osb/source/game/StarRoot.hpp

#ifndef STAR_ROOT_HPP
#define STAR_ROOT_HPP

#include "StarJson.hpp"
#include "StarLogging.hpp"
#include "StarListener.hpp"
#include "StarAssets.hpp"
#include "StarConfiguration.hpp"

namespace Star {

STAR_CLASS(Configuration);
STAR_CLASS(ItemDatabase);
STAR_CLASS(MaterialDatabase);
STAR_CLASS(ObjectDatabase);
STAR_CLASS(PlantDatabase);
STAR_CLASS(ProjectileDatabase);
STAR_CLASS(MonsterDatabase);
STAR_CLASS(NpcDatabase);
STAR_CLASS(StagehandDatabase);
STAR_CLASS(VehicleDatabase);
STAR_CLASS(PlayerFactory);
STAR_CLASS(EntityFactory);
STAR_CLASS(TerrainDatabase);
STAR_CLASS(BiomeDatabase);
STAR_CLASS(LiquidsDatabase);
STAR_CLASS(StatusEffectDatabase);
STAR_CLASS(DamageDatabase);
STAR_CLASS(ParticleDatabase);
STAR_CLASS(EffectSourceDatabase);
STAR_CLASS(FunctionDatabase);
STAR_CLASS(TreasureDatabase);
STAR_CLASS(DungeonDefinitions);
STAR_CLASS(TilesetDatabase);
STAR_CLASS(StatisticsDatabase);
STAR_CLASS(EmoteProcessor);
STAR_CLASS(SpeciesDatabase);
STAR_CLASS(ImageMetadataDatabase);
STAR_CLASS(VersioningDatabase);
STAR_CLASS(QuestTemplateDatabase);
STAR_CLASS(AiDatabase);
STAR_CLASS(TechDatabase);
STAR_CLASS(CodexDatabase);
STAR_CLASS(BehaviorDatabase);
STAR_CLASS(TenantDatabase);
STAR_CLASS(PatternedNameGenerator);
STAR_CLASS(DanceDatabase);
STAR_CLASS(SpawnTypeDatabase);
STAR_CLASS(RadioMessageDatabase);
STAR_CLASS(CollectionDatabase);

STAR_CLASS(Root);

STAR_EXCEPTION(RootException, StarException);

// Singleton Root object for starbound providing access to the unique
// Configuration class, as well as the assets, root factories, and databases.
// Root, and all members of Root, should be thread safe.  Root initialization
// should be completed before any code dependent on Root is started in any
// thread, and all Root dependent code in any thread should be finished before
// letting Root destruct.
class Root {
public:
  struct Settings {
    Assets::Settings assetsSettings;

    // Asset sources are scanned for in the given directories, in order.
    StringList assetDirectories;

    Json defaultConfiguration;

    // Top-level storage directory under which all game data is saved
    String storageDirectory;

    // Name of the log file that should be written, if any, relative to the
    // storage directory
    Maybe<String> logFile;

    // Number of rotated log file backups
    unsigned logFileBackups;

    // The minimum log level to write to any log sink
    LogLevel logLevel;

    // If true, doesn't write any logging to stdout, only to the log file if
    // given.
    bool quiet;

    // If given, will write changed configuration to the given file within the
    // storage directory.
    Maybe<String> runtimeConfigFile;
  };

  // Get pointer to the singleton root instance, if it exists.  Otherwise,
  // returns nullptr.
  static Root* singletonPtr();

  // Gets reference to root singleton, throws RootException if root is not
  // initialized.
  static Root& singleton();

  // Initializes the starbound root object and does the initial load.  All of
  // the Root members will be just in time loaded as they are accessed, unless
  // fullyLoad is called beforehand.
  Root(Settings settings);

  Root(Root const&) = delete;
  Root& operator=(Root const&) = delete;

  ~Root();

  // Clears existing Root members, allowing them to be loaded fresh from disk.
  void reload();

  // Reloads with the given mod sources applied on top of the base mod source
  // specified in the settings.  Mods in the base mod source will override mods
  // in the given mod sources
  void reloadWithMods(StringList modDirectories);

  // Ensures all Root members are loaded without waiting for them to be auto
  // loaded.
  void fullyLoad();

  // Add a listener that will be called on Root reload.  Automatically managed,
  // if the listener is destroyed then it will automatically be removed from
  // the internal listener list.
  void registerReloadListener(ListenerWeakPtr reloadListener);

  // Translates the given path to be relative to the configured storage
  // location.
  String toStoragePath(String const& path) const;

  // All of the Root member accessors are safe to call at any time after Root
  // initialization, if they are not loaded they will load before returning.

