import java.awt.*;
/*
 *----------------------------------------------------------------------
 *
 *	Tree.java
 */
/**
	The only thing that distinguish Trees from Obstacles is
  	that Trees has a sign attribute which is used to decide
	in which direction to deflect bullets.
 */
/*
 *----------------------------------------------------------------------
 */
public class Tree extends Obstacle {
  private float sign;
/*
 *----------------------------------------------------------------------
 *
 *	Tree
 */
/**
@param t texture with which the tree is drawn.
@param x x-coordinate
@param y y-coordinate
@param p the border of the tree.
 */
/*
 *----------------------------------------------------------------------
 */
  public Tree(Image t, int x, int y, Polygon p) {
    super(t, x, y, p);
    if((float)Math.random() > 0.5) {
      sign = 1;
    } else {
      sign = -1;
    }
  }
/*
 *----------------------------------------------------------------------
 *
 *	getSign
 */
/**
@return +1 or -1, which is decided in the constructor.
 */
/*
 *----------------------------------------------------------------------
 */
  public float getSign() {
    return sign;
  }
}