/**********************************************************************
* Created by: Eric Gilbert
* Date: 1/24/99
* Designed to mimic the game Deluxe Lights Out(r) by Tiger Electronics
**********************************************************************/


import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Random;

public class LightsOut
                   extends Applet implements ActionListener {

  Button[][] lights = new Button[6][6];
  Color mostlyRed = new Color(255, 50, 50);
  Color veryDarkGray = Color.gray;

  public void init() {
    	
    // Color and layout the buttons on the screen

    setLayout(new GridLayout(6, 6)); // Make the screen a grid
    double choice;
    Random generator = new Random();

    for(int i = 0; i < 6; i++)
      for(int j = 0; j < 6; j++) {
        choice = generator.nextDouble();
        lights[i][j] = new Button("");
	if (choice < 0.5)
          lights[i][j].setBackground(veryDarkGray);
        else
          lights[i][j].setBackground(mostlyRed);
        add(lights[i][j]);
        lights[i][j].addActionListener(this);
      }
  }

  public void changeColor(Button toChange) { // Invert Color of Button

    if (toChange.getBackground() == mostlyRed)
      toChange.setBackground(veryDarkGray);
    else
      toChange.setBackground(mostlyRed);
  }

  public void actionPerformed(ActionEvent e) {

    int row = 0, column = 0; // Where did the mouse push the button?

    for(int i = 0; i < 6; i++)
      for(int j = 0; j < 6; j++)
        if (lights[i][j] == e.getSource()) {
          row = i;
          column = j;
        }

    changeColor(lights[row][column]);

    if (column - 1 >= 0)
      changeColor(lights[row][column - 1]);

    if (row + 1 <= 5)
      changeColor(lights[row + 1][column]);

    if (column + 1 <= 5)
      changeColor(lights[row][column + 1]);

    if (row - 1 >= 0)
      changeColor(lights[row - 1][column]);
  }
}