package example;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;

public class RaceGame implements ActionListener {
	// Interface Components
	JButton die1;
	JButton die2;
	JButton roll_Button;
	JButton rightDye;
	JButton right2ndDye;
	JLabel[] cell;
	JPanel raceTrack;
	JLabel mesg;

	boolean roll = true;
	int player1=0; // player1's position
	int player2=14; // player2's position
	
	int win =0; // no one has won yet
	int clicks =0; // no clicks have occurred yet
	int turnID = 1; // starts with it being player 1's turn

	/**
	 * Create the GUI and show it. Invoked from the event-dispatching thread for
	 * thread safety.
	 */
	private static void createAndShowGUI() {

		// Create and set up the window.
		JFrame frame = new JFrame("Race Game");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		Container cont = frame.getContentPane();

		RaceGame app = new RaceGame();
		app.init(cont);

		// Display the window.
		frame.pack();
		frame.setVisible(true);
	}

	public void init(Container cont) {
		
		die1 = new JButton("?"); // number needs to be determined by a roll
		die1.addActionListener(this);
		die2 = new JButton("?"); // number needs to be determined by a roll
		die2.addActionListener(this);
		
		roll_Button = new JButton("Roll");
		roll_Button.addActionListener(this);
		
		rightDye = new JButton("-"); // Number already used
		rightDye.addActionListener(this);
		right2ndDye = new JButton("-"); // Number not available
		right2ndDye.addActionListener(this);
	
		cont.setLayout(new BorderLayout());
		JPanel buttonRow = new JPanel();
		buttonRow.setLayout(new GridLayout(1, 0));

		// Add the buttons to form the player command row
		buttonRow.add(die1);
		buttonRow.add(die2);
		buttonRow.add(roll_Button);
		buttonRow.add(rightDye);
		buttonRow.add(right2ndDye);
		
		raceTrack = new JPanel(new GridLayout(3,5));
		
		raceTrack.setPreferredSize(new Dimension(320,175));
		raceTrack.setBackground(Color.LIGHT_GRAY);
		cell = new JLabel[15];
		for (int i=0; i<15; i++) {
			cell[i] = new JLabel(i+":", JLabel.CENTER);
			cell[i].setBorder(BorderFactory.createLineBorder(Color.black));
			raceTrack.add(cell[i]);
		}
		cell[0].setText("0:A"); // set initial position of player1
		cell[14].setText("14:B"); // set initial position of player2
		cont.add(raceTrack, BorderLayout.CENTER);
		cont.add(buttonRow, BorderLayout.SOUTH);
		
		mesg = new JLabel("Player 1, Press Roll To Start Race Game");
		cont.add(mesg, BorderLayout.NORTH);
	}

	public static void main(String[] args) {
		// Schedule App's GUI create & show for event-dispatching thread
		javax.swing.SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				createAndShowGUI();
			}
		});
	}

	public void actionPerformed(ActionEvent ae) {
		// Find which button was pressed
		JButton b = (JButton) ae.getSource();
		
		if (b.getText().contains("?") || b.getText().contains("-"))
			return; // a number button which does not hold a valid number
		
		if (b == roll_Button) { // roll button pressed
			if (roll == true) { // create new roll
				if (turnID == 1) { // hard coded numbers - change to use random
					die1.setText("1");
					die2.setText("4");
					mesg.setText("Player 1, click a number on the left");
					roll=false;
				} else { // hard coded numbers - change to use random
					rightDye.setText("4");
					right2ndDye.setText("1");
					mesg.setText("Player 2, click a number on the right");
					roll=false;
				}
			}
			return;
		}
		
		int n;
		// Die buttons for player 1
		if (b== die1) { // use number of this die for move
			n = Integer.valueOf(die1.getText());
			die1.setText("-"); // number no longer available
			clicks++;
			// move player and update the board
			cell[player1].setText(player1+":");
			player1+=n;
			if (player1>14) player1 = 14;
			cell[player1].setText(player1+":A");
		}
		
		if (b== die2) {
			n = Integer.valueOf(die2.getText());
			die2.setText("-");
			clicks++;
			// update current position to remove player token
			cell[player1].setText(player1+":");
			player1+=n; // player position is updated
			if (player1 > 14) player1 = 14;
			cell[player1].setText(player1+":A");
		}
		
		// Die buttons for player2
		if (b== rightDye) { // number selected comes from right dye
			n = Integer.valueOf(rightDye.getText());
			rightDye.setText("-"); // mark number as used
			clicks++; 
			// remove token from old position and move to new position
			cell[player2].setText(player2+":");
			if (player2 > 0) player2-=n;
			cell[player2].setText(player2+":B");
		}
		
		if (b== right2ndDye) {
			n = Integer.valueOf(right2ndDye.getText());
			right2ndDye.setText("-");
			clicks++;
			cell[player2].setText(player2+":");
			if (player2 > 0) player2-=n;
			cell[player2].setText(player2+":B");
		}
		
		// Determine if anyone has won yet
		if (player1>=14) win = 1;
		else if (player2<=0) win = 2;
		
		// Determine if time to roll again
		if (clicks ==2) { // after 2 clicks time to roll again
			if (turnID == 1) {
				turnID = 2;
				roll = true;
				rightDye.setText("?");
				right2ndDye.setText("?");
			} else {
				turnID = 1;
				roll = true;
				die1.setText("?");
				die2.setText("?");
			}
			
			clicks = 0;
			if (win == 0)
				mesg.setText("Player " + turnID + ", Time to hit Roll again");
			else if (win == 1)
				mesg.setText("Player 1 Wins!");
			else
				mesg.setText("player 2 Wins!");
		}
		
	} // end of actionPerformed method
}