public class Frame {

	// A frame has four int instance variables: [state, n, from, to]
	// see toString()
	
	// state: the state a Hanoi frame is in:
	// 0: initial state: no action performed
	// 1: "called" (pushed Frame really) hanoi(n-1, from, via)
	// 2: done, both "calls" performed
	private int state;
	
	// n: the size of the problem
	private int n;
	
	// from: source peg
	private int from;
	
	// to: destination peg
	private int to;

	public Frame(int n, int from, int to){
	this.state = 0;
	this.n = n;
	this.from = from;
	this.to = to; 
	}
	
	public int getN(){
		return n;
	}
	
	public int getFrom(){
		return from;
	}
	
	public int getTo(){
		return to;
	}
	
	public int getState(){
		return state;
	}
	
	public void setState(int s){
		state = s;
	}
	
	public String toString(){
		return "[" + state + "," + n + "," + from + "," + to + "]";
	}
		
}