/*Robert Jarvis
 * CGS3416-1
 * Assignment 3 part 2
 */

import java.util.Scanner; //Import Scanner class to accept user input
import java.util.Random; //Import Random class to create random dice rolls

public class Dice {

    static Random r1 = new Random(); //Random object created outside of method blocks and static so both methods can use them

    public static void main (String[] args){

        Scanner input = new Scanner(System.in); //Variable to accept scanner input
        int timesRolled; //Amount of times the dice are to be rolled
        int snakeEyes = 0; //Counter to count the amount of times double 1s is rolled
        int seven = 0; //Counter to count the amount of times 7 is rolled
        int counter = 0; //Counter for amount of times dice are rolled

        System.out.print("How many times would you like to roll the two dice? "); //Displays prompt for input
            timesRolled = input.nextInt();

        while(counter++ < timesRolled){  //While loop to loop and count amount of times dice are rolled/snake eyes and sevens are rolled
            int dieTotal = rollDice(); //Creating variable from rollDice method
                if(dieTotal == 2){
                    snakeEyes++;}
                else if(dieTotal == 7){
                    seven++;}
            }


        double percentSnake = (snakeEyes/timesRolled); //Variables for the percentage of rolls these special cases make up
        double percentSeven = (seven/timesRolled);


        System.out.println("\nSnake eyes (double 1s) appeared"); //Begin output of program
        System.out.printf("   " + snakeEyes + " times\n");
        System.out.printf("   %.2f %% of the time\n", percentSnake);
        System.out.println("\nA roll of 7 appeared");
        System.out.printf("   " + seven + " times\n");
        System.out.printf("   %.2f %% of the time", percentSeven);
        }

    public static int rollDice(){ //Method for rolling dice
        int die1 = r1.nextInt(7) + 1; //Die1 is a random number 1-6
        int die2 = r1.nextInt(7) + 1; //Die2 is a random number 1-6
        int dieTotal = die1 + die2; //dieTotal is the combination of these numbers
        return dieTotal;        //Returns dieTotal
    }
}