ParticleSystem.h

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#pragma once
 
#include "GameObject.h"
#include "Sprite.h"
#include "Transform.h"
#include "Globals.h"
#include "Interpolation.h"
#include <deque>
 
#define SHADER_PARTICLES_DEFAULT  "Ressources\\Shaders\\ParticleBatched.shader"
 
#define TEXTURE_PARTICLES_DEFAULT "Ressources\\Images\\DefaultBox10x10.png"
 
struct ParticleProperties {
    fVec2 absoluteStartPosition = fVec2(0.0f, 0.0f); 
    float lifetime = 1.0f; 
    int lifedistance = 1000; 
    fVec2 sPosition = fVec2(0.0f, 0.0f); 
    BezierInterpolator directionX = BezierInterpolator(0.0f, 0.0f, 0.0f); 
    BezierInterpolator directionY = BezierInterpolator(1.0f, 1.0f, 0.0f); 
    BezierInterpolator scaleX = BezierInterpolator(1.0f, 1.0f, 0.0f); 
    BezierInterpolator scaleY = BezierInterpolator(1.0f, 1.0f, 0.0f); 
    BezierInterpolator colorX = BezierInterpolator(1.0f, 1.0f, 0.0f); 
    BezierInterpolator colorY = BezierInterpolator(1.0f, 1.0f, 0.0f); 
    BezierInterpolator colorZ = BezierInterpolator(1.0f, 1.0f, 0.0f); 
    BezierInterpolator colorA = BezierInterpolator(1.0f, 1.0f, 0.0f); 
    BezierInterpolator speed = BezierInterpolator(100.0f, 0.0f, 0.0f); 
};
 
class Particle {
private:
public:
    GameObject go; 
    Sprite* sprite; 
    Transform* transform; 
    bool isActive = 0; 
    ParticleProperties prop; 
    fVec2 currentPosition; 
    fVec2 currentScale; 
    float currentSpeed; 
    fVec4 currentColor; 
    fVec2 currentDirection; 
    double clock = 0.0; 
    float distance = 0.0; 
    void Disable();
 
    void Enable();
};
 
class ParticleSystem : public GameComponent {
private:
    double clock = 0.0; 
public:
    static std::string GetType() { return "ParticleSystem"; };
 
    GameObject* attachedObj = nullptr; 
    ParticleSystem() {};
    ~ParticleSystem();
    ParticleSystem(GameObject* attachedObj);
 
    static std::map<GameObject*, ParticleSystem> componentList; 
    bool isActive = true; 
    std::deque<Particle> pool; 
    std::deque<int> disabled; 
    std::deque<int> enabled; 
    int maxParticles = 100; 
    double emissionFrequency = 1.0; 
    uint16 emissionQuantity = 1; 
    int initNum = 5; 
    ParticleProperties prop; 
    bool recycle = 1; 
    std::string shader = SHADER_PARTICLES_DEFAULT; 
    std::string texture = TEXTURE_PARTICLES_DEFAULT; 
    void Update();
 
    void UpdateParticle(int index);
 
    void Emit();
 
    void Init();
 
    void InitParticle();
 
    int Serialize(std::fstream* data, int offset) override;
 
    int Deserialize(std::fstream* data, int offset) override;
};