package snake.gui;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.geom.Rectangle2D;
import java.util.ArrayList;
import java.util.List;

import javax.swing.JPanel;

@SuppressWarnings("serial")
public class SnakePanel extends JPanel
{
  Color board[][] = new Color[30][30];
  private Rectangle2D[][] my_board = new Rectangle2D[30][30];
  private boolean collided;
  private boolean growMode;
  int growingThreeSpaces;
  int spacesToGrowTotal;
  int beginning;
  
  public SnakePanel(Color[][] gameBoard)
  {
    collided = false;
    growMode = false;
    beginning = 0;
    board = gameBoard;
    
    for (int x = 0; x < 30; x++)
    {
      for (int y = 0; y < 30; y++)
      {
        my_board[x][y] =
          new Rectangle2D.Double(y * 15, x * 15, 14, 14);      //Quick fix
      }
    }   //board is correct here
  }
  
  public void paintComponent(final Graphics the_graphics)
  {
    super.paintComponent(the_graphics);
    //Rectangle2D my_square;
    final Graphics2D g2d = (Graphics2D) the_graphics;
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    for (int x = 0; x < 30; x++)
    {
      for (int y = 0; y < 30; y++)
      {
        g2d.setColor(board[x][y]);
        g2d.fill(my_board[x][y]);
        g2d.draw(my_board[x][y]);
      }
    }  
  }
  public void clearOldSnake(List points)
  {
    //System.out.println("clearOldSnake(List points (points.size() = " + points.size() + ")");
    for (int x = 0; x < points.size(); x++)
    {
      board[points.get(x).x][points.get(x).y] = Color.GREEN;
    }
  }
  public boolean growMode()
  {
    return growMode;
  }
  /*
   * This updates the position of the snake by points (positions) on the map level
   */
  public void updateSnake(List points)
  {
    if (beginning < 2) { beginning++; }
    if (growMode)
    {
      growingThreeSpaces++;
      if (growingThreeSpaces == spacesToGrowTotal)
      {
        resetGrowMode();
      }
    }

    for (int x = 0; x < points.size(); x++)
    {
      //System.out.println("Coords: " + board[points.get(x).x][points.get(x).y]);
      if (board[points.get(x).x][points.get(x).y] == Color.BLUE)
      {
        //System.out.println("COLLIDED WITH SOMETHING THAT MAKES SNAKE GROW");
        spacesToGrowTotal += 3;
        growMode = true;

      }
      
      else if (board[points.get(x).x][points.get(x).y] != Color.GREEN &&
               board[points.get(x).x][points.get(x).y] != Color.BLUE)
      {
        if (beginning > 1) { collided = true; }
      }

      board[points.get(x).x][points.get(x).y] = Color.YELLOW;
      //System.out.println("Coloring the snake yellow");
      //System.out.println(points.get(x).x + ", " + points.get(x).y);
    }
    repaint();
  }
  public boolean isCollided()
  {
    return collided;
  }
  public void resetCollided()
  {
    collided = false;
  }
  public void resetGrowMode()
  {
    spacesToGrowTotal = 0;
    growingThreeSpaces = 0;
    growMode = false;
  }
  public boolean checkForLevelCompletion()
  {
    boolean complete = true;
    for (int x = 0; x < 30; x++)
    {
      for (int y = 0; y < 30; y++)
      {
        if (board[x][y] == Color.BLUE)
        {
          complete = false;
        }
      }
    }
    return complete;
  }
}

package snake.gui;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.Point;
import java.util.ArrayList;
import java.util.List;

import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.Timer;

import snake.enums.KeyDirections;

