45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
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#pragma once
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#include <vector>
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#include <glm/vec2.hpp>
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#include "glclasses.hpp"
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namespace endofthejedi {
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class ParticleBatch {
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public:
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ParticleBatch(size_t numParticles, float particleRadius);
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// deallocate opengl stuff on destroy
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~ParticleBatch();
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size_t numParticles() const { return m_numParticles; }
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void setParticle(size_t index, const glm::vec2 &p, const glm::vec2 &v, float kind, float maxAge);
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void bind();
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void upload();
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void render();
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Shader *shader() { return &m_shader; }
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private:
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size_t dataSizeForIndex(int i);
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void *dataSourceForIndex(int i);
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private:
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size_t m_numParticles;
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GLuint m_data_vbos[4];
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std::vector<glm::vec2> m_data_position;
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std::vector<glm::vec2> m_data_velocity;
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std::vector<float> m_data_kind;
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std::vector<float> m_data_max_age;
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float m_particleRadius;
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Shader m_shader;
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};
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}
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