endGame.js

/**
    Copyright 2014 Andrew P. Sillers

    This file is part of Lords of the Fey.

    Lords of the Fey is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Lords of the Fey is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with Lords of the Fey.  If not, see <http://www.gnu.org/licenses/>.
*/
exports.checkForVictory = function checkForVictory(game, collections, callback) {
    var result = { victory: false };
    var teamsWithCommanders = {};
    collections.units.find({ gameId: game._id, isCommander: true }, function(err, cursor) {
        cursor.toArray(function (err, commanderList) {
            commanderList.forEach(function(commander) {
                teamsWithCommanders[commander.team] = true;
            });

            var winningAlliance = null;
            var survivingTeamList = Object.getOwnPropertyNames(teamsWithCommanders);
            console.log(survivingTeamList);
            for(var i=0; i < survivingTeamList.length; ++i) {
                var team = survivingTeamList[i];
                var thisAlliance = game.players[team-1].alliance;
                if(winningAlliance == null) { winningAlliance = thisAlliance }
                if(thisAlliance != winningAlliance) {
                    winningAlliance = null;
                    break;
                }
            }

            if(winningAlliance !== null) {
                result.victory = true;
                result.alliance = winningAlliance;
            }

            callback(result);
        });
    });        
}

exports.concludeGame = function(result, game, collections, callback) {
    game.over = true;
    game.winner = result.alliance;
    collections.units.find({ gameId: game._id.toString() }, function(unitCursor) {
        unitCursor.next(function stripGameId(u) {
            if(!u) { collections.units.save(unitCursor); }
            else {
                delete u.gameId;
            }
        });
    });
}