/**
* Plays moves to the end of the game and returns the winner: BLACK, WHITE, or (in rare event of a
* tie or a playout canceled because it hits the maximum number of moves) VACANT.
*
* @param mercy True if we should abandon the playout when one color has many more stones than the
* other.
*/
public Color playout(boolean mercy) {
do {
if (board.getTurn() >= coords.getMaxMovesPerGame()) {
// Playout ran out of moves, probably due to superko
return VACANT;
}
if (board.getPasses() < 2) {
selectAndPlayOneMove();
}
if (board.getPasses() >= 2) {
// Game ended
return scorer.winner();
}
final Color mercyWinner = mercyObserver.mercyWinner();
if (mercy && mercyWinner != null) {
// One player has far more stones on the board
return mercyWinner;
}
} while (true);
}
/** Copies data from that (the player's real board) to the local board. */
public void copyDataFrom(Board that) {
board.copyDataFrom(that);
fancyHashes[board.getTurn()] = board.getFancyHash();
}
/** Returns the current turn number on this runnable's board. */
public int getTurn() {
return board.getTurn();
}
/**
* Accepts (plays on on this McRunnable's own board) the given move.
*
* @see edu.lclark.orego.core.Board#play(short)
*/
public void acceptMove(short p) {
final Legality legality = board.play(p);
assert legality == OK
: "Legality " + legality + " for move " + coords.toString(p) + "\n" + board;
fancyHashes[board.getTurn()] = board.getFancyHash();
}