CollisionComponent.h

#ifndef HB_COLLISION_COMPONENT_H
#define HB_COLLISION_COMPONENT_H
#include <queue>
#include <set>
#include "../Core/Transform.h"
#include "../Core/GameObject.h"
#include "../Core/Vector2d.h"
#include "../Core/Vector3d.h"
#include "Rect.h"

namespace hb
{
    class CollisionComponent : public GameObject::Component, public Transform
    {
    public:
        struct Collision
        {
            Rect intersection;
            GameObject* object;
        };
        CollisionComponent(const Vector2d& size = Vector2d());
        CollisionComponent(double width, double height);
        virtual ~CollisionComponent() override;

        virtual void preUpdate() override;
        virtual void postUpdate() override;
        void setSize(const Vector2d& box);
        const Vector2d& getSize() const;

        static void executeCollisions();

        Collision nextCollision();
        bool empty() const;

    private:
        static bool s_collisions_executed;
        static std::set<CollisionComponent*> s_components;

        Vector2d m_size;
        std::queue<Collision> m_collisions;
        std::set<CollisionComponent*>::iterator m_me;
    };
}
#endif