// Helene Martin, CSE 142
// Blueprint for creating objects of type Point
// Final version is encapsulated -- clients can't directly access x and y

public class Point {
	private int x;
	private int y;
	
	// builds a Point at given x and y coordinates
	public Point(int x, int y) {
		this.x = x; // many Java developers use this notation
		this.y = y; // in the constructor
	}
	
	// builds a Point at (0, 0)
	public Point() {
		this(0, 0); // call another constructor using this
	}
	
	// returns x coordinate
	public int getX() {
		return x;
	}	
	
	// returns y coordinate
	public int getY() {
		return y;
	}
	
	// sets x coordinate
	public void setX(int x) {
		this.x = x;
	}
	
	// sets y coordinate
	public void setY(int y) {
		this.y = y;
	}

	// returns distance between this Point and an other Point
	public double distance(Point other) {
		return Math.sqrt(Math.pow(x - other.x, 2) + 
							  Math.pow(y - other.y, 2));
	}
	
	// returns distance between this Point and the origin
	public double distanceFromOrigin() {
		return Math.sqrt(x * x + y * y);
	}
	
	// moves a point by dx, dy
	public void translate(int dx, int dy) {
		x = x + dx;
		y = y + dy;
	}
	
	// returns String representation of this Point
	public String toString() {
		return "(" + x + ", " + y + ")";	
	}	
}