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// From JAVA PROGRAMMING: FROM THE BEGINNING, by K. N. King //

// Copyright (c) 2000 W. W. Norton & Company, Inc.          //

// All rights reserved.                                     //

// This program may be freely distributed for class use,    //

// provided that this copyright notice is retained.         //

//                                                          //

// Shape.java (Chapter 11, page 462)                        //

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// Represents a geometric shape that can be displayed in a

// graphics context


import java.awt.*;


public abstract class Shape {
  // Instance variables

  private int x;
  private int y;
  private Color color;

  // Constructor

  protected Shape(int x, int y, Color color) {
    this.x = x;
    this.y = y;
    this.color = color;
  }

  // Abstract methods

  public abstract void draw(Graphics g);
  public abstract int getHeight();
  public abstract int getWidth();

  // Other instance methods

  public Color getColor() {
    return color;
  }

  public int getX() {
    return x;
  }

  public int getY() {
    return y;
  }

  public void move(int dx, int dy) {
    x += dx;
    y += dy;
  }

  public void setColor(Color color) {
    this.color = color;
  }
}