  AssetsConstPtr assets();
  ConfigurationPtr configuration();

  ObjectDatabaseConstPtr objectDatabase();
  PlantDatabaseConstPtr plantDatabase();
  ProjectileDatabaseConstPtr projectileDatabase();
  MonsterDatabaseConstPtr monsterDatabase();
  NpcDatabaseConstPtr npcDatabase();
  StagehandDatabaseConstPtr stagehandDatabase();
  VehicleDatabaseConstPtr vehicleDatabase();
  PlayerFactoryConstPtr playerFactory();

  EntityFactoryConstPtr entityFactory();

  PatternedNameGeneratorConstPtr nameGenerator();

  ItemDatabaseConstPtr itemDatabase();
  MaterialDatabaseConstPtr materialDatabase();
  TerrainDatabaseConstPtr terrainDatabase();
  BiomeDatabaseConstPtr biomeDatabase();
  LiquidsDatabaseConstPtr liquidsDatabase();
  StatusEffectDatabaseConstPtr statusEffectDatabase();
  DamageDatabaseConstPtr damageDatabase();
  ParticleDatabaseConstPtr particleDatabase();
  EffectSourceDatabaseConstPtr effectSourceDatabase();
  FunctionDatabaseConstPtr functionDatabase();
  TreasureDatabaseConstPtr treasureDatabase();
  DungeonDefinitionsConstPtr dungeonDefinitions();
  TilesetDatabaseConstPtr tilesetDatabase();
  StatisticsDatabaseConstPtr statisicsDatabase();
  StatisticsDatabaseConstPtr statisticsDatabase();
  EmoteProcessorConstPtr emoteProcessor();
  SpeciesDatabaseConstPtr speciesDatabase();
  ImageMetadataDatabaseConstPtr imageMetadataDatabase();
  VersioningDatabaseConstPtr versioningDatabase();
  QuestTemplateDatabaseConstPtr questTemplateDatabase();
  AiDatabaseConstPtr aiDatabase();
  TechDatabaseConstPtr techDatabase();
  CodexDatabaseConstPtr codexDatabase();
  BehaviorDatabaseConstPtr behaviorDatabase();
  TenantDatabaseConstPtr tenantDatabase();
  DanceDatabaseConstPtr danceDatabase();
  SpawnTypeDatabaseConstPtr spawnTypeDatabase();
  RadioMessageDatabaseConstPtr radioMessageDatabase();
  CollectionDatabaseConstPtr collectionDatabase();

private:
  static StringList scanForAssetSources(StringList const& directories);
  template <typename T, typename... Params>
  static shared_ptr<T> loadMember(shared_ptr<T>& ptr, Mutex& mutex, char const* name, Params&&... params);
  template <typename T>
  static shared_ptr<T> loadMemberFunction(shared_ptr<T>& ptr, Mutex& mutex, char const* name, function<shared_ptr<T>()> loadFunction);

  // m_configurationMutex must be held when calling
  void writeConfig();

  static atomic<Root*> s_singleton;

  Settings m_settings;

  Mutex m_modsMutex;
  StringList m_modDirectories;

  ListenerGroup m_reloadListeners;

  Json m_lastRuntimeConfig;
  Maybe<String> m_runtimeConfigFile;

  ThreadFunction<void> m_maintenanceThread;
  Mutex m_maintenanceStopMutex;
  ConditionVariable m_maintenanceStopCondition;
  bool m_stopMaintenanceThread;

  AssetsPtr m_assets;
  Mutex m_assetsMutex;

  ConfigurationPtr m_configuration;
  Mutex m_configurationMutex;

