Square.java

import javax.swing.JLabel;
import javax.swing.ImageIcon;
import java.awt.Color;
import javax.swing.BorderFactory;
import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;

/**
 * Square objects represent a tile on the checkers book
 *
 * @author Patrick McCarty
 */
public class Square extends JLabel implements MouseListener {

    private Color tileCol; // color of this square 
    private String piece;  // what piece is on this square
    private String player; // what player owns the piece on this square
    private int row;       // row of this square on the bord
    private int col;       // col of this square on the bord
    
    // border color for all squares
    private static final Color BORDERCOLOR = new Color(0xffd700);
    
    // Path to the image of the red pawn
    private static final String REDPAWNIMGPATH = "images/redPawn.png";

    // Path to the image of the lav pawn
    private static final String LAVPAWNIMGPATH = "images/lavanderPawn.png";

    // Path to the image of the lav queen
    private static final String LAVQUEENIMGPATH = "images/lavanderQueen.png";

    // Path to the image of the red queen
    private static final String REDQUEENIMGPATH = "images/redQueen.png";

    /**
     * Constructs a Square object
     *
     * @param tileCol  color of the square
     * @param piece    the piece on this tile or "none" if empty
     * @param pieceCol color of the piece on this square
     * @param player   1 for player 1 and 2 for player 2
     * @param the      row of this square on the board
     * @param the      column of this square on the board
     */
    public Square(Color tileCol, String piece, String player, int row, int col) {
        super();

        this.tileCol = tileCol;
        this.piece = piece;
        this.player = player;
        this.row = row;
        this.col = col;

        this.addMouseListener(this);
        this.setBorder(BorderFactory.createLineBorder(BORDERCOLOR, 1));

        this.setHorizontalAlignment(JLabel.CENTER);
        this.setBackground(tileCol);
        this.setOpaque(true);

        // set the image of the piece according to its arguments
        if (piece.equals("pawn") && player.equals("player1")) {
            this.setIcon(new ImageIcon(REDPAWNIMGPATH));
        } else if (piece.equals("pawn") && player.equals("player2")) {
            this.setIcon(new ImageIcon(LAVPAWNIMGPATH));
        } else if (piece.equals("queen") && player.equals("player1")) {
            this.setIcon(new ImageIcon(REDQUEENIMGPATH));
        } else if (piece.equals("queen") && player.equals("player2")) {
            this.setIcon(new ImageIcon(LAVQUEENIMGPATH));
        }
    }

    /**
     * Get the color of the tile
     *
     * @return Color of this tile
     */
    public Color getTileCol() {
        return this.tileCol;
    }

    /**
     * Get the piece on this tile if one exists
     *
     * @return "pawn", "queen" or "none"
     */
    public String getPiece() {
        return this.piece;
    }

    /**
     * Get the player who owns the piece on this tile if one exists
     *
     * @return "player1", "player2", "none"
     */
    public String getPlayer() {
        return this.player;
    }

    /**
     * Get the coordinates of this piece on the checkers board
     *
     * @return row and column of piece on board
     */
    public int[] getCoords() {
        int[] coords = new int[2];
        coords[0] = this.row;
        coords[1] = this.col;
        return coords;
    }

    /**
     * Remove the piece on this tile
     */
    public void removePiece() {
        this.piece = "none";
        this.setIcon(null);
        this.player = "none";
    }

    /**
     * Place piece on this tile
     * 
     * @param piece the piece to be placed
     * @param player the player who this piece belongs to
     */
    public void placePiece(String piece, String player) {
        this.piece = piece;
        this.player = player;
        if (player.equals("player1") && piece.equals("pawn")) {
            this.setIcon(new ImageIcon(REDPAWNIMGPATH));
        } else if (player.equals("player1") && piece.equals("queen")) {
            this.setIcon(new ImageIcon(REDQUEENIMGPATH));
        } else if (player.equals("player2") && piece.equals("pawn")) {
            this.setIcon(new ImageIcon(LAVPAWNIMGPATH));
        } else if (player.equals("player2") && piece.equals("queen")) {
            this.setIcon(new ImageIcon(LAVQUEENIMGPATH));
        }
    }

    /**
     * Promote this piece to a queen
     */
    public void promoteToQueen() {
        this.piece = "queen";
        if (this.player.equals("player1")) {
            this.setIcon(new ImageIcon(REDQUEENIMGPATH));
        } else {
            this.setIcon(new ImageIcon(LAVQUEENIMGPATH));
        }
    }

    /**
     * Display the coordinates of this Square
     * 
     * @return the coordinates of this square
     */
    public String toString() {
        return "(" + this.row + ", " + this.col + ")";
    }

    public void mouseClicked(MouseEvent e) {
    }

    public void mousePressed(MouseEvent e) {
        GameRunner.processMousePressed(this);
    }

    public void mouseReleased(MouseEvent e) {
    }

    public void mouseEntered(MouseEvent e) {
    }

    public void mouseExited(MouseEvent e) {
    }
}