture moves
if (!r_CurrentlyLegalMoves.Any())
{
fillLegalMovesList(m_CurrPlayerTurn, !v_OnlyCaptureMoves); // get all possible moves
}
}
return r_CurrentlyLegalMoves.Contains(i_MoveToCheck);
}
// Goes over possible moves of a piece and adds it into the list if it's a valid move for this part of the round
public void AddLegalMovesToList(
LinkedList<Move> i_LegalMovesList,
CheckersGameBoard i_CheckersGameBoard,
bool i_OnlyCaptureMoves)
{
int maxIndexOfPossibleMove = m_King ? k_KingNumberOfPossibleMoves : k_ManNumberOfPossibleMoves;
Position newPossiblePosition;
bool captureMove;
for (int i = 0; i < maxIndexOfPossibleMove; ++i)
{
newPossiblePosition = CurrPosition.AddPosition(r_PossibleMoves[i]);
if (isMoveValid(newPossiblePosition, i_CheckersGameBoard, out captureMove)
&& ((i_OnlyCaptureMoves && captureMove) || !i_OnlyCaptureMoves))
{
// Create a linkedList node and add it to the legal moves list - Source: currPosition, Dst: newLegalPosition
Move tempMove = new Move(m_CurrPosition, newPossiblePosition);
LinkedListNode<Move> tempNode = new LinkedListNode<Move>(tempMove);
// If we only need capture moves and it's a capture move; or if we don't nessecarily need a capture move - add to list:
i_LegalMovesList.AddLast(tempNode);
}
}
}
