pizzaGuess.html

<script>
	//initialize variables
	var toppings=['sausage','pepper','onion','octopus','mushroom','olive','tomato','pepperoni'];
	var toppingString='sausage\npepper\nonion\noctopus\nmushroom\nolive\ntomato\npepperoni\n'
	var answer=[];
	//for loop selects random toppings to add to 'answer'
	for (var i=0; i<toppings.length;i++){
		x=Math.round(Math.random());
		if (x==1){
			answer.push(toppings[i]);
		}
	}
	var running=true
	var correct = false
	var guessesRemaining=10
	//This is the introductory line1. It will change in future prompts based on the previous guess
	var line1='Guess what toppings I want on my pizza! The options are below.\nI may like none of them, all of them, or anything between!\nInput your guess with the toppings separated by single spaces.';
	var line2='Guesses Remaining: '+guessesRemaining;
	//this function turns a string into a list, with each element one of the words separated by spaces
	function splitter(s){
		var start=0;
		var result=[];
		var n=0;
		while (n>-1){
			n = s.indexOf(' ', start);
			if (n!=-1){
				result.push(s.substring(start,n));
			}
			else{
				result.push(s.substring(start));
			}
			start=n+1;
		}
		return result;
	}
	//this function can check if there i a wrong topping or a missing topping
	function wrongTopping(a,b){
		found=false
		for(var i=0;i<a.length;i++){
			if (b.indexOf(a[i])==-1){
				found=true
			}
		}
		return found
	}


	var solved=false
	//event handling loop
	while (running==true){
		//checks if it has been solved, and closes if so
		if (solved){
			alert('That\'s the pizza I wanted! You win.');
			running=false;
		}
		//checks if the player has run out of guesses, and closes if so
		else if (guessesRemaining==0){
			alert('You ran out of guesses! You couldn\'n guess what pizza I like.\n We\'re not friends anymore');
			running=false;
		}
		else{
			//asks for guess and uses splitter function to turn it into a list
			var guess=prompt(line1+'\n'+toppingString+'\n'+line2);
			guess=splitter(guess);
			//checks for wrong toppings
			if (wrongTopping(guess, answer)){
				line1='There\'s something on that I don\'t like!'
			}
			//if there are no wrong toppings, checks for missing toppings
			else if (wrongTopping(answer, guess)){
				line1='You\'re missing a topping that I want!'
			}
			else{
				solved=true
			}
			guessesRemaining-=1
			line2="Guesses Remaining: "+guessesRemaining
		}
	}
</script>