battleship

var randomLoc = Math.floor(Math.random() * 5);
var location1 = randomLoc;
var location2 = location1 + 1;
var location3 = location1 + 2;
var guess;
var hits = 0;
var guesses = 0;
var isSunk = false;

while (isSunk == false) {
	guess = prompt("Ready, aim, fire! (enter a number from 0-6):");
	if (guess < 0 || guess > 6) {
		alert("Please enter a valid cell number!");
	} else {
		guesses = guesses + 1;
		if (guess == location1 || guess == location2 || guess == location3) {
			hits = hits + 1;
			alert("HIT!");
			if (hits == 3) {
				isSunk = true;
				alert("You sank my battleship!");
			}
		} else {
			alert("MISS!");
		}
	}
}

var stats = "You took " + guesses + " guesses to sink the battleship, " + "which means your shooting accuracy was " + Math.floor(3/guesses*100) + "%";
alert(stats);