public Board(int numPlayers) {
this.numPlayers = numPlayers;
this.sectionWidth = GameUtil.computeSectionWidth(this.numPlayers);
boardRows = new HashMap<Integer, Square[]>();
playerPieces = new Piece[numPlayers];
for (int i = 0; i < playerPieces.length; i++) {
playerPieces[i] = PieceFactory.generateNewPiece(i, sectionWidth);
}
playerUpcomingPieces = new ArrayList<Queue<Piece>>(numPlayers);
for (int i = 0; i < numPlayers; i++) {
Queue<Piece> nextQueue = new LinkedList<Piece>();
for (int j = 0; j < PIECE_QUEUE_SIZE; j++) {
nextQueue.add(PieceFactory.generateNewPiece(i, sectionWidth));
}
playerUpcomingPieces.add(nextQueue);
}
checkRep();
}
/**
* Adds the given player's current falling piece to the squares that are already fixed at the
* bottom of the board (private utility function; call when appropriate).
*/
private synchronized void addToSetSquares(int player) {
if (playerPieces[player] != null) {
// Adds the given player's current piece into the pieces
// that are no longer moving (hit the bottom).
for (Square square : playerPieces[player].squares) {
Square[] row = boardRows.get(square.y);
if (row == null) {
boardRows.put(square.y, new Square[GameUtil.BOARD_WIDTH]);
}
boardRows.get(square.y)[GameUtil.modulo(square.x, GameUtil.BOARD_WIDTH)] = square;
}
/*
* Update the current player's falling piece by getting it from the
* next piece in that player's queue. Then, generate a new piece and
* add that to the queue.
*/
playerPieces[player] = playerUpcomingPieces.get(player).remove();
playerUpcomingPieces.get(player).add(PieceFactory.generateNewPiece(player, sectionWidth));
}
}