compiled

.gitignore

@@ -1 +0,0 @@
-*.class

Bishop.java

@@ -1,29 +0,0 @@
-import java.util.*;
-import javax.swing.ImageIcon;
-
-public class Bishop extends Piece {
-
-  public Bishop(int x, int y, String color) {
-    super(x, y, color, new ImageIcon("sprites/" + color + "/bishop.png").getImage());
-  }
-
-  public Piece copy() {
-    Piece newP = new Bishop(this.pos.x, this.pos.y, this.color);
-    return newP;
-  }
-
-  public ArrayList<Position> getPseudoLegalMoves(Board board) {
-    ArrayList<Position> positions = new ArrayList<Position>();
-
-    positions.addAll(slide(board, -1, -1, 7));
-    positions.addAll(slide(board, 1, -1, 7));
-    positions.addAll(slide(board, -1, 1, 7));
-    positions.addAll(slide(board, 1, 1, 7));
-
-    return positions;
-  }
-
-  public ArrayList<Position> getLegalMoves(Board board) {
-    return getPseudoLegalMoves(board);
-  }
-}

Board.java

@@ -6,56 +6,10 @@ public class Board {
   public Board() {
     board = new Piece[8][8];
     for (int i = 0; i <= 7; i++) {
-      board[i][1] = new Pawn(i, 1, "Black");
-      board[i][6] = new Pawn(i, 6, "White");
+      board[i][2] = new Pawn(i + 1, 2, "Black");
     }
-    for (int i = 0; i <= 7; i += 7) {
-      String color = i == 0 ? "Black" : "White";
-      board[0][i] = new Rook(0, i, color);
-      board[7][i] = new Rook(7, i, color);
-      board[1][i] = new Knight(1, i, color);
-      board[6][i] = new Knight(6, i, color);
-      board[2][i] = new Bishop(2, i, color);
-      board[5][i] = new Bishop(5, i, color);
-      board[4][i] = new King(4, i, color);
-      board[3][i] = new Queen(3, i, color);
-    }
-  }
-
-  public Board(boolean isCopy) {
-    board = new Piece[8][8];
-  }
-
-  public void capture(Piece capturing, Piece captured) {
-    board[capturing.pos.x][capturing.pos.y] = null;
-    board[captured.pos.x][captured.pos.y] = capturing;
-    capturing.pos.x = captured.pos.x;
-    capturing.pos.y = captured.pos.y;
-  }
-
-  public void move(Piece p, Position posi) {
-    board[p.pos.x][p.pos.y] = null;
-    board[posi.x][posi.y] = p;
-    p.pos = posi;
-    if (p instanceof Pawn) {
-      ((Pawn) p).hasMoved = true;
-    }
-    if (p instanceof King) {
-      ((King) p).hasMoved = true;
-    }
-    if (p instanceof Rook) {
-      ((Rook) p).hasMoved = true;
-    }
-  }
-
-  public void castle(King king, boolean kingSide) {
-    int row = king.pos.y;
-    if (kingSide) {
-      move(king, new Position(6, row));
-      move(board[7][row], new Position(5, row));
-    } else {
-      move(king, new Position(2, row));
-      move(board[0][row], new Position(3, row));
+    for (int i = 0; i <= 7; i++) {
+      board[i][7] = new Pawn(i + 1, 7, "White");
     }
   }
 
@@ -72,42 +26,6 @@ public class Board {
   }
 
   public boolean isOpen(Position pos) {
-    return this.getPiece(pos) == null;
-  }
-
-  public Piece getPiece(Position pos) {
-    if (inBounds(pos)) {
-      return this.board[pos.x][pos.y];
-    }
-    return null;
-  }
-
-  public Piece getPiece(int x, int y) {
-    if (inBounds(new Position(x, y))) {
-      return this.board[x][y];
-    }
-    return null;
-  }
-
-  public void setPiece(int x, int y, Piece p) {
-    this.board[x][y] = p;
-  }
-
-  public void setPiece(Position pos, Piece p) {
-    this.board[pos.x][pos.y] = p;
-  }
-
-  public static Board copy(Board b) {
-    Board newBoard = new Board();
-
-    for (int i = 0; i <= 7; i++) {
-      for (int j = 0; j <= 7; j++) {
-        Piece p = b.getPiece(i, j);
-        if (p == null) continue;
-        newBoard.board[i][j] = p.copy();
-      }
-    }
-
-    return newBoard;
+    return this.board[pos.x][pos.y] == null;
   }
 }

