/*
   orxonox - the future of 3D-vertical-scrollers

   Copyright (C) 2004 orx

   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, or (at your option)
   any later version.

   ### File Specific:
   main-programmer: Andreas Maechler, David Hasenfratz
   co-programmer: ...
*/

#include "atmospheric_engine.h"

#include "weather_effects/fog_effect.h"

#include "util/loading/load_param_xml.h"
#include "util/loading/factory.h"

ObjectListDefinition(AtmosphericEngine);

/**
 * @param root The XML-element to load the AtmosphericEngine from
 */
AtmosphericEngine::AtmosphericEngine()
{
  this->registerObject(this, AtmosphericEngine::_objectList);
}

/**
 *  The Pointer to this AtmosphericEngine
*/
AtmosphericEngine* AtmosphericEngine::singletonRef = NULL;


/**
 *  destroys a AtmosphericEngine
 */
AtmosphericEngine::~AtmosphericEngine()
{
  AtmosphericEngine::singletonRef = NULL;

  while(!WeatherEffect::objectList().empty())
    delete WeatherEffect::objectList().front();
}

/**
 * @param root The XML-element to load the AtmosphericEngine from
 */
void AtmosphericEngine::loadParams(const TiXmlElement* root)
{
  LoadParamXML(root, "WeatherEffect", this, AtmosphericEngine, loadWeatherEffect);
  LoadParamXML(root, "SunEffect", this, AtmosphericEngine, loadSunEffect);
}

/**
 * @param root The XML-element to load WeatherEffects from
 */
void AtmosphericEngine::loadWeatherEffect(const TiXmlElement* root)
{
  LOAD_PARAM_START_CYCLE(root, element);
  {
    PRINTF(4)("element is: %s\n", element->Value());
    // Factory::fabricate(element);

    BaseObject* bo = Factory::fabricate(element);
    if( bo == NULL)
      PRINTF(0)(" Could not create Element %s\n", element->Value());
  }
  LOAD_PARAM_END_CYCLE(element);
}

/**
 * @param root The XML-element to load SunEffects from
 */
void AtmosphericEngine::loadSunEffect(const TiXmlElement* root)
{
  LOAD_PARAM_START_CYCLE(root, element);
  {
    PRINTF(4)("element is: %s\n", element->Value());
  }
  LOAD_PARAM_END_CYCLE(element);
}


/**
 * draws the effect, if needed
 */
void AtmosphericEngine::draw() const
{
  for (ObjectList<WeatherEffect>::const_iterator it = WeatherEffect::objectList().begin();
       it != WeatherEffect::objectList().end();
       ++it)
    (*it)->draw();
}



/**
 * ticks the effect if there is any time dependancy
 */
void AtmosphericEngine::tick(float dt)
{

  for (ObjectList<WeatherEffect>::const_iterator it = WeatherEffect::objectList().begin();
       it != WeatherEffect::objectList().end();
       ++it)
    (*it)->tick(dt);
}