KlassischeKeplerKriege/game/renderer_polygon_3d/particle_batch.hpp
2016-09-29 00:50:14 +02:00

46 lines
1.2 KiB
C++

#pragma once
#include <vector>
#include <glm/vec2.hpp>
#include "glclasses.hpp"
namespace endofthejedi {
class ParticleBatch {
public:
ParticleBatch(size_t numParticles, float particleRadius, float maxAge);
// deallocate opengl stuff on destroy
~ParticleBatch();
size_t numParticles() const { return m_numParticles; }
void setParticle(size_t index, const glm::vec2 &p, const glm::vec2 &v);
void bind();
void upload();
void render();
Shader *shader() { return &m_shader; }
private:
size_t dataSizeForIndex(int i);
void *dataSourceForIndex(int i);
private:
size_t m_numParticles;
float m_particleRadius;
float m_maxAge;
GLuint m_data_vbos[5];
std::vector<float> m_data_quad;
std::vector<glm::vec2> m_data_position;
std::vector<glm::vec2> m_data_velocity;
std::vector<float> m_data_kind;
std::vector<float> m_data_max_age;
Shader m_shader;
};
}