LayerStack.h

#pragma once
 
#include "Hana/Core/Core.h"
#include "Hana/Core/Layer.h"
 
#include <vector>
 
namespace Hana
{
    class LayerStack
    {
    public:
        LayerStack() = default;
        ~LayerStack();
 
        void PushLayer(Layer* layer);
        void PushOverlay(Layer* overlay);
        void PopLayer(Layer* layer);
        void PopOverlay(Layer* overlay);
 
        std::vector<Layer*>::iterator begin() { return m_Layers.begin(); }
        std::vector<Layer*>::iterator end() { return m_Layers.end(); }
    private:
        std::vector<Layer*> m_Layers;
        unsigned int m_LayerInsertIndex = 0;
    };
}