locatorpass.h

#pragma once
 
#include "../utils/event.h"
#include "locator.h"
#include "handler.h"
 
#include <cilcore.h>
 
#include <memory>
#include <tuple>
 
namespace cil
{
    class LocatorPass : public EventWatcher, public Pass
    {
    private:
        Modifier m_modifier = Modifier::None;
        std::shared_ptr<Locator> m_actived;
        std::shared_ptr<Handler> m_hilited;
        Matrix4f m_initial;
 
    public:
        LocatorPass(const std::shared_ptr<Background>& background, const std::shared_ptr<Camera>& camera);
        virtual ~LocatorPass();
 
        void add(const std::shared_ptr<AbstractLocator>& locator) const;
        void remove(const std::shared_ptr<AbstractLocator>& locator) const;
        void clear() const;
        bool begin(const Ray& r, Modifier modifier = Modifier::None);
        bool update(const Ray& r);
        bool end(const Ray& r);
 
    private:
        Ray findRay(const Ray& r, const Matrix4f& m);
        std::tuple<std::shared_ptr<Locator>, std::shared_ptr<Handler>> hit(const Ray& r);
        bool hilite(const Ray& r);
    };
 
    std::shared_ptr<LocatorPass> _locatorPass(const std::shared_ptr<Background>& background, const std::shared_ptr<Camera>& camera);
}