oldHandler2

package com.company;

import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.*;

import static com.company.Board.fields;
import static com.company.EmtyFieldHandler.*;


/**
 * Created by Максим on 08.03.2016.
 */

public class FieldHandler extends MouseAdapter {
    private Field checker;
    static Tree.Node root;
    static Tree tree;

    public FieldHandler(Field checker) {
        this.checker = checker;
    }

   /*void showPossibleMoves() {
       if(buffer.type==1) {
           if (fields[buffer.getIndex() + 1][buffer.getRow() + 1].type == 0)
               fields[buffer.getIndex() + 1][buffer.getRow() + 1].setBackground(Color.green);
           if(fields[buffer.getIndex() - 1][buffer.getRow() + 1].type == 0)
               fields[buffer.getIndex() - 1][buffer.getRow() + 1].setBackground(Color.green);
       }
       if(buffer.type==2) {
           if (fields[buffer.getIndex() + 1][buffer.getRow() - 1].type == 0)
               fields[buffer.getIndex() + 1][buffer.getRow() - 1].setBackground(Color.green);
           if(fields[buffer.getIndex() - 1][buffer.getRow() - 1].type == 0)
               fields[buffer.getIndex() - 1][buffer.getRow() - 1].setBackground(Color.green);
       }
   }*/

    void addNodeIntoTree(Field buff, Tree.Node root) {
        System.out.println(buff.getIndex()+""+buff.getRow()+ " type: "+buff.type);
            //System.out.println("buff.type == 0 and "+ pressedChecker.getIndex()+""+pressedChecker.getRow()+ " type: "+pressedChecker.type);
            /*if (pressedChecker.type == 1) {
                System.out.println("pressedChecker.type == 1 and "+Board.fields[(pressedChecker.getIndex() + buff.getIndex()) / 2][(pressedChecker.getRow() + buff.getRow()) / 2].getIndex()
                        +""+Board.fields[(pressedChecker.getIndex() + buff.getIndex()) / 2][(pressedChecker.getRow() + buff.getRow()) / 2].getRow()
                        + " type: "+Board.fields[(pressedChecker.getIndex() + buff.getIndex()) / 2][(pressedChecker.getRow() + buff.getRow()) / 2].type);*/
                if (Board.fields[(pressedChecker.getIndex() + buff.getIndex()) / 2][(pressedChecker.getRow() + buff.getRow()) / 2].type!=pressedChecker.type&&
                        Board.fields[(pressedChecker.getIndex() + buff.getIndex()) / 2][(pressedChecker.getRow() + buff.getRow()) / 2].type!=0) {
                    Tree.Node node = new Tree.Node(fields[buff.getIndex()][buff.getRow()]);
                    root.addChildren(node);
                    //buff.type = 1;
                    Field buffer = pressedChecker;
                    buff.type = pressedChecker.type;
                    pressedChecker = buff;
                    constraintTree(node);
                    pressedChecker = buffer;
                    buff.type = 0;
                }


            /*if (pressedChecker.type == 2) {
                System.out.println("pressedChecker.type == 2 and "+Board.fields[(pressedChecker.getIndex() + buff.getIndex()) / 2][(pressedChecker.getRow() + buff.getRow()) / 2].getIndex()
                        +""+Board.fields[(pressedChecker.getIndex() + buff.getIndex()) / 2][(pressedChecker.getRow() + buff.getRow()) / 2].getRow()
                        + " type: "+Board.fields[(pressedChecker.getIndex() + buff.getIndex()) / 2][(pressedChecker.getRow() + buff.getRow()) / 2].type);
        if (Board.fields[(pressedChecker.getIndex() + buff.getIndex()) / 2][(pressedChecker.getRow() + buff.getRow()) / 2].type!=pressedChecker.type&&
                Board.fields[(pressedChecker.getIndex() + buff.getIndex()) / 2][(pressedChecker.getRow() + buff.getRow()) / 2].type!=0) {
                    Tree.Node node = new Tree.Node(fields[buff.getIndex()][buff.getRow()]);
                    root.addChildren(node);
                    //buff.type = 2;
                    pressedChecker = buff;
                    pressedChecker.type=2;
                    constraintTree(node);
                    buff.type = 0;
                }*/
            }



    void constraintTree(Tree.Node root) {
        Field buff;
        System.out.println("pressedChecker: "+pressedChecker.getIndex()+" "+pressedChecker.getRow());
        if(pressedChecker.getIndex()+2<8 && pressedChecker.getRow()+2<8 && fields[pressedChecker.getIndex()+2][pressedChecker.getRow()+2].type==0) {
            buff = fields[pressedChecker.getIndex()+2][pressedChecker.getRow()+2];
            addNodeIntoTree(buff,root);
        }
        if(pressedChecker.getIndex()+2<8 && pressedChecker.getRow()-2>=0 && fields[pressedChecker.getIndex()+2][pressedChecker.getRow()-2].type==0) {
            buff = fields[pressedChecker.getIndex()+2][pressedChecker.getRow()-2] ;
            addNodeIntoTree(buff,root);
        }
        if(pressedChecker.getIndex()-2>=0 && pressedChecker.getRow()+2<8 && fields[pressedChecker.getIndex()-2][pressedChecker.getRow()+2].type==0) {
            buff = fields[pressedChecker.getIndex()-2][pressedChecker.getRow()+2];
            addNodeIntoTree(buff,root);
        }
        if(pressedChecker.getIndex()-2>=0 && pressedChecker.getRow()-2>=0 && fields[pressedChecker.getIndex()-2][pressedChecker.getRow()-2].type==0) {
            System.out.println("Я ЗДЕСЯ!!!");
            buff = fields[pressedChecker.getIndex()-2][pressedChecker.getRow()-2];
            addNodeIntoTree(buff,root);

        }
        pressedChecker = checker;
    }

    public static void showPossibleHits(Tree.Node parentNode, Color color){
        ArrayList<Tree.Node<Field>> list = parentNode.getChildrens();
        if(!list.isEmpty())
        {
            System.out.println("СПИСКОК ПОТОМКОВ ПОЛЯ " + parentNode.getField().getIndex()+parentNode.getField().getRow());
            for(Tree.Node<Field> childrenNode: list ) {
               System.out.println(childrenNode.getField().getIndex() +""+ childrenNode.getField().getRow());
                childrenNode.getField().setBackground(color);
                showPossibleHits(childrenNode,color);
            }
            System.out.println("_________________");
        }

    }

    @Override
    public void mouseClicked(MouseEvent e) {
        if(pressedChecker==null) {
            checker.setBackground(Color.yellow);
            pressedChecker=checker;
        }
        else
        {
            showPossibleHits(FieldHandler.tree.getRoot(),Field.bgDark);
            pressedChecker.setBackground(Field.bgDark);
            checker.setBackground(Color.yellow);
            pressedChecker=checker;
        }

        root = new Tree.Node(fields[pressedChecker.getIndex()][pressedChecker.getRow()]);
        tree = new Tree(root);

        constraintTree(tree.getRoot());
        pressedChecker=checker;
        showPossibleHits(tree.getRoot(),Color.BLUE);
        //showPossibleMoves();
    }
}