/*
-----------------------------------------------------------------------------
This source file is part of OpenSpace3D
For the latest info, see http://www.openspace3d.com

Copyright (c) 2012 I-maginer

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser 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, or go to
http://www.gnu.org/copyleft/lesser.txt

-----------------------------------------------------------------------------
*/


fun deleteOb(inst)=
  0;;


fun cbInput(inst, from, action, param, rep, p) =
  let p -> [nb loop state] in
  (
    if ((state + 1) > nb) then
    (
      if (!loop) then nil else
      (
        mutate p <- [_ _ 1];
        SendPluginEvent inst "Out1" param rep;
      );
    )
    else
    (
      mutate p <- [_ _ (state + 1)];    
      SendPluginEvent inst (strcat "Out" itoa (state + 1)) param rep;
    );
  );
  0;;


fun cbInputRevert(inst, from, action, param, rep, p) =
  let p -> [nb loop state] in
  (
    if ((state - 1) <= 0) then
    (
      if (!loop) then nil else
      (
        mutate p <- [_ _ nb];
        SendPluginEvent inst (strcat "Out" (itoa nb)) param rep;
      );
    )
    else
    (
      mutate p <- [_ _ (state - 1)];    
      SendPluginEvent inst (strcat "Out" itoa (state - 1)) param rep;
    );
  );
  0;;


fun cbReset(inst, from, action, param, rep, p) =
  mutate p <- [_ _ 0];
  0;;


fun newOb(inst)=
  let atoi (getPluginInstanceParam inst "nb") -> nb in
  let atoi (getPluginInstanceParam inst "loop") -> loop in
  let if loop == nil then 1 else loop -> loop in
  let [nb loop 0] -> p in
  (
    PluginRegisterAction inst "Input" mkfun6 @cbInput p;
    PluginRegisterAction inst "Input revert" mkfun6 @cbInputRevert p;
    PluginRegisterAction inst "Reset" mkfun6 @cbReset p;
  );
  
  setPluginInstanceCbDel inst @deleteOb;
  0;;


fun IniPlug(file)=
  PlugRegister @newOb nil;
  setPluginEditor @dynamicedit;
  0;;