// Marty Stepp, CSE 142, Autumn 2008
// This file defines a new class of objects named Point.
//
// All the code in the class's {} braces represents what contents
// should be replicated inside of each Point object.  This includes the methods
// written today: each Point object has a copy of each method that can access
// that Point object's fields.
//

import java.awt.*;  // for Graphics

public class Point {
	int x;    // EACH Point object should have a variable
	int y;    // inside it named x, and a variable named y
	
	// Draws a point on a DrawingPanel.
	public void draw(Graphics g) {
		g.fillOval(x, y, 3, 3);
		g.drawString("(" + x + ", " + y + ")", x, y);
	}
	
	// Shifts the point's x/y coordinates by the given amounts.
	public void translate(int dx, int dy) {
		x += dx;
		y += dy;    // or, setLocation(x + dx, y + dy);
	}
	
	// Sets the point's x/y coordinates to be the given values.
	public void setLocation(int newX, int newY) {
		x = newX;
		y = newY;
	}
	
	// Computes the distance between this point and the given other point p2.
	public double distance(Point p2) {
		int dx = x - p2.x;
		int dy = y - p2.y;
		double distance = Math.sqrt(dx*dx + dy*dy);
		return distance;
	}
	
	// Computes the distance between this point and the origin (0, 0).
	public double distanceFromOrigin() {
		Point origin = new Point();  // 0, 0
		return distance(origin);
	}
}