KlassischeKeplerKriege/game/renderer_polygon_3d/particle_batch.hpp

61 lines
1.7 KiB
C++

#pragma once
#include <vector>
#include <glm/vec2.hpp>
#include <glm/vec3.hpp>
#include "glclasses.hpp"
namespace endofthejedi {
class ParticleBatch {
public:
ParticleBatch(size_t id, 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::vec3 &p, const glm::vec3 &v);
void setCenter(const glm::vec3 &center);
void setMaxVelocity(float maxVelocity);
void bind();
void upload();
void render();
void tick(float dt);
bool done() const;
Shader *shader() { return &m_shader; }
size_t id() const { return m_id; }
private:
size_t dataSizeForIndex(int i);
void *dataSourceForIndex(int i);
private:
size_t m_id;
size_t m_numParticles;
float m_particleRadius;
const float m_maxAge;
float m_age;
float m_maxVelocity;
glm::vec3 m_center;
GLuint m_data_vbos[5];
std::vector<float> m_data_quad;
std::vector<glm::vec3> m_data_position;
std::vector<glm::vec3> m_data_velocity;
std::vector<float> m_data_kind;
std::vector<float> m_data_max_age;
GLuint m_attr_locations[5];
Shader m_shader;
};
}