import java.util.Scanner;
public class HiLo
{
    private static int p1points = 1000;
    private static int p2points = 1000;
    private static int counter = 0;
    private static String name;
    private static String name2;
    public static void main (String [] args)
    {
        Scanner input = new Scanner (System.in);
        rules();

    }

    public static void rules()
    {
        Scanner input = new Scanner (System.in);
        System.out.println("High Low Game");
        System.out.println("");
        System.out.println("RULES");
        System.out.println("Number 1 through 6 are low");
        System.out.println("Number 8 through 13 are high");
        System.out.println("Number 7 is neither high nor low");
        System.out.println("");

        System.out.println("Enter player one name: ");
        String name = input.next();
        System.out.println(name + " has 1000 points");
        System.out.println("");
        System.out.println("Enter player two name: ");
        String name2 = input.next();
        System.out.println(name2 + " has 1000 points");
        isRisk();
    }

    public static void isRisk()
    {

        if(counter % 2 == 0)
        {
            Scanner input = new Scanner (System.in);
            System.out.println(name + " Enter points to risk: ");
            int risk = input.nextInt();
            System.out.println("");
            System.out.println("Predict (1=High, 0=Low): ");
            int guess = input.nextInt();
            if(guess == 1)
            {
                calcHigh(risk);
            }
            if(guess == 0)
            {
                calcLow(risk);
            }
        }
        else
        {
            Scanner input = new Scanner (System.in);
            System.out.println(name2 + " Enter points to risk: ");
            int risk = input.nextInt();
            System.out.println("");
            System.out.println("Predict (1=High, 0=Low): ");
            int guess = input.nextInt();
            if(guess == 1)
            {
                calcHigh(risk);
            }
            if(guess == 0)
            {
                calcLow(risk);
            }
        }
    }

    public static void calcHigh(int risk)
    {
        Scanner input = new Scanner (System.in);
        int ranum = (int)(13*Math.random()+1);
        int sentinel = 0;
        if(counter % 2 == 0)
        {
            do
            {
                if(ranum > 7)
                {
                    risk = risk*2;
                    p1points = p1points + risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Correct. Your point total is: " + p1points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }

                }
                if(ranum < 7)
                {
                    p1points = p1points - risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Incorrect. Your point total is: " + p1points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }
                }
                if(ranum == 7)
                {
                    p1points = p1points - risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Unlucky seven. Your point total is: " + p1points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }
                }
                counter++;
                isRisk();
            }while (sentinel !=1 || p1points > 4000 || p1points <= 0);
        }
        else
        {
            do
            {
                if(ranum > 7)
                {
                    risk = risk*2;
                    p2points = p2points + risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Correct. Your point total is: " + p2points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }

                }
                if(ranum < 7)
                {
                    p2points = p2points - risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Incorrect. Your point total is: " + p2points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }
                }
                if(ranum == 7)
                {
                    p2points = p2points - risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Unlucky seven. Your point total is: " + p2points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }
                }
                counter++;
                isRisk();
            }while (sentinel !=1 || p2points > 4000 || p2points <= 0);
        }
    }

    public static void calcLow(int risk)
    {
        Scanner input = new Scanner (System.in);
        int ranum = (int)(13*Math.random()+1);
        int sentinel =0;
        if(counter % 2 == 0)
        {
            do
            {
                if(ranum > 7)
                {
                    p1points = p1points - risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Incorrect.  Your point total is: " + p1points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }
                }
                if(ranum < 7)
                {
                    risk = risk*2;
                    p1points = p1points + risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Correct.  Your point total is: " + p1points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }
                }
                if(ranum == 7)
                {
                    p1points = p1points - risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Unlucky seven. Your point total is: " + p1points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }
                }
                counter++;
                isRisk();
            }while (sentinel !=1 || p1points > 4000 || p1points <= 0);
        }

        else
        {
            do
            {
                if(ranum > 7)
                {
                    p2points = p2points - risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Incorrect.  Your point total is: " + p1points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }
                }
                if(ranum < 7)
                {
                    risk = risk*2;
                    p2points = p2points + risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Correct.  Your point total is: " + p2points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }
                }
                if(ranum == 7)
                {
                    p2points = p2points - risk;
                    System.out.println("The number is " + ranum);
                    System.out.println("Unlucky seven. Your point total is: " + p2points);
                    System.out.print("Play again? (Press 0 for yes 1 for no): ");
                    int response = input.nextInt();
                    if(response == 1)
                    {
                        sentinel = 1;
                    }
                }
                counter++;
                isRisk();
            }while (sentinel !=1 || p2points > 4000 || p2points <= 0);
        }
    }
}