source: orxonox.OLD/branches/atmospheric_engine/src/lib/graphics/effects/lightening_effect.cc @ 8730

/*
   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 "lightening_effect.h"

#include "state.h"

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

#include "effects/billboard.h"

#include "glincl.h"
#include "parser/tinyxml/tinyxml.h"

#include "shell_command.h"
#include "light.h"

SHELL_COMMAND(activate, LighteningEffect, activateLightening);
SHELL_COMMAND(deactivate, LighteningEffect, deactivateLightening);

using namespace std;

CREATE_FACTORY(LighteningEffect, CL_LIGHTENING_EFFECT);

LighteningEffect::LighteningEffect(const TiXmlElement* root)
{
  this->setClassID(CL_LIGHTENING_EFFECT, "LighteningEffect");

  this->init();

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

  if(this->lighteningActivate)
    this->activate();
}

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

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

  LoadParam(root, "coord", this, LighteningEffect, coord);
  LoadParam(root, "frequency", this, LighteningEffect, setFlashFrequency);
  LoadParam(root, "const-time", this, LighteningEffect, setFlashConstTime);
  LoadParam(root, "rising-time", this, LighteningEffect, setFlashRisingTime);
  LoadParam(root, "size", this, LighteningEffect, setFlashSize);
  LoadParam(root, "seed", this, LighteningEffect, setFlashSeed);

  LOAD_PARAM_START_CYCLE(root, element);
  {
    LoadParam_CYCLE(element, "option", this, LighteningEffect, setLighteningOption);
  }
  LOAD_PARAM_END_CYCLE(element);
}


void LighteningEffect::init()
{
  //default values
  this->lighteningActivate = false;

  this->flashFrequency = 4.0f;
  this->flashFrequencyBase = 4.0f;
  this->flashFrequencySeed = 2.0f;

  this->flashHoldTime = 0.1f;
  this->flashRisingTime = 0.03f;

  this->seedX = 500.f;
  this->seedZ = 1000.0f;

  this->width = 700.0f;
  this->height = 250.0f;
  this->seedWidth = 50.0f;
  this->seedHeight = 50.0f;

  this->lighteningMove = false;

  this->mainPosX = 1200;
  this->mainPosY = 900;
  this->mainPosZ = 0;

  this->time = 0.0;

  // initialize lightening textures
  this->billboard[0] = new Billboard(NULL);
  this->billboard[0]->setTexture("maps/lightning_bolt1.png");
  this->billboard[0]->setSize(this->width, this->height);
  this->billboard[0]->setVisibiliy(false);

  this->billboard[1] = new Billboard(NULL);
  this->billboard[1]->setTexture("maps/lightning_bolt2.png");
  this->billboard[1]->setSize(this->width, this->height);
  this->billboard[1]->setVisibiliy(false);

  this->billboard[2] = new Billboard(NULL);
  this->billboard[2]->setTexture("maps/lightning_bolt3.png");
  this->billboard[2]->setSize(this->width, this->height);
  this->billboard[2]->setVisibiliy(false);

  this->billboard[3] = new Billboard(NULL);
  this->billboard[3]->setTexture("maps/lightning_bolt4.png");
  this->billboard[3]->setSize(this->width, this->height);
  this->billboard[3]->setVisibiliy(false);

  if (this->lighteningMove)
  {
    this->cameraCoor = State::getCameraNode()->getAbsCoor();
    this->billboard[0]->setAbsCoor(this->cameraCoor.x+1200,900,this->cameraCoor.z+0);
    this->billboard[1]->setAbsCoor(this->cameraCoor.x+1200,900,this->cameraCoor.z+0);
    this->billboard[2]->setAbsCoor(this->cameraCoor.x+1200,900,this->cameraCoor.z+0);
    this->billboard[3]->setAbsCoor(this->cameraCoor.x+1200,900,this->cameraCoor.z+0);
  }
  else
  {
    this->billboard[0]->setAbsCoor(1200,900,0);
    this->billboard[1]->setAbsCoor(1200,900,0);
    this->billboard[2]->setAbsCoor(1200,900,0);
    this->billboard[3]->setAbsCoor(1200,900,0);
  }

  this->flashLight = new Light();
  this->flashLight->setDiffuseColor(0,0,0);
  this->flashLight->setSpecularColor(0,0,0);

  //load sound
  if (this->thunderBuffer != NULL)
    ResourceManager::getInstance()->unload(this->thunderBuffer);
  this->thunderBuffer = (OrxSound::SoundBuffer*)ResourceManager::getInstance()->load("sound/atmosphere/thunder.wav", WAV);

