chessai

college code for ai playing chess in java
ChessBoard.java

(3452B)
      1 package chess;
      2 
      3 import chess.utils.ChessColor;
      4 import chess.utils.ChessDirection;
      5 
      6 import java.util.ArrayList;
      7 import java.util.List;
      8 
      9 /**
     10  *
     11  */
     12 public class ChessBoard extends ChessState implements Cloneable {
     13 
     14   public ChessBoard() {
     15       super();
     16       init();
     17   }
     18 
     19     public ChessBoard(ChessBoard chessBoard) {
     20         super(chessBoard);
     21     }
     22 
     23   //CHECK
     24   public void init() {
     25       set(new ChessCoordinate('a', 8), ChessPiece.BLACK_ROOK);
     26       set(new ChessCoordinate('b', 8), ChessPiece.BLACK_KNIGHT);
     27       set(new ChessCoordinate('c', 8), ChessPiece.BLACK_BISHOP);
     28       set(new ChessCoordinate('d', 8), ChessPiece.BLACK_QUEEN);
     29       set(new ChessCoordinate('e', 8), ChessPiece.BLACK_KING);
     30       set(new ChessCoordinate('f', 8), ChessPiece.BLACK_BISHOP);
     31       set(new ChessCoordinate('g', 8), ChessPiece.BLACK_KNIGHT);
     32       set(new ChessCoordinate('h', 8), ChessPiece.BLACK_ROOK);
     33 
     34       for(int i=1; i<= ChessCoordinate.MAX; i++)
     35           set(new ChessCoordinate(i,7), ChessPiece.BLACK_PAWN);
     36 
     37       set(new ChessCoordinate('a',1), ChessPiece.WHITE_ROOK);
     38       set(new ChessCoordinate('b', 1), ChessPiece.WHITE_KNIGHT);
     39       set(new ChessCoordinate('c', 1), ChessPiece.WHITE_BISHOP);
     40       set(new ChessCoordinate('d', 1), ChessPiece.WHITE_QUEEN);
     41       set(new ChessCoordinate('e', 1), ChessPiece.WHITE_KING);
     42       set(new ChessCoordinate('f', 1), ChessPiece.WHITE_BISHOP);
     43       set(new ChessCoordinate('g', 1), ChessPiece.WHITE_KNIGHT);
     44       set(new ChessCoordinate('h', 1), ChessPiece.WHITE_ROOK);
     45 
     46       for(int i=1; i<= ChessCoordinate.MAX; i++)
     47           set(new ChessCoordinate(i,2), ChessPiece.WHITE_PAWN);
     48   }
     49 
     50 
     51     public boolean move(ChessMove move) {
     52         ChessCoordinate src = move.getCoordinate();
     53         return move(src, src.getCoordinate(this, move));
     54     }
     55     //CHECK
     56   public boolean move(
     57           ChessCoordinate src,
     58           ChessDirection direction,
     59           int steps) {
     60       ChessMove move = new ChessMove(src, direction, steps);
     61       return move(src, src.getCoordinate(this, move));
     62   }
     63 
     64   //CHECK
     65   public boolean move(ChessCoordinate src, ChessCoordinate dest) {
     66       ChessRules.INSTANCE.setState(this);
     67       ChessRules.INSTANCE.setSrc(src);
     68       ChessRules.INSTANCE.setDest(dest);
     69 
     70       ChessRules.INSTANCE.validMove();
     71       ChessRules.INSTANCE.applyCaptureRule();
     72       super.move(src, dest);
     73       return true;
     74 
     75       // TODO implement all rules to not allow opponent make whatever move
     76       /*
     77       if(ChessRules.INSTANCE.validMove()) {
     78           ChessRules.INSTANCE.applyCaptureRule();
     79           super.move(src, dest);
     80           return true;
     81       } else
     82           return false;
     83       */
     84   }
     85 
     86     public List<ChessCoordinate> getPieces(ChessColor color) {
     87         List<ChessCoordinate> playerPieces = new ArrayList<ChessCoordinate>();
     88         for(int i=1; i<=ChessCoordinate.MAX; i++)
     89             for(int j=1; j<=ChessCoordinate.MAX; j++) {
     90                 ChessPiece piece = ChessPiece.find(get(new ChessCoordinate(j, i)));
     91                 if(piece.getColor() == color)
     92                     playerPieces.add(new ChessCoordinate(j,i));
     93             }
     94         return playerPieces;
     95     }
     96 
     97     //CHECK
     98   public String printState() {
     99       String result = "";
    100 
    101       for(int i=0; i< ChessCoordinate.MAX; i++) {
    102           for(int j=0; j< ChessCoordinate.MAX; j++)
    103               result += ChessPiece.find(state[i][j])+" | ";
    104           result += "\n";
    105       }
    106       return result;
    107   }
    108 }