cpp-engine/include/engine/universe.h

//
//  universe.h
//  engine_base
//
//  Created by Sam Jaffe on 3/15/23.
//

#pragma once

#include <memory>
#include <string>

#include <engine/forwards.h>
#include <random/random.h>
#include <serializer/jsonizer.h>

namespace engine {
class Universe {
private:
  std::shared_ptr<Mailbox> mailbox_;
  std::shared_ptr<env::Config const> config_;
  random::Random random_;
  serializer::Jsonizer jsonizer_;

public:
  Mailbox & mailbox() const { return *mailbox_; }
  env::Config const & config() const { return *config_; }
  serializer::Jsonizer const & jsonizer() const { return jsonizer_; }
  random::Random const & random() const { return random_; }

  /**
   * @brief Construct a universe with all necessary components
   * @param cfg The config object generated from reading a config file or JSON
   * @param cache A serializer cache. If null, then we construct a default cache
   * @param rng A random number generator's underlying implementation. This
   * exists for dependency injection's sake. If rng is null, then random_ will
   * be constructed with the default random device.
   */
  Universe(std::shared_ptr<Mailbox> mailbox, env::Config const & cfg,
           std::shared_ptr<serializer::SharedCache> cache,
           std::shared_ptr<random::Device> rng);

  void set_random(random::Random const &random) { random_ = random; }

protected:
  template <typename T>
  void load(std::string const & name, std::string const & fallback = "");
};
}