direction_manipulator.h

#pragma once
 
#include "../particle_script.h"
#include "curves.h"
 
namespace smlt {
 
class DirectionManipulator:
    public Manipulator {
 
public:
    DirectionManipulator(ParticleScript* script, const smlt::Vec3& dir):
        Manipulator(script, "direction"),
        dir_(dir) {}
 
 
private:
    void do_manipulate(
        ParticleSystem* system,
        Particle* particles,
        std::size_t particle_count, float dt) const override;
 
    smlt::Vec3 dir_;
};
 
 
}