/*
   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: hdavid, amaechler
*/

#include "rain_effect.h"

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

#include "glincl.h"
#include "debug.h"

#include "state.h"
#include "spark_particles.h"
#include "plane_emitter.h"

#include "parser/tinyxml/tinyxml.h"

//SHELL_COMMAND(activate, RainEffect, activateRain);
//SHELL_COMMAND(deactivate, RainEffect, deactivateRain);

using namespace std;

CREATE_FACTORY(RainEffect, CL_RAIN_EFFECT);

RainEffect::RainEffect(const TiXmlElement* root)
{
  this->setClassID(CL_RAIN_EFFECT, "RainEffect");

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

  this->init();

  this->activate();
}

RainEffect::~RainEffect()
{
  this->deactivate();
}

void RainEffect::loadParams(const TiXmlElement* root)
{
	WeatherEffect::loadParams(root);

	LoadParam(root, "coord", this, RainEffect, setRainCoord);
	LoadParam(root, "size", this, RainEffect, setRainSize);
	LoadParam(root, "rate", this, RainEffect, setRainRate);
	LoadParam(root, "velocity", this, RainEffect, setRainVelocity);
}


bool RainEffect::init()
{
  this->emitter = new PlaneEmitter(this->rainSize);
}


SparkParticles* RainEffect::rainParticles = NULL;

bool RainEffect::activate()
{
	PRINTF(0)( "Activating RainEffect, coord: %f, %f, %f, size: %f, %f, rate: %f, velocity: %f\n", this->rainCoord.x, this->rainCoord.y, this->rainCoord.z, this->rainSize.x, this-> rainSize.y, this->rainRate, this->rainVelocity );

	if (unlikely(RainEffect::rainParticles == NULL))
	{
		RainEffect::rainParticles = new SparkParticles(10000);
		RainEffect::rainParticles->setName("RainParticles");
		RainEffect::rainParticles->setLifeSpan(2, 2);
		RainEffect::rainParticles->setRadius(0.05, 0.05);
		RainEffect::rainParticles->setRadius(0.04, 0.04);
		RainEffect::rainParticles->setRadius(0.03, 0.03);
		RainEffect::rainParticles->setColor(0, 0, 0, 1, .3);
		RainEffect::rainParticles->setColor(0.5, 0.5, 0.5, 1, 0.2);
		RainEffect::rainParticles->setColor(0.8, 0.8, 0.2, 0.3, 0.3);
		RainEffect::rainParticles->setColor(1, 0.5, 0.5, 1, 0);
	}

	this->emitter->setSystem(RainEffect::rainParticles);

	RainEffect::rainParticles->debug();

	this->emitter->setRelCoor(this->rainCoord);

	this->emitter->setEmissionRate(this->rainRate);
	this->emitter->setEmissionVelocity(-this->rainVelocity);

	this->emitter->setSpread(0, .3);
}


bool RainEffect::deactivate()
{
  PRINTF(0)("Deactivating RainEffect\n");

  this->emitter->setSystem(NULL);
}