Chess.java

@@ -1,23 +1,19 @@
 import java.awt.*;
 import java.awt.Color;
 import java.awt.event.*;
-import java.util.ArrayList;
 import javax.swing.*;
 
-public class Chess extends JPanel implements ActionListener, MouseListener {
+public class Chess extends JPanel implements ActionListener {
 
   // pieces stuff
   Board board;
 
   // game vars
   int boardWidth, boardHeight;
+  boolean whiteTurn;
   Timer gameTimer;
   Color creme = new Color(254, 245, 218);
   Color brown = new Color(121, 92, 50);
-  Piece selected;
-  ArrayList<Position> legalMoves;
-  Image hover;
-  String turnColor;
 
   public Chess(int boardWidth, int boardHeight) {
     this.boardWidth = boardWidth;
@@ -25,15 +21,10 @@ public class Chess extends JPanel implements ActionListener, MouseListener {
     setPreferredSize(new Dimension(this.boardWidth, this.boardHeight));
     setBackground(Color.WHITE);
     setFocusable(true);
-    addMouseListener(this);
 
     board = new Board();
-    selected = null;
-    legalMoves = null;
-    turnColor = "White";
-    gameTimer = new Timer(200, this);
 
-    hover = new ImageIcon("sprites/hover.png").getImage();
+    gameTimer = new Timer(200, this);
 
     gameTimer.start();
     repaint();
@@ -53,13 +44,6 @@ public class Chess extends JPanel implements ActionListener, MouseListener {
 
     // draw pieces
     board.draw(g);
-
-    // draw legalMoves
-    if (legalMoves != null) {
-      for (Position p : legalMoves) {
-        g.drawImage(hover, (p.x + 1) * 40, (p.y + 1) * 40, null);
-      }
-    }
   }
 
   public void paintComponent(Graphics g) {
@@ -71,47 +55,4 @@ public class Chess extends JPanel implements ActionListener, MouseListener {
     gameLoop();
     repaint();
   }
-
-  public void mouseEntered(MouseEvent e) {}
-
-  public void mousePressed(MouseEvent e) {}
-
-  public void mouseReleased(MouseEvent e) {}
-
-  public void mouseClicked(MouseEvent e) {
-    int col = (e.getX() / 40) - 1;
-    int row = (e.getY() / 40) - 1;
-    Position pos = new Position(col, row);
-    Piece newSelected = board.getPiece(col, row);
-    // if selecting one of our own pieces
-    if (newSelected != null && newSelected.color.equals(turnColor)) {
-      legalMoves = newSelected.getLegalMoves(board);
-      selected = newSelected;
-      return;
-    }
-    // if selecting an enemy piece -- must have one of ours selected
-    else if (newSelected != null
-        && selected != null
-        && selected.color.equals(turnColor)
-        && !newSelected.color.equals(turnColor)
-        && legalMoves.contains(pos)) {
-      board.capture(selected, newSelected);
-      selected = null;
-      legalMoves = null;
-      turnColor = turnColor.equals("White") ? "Black" : "White";
-    }
-    // if selecting a blank square -- must have one of ours selected
-    else if (selected != null && selected.color.equals(turnColor) && legalMoves.contains(pos)) {
-      if (selected instanceof King && Math.abs(pos.x - selected.pos.x) == 2) {
-        board.castle((King) selected, pos.x > selected.pos.x);
-      } else {
-        board.move(selected, pos);
-      }
-      selected = null;
-      legalMoves = null;
-      turnColor = turnColor.equals("White") ? "Black" : "White";
-    }
-  }
-
-  public void mouseExited(MouseEvent e) {}
 }

