/*
* Created on 19.Eki.2004
*
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*/

/**
* @author ZURGUN
*
* TODO To change the template for this generated type comment go to
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*/

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;

// the class hangman extends JApplet and implements ActionListener
public class Hangman extends JApplet implements ActionListener {

final int WON = 0, LOST = 1, CONTINUE = 2; // the variables are used in defining the game status

boolean no1Gate = false; // these variables are used to make sure that the if statement that
boolean no2Gate = false; // checks the random number enters the if statemenet only once.
boolean no3Gate = false; // In other words these variables are used to make sure that the
boolean no4Gate = false; // won counter is incremented only once even if it enters the "if" more than once

int gameStatus = CONTINUE; // game status declaration

int limbCounter = 5; // limb counter that'll be decremented if the player makes a wrong guess

int correctCounter = 0; // correct counter will be incremented if the player makes a correct guess

int randomNumber = 0; // initialization of the random number

int number1 ; // initialization of digits of the number to be guessed
int number2 ;
int number3 ;
int number4 ;

// GUI components that will be used
JLabel limbCount, randomLabel;
JTextField no1Field, no2Field, no3Field, no4Field, limbCountField, randomField;
JButton guessButton;


//set up GUI components and generate the random number that'll be guessed
public void init()
{
// obtain content pane and change its layout to Flowlayout
Container container = getContentPane();
container.setLayout(new FlowLayout());

// create label and text field for the GUI


no1Field = new JTextField(5);
no1Field.setEditable(false);
container.add(no1Field);
no1Field.setText("*");

no2Field = new JTextField(5);
no2Field.setEditable(false);
container.add(no2Field);
no2Field.setText("*");

no3Field = new JTextField(5);
no3Field.setEditable(false);
container.add(no3Field);
no3Field.setText("*");

no4Field = new JTextField(5);
no4Field.setEditable(false);
container.add(no4Field);
no4Field.setText("*");

guessButton = new JButton(" Guess Next Digit Randomly");
guessButton.addActionListener(this);
container.add(guessButton);

limbCount = new JLabel(" Limb Counter");
container.add(limbCount);
limbCountField = new JTextField(5);
limbCountField.setEditable(false);
limbCountField.setText(Integer.toString(5));
container.add(limbCountField);

randomLabel = new JLabel(" Your guess is:");
container.add(randomLabel);
randomField = new JTextField(5);
randomField.setEditable(false);
container.add(randomField);
randomField.setText("");

// generation of random numbers
number1 = 1 + (int)(Math.random()*9);
number2 = (int)(Math.random()*10);
number3 = (int)(Math.random()*10);
number4 = (int)(Math.random()*10);

// System.out.println("" + number1 + number2 + number3 + number4); ==> this can be used to trace the corecctness of the code from the execution console

} //end method init

// process one guess
public void actionPerformed(ActionEvent hangmanEvent){



randomNumber = randomGuess(); // call to the method randomGuess that generates a random number
// System.out.println("" + randomNumber); ==> this can be used to trace the correctness of the code


// check if the guess is correct and check if it is entered before. increment as needed

if (randomNumber == number1 || randomNumber == number2 || randomNumber == number3 || randomNumber == number4){

if(randomNumber == number1 && no1Gate == false){
gameStatus = CONTINUE;
no1Field.setText(Integer.toString(number1));
no1Gate = true;
correctCounter ++;
}

if(randomNumber == number2 && no2Gate == false){
gameStatus = CONTINUE;
no2Field.setText(Integer.toString(number2));
no2Gate = true;
correctCounter ++;
}

if(randomNumber == number3 && no3Gate == false){
gameStatus = CONTINUE;
no3Field.setText(Integer.toString(number3));
no3Gate = true;
correctCounter ++;
}

if(randomNumber == number4 && no4Gate == false){
gameStatus = CONTINUE;
no4Field.setText(Integer.toString(number4));
no4Gate = true;
correctCounter ++;
}}

// if a wrong guess is made decrement the limb counter.
else{
gameStatus = CONTINUE;
limbCounter --;
limbCountField.setText(Integer.toString(limbCounter));
}

// if limbcounter is zero game status is LOST
if(limbCounter == 0){
gameStatus = LOST;
}

// if correct counter is 4 game status is WON
if (correctCounter >= 4){
gameStatus = WON;
}

displayMessage(); // call method displayMessage


} //end of action performed

// display the according message looking at the game status
public void displayMessage(){
if(gameStatus == CONTINUE)
showStatus("Click 'Guess Next Digit Randomly' again to make a guess");
else{
if (gameStatus == WON){
showStatus("You won the game. Click 'Guess Next Digit Randomly' to play again");
restart(); // call to the method restart
}
else{
showStatus("You lost the game. Click 'Guess Next Digit Randomly' to play again");
restart(); // call to the method restart
}
}

} // end of display message

// the method rendomGuess generates a random number for the guess of the user
public int randomGuess(){

int x = (int) (Math.random()*10);
randomField.setText(Integer.toString(x)); // user sees what he guessed by the randomGuess
return x;
}// end of method randomGuess


// the method restart, restarts the game
public void restart(){

randomField.setText("");

no1Field.setText("*");
no2Field.setText("*");
no3Field.setText("*");
no4Field.setText("*");

correctCounter = 0;

limbCounter = 5;
limbCountField.setText(Integer.toString(5));

number1 = 1 + (int)(Math.random()*9);
number2 = (int)(Math.random()*10);
number3 = (int)(Math.random()*10);
number4 = (int)(Math.random()*10);

no1Gate = false;
no2Gate = false;
no3Gate = false;
no4Gate = false;

}

} // end of class Hangman