package object_oriented;

import java.util.*;

public class Hangman
{
 Scanner keyboard = new Scanner(System.in);
 Random rand = new Random();

 // The following routine will determine if the character c
 // is inside the String str. A true is returned if it is inside.
 // It is very useful to call the isIn routine inside of printCurrStatus...
 // See the comments in the Hint for printCurrStatus.

 boolean checkGuess(String strToGuess, String playerGuess)
 {
	 if (strToGuess.equals(playerGuess))
		{
			return true;
		}
		else return false;
 }

// ****** printCurrStatus
 // If userInputs contains "ard" and strToGuess contains "aardvark" then
 // the following routine prints out an output that looks something like:
 //
 // Current Status for userInpts=ard
 // a a r d _ a r _

 // This routine returns true if all letters were guessed, otherwise false is returned.
// HINT: It is useful to have a for loop that goes through each of the characters in
// strToGuess. Call isIn for each character (note the second parameter would
// be userInputs). If isIn returns true, just print out the character, if isIn
// returns false, then print out '_'.
// Additionally, you can have a variable like:
// boolean success = true;
// Whenever you output at least one '_', you can set success = false.
// Your code can just return the variable "success" and it will return true if
// the user has picked all of the letters.

 String printCurrStatus(String strToGuess, String userInputs)
 {
	char c;
	char[] output = new char[strToGuess.length()];

	for(int k = 0; k < strToGuess.length(); k++)
	{
		output[k] = '_';
	}
	for(int j = 0; j < userInputs.length(); j++)
	{
		c = userInputs.charAt(j);
		for (int i = -1; (i = strToGuess.indexOf(c, i + 1)) != -1; i++)
		{
			output[i] = c;
		}
	}
	String playerGuess = new String(output);
	return playerGuess;
 }

 // The following routine will return a random String from the list of words:
 // elephant, tiger, monkey, baboon, barbeque, giraffe, simple, zebra,
 // porcupine, aardvark

 String getNextWordToGuess()
 {
 final int num_words=10; // change this if you have a different number of words
 int num = rand.nextInt(num_words);
 // Another way to accomplish the same thing:
 // int num = (int)(num_words* Math.random());
 //********** Fill in Details
 String word = null;
 switch(num)
 {
 case 1: word = "elephant"; break;
 case 2: word = "tiger"; break;
 case 3: word = "monkey"; break;
 case 4: word = "baboon"; break;
 case 5: word = "giraffe"; break;
 case 6: word = "simple"; break;
 case 7: word = "zebra"; break;
 case 8: word = "porcupine"; break;
 case 9: word = "aardvark"; break;
 case 10: word = "banana"; break;
 }
 word = "check";
 return word;
 }
 // The following routine plays the hangman game. It calls getNextWordToGuess to
 // get the word that should be guessed. It then has a loop which outputs the
 // following prompt:
 // Enter next letter
 //
 // A String named userInputs stores all letters selected already.
 // Then the routine printCurrStatus is called to print out the current status of
 // the guessed word. If printCurrStatus returns true, we are done.

 void playGame()
 {
	boolean playing = true;
	String word = null, userInputs = "_", guessed = null;
	word = getNextWordToGuess();
	while(playing)
	{
		if(checkGuess(word, guessed))
		{
			break;
		}
		guessed = printCurrStatus(word, userInputs);
		System.out.println(guessed);
		userInputs += keyboard.nextLine();
	}
 }
 // main will call playGame to play the hangman game.
 // Then main will issue the prompt:
 // Do you want to play again (y or n)
 // If the answer is "y", then call playGame again, otherwise exit

 public static void main(String[] args)
 {
 Hangman hangman = new Hangman();

 String response="";
 do
 {
 hangman.playGame();
 System.out.print("Do you want to play object oriented Hangman again? (y or n): ");
 response = hangman.keyboard.next();
 } while (response.charAt(0) == 'y');

 System.out.println("Bye");
 }
}