King.java

@@ -1,90 +0,0 @@
-import java.util.*;
-import javax.swing.ImageIcon;
-
-public class King extends Piece {
-  boolean hasMoved;
-  static int[] xDir = {-1, 0, 1, -1, 1, -1, 0, 1};
-  static int[] yDir = {-1, -1, -1, 0, 0, 1, 1, 1};
-
-  public King(int x, int y, String color) {
-    super(x, y, color, new ImageIcon("sprites/" + color + "/king.png").getImage());
-    hasMoved = false;
-  }
-
-  public Piece copy() {
-    Piece newP = new King(this.pos.x, this.pos.y, this.color);
-    return newP;
-  }
-
-  public ArrayList<Position> getPseudoLegalMoves(Board board) {
-    ArrayList<Position> positions = new ArrayList<Position>();
-
-    for (int i = 0; i < xDir.length; i++) {
-      Position test = new Position(pos.x + xDir[i], pos.y + yDir[i]);
-      if (!Board.inBounds(test)) continue;
-      if (board.isOpen(test)) {
-        positions.add(test);
-        continue;
-      }
-      if (!board.getPiece(test).colorMatches(this)) {
-        positions.add(test);
-      }
-    }
-      int colorPos = this.color.equals("White") ? 7 : 0;
-      boolean leftOpen = true;
-      boolean rightOpen = true;
-      if (!this.hasMoved && !inCheck(board,pos)){
-        if(board.getPiece(7,colorPos) instanceof Rook && !Rook.class.cast(board.getPiece(7,colorPos)).hasMoved){
-        ArrayList<Position> right = this.slide(board,1,0,2);
-
-        for (Position p : new ArrayList<>(right)){
-          if (inCheck(board,p)){
-            rightOpen = false;
-          }
-        }
-        if (rightOpen) {positions.add(new Position(pos.x+2,pos.y));}
-        }
-        if (board.getPiece(0,colorPos) instanceof Rook && !Rook.class.cast(board.getPiece(0,colorPos)).hasMoved){
-
-          ArrayList<Position> left = this.slide(board,-1,0,2);
-        for (Position p : new ArrayList<>(left)){
-          if (inCheck(board,p)){
-            leftOpen = false;
-          }
-        }
- if (leftOpen) positions.add(new Position(pos.x - 2, pos.y));
-      }}
-
-    return positions;
-  }
-
-  public ArrayList<Position> getLegalMoves(Board board) {
-    ArrayList<Position> positions = getPseudoLegalMoves(board);
-    for (Position p : new ArrayList<>(positions)) {
-      Piece tempPiece = board.getPiece(p);
-      board.setPiece(pos, null);
-      board.setPiece(p, this);
-      if (inCheck(board, p)) {
-        positions.remove(p);
-      }
-      board.setPiece(p, tempPiece);
-      board.setPiece(pos, this);
-    }
-    return positions;
-  }
-
-  public boolean inCheck(Board board, Position pos) {
-    for (Piece[] pieces : board.board) {
-      for (Piece p : pieces) {
-        if (p == null) continue;
-        if (!p.colorMatches(this) && !(p instanceof King)) {
-          ArrayList<Position> ar = p.getPseudoLegalMoves(board);
-          for (Position posi : ar) {
-            if (pos.equals(posi)) return true;
-          }
-        }
-      }
-    }
-    return false;
-  }
-}

Knight.java

@@ -9,30 +9,16 @@ public class Knight extends Piece {
     super(x, y, color, new ImageIcon("sprites/" + color + "/knight.png").getImage());
   }
 
