/**
 * @(#) $RCSfile: StarryStarryNightLoop.as,v $ $Revision: 1.2 $ $Date: 2003/03/03 05:15:49 $
 *
 * Copyright 2003 Orgdot AS. All Rights Reserved.
 * http://dev.swfit.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

/**
 * Loop script for a single animated star.
 *
 * @author      Olaf Havnes
 * @version     $Revision: 1.2 $ $Date: 2003/03/03 05:15:49 $
 * @since       SWFIT1.0
 */

/**
 * Iterating algorithm based on the double angle formulas.
 */

s_2 = s_0 + 2 * s * c_1;
c_2 = c_0 - 2 * s * s_1;

s_0 = s_1;
c_0 = c_1;

s_1 = s_2;
c_1 = c_2;

life ++;

if (life < incubate)
{
    y -= INCUBATE_SPEED;
}
else if (life < sparkle)
{
    y -= SPARKLE_SPEED;
    birth._visible = true;
    growth._visible = false;
    death._visible = false;
}
else if (life < GLOW)
{
    y -= GLOW_SPEED;
    birth._visible = false;
    growth._visible = true;
    death._visible = false;
}
else if (life < FADE)
{
    y -= FADE_SPEED;
    birth._visible = false;
    growth._visible = false;
    death._visible = true;    
}
else
{
    removeMovieClip ("");
}


if (reverse_dir)
{
    _x = int (x + s_2);
    _y = int (y + c_2 / AMPLITUDE_Y_DIVISOR);
}
else
{
    _x = int (x + c_2);
    _y = int (y + s_2 / AMPLITUDE_Y_DIVISOR);
}