BlueFadeTotalLoop Actionscript

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RCSfile: BlueFadeTotalLoop.as,v Revision: 1.2 Date: 2003/02/27 23:25:55

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.

Keeps track of the roller movements.
author      Olaf Havnes
version     Revision: 1.2 Date: 2003/02/27 23:25:55
since       SWFIT1.0

Should we start the roller ?

if (stage == END_STAGE || stage == ROLL_STAGE)
{
   d = Y_REST - yp;
   y_speed += spring * d - friction * y_speed;
   yp += y_speed;

   if (stage == ROLL_STAGE)
   {
       if (y < Y_REST)
       {

First time we pass the rest point we go to the end stage

           stage = END_STAGE;
           end_counter = 0;
       }
   }
   else if (stage == END_STAGE)
   {

Finish the bounce in the roller

       end_counter++;
       if (end_counter > END_STEPS)
       {
           yp = Y_REST;
           stage = REST_STAGE;
           /:do_roll = false;
       }
   }
}
else if (stage == WAIT_STAGE)
{
   wait_counter ++;
   if (wait_counter > WAIT_STEPS)
   {
       stage = ROLL_STAGE;
       y_speed = ROLL_SPEED_START;
   }
}
else if (stage == WIND_STAGE)
{
   yp += WIND_SPEED;
   if (yp > Y_WIND)
   {
       stage = WAIT_STAGE;
       wait_counter = 0;
   }
}
else if (stage == REST_STAGE)
{
   if (/:do_roll)
   {
       stage = WIND_STAGE;
   }
}

Move the roller

y = int (yp);
roller._y = y;

Move the gradient

if (stage == WIND_STAGE)
{
   grad._y = y;
   grad._visible = true;
}
else
{
   grad._visible = false;
}