  ObjectDatabasePtr m_objectDatabase;
  Mutex m_objectDatabaseMutex;

  PlantDatabasePtr m_plantDatabase;
  Mutex m_plantDatabaseMutex;

  ProjectileDatabasePtr m_projectileDatabase;
  Mutex m_projectileDatabaseMutex;

  MonsterDatabasePtr m_monsterDatabase;
  Mutex m_monsterDatabaseMutex;

  NpcDatabasePtr m_npcDatabase;
  Mutex m_npcDatabaseMutex;

  StagehandDatabasePtr m_stagehandDatabase;
  Mutex m_stagehandDatabaseMutex;

  VehicleDatabasePtr m_vehicleDatabase;
  Mutex m_vehicleDatabaseMutex;

  PlayerFactoryPtr m_playerFactory;
  Mutex m_playerFactoryMutex;

  EntityFactoryPtr m_entityFactory;
  Mutex m_entityFactoryMutex;

  PatternedNameGeneratorPtr m_nameGenerator;
  Mutex m_nameGeneratorMutex;

  ItemDatabasePtr m_itemDatabase;
  Mutex m_itemDatabaseMutex;

  MaterialDatabasePtr m_materialDatabase;
  Mutex m_materialDatabaseMutex;

  TerrainDatabasePtr m_terrainDatabase;
  Mutex m_terrainDatabaseMutex;

  BiomeDatabasePtr m_biomeDatabase;
  Mutex m_biomeDatabaseMutex;

  LiquidsDatabasePtr m_liquidsDatabase;
  Mutex m_liquidsDatabaseMutex;

  StatusEffectDatabasePtr m_statusEffectDatabase;
  Mutex m_statusEffectDatabaseMutex;

  DamageDatabasePtr m_damageDatabase;
  Mutex m_damageDatabaseMutex;

  ParticleDatabasePtr m_particleDatabase;
  Mutex m_particleDatabaseMutex;

  EffectSourceDatabasePtr m_effectSourceDatabase;
  Mutex m_effectSourceDatabaseMutex;

  FunctionDatabasePtr m_functionDatabase;
  Mutex m_functionDatabaseMutex;

  TreasureDatabasePtr m_treasureDatabase;
  Mutex m_treasureDatabaseMutex;

  DungeonDefinitionsPtr m_dungeonDefinitions;
  Mutex m_dungeonDefinitionsMutex;

  TilesetDatabasePtr m_tilesetDatabase;
  Mutex m_tilesetDatabaseMutex;

  StatisticsDatabasePtr m_statisticsDatabase;
  Mutex m_statisticsDatabaseMutex;

  EmoteProcessorPtr m_emoteProcessor;
  Mutex m_emoteProcessorMutex;

  SpeciesDatabasePtr m_speciesDatabase;
  Mutex m_speciesDatabaseMutex;

  ImageMetadataDatabasePtr m_imageMetadataDatabase;
  Mutex m_imageMetadataDatabaseMutex;

  VersioningDatabasePtr m_versioningDatabase;
  Mutex m_versioningDatabaseMutex;

  QuestTemplateDatabasePtr m_questTemplateDatabase;
  Mutex m_questTemplateDatabaseMutex;

  AiDatabasePtr m_aiDatabase;
  Mutex m_aiDatabaseMutex;

  TechDatabasePtr m_techDatabase;
  Mutex m_techDatabaseMutex;

  CodexDatabasePtr m_codexDatabase;
  Mutex m_codexDatabaseMutex;

  BehaviorDatabasePtr m_behaviorDatabase;
  Mutex m_behaviorDatabaseMutex;

  TenantDatabasePtr m_tenantDatabase;
  Mutex m_tenantDatabaseMutex;

  DanceDatabasePtr m_danceDatabase;
  Mutex m_danceDatabaseMutex;

  SpawnTypeDatabasePtr m_spawnTypeDatabase;
  Mutex m_spawnTypeDatabaseMutex;

  RadioMessageDatabasePtr m_radioMessageDatabase;
  Mutex m_radioMessageDatabaseMutex;

  CollectionDatabasePtr m_collectionDatabase;
  Mutex m_collectionDatabaseMutex;
};

}

#endif