import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
 
public class IanSays extends JFrame implements ActionListener
{
    ImageIcon dark [] = {new ImageIcon("darkRed.png"),
                  new ImageIcon("darkBlue.png"), new ImageIcon("darkGreen.png"),
                                             new ImageIcon("darkYellow.png")};
    ImageIcon light [] = {new ImageIcon("red.png"),
                  new ImageIcon("blue.png"), new ImageIcon("green.png"),
                                             new ImageIcon("yellow.png")};
    JButton btns [] = {new JButton(dark[0]),new JButton(dark[1]),
                    new JButton(dark[2]), new JButton(dark[3])};
 
    Container cont;
 
    String code = "";
 
    String guess = "";
 
    int guesses = 0;
 
    public IanSays()
    {
        super("Ian Says");
        setSize(415,425);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
 
        cont = getContentPane();
        cont.setLayout(null);
 
        for(int i = 0; i < btns.length; i++)
        {
            cont.add(btns[i]);
            btns[i].addActionListener(this);
            if(i<2)
            {
                btns[i].setBounds(i*200,0,200,200);
            }
            else
            {
                btns[i].setBounds((i-2)*200,200,200,200);
            }
        }
        play();
    }
 
    public void play()
    {
        System.out.println("play");
        for(int i = 0; i < code.length(); i++)
        {
            System.out.println(" in play loop");
            reset();
 
            cont.validate();
 
            try
            {
                Thread.sleep(250);
            }
            catch(Exception e){}
 
            char letter = code.toCharArray()[i];
            if(letter=='r')
            {
                System.out.println("    RED");
                btns[0].setIcon(light[0]);
            }
            if(letter=='b')
            {
                System.out.println("    BLUE");
                btns[1].setIcon(light[1]);
            }
            if(letter=='g')
            {
                System.out.println("    GREEN");
                btns[2].setIcon(light[2]);
            }
            if(letter=='y')
            {
                System.out.println("    YELLOW");
                btns[3].setIcon(light[3]);
            }
 
            cont.validate();
 
            try
            {
                Thread.sleep(250);
            }
            catch(Exception e){}
        }
 
        try
        {
            Thread.sleep(250);
        }
        catch(Exception e){}
 
        newColor();
 
        try
        {
            Thread.sleep(250);
        }
        catch(Exception e){}
        reset();
        System.out.println("    end of play");
    }
 
    public void newColor()
    {
        int rand = (int)(Math.random()*4);
        if(rand==0)
        {
            btns[rand].setIcon(light[rand]);
            code+="r";
        }
        if(rand==1)
        {
            btns[rand].setIcon(light[rand]);
            code+="b";
        }
        if(rand==2)
        {
            btns[rand].setIcon(light[rand]);
            code+="g";
        }
        if(rand==3)
        {
            btns[rand].setIcon(light[rand]);
            code+="y";
        }
        cont.validate();
    }
 
    public void reset()
    {
        for(int i = 0; i < btns.length; i++)
        {
            btns[i].setIcon(dark[i]);
        }
    }
 
    public void actionPerformed(ActionEvent e)
    {
        for(int i = 0; i < btns.length; i++)
        {
            if(e.getSource()==btns[i])
            {
                if(i==0)
                    guess+="r";
                if(i==1)
                    guess+="b";
                if(i==2)
                    guess+="g";
                if(i==3)
                    guess+="y";
                guesses++;
                break;
            }
        }
 
        String codeSeg = code.substring(0,guesses);
        System.out.println("code "+code);
        System.out.println("codeseg "+codeSeg);
        System.out.println("guess "+guess);
        if(!codeSeg.equals(guess))
        {
            System.out.println("lose!");
            //You Lose
        }
        else
        {
            if(guesses==code.length())
            {
                System.out.println("next rnd!");
                guess = "";
                guesses = 0;
                play();
            }
        }
    }
 
    public static void main (String[]args)
    {
        new IanSays();
    }
}

java.util.Random randomGen = new java.util.Random(System.currentTimeMillis());
int rand = randomGen.nextInt(4);

char letter = code.toCharArray()[i];

char letter = code.charAt(i);

cont.validate();