// Copyright (c) 2022 Dominic Masters
// 
// This software is released under the MIT License.
// https://opensource.org/licenses/MIT

#include "Scene.hpp"
#include "game/DawnGame.hpp"

using namespace Dawn;

Scene::Scene(DawnGame *game) {
  assertNotNull(game);
  
  this->game = game;
  this->nextId = 0;
}

void Scene::update() {
  // Finsh adding scene items that were trying to add from the last frame.
  auto it = this->itemsNotInitialized.begin();
  while(it != this->itemsNotInitialized.end()) {
    this->items[it->first] = it->second;
    it->second->init();
    ++it;
  }
  this->itemsNotInitialized.clear();
  
  // TODO: Cleanup old scene items

  // TODO: Tick scene items(?)
  this->eventSceneUpdate.invoke();
  if(!this->game->timeManager.isPaused) this->eventSceneUnpausedUpdate.invoke();
}

SceneItem * Scene::createSceneItem() {
  sceneitemid_t id = this->nextId++;
  auto item = new SceneItem(this, id);
  this->itemsNotInitialized[id] = item;
  return item;
}

Scene::~Scene() {
  auto it = this->items.begin();
  while(it != this->items.end()) {
    delete it->second;
    ++it;
  }

  auto it2 = this->itemsNotInitialized.begin();
  while(it2 != this->itemsNotInitialized.end()) {
    delete it2->second;
    ++it2;
  }
}