#ifndef LAYERSTACK_H
#define LAYERSTACK_H

#include "pch.hpp"
#include "Layer.h"

namespace Archimedes {
    class Layerstack {

        public:
            Layerstack() {}

            ~Layerstack() {
                while(!lstack.empty()) {
                    pop();
                }
            }

            void push(Layer* l) {
                if(l) {
                    lstack.push_front(l);
                    l->onAttach();
                }
            }

            void pop() {
                Layer* l = lstack.front();
                lstack.pop_front();
                l->onDetach();
            }

            void renderAll() {
                for(Layer* l : lstack)
                    l->onRender();
            }

            void sendEvent(const Event& e) {
                for(Layer* l : lstack) {
                    if(l->onEvent(e)) {
                        break;
                    }
                }
            }

        private:

            std::list<Layer*> lstack;
    };
}

#endif