public class Ps1Defs
{
  /*
   * DIRECTIONAL CONSTANTS
   */
  public static final int STILL = 0;
  public static final int LEFT = 1;
  public static final int UP_LEFT = 2;
  public static final int UP  = 3;
  public static final int UP_RIGHT = 4;
  public static final int RIGHT = 5;
  public static final int DOWN_RIGHT = 6;
  public static final int DOWN = 7;
  public static final int DOWN_LEFT = 8;

  /*
   * UTILITY METHODS
   */
  public static final boolean IsPixelTransparent(int pixel)
  {
    return ((pixel >> 24) == 0);
  }    
}