/* mPoint.java */

import java.awt.*;

public class mPoint {
  int x, y;
  Color color = Color.black;
  public mPoint(int _x, int _y) {
    /* initial location */
    x = _x;
    y = _y;
  }
  public void setColor(Color _color) { color = _color;}
  public void setColor(Graphics g, Color _color) {
    if ( _color == color ) return;
    paint(g);   /* use XOR to hide object */
    color = _color;
    paint(g);   /* draw object on new location */
  }
  /* check if position inside object */
  public boolean isInside(int _x, int _y) {
    return (x == _x) && (y == _y);
  }
  /* move object */
  public void moveTo(Graphics g, int _x, int _y) {
    if ( (x == _x) && (y == _y) ) return;
    paint(g);   /* use XOR to hide object */
    x = _x;     /* update location */
    y = _y;
    paint(g);   /* draw object on new location */
  }
  public void move(Graphics g, int dx, int dy) {
    if ( (dx == 0) && (dy == 0) ) return;
    paint(g);   /* use XOR to hide object */
    x += dx;     /* update location */
    y += dy;
    paint(g);   /* draw object on new location */
  }
  public void paint(Graphics g) {}
}