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package horstmann.ch06_scene1;
import java.awt.Graphics2D;
import java.awt.geom.Line2D;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;

/**
   A house shape.
 */
public class HouseShape extends SelectableShape
{
  /**
      Constructs a house shape.
      @param x the left of the bounding rectangle
      @param y the top of the bounding rectangle
      @param width the width of the bounding rectangle
   */
  public HouseShape(int x, int y, int width)
  {
    this.x = x;
    this.y = y;
    this.width = width;
  }

  public void draw(Graphics2D g2)
  {
    Rectangle2D.Double base
    = new Rectangle2D.Double(x, y + width, width, width);

    // The left bottom of the roof
    Point2D.Double r1
    = new Point2D.Double(x, y + width);
    // The top of the roof
    Point2D.Double r2
    = new Point2D.Double(x + width / 2, y);
    // The right bottom of the roof
    Point2D.Double r3
    = new Point2D.Double(x + width, y + width);

    Line2D.Double roofLeft
    = new Line2D.Double(r1, r2);
    Line2D.Double roofRight
    = new Line2D.Double(r2, r3);

    g2.draw(base);
    g2.draw(roofLeft);
    g2.draw(roofRight);
  }

  public void drawSelection(Graphics2D g2)
  {
    Rectangle2D.Double base
    = new Rectangle2D.Double(x, y + width, width, width);
    g2.fill(base);
  }

  public boolean contains(Point2D p)
  {
    return x <= p.getX() && p.getX() <= x + width
        && y <= p.getY() && p.getY() <= y + 2 * width;
  }

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

  private int x;
  private int y;
  private int width;
}