Version 0.4
Now plays with a grandpa minmax. It is much better, though not excellent ;)
This commit is contained in:
@ -33,13 +33,18 @@ public class SuicideChess {
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/**
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* The name to be displayed
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*/
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public static final String NAME = "djib's SuicideChess v0.3 beta 2";
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public static final String NAME = "djib's SuicideChess v0.4.1";
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/**
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* Displays informations in the console.
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*/
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public static final boolean ASCII_GAME = false;
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/**
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* Number of Plies the computes searches to
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*/
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public static final int PLY_DEPTH = 5;
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/**
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* The color of the current player
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*/
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@ -60,167 +65,200 @@ public class SuicideChess {
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}
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}
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/**
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* If feature usermove has not been accepted by XBoard then consider all unknown commands
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* as moves
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*/
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private static boolean acceptedUsermove = false;
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/**
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* The main function
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* @param args No parameters should be transmitted to this function.
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* @throws NotAValidSquare
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*/
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public static void main(String[] args) {
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public static void main(String[] args) throws NotAValidSquare {
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System.out.println("Welcome to SuicideChess "+SuicideChess.NAME+"!");
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if (!SuicideChess.ASCII_GAME) {
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System.out.println("This game was not designed to be played in console. Please use it with XBoard, WinBoard or any compatible program.");
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}
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System.out.println();
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BufferedReader moveInput = new BufferedReader(new InputStreamReader(System.in));
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Board bitboard = new Board();
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if (ASCII_GAME) {
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bitboard.display();
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System.out.println("White: ");
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}
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ComputerPlayer computer = new ComputerPlayer();
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boolean computerPlaying = true; //the computer does not play in foce mode.
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boolean playing = true;
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while (playing) {
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try {
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String whatMove= moveInput.readLine();
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boolean playedALegalMove = false;
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try {
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BufferedReader moveInput = new BufferedReader(new InputStreamReader(System.in));
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Board bitboard = new Board();
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if (ASCII_GAME) {
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bitboard.display();
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System.out.println("White: ");
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}
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ComputerPlayer computer = new ComputerPlayer();
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boolean playing = true;
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while (playing) {
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try {
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String whatMove= moveInput.readLine();
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boolean playedALegalMove = false;
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int xBoardCommand = XBoardProtocol.getCommand(whatMove);
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switch (xBoardCommand) {
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case XBoardProtocol.XBOARD:
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break;
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case XBoardProtocol.PROTOVER:
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XBoardProtocol.initialise();
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break;
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case XBoardProtocol.NOT_ACCEPTED_SUICIDE:
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System.out.println("tellusererror \"This game only plays suicide chess.\"");
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playing=false;
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break;
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case XBoardProtocol.NOT_ACCEPTED_USERMOVE:
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System.out.println("tellusererror \"XBoard must send moves starting with 'usermove'\"");
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playing=false;
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break;
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case XBoardProtocol.NOPROTOVER:
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System.out.println("tellusererror \"You must use an engine with XBoard protocol 2 or higher.\"");
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playing=false;
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break;
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case XBoardProtocol.QUIT:
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System.out.println("Goodbye!");
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playing=false;
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break;
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case XBoardProtocol.NEW:
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System.out.println("variant suicide");
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break;
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case XBoardProtocol.UNKNOWN:
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int xBoardCommand = XBoardProtocol.getCommand(whatMove);
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switch (xBoardCommand) {
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case XBoardProtocol.XBOARD:
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break;
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case XBoardProtocol.PROTOVER:
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XBoardProtocol.initialise();
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break;
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case XBoardProtocol.NOT_ACCEPTED_SUICIDE:
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System.out.println("tellusererror \"This game only plays suicide chess.\"");
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playing=false;
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break;
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case XBoardProtocol.ACCEPTED_USERMOVE:
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acceptedUsermove=true;
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break;
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case XBoardProtocol.NOPROTOVER:
