/**
 * @(#) $RCSfile: GroundLoop.as,v $ $Revision: 1.1 $ $Date: 2003/04/20 13:13:18 $
 *
 * 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 a ground generator - uses values from SmoothNoiseLoop.as.
 *
 * @author      Olaf Havnes
 * @version     $Revision: 1.1 $ $Date: 2003/04/20 13:13:18 $
 * @since       SWFIT1.0
 */

// We need to loop up a full landscape before we start.
if (do_init)
{
    do_init = false;

    while (clip_counter < NUM_CLIPS)
    {
        // Fetch another point from the noise function
        grid_counter ++;
        if (grid_counter >= GRID_SIZE)
        {
            grid_counter = 0;
            which_point++;
            if (which_point >= _level0.NOISE_NUM_POINTS) which_point = 0;
        }
        val_x = grid_counter / GRID_SIZE;

        // Get the pre-defined script.
        #include "../_scripts/SmoothNoiseLookup.as"
        val_y *= SCALE_FACTOR;

        // Which existing building block do we duplicate?
        duplicator = "level";
        if (val_y > prev_clip_y + STEP)
        {
            duplicator = "down";
            prev_clip_y += STEP;
        }
        else if (val_y < prev_clip_y - STEP)
        {
            duplicator = "up";
            prev_clip_y -= STEP;
        }

        clip_name = "clip_" add clip_counter;
        duplicateMovieClip (duplicator, clip_name, clip_counter);

        setProperty (clip_name, _x, clip_x);
        clip_x += step;
        setProperty (clip_name, _y, prev_clip_y);


        clip_counter++;
    }
    clip_counter--;

    clip_x -= step;
    _x -= clip_x;
}

// Reverse scroll this clip
_x -= 1;

// Take note of the scroll value,
clip_x++;

// Should we draw another piece?
step_counter++;
if (step_counter >= STEP)
{
    // Fetch another point from the noise function
    grid_counter ++;
    if (grid_counter >= GRID_SIZE)
    {
        grid_counter = 0;
        which_point++;
        if (which_point >= _level0.NOISE_NUM_POINTS) which_point = 0;
    }
    val_x = grid_counter / GRID_SIZE;

    // Get the pre-defined script.
    #include "../_scripts/SmoothNoiseLookup.as"
    val_y *= SCALE_FACTOR;

    // Which existing building block do we duplicate?
    duplicator = "level";
    if (val_y > prev_clip_y + STEP)
    {
        duplicator = "down";
        prev_clip_y += STEP;
    }
    else if (val_y < prev_clip_y - STEP)
    {
        duplicator = "up";
        prev_clip_y -= STEP;
    }

    clip_counter++;
    if (clip_counter >= NUM_CLIPS) clip_counter = 0;
    clip_name = "clip_" add clip_counter;
    duplicateMovieClip (duplicator, clip_name, clip_counter);

    setProperty (clip_name, _x, clip_x);
    setProperty (clip_name, _y, prev_clip_y);

    step_counter = 0;
}