/**
 * @(#) $RCSfile: MathPathRollerLoop.as,v $ $Revision: 1.3 $ $Date: 2003/02/17 01:09:49 $
 *
 * 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 for the MathPath roller sprite.
 *
 * @author      Olaf Havnes
 * @version     $Revision: 1.3 $ $Date: 2003/02/17 01:09:49 $
 * @since       SWFIT1.0
 */

_visible = true;

x += _parent.x_speed;
if (x > x1)
{
    _parent.tot_coins --;
    removeMovieClip ("");
}

/**
 * We roll along a cubic polygon. (Remember that a negative Y is up.)
 */
path_y = - ( 2 * x * x * x + x * x - x);

// Compute the Y-speed
v -= mg;
old_y = y;
y += v;

if (y > old_y) top = y;

// Should we make a sound ?
gap = path_y - y;
if (gap * gap < gap_size * gap_size && (top - y) > fall_size)
{
    tellTarget ("clink")
    {
        gotoAndPlay ("clink");
    }
}

// Are we below the path ?
if (y < path_y)
{
    y = path_y + gap;
    v = - v * fr;
    y_max = y;
    if (roto_step < max_roto) roto_step += roto_grow;
}

_x = /:SCALE_FACTOR_X * x;
_y = - /:SCALE_FACTOR_Y * y;

roll_g._rotation += roto_step;
roll_g._xscale = 100;
roll_g._yscale = 100;