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System.out.println("tellusererror \"You must use an engine with XBoard protocol 2 or higher.\"");
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playing=false;
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break;
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case XBoardProtocol.QUIT:
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System.out.println("Goodbye!");
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playing=false;
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break;
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case XBoardProtocol.NEW:
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System.out.println("variant suicide");
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break;
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case XBoardProtocol.HINT:
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System.out.println("Hint: "+computer.doRandomMove(bitboard,currentPlayerColor));
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break;
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case XBoardProtocol.FORCE:
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computerPlaying = false;
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break;
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case XBoardProtocol.UNKNOWN:
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if (acceptedUsermove) {
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System.out.println("Error (unknown command): "+whatMove);
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break;
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case XBoardProtocol.MOVE:
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Move theMove = new Move(whatMove.substring(9), bitboard);
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boolean needToCapture = false;
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int foundMoveIndex = -1;
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if(theMove.getMovingPiece().getColor() == currentPlayerColor) {
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Rules.legalMovesForPlayer(bitboard,currentPlayerColor);
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ArrayList<Move> allLegalMoves = Rules.getLegalMovesCapture();
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if (allLegalMoves.size()==0) {
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allLegalMoves = Rules.getLegalMovesNonCapture();
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} else {
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needToCapture = true;
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}
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for (int moveIndex = 0; moveIndex < allLegalMoves.size(); moveIndex++) {
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if (allLegalMoves.get(moveIndex).isSimpleEqual(theMove)) {
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if(theMove.isPromotionMove()&&
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theMove.getPromotionPiece().getPieceNumber()!=allLegalMoves.get(moveIndex).getPromotionPiece().getPieceNumber()) {
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continue;
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}
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foundMoveIndex=moveIndex;
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break;
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}
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}
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if (foundMoveIndex == -1) {
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if (needToCapture) {
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if (ASCII_GAME)
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System.out.println("Capturing is mandatory.");
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}
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System.out.println("Illegal move: "+theMove.toString());
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} else {
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bitboard.doMove(allLegalMoves.get(foundMoveIndex));
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if (ASCII_GAME) {
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allLegalMoves.get(foundMoveIndex).display();
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bitboard.display();
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}
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playedALegalMove=true;
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}
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}
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//if XBoard did not accept usermove command we try and interpret every unknown command
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//as a move.
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case XBoardProtocol.MOVE:
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Move theMove;
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if (acceptedUsermove) {
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theMove = new Move(whatMove.substring(9), bitboard);
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} else {
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theMove = new Move(whatMove, bitboard);
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}
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boolean needToCapture = false;
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int foundMoveIndex = -1;
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if(theMove.getMovingPiece().getColor() == currentPlayerColor) {
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Rules.legalMovesForPlayer(bitboard,currentPlayerColor);
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ArrayList<Move> allLegalMoves = Rules.getLegalMovesCapture();
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if (allLegalMoves.size()==0) {
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allLegalMoves = Rules.getLegalMovesNonCapture();
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} else {
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if (ASCII_GAME)
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System.out.println("Please play a piece of the right color.");
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needToCapture = true;
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}
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for (int moveIndex = 0; moveIndex < allLegalMoves.size(); moveIndex++) {
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if (allLegalMoves.get(moveIndex).isSimpleEqual(theMove)) {
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if(theMove.isPromotionMove()&&
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theMove.getPromotionPiece().getPieceNumber()!=allLegalMoves.get(moveIndex).getPromotionPiece().getPieceNumber()) {
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continue;
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}
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foundMoveIndex=moveIndex;
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break;
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}
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}
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if (foundMoveIndex == -1) {
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if (needToCapture) {
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if (ASCII_GAME)
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System.out.println("Capturing is mandatory.");
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}
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System.out.println("Illegal move: "+theMove.toString());
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} else {
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bitboard.doMove(allLegalMoves.get(foundMoveIndex));
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if (ASCII_GAME) {
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allLegalMoves.get(foundMoveIndex).display();
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System.out.println("Board value: "+bitboard.getBoardValue());
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bitboard.display();
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}
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playedALegalMove=true;
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}
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if (!playedALegalMove) {
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break;
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}
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changeCurrentPlayerColor();
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//No break statement here on purpose.
