twelve-heroes/server/src/game-server/games-manager.js

'use strict';
import OnlineDuelSync from './online-duel-sync';
const fs = require('fs');
const path = require('path');
export default function GamesManager(ioServer, mariadbConn) {
  let currentGames = new Map();

  // We create Heroes data from JSON file, it will be needed by the duelController
  // DuelController has no dependency to browser env nor node env. So it cannot read the
  // file itself (not same mechanism, in node we use fs readFileSync)
  // Read once here for all the games to come
  let allHeroesJson = JSON.parse(
    fs.readFileSync(
      path.resolve(__dirname, '../client-server-shared/all-heroes.json')
    )
  );

  // Method to add player into a game, create or add to game syncer
  let addPlayerInGame = function(
    player,
    gameId,
    joinCreatedGame,
    isNewGame = false,
    gameOptions = {}
  ) {
    if (currentGames.has(gameId)) {
      player.isPlayingGameId = gameId;
      let duelSync = currentGames.get(gameId);
      return duelSync.addPlayer(player);
    } else if (joinCreatedGame === false) {
      player.isPlayingGameId = gameId;
      currentGames.set(
        gameId,
        new OnlineDuelSync(
          ioServer,
          mariadbConn,
          gameId,
          player,
          isNewGame,
          gameOptions,
          allHeroesJson
        )
      );
      return true;

      // We are supposed to join a new game, but not there, must have been deleted in the meantime
    } else {
      console.log(
        'error : ' +
          player.playerName +
          ' tries to join a created game that does not exist anymore'
      );
      return false;
    }
  };

  let playerLeft = function(player, disconnected) {
    let id = player.isPlayingGameId;

    if (currentGames.has(id)) {
      currentGames.get(id).playerLeft(player, disconnected);
      if (!currentGames.get(id).hasPlayers()) {
        // If it was new created game, don't set it to pause, game will be removed
        if (!currentGames.get(id).isNewlyCreatedGame()) {
          mariadbConn.updateGameStatus(id, 'PAUSED');
        }
        currentGames.delete(id);
      }
    }

    player.isPlayingGameId = -1;
  };

  return {
    addPlayerInGame,
    playerLeft
  };
}