source: orxonox.OLD/branches/volumetric_fog/src/world_entities/environments/model_entity.cc

/*
   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: Benjamin Grauer
   co-programmer: ...
*/

#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_WORLD_ENTITY

#include "model_entity.h"

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



#include "class_id_DEPRECATED.h"
ObjectListDefinitionID(ModelEntity, CL_MODEL_ENTITY);
CREATE_FACTORY(ModelEntity);

/**
 *  initializes a skybox from a XmlElement
*/
ModelEntity::ModelEntity(const TiXmlElement* root)
{
  this->registerObject(this, ModelEntity::_objectList);
  this->toList(OM_ENVIRON);

  this->speed = NULL;
  this->momentum = NULL;

  this->setSynchronized(true);

  if (root != NULL)
    this->loadParams(root);
}


/**
 *  default destructor
*/
ModelEntity::~ModelEntity()
{
  if (this->speed != NULL)
    delete this->speed;
  if (this->momentum)
    delete this->momentum;
}

void ModelEntity::loadParams(const TiXmlElement* root)
{
  WorldEntity::loadParams(root);

  LoadParam(root, "speed", this, ModelEntity, setSpeed);
  LoadParam(root, "momentum", this, ModelEntity, setMomentum);
}


void ModelEntity::setSpeed(float x, float y, float z)
{
  if (this->speed == NULL)
    this->speed = new Vector;
  *this->speed = Vector(x,y,z);
}

void ModelEntity::setMomentum (float angle, float x, float y, float z)
{
  Vector v(x,y,z);
  v.debug();
  v.normalize();
  v.debug();

  if (this->momentum == NULL)
    this->momentum = new Quaternion;
  *this->momentum = Quaternion(angle, v);

  this->momentum->debug();
}

void ModelEntity::tick(float dt)
{
  if (this->speed != NULL)
    this->shiftCoor(*this->speed * dt);

  if (this->momentum != NULL)
  {
    this->shiftDir((*this->momentum * dt ).getNormalized());
    //this->getAbsDir().debug();
  }
}