Implement prevention of teleportation for possible moves

src/Bishop.java

@@ -5,14 +5,14 @@ public class Bishop extends Piece {
         super(black, panel, "black-bishop.png", "white-bishop.png");
     }
 
-    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position) {
+    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position, Board board) {
         ArrayList<BoardCoordinate> possibleMoves = new ArrayList<>();
-        for(int i = 1; i <= 7; i++) {
-            possibleMoves.add(new BoardCoordinate(position.x - i, position.y - i));
-            possibleMoves.add(new BoardCoordinate(position.x - i, position.y + i));
-            possibleMoves.add(new BoardCoordinate(position.x + i, position.y - i));
-            possibleMoves.add(new BoardCoordinate(position.x + i, position.y + i));
-        }
+
+        getPossibleMovesInDirection(1, 1, position, board, possibleMoves);
+        getPossibleMovesInDirection(-1, -1, position, board, possibleMoves);
+        getPossibleMovesInDirection(1, -1, position, board, possibleMoves);
+        getPossibleMovesInDirection(-1, 1, position, board, possibleMoves);
+
         return possibleMoves;
     }
 }

src/Board.java

@@ -142,9 +142,6 @@ public class Board {
     }
 
     public void draw(ScreenCoordinate mousePosition) {
-
-
-
         // Draw board
         graphics.setColor(BLACK);
         graphics.fillRect(0, 0, DIMENSION, DIMENSION);

src/King.java

@@ -5,7 +5,7 @@ public class King extends Piece {
         super(black, panel, "black-king.png", "white-king.png");
     }
 
-    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position) {
+    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position, Board board) {
         ArrayList<BoardCoordinate> possibleMoves = new ArrayList<>();
         possibleMoves.add(new BoardCoordinate(position.x - 1, position.y - 1));
         possibleMoves.add(new BoardCoordinate(position.x - 1, position.y + 1));

src/Knight.java

@@ -6,7 +6,7 @@ public class Knight extends Piece {
         super(black, panel, "black-knight.png", "white-knight.png");
     }
 
-    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position) {
+    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position, Board board) {
         ArrayList<BoardCoordinate> possibleMoves = new ArrayList<>();
         possibleMoves.add(new BoardCoordinate(position.x - 2, position.y - 1));
         possibleMoves.add(new BoardCoordinate(position.x - 1, position.y - 2));

src/Pawn.java

@@ -5,7 +5,7 @@ public class Pawn extends Piece {
         super(black, panel, "black-pawn.png", "white-pawn.png");
     }
 
-    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position) {
+    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position, Board board) {
         ArrayList<BoardCoordinate> possibleMoves = new ArrayList<>();
         if (this.black) {
             possibleMoves.add(new BoardCoordinate(position.x, position.y + 1));

src/Piece.java

@@ -13,10 +13,10 @@ public abstract class Piece {
         image = panel.loadImage(black ? blackImagePath : whiteImagePath);
     }
 
-    public abstract ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position);
+    public abstract ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position, Board board);
 
     public ArrayList<BoardCoordinate> getLegalMoves(BoardCoordinate position, Board board) {
-        ArrayList<BoardCoordinate> legalMoves = getPossibleMoves(position);
+        ArrayList<BoardCoordinate> legalMoves = getPossibleMoves(position, board);
         for (int i = 0; i < legalMoves.size(); i++) {
             BoardCoordinate possibleMove = legalMoves.get(i);
             Piece targetPiece = board.get(possibleMove);
@@ -46,4 +46,15 @@ public abstract class Piece {
     public void draw(Graphics graphics, ImageObserver observer, ScreenCoordinate coordinate) {
         draw(graphics, observer, coordinate.x, coordinate.y);
     }
+
+    void getPossibleMovesInDirection(int dx, int dy, BoardCoordinate position, Board board, ArrayList<BoardCoordinate> possibleMoves) {
+        for (
+                int x = position.x + dx, y = position.y + dy;
+                !board.outOfBounds(x, y);
+                x += dx, y += dy) {
+            BoardCoordinate coordinate = new BoardCoordinate(x, y);
+            possibleMoves.add(coordinate);
+            if (board.get(coordinate) != null) break;
+        }
+    }
 }

src/Queen.java

@@ -5,7 +5,7 @@ public class Queen extends Piece {
         super(black, panel, "black-queen.png", "white-queen.png");
     }
 
-    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position) {
+    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position, Board board) {
         ArrayList<BoardCoordinate> possibleMoves = new ArrayList<>();
         for(int i = 1; i <= 7; i++) {
             possibleMoves.add(new BoardCoordinate(position.x - i, position.y - i));

src/Rook.java

@@ -5,7 +5,7 @@ public class Rook extends Piece {
         super(black, panel, "black-rook.png", "white-rook.png");
     }
 
-    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position) {
+    public ArrayList<BoardCoordinate> getPossibleMoves(BoardCoordinate position, Board board) {
         ArrayList<BoardCoordinate> possibleMoves = new ArrayList<>();
         for(int i = 1; i <= 7; i++) {
             possibleMoves.add(new BoardCoordinate(position.x - i, position.y));