91 lines
2.7 KiB
Java
91 lines
2.7 KiB
Java
import java.util.*;
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import javax.swing.ImageIcon;
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public class King extends Piece {
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boolean hasMoved;
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static int[] xDir = {-1, 0, 1, -1, 1, -1, 0, 1};
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static int[] yDir = {-1, -1, -1, 0, 0, 1, 1, 1};
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public King(int x, int y, String color) {
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super(x, y, color, new ImageIcon("sprites/" + color + "/king.png").getImage());
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hasMoved = false;
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}
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public Piece copy() {
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Piece newP = new King(this.pos.x, this.pos.y, this.color);
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return newP;
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}
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public ArrayList<Position> getPseudoLegalMoves(Board board) {
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ArrayList<Position> positions = new ArrayList<Position>();
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for (int i = 0; i < xDir.length; i++) {
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Position test = new Position(pos.x + xDir[i], pos.y + yDir[i]);
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if (!Board.inBounds(test)) continue;
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if (board.isOpen(test)) {
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positions.add(test);
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continue;
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}
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if (!board.getPiece(test).colorMatches(this)) {
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positions.add(test);
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}
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}
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int colorPos = this.color.equals("White") ? 7 : 0;
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boolean leftOpen = true;
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boolean rightOpen = true;
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if (!this.hasMoved && !inCheck(board,pos)){
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if(board.getPiece(7,colorPos) instanceof Rook && !Rook.class.cast(board.getPiece(7,colorPos)).hasMoved){
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ArrayList<Position> right = this.slide(board,1,0,2);
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for (Position p : new ArrayList<>(right)){
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if (inCheck(board,p)){
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rightOpen = false;
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}
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}
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if (rightOpen) {positions.add(new Position(pos.x+2,pos.y));}
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}
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if (board.getPiece(0,colorPos) instanceof Rook && !Rook.class.cast(board.getPiece(0,colorPos)).hasMoved){
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ArrayList<Position> left = this.slide(board,-1,0,2);
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for (Position p : new ArrayList<>(left)){
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if (inCheck(board,p)){
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leftOpen = false;
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}
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}
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if (leftOpen) positions.add(new Position(pos.x - 2, pos.y));
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}}
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return positions;
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}
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public ArrayList<Position> getLegalMoves(Board board) {
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ArrayList<Position> positions = getPseudoLegalMoves(board);
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for (Position p : new ArrayList<>(positions)) {
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Piece tempPiece = board.getPiece(p);
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board.setPiece(pos, null);
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board.setPiece(p, this);
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if (inCheck(board, p)) {
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positions.remove(p);
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}
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board.setPiece(p, tempPiece);
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board.setPiece(pos, this);
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}
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return positions;
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}
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public boolean inCheck(Board board, Position pos) {
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for (Piece[] pieces : board.board) {
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for (Piece p : pieces) {
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if (p == null) continue;
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if (!p.colorMatches(this) && !(p instanceof King)) {
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ArrayList<Position> ar = p.getPseudoLegalMoves(board);
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for (Position posi : ar) {
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if (pos.equals(posi)) return true;
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}
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}
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}
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}
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return false;
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}
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}
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