@SuppressWarnings("serial")
public class SnakeGUI extends JFrame
{
  public static final int FRAME_HEIGHT = 500;
  public static final int FRAME_WIDTH = 455;
  //private int[] my_keys;
  
  private int my_snake_direction;
  private int my_current_level;
  
  private Listener my_listener = new Listener();
  
  private MyTimer my_timer_listener = new MyTimer();
  private Timer my_timer;
  private KeyboardListener my_keyboardlistener = new KeyboardListener();
  
  private final JPanel my_main_panel = new JPanel(new BorderLayout());
 
  private final JMenuBar my_menubar = new JMenuBar();
  
  private final JMenu my_menubar_game = new JMenu("Game");
  private final JMenuItem my_menubar_game_newgame = new JMenuItem("New Game");
  private final JMenuItem my_menubar_game_pause = new JMenuItem("Pause");
  private final JMenuItem my_menubar_game_quit = new JMenuItem("Quit");
  /*******/
  private final JMenu my_menubar_help = new JMenu("Help");
  private final JMenuItem my_menubar_help_rules = new JMenuItem("Rules");
  private final JMenuItem my_menubar_help_about = new JMenuItem("About");

  private SnakePanel my_panel;
  
  private Color[][] board;
  private Level level = new Level();
  
  private List my_snake;
  private List new_snake;

  public SnakeGUI()
  {
    my_current_level = 1;
    my_timer = new Timer(1000, my_timer_listener); 

    my_snake = new ArrayList();
    new_snake = new ArrayList();
    
    my_timer.setDelay(1000);

    newGame();
    setup();
  }
  public void newGame()
  {
    my_timer.start();
    my_snake.clear();
    board = level.getLevel(my_current_level);   //set level at the same time of assigning my_current_level to 1
    my_snake.add(new Point(1, 14));
    my_snake.add(new Point(2, 14));
    my_snake_direction = 40;

  }
  public void setup()
  {
    my_panel = new SnakePanel(board);
    //my_panel.updateSnake(my_snake);    //temp
    my_main_panel.add(my_panel, BorderLayout.CENTER);
    addKeyListener(my_keyboardlistener);
    add(my_main_panel);
    setupMenuBar();
    setJMenuBar(my_menubar);
    setTitle("Snake");
    setResizable(false);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setSize(FRAME_WIDTH, FRAME_HEIGHT);
    setLocationRelativeTo(null);
    setVisible(true);
    //my_panel.resetCollided();
    my_panel.updateSnake(my_snake);
    my_menubar_game_newgame.addActionListener(my_listener);
    my_menubar_game_pause.addActionListener(my_listener);
    my_menubar_game_quit.addActionListener(my_listener);
    my_menubar_help_rules.addActionListener(my_listener);
    my_menubar_help_about.addActionListener(my_listener);

    
  }
  private void setupMenuBar()
  {
    my_menubar.add(my_menubar_game);
    my_menubar_game.add(my_menubar_game_newgame);
    my_menubar_game.add(my_menubar_game_pause);
    my_menubar_game.addSeparator();
    my_menubar_game.add(my_menubar_game_quit);
    my_menubar.add(my_menubar_help);
    my_menubar_help.add(my_menubar_help_rules);
    my_menubar_help.addSeparator();
    my_menubar_help.add(my_menubar_help_about);
  }
  
  private class KeyboardListener implements KeyListener
  {
    /**
     * The key that was just pressed.
     * @param the_event The event that just happened (used to acquire what key was pressed).
     */
    public void keyPressed(final KeyEvent the_event)
    {
      final int key = the_event.getKeyCode();
      if (my_timer.isRunning())
      {
        if (key == 38 && my_snake_direction != 40)
 
        {
          my_snake_direction = key;
          moveSnake(KeyDirections.UP.getDirection());
        }
        else if (key == 40 && my_snake_direction != 38)
        {
          my_snake_direction = key;
          moveSnake(KeyDirections.DOWN.getDirection());
          //System.out.println("DOWN pressed");
        }
        else if (key == 37 && my_snake_direction != 39)
        {
          my_snake_direction = key;
          moveSnake(KeyDirections.LEFT.getDirection());
          //System.out.println("LEFT pressed");
        }
        else if (key == 39 && my_snake_direction != 37)
        {
          my_snake_direction = key;
          moveSnake(KeyDirections.RIGHT.getDirection());
          //System.out.println("RIGHT pressed");
        }
      }
    }
      /**
       * The key that was just released.
       * @param the_event The event that just happened (used to acquire what key was released). 
       */
    public void keyReleased(final KeyEvent the_event)
    {
    }
    /**
     * The key that was just typed.
     * @param the_event The event that just happened (used to acquire what key was typed).
     */
    public void keyTyped(final KeyEvent the_event)
    {
    }
  }

  private void moveSnake(int direction)
  {
    //System.out.println(my_timer.getDelay());
    boolean skipit = true;
    new_snake.clear();
    my_panel.clearOldSnake(my_snake);
    