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case XBoardProtocol.GO:
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Move computerMove = computer.doMove(bitboard,currentPlayerColor);
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} else {
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if (ASCII_GAME)
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System.out.println("Please play a piece of the right color.");
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System.out.println("Illegal move: "+theMove.toString());
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}
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if (!playedALegalMove) {
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break;
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}
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changeCurrentPlayerColor();
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//No break statement here on purpose.
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case XBoardProtocol.GO:
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//this is not really nice but it avoids having to write twice the code
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//I check if I did really receive a XBoardProtocol.GO or it I just got there
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//because there is no break statement.
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if (xBoardCommand==XBoardProtocol.GO)
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computerPlaying = true;
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if (computerPlaying) {
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Move computerMove = computer.doMinMaxMove(bitboard,currentPlayerColor);
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bitboard.doMove(computerMove);
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XBoardProtocol.doMove(computerMove);
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if (ASCII_GAME) {
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computerMove.display();
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System.out.println("Board value: "+bitboard.getBoardValue());
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bitboard.display();
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}
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changeCurrentPlayerColor();
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break;
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}
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// if (whatMove.startsWith("hint")) {
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// Rules rules = new Rules();
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// rules.legalMovesForPlayer(bitboard,currentPlayerColor);
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// ArrayList<Move> allLegalMoves = rules.getLegalMovesCapture();
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// if (allLegalMoves.size()==0) {
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// allLegalMoves = rules.getLegalMovesNonCapture();
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// }
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// for(int i = 0; i<allLegalMoves.size(); i++) {
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// if(allLegalMoves.get(i).isPromotionMove()) {
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// System.out.println(allLegalMoves.get(i).fromSquare().toString() +
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// allLegalMoves.get(i).toSquare().toString() +
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// allLegalMoves.get(i).getPromotionPiece().toString());
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// } else {
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// System.out.println(allLegalMoves.get(i).fromSquare().toString() +
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// allLegalMoves.get(i).toSquare().toString());
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// }
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//
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// }
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// continue;
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// }
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// if (whatMove.startsWith("force")) {
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// Move theMove = new Move(whatMove.substring(6,10), bitboard);
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// theMove.display();
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// bitboard.doMove(theMove);
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// bitboard.display();
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// continue;
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// }
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} catch (NotAValidMoveException err) {
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System.out.println(err);
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continue;
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} catch (NotAValidSquare err) {
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System.out.println(err);
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continue;
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} catch (Exception err) {
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System.out.println(err);
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}
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break;
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}
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// if (whatMove.startsWith("hint")) {
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// Rules rules = new Rules();
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// rules.legalMovesForPlayer(bitboard,currentPlayerColor);
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// ArrayList<Move> allLegalMoves = rules.getLegalMovesCapture();
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// if (allLegalMoves.size()==0) {
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// allLegalMoves = rules.getLegalMovesNonCapture();
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// }
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// for(int i = 0; i<allLegalMoves.size(); i++) {
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// if(allLegalMoves.get(i).isPromotionMove()) {
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// System.out.println(allLegalMoves.get(i).fromSquare().toString() +
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// allLegalMoves.get(i).toSquare().toString() +
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// allLegalMoves.get(i).getPromotionPiece().toString());
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// } else {
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// System.out.println(allLegalMoves.get(i).fromSquare().toString() +
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// allLegalMoves.get(i).toSquare().toString());
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// }
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//
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// }
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// continue;
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// }
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// if (whatMove.startsWith("force")) {
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// Move theMove = new Move(whatMove.substring(6,10), bitboard);
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// theMove.display();
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// bitboard.doMove(theMove);
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// bitboard.display();
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// continue;
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// }
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} catch (NotAValidMoveException err) {
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System.out.println(err);
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continue;
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} catch (NotAValidSquare err) {
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System.out.println(err);
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continue;
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} catch (Exception err) {
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System.out.println(err);
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break;
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}
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} catch (NotAValidSquare e) {
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e.printStackTrace();
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}
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}
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