/**
 * @(#) $RCSfile: FlipperPieceLoop.as,v $ $Revision: 1.4 $ $Date: 2003/03/20 14:13:06 $
 *
 * 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 for each flipper piece.
 *
 * @author      Olaf Havnes
 * @version     $Revision: 1.4 $ $Date: 2003/03/20 14:13:06 $
 * @since       SWFIT1.0
 */

// Means a button has been pressed
if (pos != pos_old)
{
    if (pos < pos_old) 
    {
        // Go there directly
        move_state = STATE_RESTING;
    }
    else
    {
        // Make sure we never go down without passing the top point.
        move_state = STATE_RISING;
    }
    pos_old = pos;
}

// Make sure we go beyond the endpoints of the conveyor belt
if (move_state == STATE_RISING)
{
    p1 = _parent.start_y;
    v += (p1 - p0) * RISE_AC - v * RISE_FR;
    p0 += v;
    _y = p0;

    moving = true;

    if (p0 <= _parent.start_y + 1)
    {
        move_state = STATE_FALLING;
    }
}
else if (move_state == STATE_FALLING)
{
    p1 = _parent.end_y;
    v += (p1 - p0) * FALL_AC - v * FALL_FR;
    p0 += v;
    _y = p0;

    moving = true;

    if (p0 >= _parent.end_y - 1)
    {
        move_state = STATE_RESTING;
    }

}
else
{
    p1 = eval ("../:pos_" add pos); 
    v += (p1 - p0) * REST_AC - v * REST_FR;
    p0 += v;

    if (v * v < 0.5)
    {
        moving = false;
    }
    else
    {
        _y = int (p0);
        moving = true;
    }
}

// Make the button inactive when we are the current selected clip.
button._visible = _parent.current != which;