EmptyFieldHandler

package com.company;

import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
// if (Math.abs(buffer.getIndex() - b.getIndex())==1 && (Math.abs(buffer.getRow() - b.getRow())==1))
/**
 * Created by Максим on 08.03.2016.
 */
public class EmtyFieldHandler extends MouseAdapter {
    private Field b;
    static public Field buffer;
    public EmtyFieldHandler(Field b) {
        this.b = b;
    }
    boolean isMovePossible(Field buffer, Field b)
    {
        return  (buffer.type==1)&&((buffer.getIndex() == b.getIndex() + 1 && buffer.getRow() == b.getRow() - 1)
                || (buffer.getIndex() == b.getIndex() - 1 && buffer.getRow() == b.getRow() - 1))||
                ((buffer.type==2)&&((buffer.getIndex() == b.getIndex() + 1 && buffer.getRow() == b.getRow() + 1)
                        || (buffer.getIndex() == b.getIndex() - 1 && buffer.getRow() == b.getRow() + 1)));
    }

    boolean isHitPossible(Field buffer, Field b) {
        boolean bool=false;
        for(Field e: Board.fields) {
            if (buffer.type == 1)
                if ((Math.abs(buffer.getIndex() - b.getIndex()) == 2
                        && Math.abs(buffer.getRow() - b.getRow()) == 2))
                    if ((e.getIndex() == (buffer.getIndex() + b.getIndex()) / 2)
                            && (e.getRow() == (buffer.getRow() + b.getRow()) / 2) && e.type == 2)
                        bool=true;
            if (buffer.type == 2)
                if ((Math.abs(buffer.getIndex() - b.getIndex()) == 2
                        && Math.abs(buffer.getRow() - b.getRow()) == 2))
                    if ((e.getIndex() == (buffer.getIndex() + b.getIndex()) / 2)
                            && (e.getRow() == (buffer.getRow() + b.getRow()) / 2) && e.type == 1)
                        bool=true;
        }
        return bool;
    }

    void swapFields(Field buffer, Field b) {
        int x = b.getIndex();
        int y = b.getRow();
        b.setIndex(buffer.getIndex());
        b.setRow(buffer.getRow());
        buffer.setIndex(x);
        buffer.setRow(y);
        //меняем расположение на доске
        Point p1 = b.getLocation();
        b.setLocation(buffer.getLocation());
        buffer.setLocation(p1);
        buffer.setBackground(Field.bgDark);
        b.setBackground(Field.bgDark);
        buffer = null;
    }

    @Override
    public void mouseClicked(MouseEvent e) {
        if(buffer!=null) {
            if(isMovePossible(buffer,b))
            {
               swapFields(buffer,b);
            }
            else if(isHitPossible(buffer,b)) {
                for(Field field: Board.fields)
                    if (((field.getIndex() == (buffer.getIndex() + b.getIndex()) / 2)
                            && (field.getRow() == (buffer.getRow() + b.getRow()) / 2))) {
                        field.type = 0;
                        field.setIcon(null);
                    }
                //swapFields(buffer,b);



            }
                else JOptionPane.showMessageDialog(null, "НЕДОПУСТИМЫЙ ХОД");
        }
        else JOptionPane.showMessageDialog(null, "ВЫБЕРИТЕ ШАШКУ");
    }
}