-  public Piece copy() {
-    Piece newP = new Knight(this.pos.x, this.pos.y, this.color);
-    return newP;
-  }
-
-  public ArrayList<Position> getPseudoLegalMoves(Board board) {
+  public ArrayList<Position> getLegalMoves(Board board) {
     ArrayList<Position> positions = new ArrayList<Position>();
 
-    for (int i = 0; i < xDir.length; i++) {
-      Position test = new Position(pos.x + xDir[i], pos.y + yDir[i]);
+    for (int i : xDir) {
+      for (int j : yDir) {
+        Position test = new Position(pos.x + i, pos.y + j);
         if (!Board.inBounds(test)) continue;
-      if (board.isOpen(test)) {
-        positions.add(test);
-        continue;
-      }
-      if (!board.getPiece(test).colorMatches(this)) {
-        positions.add(test);
       }
     }
 
     return positions;
   }
-
-  public ArrayList<Position> getLegalMoves(Board board) {
-    return getPseudoLegalMoves(board);
-  }
 }

Pawn.java

@@ -11,40 +11,30 @@ public class Pawn extends Piece {
     colorDir = color.equals("White") ? -1 : 1;
   }
 
-  public Piece copy() {
-    Piece newP = new Pawn(this.pos.x, this.pos.y, this.color);
-    return newP;
-  }
-
-  public ArrayList<Position> getPseudoLegalMoves(Board board) {
+  public ArrayList<Position> getLegalMoves(Board board) {
     ArrayList<Position> positions = new ArrayList<Position>();
-
     // diagonal moves (captures)
-    Position test = new Position(pos.x + 1, pos.y + colorDir);
-    if (Board.inBounds(test) && !board.isOpen(test) && !board.getPiece(test).colorMatches(this)) {
-      positions.add(test);
+    if (Board.inBounds(new Position(pos.x + 1, pos.y + colorDir))
+        && !board.isOpen(new Position(pos.x + 1, pos.y + colorDir))
+        && !board.board[pos.x + 1][pos.y + colorDir].color.equals(this.color)) {
+      positions.add(new Position(pos.x + 1, pos.y + colorDir));
     }
-
-    test = new Position(pos.x - 1, pos.y + colorDir);
-    if (Board.inBounds(test) && !board.isOpen(test) && !board.getPiece(test).colorMatches(this)) {
-      positions.add(test);
+    if (Board.inBounds(new Position(pos.x - 1, pos.y + colorDir))
+        && !board.isOpen(new Position(pos.x - 1, pos.y + colorDir))
+        && !board.board[pos.x - 1][pos.y + colorDir].color.equals(this.color)) {
+      positions.add(new Position(pos.x - 1, pos.y + colorDir));
     }
 
     // one square in front: if blocked return early
-    test = new Position(pos.x, pos.y + colorDir);
-    if (Board.inBounds(test) && board.isOpen(test)) {
-      positions.add(test);
+    if (Board.inBounds(new Position(pos.x, pos.y + colorDir))
+        && board.isOpen(new Position(pos.x, pos.y + colorDir))) {
+      positions.add(new Position(pos.x, pos.y + colorDir));
     } else return positions;
 
     // two squares in front
-    test = new Position(pos.x, pos.y + 2 * colorDir);
-    if (!hasMoved && board.isOpen(test)) {
-      positions.add(test);
+    if (!hasMoved && board.isOpen(new Position(pos.x, pos.y + 2 * colorDir))) {
+      positions.add(new Position(pos.x, pos.y + 2 * colorDir));
     }
     return positions;
   }
-
-  public ArrayList<Position> getLegalMoves(Board board) {
-    return getPseudoLegalMoves(board);
-  }
 }

Piece.java

@@ -1,8 +1,8 @@
 import java.awt.*;
 import java.util.*;
 
