particlesystem.hpp

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#pragma once
 
#include <glm/glm.hpp>
 
#include "../ecs/system.hpp"
#include "../ecs/component.hpp"
#include "material.hpp"
 
namespace Engine::Graphics {
    struct Particle : public ECS::Component {
        float lifetime = 0.0f;
        float maxLifetime = 2.0f;
        glm::vec3 velocity = {0.0f, 0.0f, 0.0f};

        float size = 1.0f;
        float initialOpacity = 1.0f;

        bool fadeOut = true;
    };
 

    struct ParticleEmitter : public ECS::Component {
        float emissionRate = 10.0f;
        float timeSinceLastEmission = 0.0f;
        size_t maxParticles = 100;
        bool active = true;
        
        float particleMinLifetime = 2.0f;
        float particleMaxLifetime = 2.0f;

        float particleMinInitialSpeed = 50.0f;
        float particleMaxInitialSpeed = 50.0f;

        float particleMinInitialSize = 1.0f;
        float particleMaxInitialSize = 1.0f;

        float particleMinInitialOpacity = 1.0f;
        float particleMaxInitialOpacity = 1.0f;

        float fadeOut = true;
        Material sourceMaterial;
    };

    class ParticleSystem : public ECS::System {
        public:
            void OnUpdate(float deltaTime) override;
    };
}