// CS7 - Solution to RPS
// Spring 2004
//
// This program plays Rock, Paper, Scissors with the user.  It asks how
// long of a match is desired, and then plays until a majority of those
// games are won.  For example, a 5 game match is over when either player
// (the person or the computer) reaches 3 wins.  The user's win/loss record
// is displayed after each game.
//
// Game choices are represented by integers, but constants are available 
// to make the code more readable.  The computer's choice is determined
// randomly.
 

import tio.*;    // using JBD's input package

class rps1 {

	// Constants for all to use
	static final int ROCK = 1;
	static final int PAPER = 2;
	static final int SCISSORS = 3;

	// the main steps of the algorithm are in main(), with methods handling
	// most of the details
	public static void main(String [] args) {
		
		int userChoice, compChoice;   // the "hands" of each player
			
		// get the two picks and display them
		userChoice = getUserChoice();
		compChoice = getCompChoice();
		System.out.print("Your choice: ");
		printGameChoice(userChoice);
		System.out.print("Compuer choice: ");
		printGameChoice(compChoice);

	}

	// ask the user for a game choice
	static int getUserChoice() {
		System.out.print("Enter (1) for Rock, (2) for Paper, or (3) for Scissors: ");
		int choice = Console.in.readInt();
		while (choice < 1 || choice > 3) {
			System.out.println("Try again: ");
			choice = Console.in.readInt();
		}
		return choice;
	}

	// returns a random number between 1 and 3 for the three possible choices
	static int getCompChoice() {
		return (int)(Math.random() * 3) + 1;
	}

	// prints a choice on the screen (as a string)
	static void printGameChoice(int c) {
		switch (c) {
			case ROCK:  
				System.out.println("Rock");
				break;
			case PAPER:
				System.out.println("Paper");
				break;
			case SCISSORS:
				System.out.println("Scissors");
				break;
			default:
				System.out.println("!!");
		}
	}

}