particleSystemGPU.hpp

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#ifndef PARTICLESYSTEMGPU_HPP
#define PARTICLESYSTEMGPU_HPP

#include <glm/vec2.hpp>
#include "tessellation.hpp"


class ParticleSystemGPU : public Tessellation {
public:
    struct NewParticle {
        glm::vec3 pos;
        glm::vec3 dir;
        glm::vec3 atr;//power, angle, dummy
    };

public:
    ParticleSystemGPU(const std::string& name, Scene* scene = 0, Model* model = 0, const glm::mat4& modelMatrix = glm::mat4(1.0f));
    virtual ~ParticleSystemGPU();


    void push(const NewParticle& pos);
    
    GLuint getActiveCount() const { return counters[0]; }
    GLuint getParticlePosVBO() const { return particlesPosVBO; }

    void draw() const;
    bool animate(double time);
    void update(double deltaT);
    void setShader(Shader* val);

private:
    double lastUpdate;
    double lastAnimate;
    Shader* computeShader;

    GLuint countersVBO;
    GLuint particlesVBO;
    GLuint particlesPosVBO;
    std::vector<GLuint> counters;
    std::vector<NewParticle> newParticles;
};

#endif //PARTICLESYSTEMGPU_HPP