//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//NHL Shootout
//Description: Simulates an ice hockey shootout based on goaltender save
//	percentages.
//CS 284
//Programmed by Jonathan Voris
//for 1/24/06
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

//for keyboard input
import java.util.Scanner;

class shootout
{
	//create a new scanner for reading keyboard input
	static Scanner sc = new Scanner(System.in);

	//create static variables for goalie save percentages. stats found at:
	//http://www.nhl.com/nhlstats/stats?service=direct&context=Home/reportBuilder.shootoutGoaliesLink
	static double BrodeurSavePercentage = .87;
	static double LundqvistSavePercentage = .821;

	//The score function takes a goalie's save percentage and the
	//shooting team name. It then outputs a score or miss to the
	//console and returns true for a score and false for a miss.
	public static boolean score(double savePercentage, String team)
	{
		//generate a random number and compare it to the defending
		//goalie's save percentage
		if (Math.random() >= savePercentage)
		{
			System.out.println(team + " score!");
			return true;
		}
		else
		{
			System.out.println("No luck for the " + team);
			return false;
		}
	}

	public static void main(String[] args)
	{
		//get number of rounds from the user
		System.out.print("How many rounds did the shoot out last?");
		int round = sc.nextInt();
		//determine who won the shootout
		whoWon(round, 0, 0);
	}

	//whoWon accepts three integers as input - the number of rounds remaining
	//in the shootout, the score for the first team, and the score for the second
	//team. It then determines the winner of the shootout by simulating a round
	//and recursively calling itself.
	public static void whoWon(int round, int DevilsScore, int RangersScore)
	{
		//Base Case - Shootouts start with each team alterating three shots
		//regardless of their outcome. Therefore, if whoWon is called with
		//a round input of 3 or less, it runs three rounds and
		//returns the winner.
		if (round <= 3)
		{
			//loop once for each manditory round
			for (int s = 1; s < 4; s++)
			{
				//if the Devils score, give them a point
				if (score(LundqvistSavePercentage, "Devils"))
				{
					DevilsScore++;
				}
				//if the Rangers score, give them a point
				if (score(BrodeurSavePercentage, "Rangers"))
				{
					RangersScore++;
				}
			}

			//output the outcome of the shootout based on the team's respective scores
			if (DevilsScore > RangersScore)
			{
				System.out.println("The Devils Win!");
			}
			else if (DevilsScore < RangersScore)
			{
				System.out.println("The Rangers Win!");
			}
			else
			{
				System.out.println("It was still a tie after those rounds.");
			}
		}
		//Recursion - Shootouts continue until one team has scored more goals than the
		//other. Therefore, if whoWon is called with a round input of 4 or more,
		//it performs a round, decrements it, and recursively calls itself.
		else
		{
			//if the Devils score, give them a point
			if (score(LundqvistSavePercentage, "Devils"))
			{
				DevilsScore++;
			}
			//if the Rangers score, give them a point
			if (score(BrodeurSavePercentage, "Rangers"))
			{
				RangersScore++;
			}

			//recursive call
			whoWon(round-1, DevilsScore, RangersScore);
		}
	}
}