-public abstract class Piece {
-  public static int SIZE = 40;
+public class Piece {
+  ArrayList<Integer> legalMoves;
   Position pos;
   Image sprite;
   String color;
@@ -14,35 +14,11 @@ public abstract class Piece {
   }
 
   public void draw(Graphics g) {
-    g.drawImage(sprite, (pos.x + 1) * 40, (pos.y + 1) * 40, null);
+    g.drawImage(sprite, pos.x * 40, pos.y * 40, null);
   }
 
-  public abstract ArrayList<Position> getLegalMoves(Board board);
-
-  public abstract ArrayList<Position> getPseudoLegalMoves(Board board);
-
-  public abstract Piece copy();
-
-  public boolean colorMatches(Piece p) {
-    return this.color.equals(p.color);
-  }
-
-  public ArrayList<Position> slide(Board board, int dx, int dy, int maxSteps) {
-    ArrayList<Position> positions = new ArrayList<>();
-    int step = 1;
-    while (step < maxSteps) {
-      Position test = new Position(pos.x + step * dx, pos.y + step * dy);
-      if (!Board.inBounds(test)) break;
-      if (board.isOpen(test)) {
-        positions.add(test);
-      } else if (board.getPiece(test).colorMatches(this)) {
-        break;
-      } else {
-        positions.add(test);
-        break;
-      }
-      step++;
-    }
-    return positions;
+  public ArrayList<Position> getLegalMoves(Board board) {
+    System.out.println("parent method not overriden");
+    return null;
   }
 }

Position.java

@@ -5,9 +5,4 @@ public class Position {
     this.x = x;
     this.y = y;
   }
-
-  public boolean equals(Object o) {
-    Position pos = (Position) o;
-    return pos.x == this.x && pos.y == this.y;
-  }
 }

Queen.java

@@ -1,33 +0,0 @@
-import java.util.*;
-import javax.swing.ImageIcon;
-
-public class Queen extends Piece {
-
-  public Queen(int x, int y, String color) {
-    super(x, y, color, new ImageIcon("sprites/" + color + "/queen.png").getImage());
-  }
-
-  public Piece copy() {
-    Piece newP = new Queen(this.pos.x, this.pos.y, this.color);
-    return newP;
-  }
-
-  public ArrayList<Position> getPseudoLegalMoves(Board board) {
-    ArrayList<Position> positions = new ArrayList<Position>();
-
-    positions.addAll(slide(board, -1, -1, 7));
-    positions.addAll(slide(board, 1, -1, 7));
-    positions.addAll(slide(board, -1, 1, 7));
-    positions.addAll(slide(board, 1, 1, 7));
-    positions.addAll(slide(board, 1, 0, 7));
-    positions.addAll(slide(board, -1, 0, 7));
-    positions.addAll(slide(board, 0, 1, 7));
-    positions.addAll(slide(board, 0, -1, 7));
-
-    return positions;
-  }
-
-  public ArrayList<Position> getLegalMoves(Board board) {
-    return getPseudoLegalMoves(board);
-  }
-}

Rook.java

@@ -1,31 +0,0 @@
-import java.util.*;
-import javax.swing.ImageIcon;
-
-public class Rook extends Piece {
-  boolean hasMoved;
-
-  public Rook(int x, int y, String color) {
-    super(x, y, color, new ImageIcon("sprites/" + color + "/rook.png").getImage());
-    hasMoved = false;
-  }
-
-  public Piece copy() {
-    Piece newP = new Rook(this.pos.x, this.pos.y, this.color);
-    return newP;
-  }
-
-  public ArrayList<Position> getPseudoLegalMoves(Board board) {
-    ArrayList<Position> positions = new ArrayList<Position>();
-
-    positions.addAll(slide(board, 1, 0, 7));
-    positions.addAll(slide(board, -1, 0, 7));
-    positions.addAll(slide(board, 0, 1, 7));
-    positions.addAll(slide(board, 0, -1, 7));
-
-    return positions;
-  }
-
-  public ArrayList<Position> getLegalMoves(Board board) {
-    return getPseudoLegalMoves(board);
-  }
-}