}

void LighteningEffect::coord(float x, float y, float z)
{
  if (this->lighteningMove)
  {
    this->cameraCoor = State::getCameraNode()->getAbsCoor();
    this->billboard[0]->setAbsCoor(this->cameraCoor.x+x, y, this->cameraCoor.z+z);
    this->billboard[1]->setAbsCoor(this->cameraCoor.x+x, y, this->cameraCoor.z+z);
    this->billboard[2]->setAbsCoor(this->cameraCoor.x+x, y, this->cameraCoor.z+z);
    this->billboard[3]->setAbsCoor(this->cameraCoor.x+x, y, this->cameraCoor.z+z);
  }
  else
  {
    this->billboard[0]->setAbsCoor(x, y, z);
    this->billboard[1]->setAbsCoor(x, y, z);
    this->billboard[2]->setAbsCoor(x, y, z);
    this->billboard[3]->setAbsCoor(x, y, z);
  }

  this->mainPosX = x;
  this->mainPosY = y;
  this->mainPosZ = z;
}


void LighteningEffect::setFlashSize(float width, float height, float seedWidth, float seedHeight)
{
  this->width = width;
  this->height = height;
  this->seedWidth = seedWidth;
  this->seedHeight = seedHeight;

  this->billboard[0]->setSize(this->width, this->height);
  this->billboard[1]->setSize(this->width, this->height);
  this->billboard[2]->setSize(this->width, this->height);
  this->billboard[3]->setSize(this->width, this->height);
}


void LighteningEffect::activate()
{
  PRINTF(0)( "Activating LighteningEffect\n" );
  this->lighteningActivate = true;

  this->time = 0;
}


void LighteningEffect::deactivate()
{
  PRINTF(0)("Deactivating LighteningEffect\n");
  this->lighteningActivate = false;

  this->billboard[0]->setVisibiliy(false);
  this->billboard[1]->setVisibiliy(false);
  this->billboard[2]->setVisibiliy(false);
  this->billboard[3]->setVisibiliy(false);
}

void LighteningEffect::tick (float dt)
{
  if(!lighteningActivate)
    return;

  this->time += dt;

  float x;
  x = (float)rand()/(float)RAND_MAX;

  // TODO: Make random flashing with short light dingsda:)

  if( this->time > this->flashFrequency)
  {
    // Reset timer
    this->time = 0.0f;

    // Move billboard to start position
    this->flashLight->setAbsCoor(this->billboard[0]->getAbsCoor().x, this->billboard[0]->getAbsCoor().y, this->billboard[0]->getAbsCoor().z);

    // Start a flash & lightening cycle
    this->billboard[0]->setVisibiliy(true);

    // Lighten up environment
    this->flashLight->setDiffuseColor(1,1,1);
    this->flashLight->setSpecularColor(1,1,1);

    // Play thunder sound
    this->soundSource.play(this->thunderBuffer);
  }

  if( this->billboard[0]->isVisible() && this->time > this->flashRisingTime*1/3 )
  {
    this->billboard[0]->setVisibiliy(false);
    this->billboard[1]->setVisibiliy(true);
  }
  else if( this->billboard[1]->isVisible() && this->time > this->flashRisingTime*2/3 )
  {
    this->billboard[1]->setVisibiliy(false);
    this->billboard[2]->setVisibiliy(true);

  }
  else if( this->billboard[2]->isVisible() && this->time > this->flashRisingTime)
  {
    this->billboard[2]->setVisibiliy(false);
    this->billboard[3]->setVisibiliy(true);
  }

  if( this->billboard[3]->isVisible() && this->time > this->flashHoldTime)
  {
    this->billboard[3]->setVisibiliy(false);
    this->time = 0.0f;
    this->flashLight->setDiffuseColor(0,0,0);
    this->flashLight->setSpecularColor(0,0,0);

    this->newCoordinates();
  }
}

void LighteningEffect::newCoordinates() {

    float posX, posZ;

    if(this->lighteningMove)
    {

      this->cameraCoor = State::getCameraNode()->getAbsCoor();
      posX = this->mainPosX - this->seedX * (float)rand()/(float)RAND_MAX + this->cameraCoor.x;
      posZ = this->mainPosZ + this->seedZ * (float)rand()/(float)RAND_MAX + this->cameraCoor.z;

    }
    else
    {

      posX = this->mainPosX - this->seedX * (float)rand()/(float)RAND_MAX;
      posZ = this->mainPosZ + this->seedZ * (float)rand()/(float)RAND_MAX;

    }

    this->billboard[0]->setAbsCoor(posX, this->mainPosY, posZ);
    this->billboard[1]->setAbsCoor(posX, this->mainPosY, posZ);
    this->billboard[2]->setAbsCoor(posX, this->mainPosY, posZ);
    this->billboard[3]->setAbsCoor(posX, this->mainPosY, posZ);

    this->flashFrequency = this->flashFrequencyBase + this->flashFrequencySeed * (float)rand()/(float)RAND_MAX;

    float w = this->width + this->seedWidth * (float)rand()/(float)RAND_MAX;
    float h = this->height + this->seedHeight * (float)rand()/(float)RAND_MAX;

    this->billboard[0]->setSize(w, h);
    this->billboard[1]->setSize(w, h);
    this->billboard[2]->setSize(w, h);
    this->billboard[3]->setSize(w, h);
}