source: orxonox.OLD/branches/atmospheric_engine/src/lib/graphics/effects/cloud_effect.cc @ 8052

/*
        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
*/

// TODO: Vektortextur erzeugen und Regionen auswählen, Sky...

#include "cloud_effect.h"

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

#include "glincl.h"
//#include "graphics_engine.h"
#include "material.h"
#include <math.h>

#include "parser/tinyxml/tinyxml.h"

using namespace std;

CREATE_FACTORY(CloudEffect, CL_CLOUD_EFFECT);

CloudEffect::CloudEffect(const TiXmlElement* root)
{
        this->setClassID(CL_CLOUD_EFFECT, "CloudEffect");

        this->init();

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

        this->activate();
}

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

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

        LoadParam(root, "animSpeed", this, CloudEffect, setCloudAnimation);

}


bool CloudEffect::init()
{
        // default values
        this->cloudAnimTimeStep = 0;

        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

        glGenTextures(2, &texID[0]);

        // Generate noise map a
        //CloudEffect::genNoiseMap(cloudMap32_a);
        
        if (this->cloudAnimTimeStep > 0) {
                // Generate noise map b
                //CloudEffect::genNoiseMap(cloudMap32_b);
        }

  this->material = new Material();

}

bool CloudEffect::activate()
{
        PRINTF(0)( "Activating CloudEffect\n");


}

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

void CloudEffect::draw() const
{
        /* TODO:
                -Load a texture, for now from an existing image, a cloud texture
                -Blend / Overlay this with a blue sky like in the tutorial
                -Make a skybox or whatever....
                -Animate it (for now move it along the sky)
        */

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

  this->material->setDiffuseMap("maps/lightning_bolt.png");
  this->material->select();

        glPushMatrix();
        glEnable(GL_TEXTURE_2D);

        glBindTexture(GL_TEXTURE_2D, texID[0]);

        // FIXME : Bind this to the sky - how do I do this?
        glBegin(GL_QUADS);
                glTexCoord2f(0.0f, 0.0f);
                glVertex3f(20, 20,  60);        // Bottom Left Of The Texture and Quad

                glTexCoord2f(1.0f, 0.0f);
                glVertex3f(60, 20,  60);        // Bottom Right Of The Texture and Quad

                glTexCoord2f(1.0f, 1.0f);
                glVertex3f(60, 60,  60);        // Top Right Of The Texture and Quad

                glTexCoord2f(0.0f, 1.0f);
                glVertex3f(20, 60,  60);        // Top Left Of The Texture and Quad
        glEnd(); 

        glPopMatrix();
}

void CloudEffect::tick (float dt)
{
        
}