// Spider Class
// Spider.java

// Imports
import java.awt.*;
import java.applet.Applet;
import java.util.*;

public class Spider extends DirectionalSprite {
  // Spider action flags (extended sprite action flags, must be > 2)
  public static final int SA_ADDSPIDERCIDE = 5;
  public static Image[][] image;
  protected static Random rand = new Random(
    System.currentTimeMillis());

  /**Constructor*/
  public Spider(Component comp, Point pos) {
    super(comp, image, 0, 1, 2, pos, new Point(3, 3), 30,
      Sprite.BA_STOP, 4);
  }

  /** Initializes the images.*/
  public static void initResources(Applet app, MediaTracker tracker,
    int id) {
    image = new Image[8][2];
    for (int i = 0; i < 8; i++) {
      for (int j = 0; j < 2; j++) {
        image[i][j] = app.getImage(app.getCodeBase(),
          "Res/Tarant" + i + j + ".gif");
        tracker.addImage(image[i][j], id);
      }
    }
  }

  public BitSet update() {
    // Randomly change direction
    if ((rand.nextInt() % 7) == 0) {
      velocity.x = velocity.y = 3;
      setDirection((rand.nextInt() % 4) * 2);
    }

    if (direction == 7) {
      velocity.x = velocity.y = 2;
      setDirection(4);
    }

    if (WarMan.level == 2) {
      if (direction == 0)
        velocity.y = -2;
    }

    // Call parent's update()
    BitSet action = super.update();
    return action;
  }

  protected Sprite addSprite(BitSet action) {
    // Add spidercide?
    if (action.get(Spider.SA_ADDSPIDERCIDE))
      return new Spidercide(component, new Point(position.x,
        position.y));
    return null;
  }

  protected void setCollision() {
    collision = new Rectangle(position.x + 4, position.y + 4,
      position.width - 4, position.height - 4);
  }
}