ParticleGenerator.h

/*
 * This file is part of Bubba-3D.
 *
 * Bubba-3D is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Bubba-3D is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Bubba-3D. If not, see http://www.gnu.org/licenses/.
 */
#pragma once

#include "linmath/float3.h"
#include <vector>
#include "IRenderComponent.h"

#define LINEAR_SCALE_FACTOR 50.0f
#define LOD_FACTOR 25.0f

class Camera;
class Texture;
class Particle;
class ParticleConf;

class ParticleGenerator : public IRenderComponent
{
public:
    ParticleGenerator(Texture *texture, int amount,
                      Camera *camera, chag::float4x4 modelMatrix,
                      ParticleConf *conf);

    ~ParticleGenerator();

    void update(float dt);

    void renderShadow(ShaderProgram* shaderProgram) {};

    void render();

    void setScaleLod(bool value);

    void setLooping(bool value);
private:
    std::vector<Particle*> m_particles;
    GLuint m_vaob;
    Texture *texture;
    int m_amount = 0;
    Camera *m_camera;

    ParticleConf *conf;
    bool doScale = true;

    chag::float3x3 getModelMatrix3x3();
};