    //System.out.println(direction + "");
    //If the desired direction is UP and the snake's not going down (can't go down to up, must go left or right first)
    if (direction == 38)
    {
      //System.out.println("Going UP");
      Point newPoint = new Point(my_snake.get(my_snake.size() - 1).x - 1,
          my_snake.get(my_snake.size() - 1).y);
      my_snake.add(newPoint);
      //my_snake.remove(0);
    }
    //Want to go DOWN, but can't if going UP
    else if (direction == 40)
    {
      //System.out.println("Going DOWN");
      Point newPoint = new Point(my_snake.get(my_snake.size() - 1).x + 1,
                                 my_snake.get(my_snake.size() - 1).y);
      my_snake.add(newPoint);
      //my_snake.remove(0);
    }
    //Want to go LEFT, but can't if going RIGHT
    else if (direction == 37)
    {
      //System.out.println("Going LEFT");
      Point newPoint = new Point(my_snake.get(my_snake.size() - 1).x,
                                 my_snake.get(my_snake.size() - 1).y - 1);
      my_snake.add(newPoint);
      //my_snake.remove(0);
    }
    //Want to go RIGHT, but can't if going LEFT
    else if (direction == 39)
    {
      //System.out.println("Going RIGHT");
      Point newPoint = new Point(my_snake.get(my_snake.size() - 1).x,
                                 my_snake.get(my_snake.size() - 1).y + 1);
      my_snake.add(newPoint);
      //my_snake.remove(0);
    }
    else
    {
      skipit = false;
    }
    if (skipit)
    {
      if (my_panel.growMode())
      {
        if(my_panel.checkForLevelCompletion())
        {
          my_current_level++;
          if (my_current_level == 11)
          {
            JOptionPane.showMessageDialog(null, "Good job.  You beat the game.");
            my_current_level = 1;
          }
          
          my_timer.setDelay(my_timer.getDelay() - 80);
          
          newGame();
        }
       }
      else
      {
        my_snake.remove(0);
          
      }
      my_panel.updateSnake(my_snake);
      
      if (my_panel.isCollided())
      {
        //System.out.println("COLLIDED");
        gameOver();
      }
    }
  }
  private class MyTimer implements ActionListener
  {
    public void actionPerformed(final ActionEvent the_event)
    {
      moveSnake(my_snake_direction);
    }
  }
 
  private void gameOver()
  {
    my_timer.stop();
    //System.out.println("Game over");

    newGame();
    my_panel.resetCollided();    
  }
  
  private class Listener implements ActionListener
  {
    public void actionPerformed(final ActionEvent the_event)
    {
      final String the_action = the_event.getActionCommand();
 
      if (the_action.equals(my_menubar_game_newgame.getActionCommand()))
      {
        my_timer.setDelay(1000);

        my_current_level = 1;
        newGame();
      }
      else if (the_action.equals(my_menubar_game_quit.getActionCommand()))
      {
        System.exit(0);
      }
      else if (the_action.equals(my_menubar_help_rules.getActionCommand()))
      {
        JOptionPane.showMessageDialog(null,
            "Eric Sweeten\nSnake v1.0\n\n" + 
            "Keep the snake on the green.  Gather up all the food\n" +
            "(blue squares), and once all the food is gathered, you\n" +
            "pass the level.  There are 10 levels total.  Once you\n" + 
            "pass the 10th level, you beat the game.");
      }
      else if (the_action.equals(my_menubar_help_about.getActionCommand()))
      {
        JOptionPane.showMessageDialog(null, 
        "Eric Sweeten\nSnake v1.0\n\neric.sweeten@gmail.com");
      }
      else if (the_action.equals(my_menubar_game_pause.getActionCommand()))
      {
        togglePause();
      }
    }
  }
  private void togglePause()
  {
    if (my_timer.isRunning())
    {
      my_timer.stop();
    }
    else
    {
      my_timer.start();
    }
  }
}