added new highlightedPossibleMoves alternative

src/backend/Board.java

@@ -308,11 +308,48 @@ public class Board {
 	
 	/* The following methods require more work ! */
 	
-	private void highlightedPossibleMoves(Piece piece) {
+	/*private void highlightedPossibleMoves(Piece piece) {
 		highlightedSquares.clear();
 		MoveHighlighter highlighter= new MoveHighlighter();
 		highlightedSquares.addAll(highlighter.getPossibleMoves(piece, this));
 	}
+*/
+	public void highlightedPossibleMoves(Piece piece) {
+	    highlightedSquares.clear();
+	    MovePiece move = new MovePiece(piece, this);
+	    int x = piece.getX();
+	    int y = piece.getY();
+
+	    for (int newX = 0; newX < width; newX++) {
+	        for (int newY = 0; newY < height; newY++) {
+	            boolean isValid = false;
+
+	            switch (piece.getType()) {
+	                case Pawn:
+	                    isValid = move.movePawnSimulate(newX, newY);
+	                    break;
+	                case Rook:
+	                    isValid = move.moveRookSimulate(newX, newY);
+	                    break;
+	                case Knight:
+	                    isValid = move.moveKnightSimulate(newX, newY);
+	                    break;
+	                case Bishop:
+	                    isValid = move.moveBishopSimulate(newX, newY);
+	                    break;
+	                case Queen:
+	                    isValid = move.moveQueenSimulate(newX, newY);
+	                    break;
+	                case King:
+	                    isValid = move.moveKingSimulate(newX, newY);
+	                    break;
+	            }
+	            if (isValid) {
+	                highlightedSquares.add(new int[]{newX, newY});
+	            }
+	        }
+	    }
+	}
 	
 	public boolean isHighlighted(int x, int y) {
 		for(int i=0; i<highlightedSquares.size();i++) { //loops through list of highlighted squares

src/backend/MoveHighlighter.java

@@ -3,8 +3,8 @@ package backend;
 import java.util.ArrayList;
 
 public class MoveHighlighter {
-	public ArrayList<int[]> getPossibleMoves(Piece piece, Board board){
-		ArrayList<int[]> validMoves = new ArrayList<int[]>();
+	public ArrayList<int[]> getPossibleMoves(Piece piece, Board board){ //checking every sqaure on the board
+		ArrayList<int[]> validMoves = new ArrayList<int[]>();//adding possible squares to list 
 		MovePiece movement = new MovePiece(piece, board);
 		PieceType type= piece.getType();
 		MovementCapabilities specialMoves= new MovementCapabilities();

src/backend/MovePiece.java

@@ -11,53 +11,27 @@ public class MovePiece {
     }
     
  /*alternative
-  *   public boolean validateMove(int x, int y, boolean simulate) {
-    	PieceType type = piece.getType();
-    	switch(type) {
-    	case Pawn:
-    		return validatePawnMove(x, y, simulate);
-    	case Rook:
-    		return validateRookMove(x, y, simulate);
-    	case Knight:
-    		return validateKnightMove(x, y, simulate);
-    	case Bishop:
-    		return validateBishopMove(x, y, simulate);
-    	case Queen:
-    		return validateQueenMove(x, y, simulate);
-    	case King:
-    		return validateKingMove(x, y, simulate);
-    	default:
-    	return false;
-    	}
-    }
+  public boolean moveKnight(int x, int y, boolean simulate) {
+    int currentX = piece.getX();
+    int currentY = piece.getY();
 
-    public boolean moveKnight(int x, int y) {
-    	return validateMove(x, y, false);
-    }
+    int[][] knightMoves = {
+        {2, 1}, {2, -1}, {-2, 1}, {-2, -1},
+        {1, 2}, {1, -2}, {-1, 2}, {-1, -2}
+    };
 
-    public boolean moveKnightSimulate(int x, int y) {
-    	return validateMove(x, y, true);
-    }
-     
-    private boolean validateKnightMove(int x, int y, boolean simulate) {
-        int currentX = piece.getX();
-        int currentY = piece.getY();
-        
-        int[][] knightMoves = {  //we establish all possible moves a knight can have
-                {2, 1}, {2, -1}, {-2, 1}, {-2, -1},
-                {1, 2}, {1, -2}, {-1, 2}, {-1, -2}
-            };
-        for (int[] move : knightMoves) { // we create a loop through each possible move
-            if (currentX + move[0] == x && currentY + move[1] == y) { // checks if move matches the target coordination (move0 is in x direction, move 1 in y)
-                Piece targetPiece = board.getPiece(x, y); //get the piece on the target spot
-                if (targetPiece == null || targetPiece.isWhite() != piece.isWhite()) {
-                    board.movePiece(currentX, currentY, x, y); //move our figure to the target spot
-                    return true;
-                }
+    for (int[] move : knightMoves) {
+        if (currentX + move[0] == x && currentY + move[1] == y) {
+            Piece targetPiece = board.getPiece(x, y);
+            if (targetPiece == null || targetPiece.isWhite() != piece.isWhite()) {
+                if (!simulate) board.movePiece(currentX, currentY, x, y);
+                return true;
             }
         }
-        return false;	
-    } */
+     }
+    return false;
+	}	
+   } */
     
   ///Pawn movement logic  
     public boolean movePawn(int x, int y) { //method definition for pawn
@@ -127,7 +101,6 @@ public class MovePiece {
                     return true;
                 }
             }
-        
         }
         return false;
     }