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36 lines
867 B
C++
36 lines
867 B
C++
//
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// Created by Daniu
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//
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#ifndef EU07_PARTICLESSYSTEM_H
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#define EU07_PARTICLESSYSTEM_H
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#include "BaseSystem.h"
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#include "entitysystem/ECWorld.h"
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#include "entitysystem/components/RenderComponents.h"
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class ParticlesSystem : public BaseSystem
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{
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public:
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ParticlesSystem();
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~ParticlesSystem();
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void Update(ECWorld& world, float dt) override;
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void Render(ECWorld& world) override;
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private:
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void SpawnParticle(ECSComponent::ParticleEmitter& emitter);
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// Per-instance data uploaded to GPU (one entry per live particle)
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struct GPUInstanceData {
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glm::vec3 position; // camera-relative world position
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float size;
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glm::vec4 color;
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};
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// OpenGL resources — allocated lazily on first Render() call
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struct RenderState;
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std::unique_ptr<RenderState> m_renderState;
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};
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#endif // EU07_PARTICLESSYSTEM_H
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