136 lines
3.8 KiB
JavaScript
136 lines
3.8 KiB
JavaScript
/*
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oolite-contracts-helpers.js
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Helper functions for various types of contracts
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Oolite
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Copyright © 2004-2013 Giles C Williams and contributors
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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*/
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/*jslint white: true, undef: true, eqeqeq: true, bitwise: true, regexp: true, newcap: true, immed: true */
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/*global galaxyNumber, missionVariables, system*/
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"use strict";
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this.name = "oolite-contracts-helpers";
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this.author = "cim";
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this.copyright = "© 2012-2013 the Oolite team.";
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this.description = "Helper functions for various contracts.";
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this.version = "1.79";
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// returns a string containing the necessary number of "hair spaces" to
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// pad the currentText string to the specified length in 'em'
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this._paddingText = function(currentText, desiredLength)
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{
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var hairSpace = String.fromCharCode(31);
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var currentLength = defaultFont.measureString(currentText);
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var hairSpaceLength = defaultFont.measureString(hairSpace);
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// calculate number needed to fill remaining length
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var padsNeeded = Math.floor((desiredLength - currentLength) / hairSpaceLength);
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if (padsNeeded < 1)
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{
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return "";
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}
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// quick way of generating a repeated string of that number
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return new Array(padsNeeded).join(hairSpace);
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}
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// gives a text description of the time remaining to deliver this contract
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this._timeRemaining = function(contract)
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{
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return this._formatTravelTime(this._timeRemainingSeconds(contract));
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}
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this._timeRemainingSeconds = function(contract) {
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return contract.deadline - clock.seconds;
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}
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// gives a text description of a reasonable travel time to fulfil contract
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this._timeEstimate = function(contract)
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{
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// allow 30 minutes in each system on the shortest route
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return this._formatTravelTime(this._timeEstimateSeconds(contract));
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}
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this._timeEstimateSeconds = function(contract)
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{
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return (contract.route.time * 3600) + (contract.route.route.length * 1800);
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}
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// format the travel time
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this._formatTravelTime = function(seconds) {
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// this function uses an hours-only format
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// but provides enough information to use a days&hours format if
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// oolite-contracts-time-format in missiontext.plist is overridden
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// extra minutes are discarded
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var hours = Math.floor(seconds/3600);
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var days = Math.floor(hours/24);
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var spareHours = hours % 24;
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return expandMissionText("oolite-contracts-time-format",{
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"oolite-contracts-time-format-hours": hours,
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"oolite-contracts-time-format-days": days,
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"oolite-contracts-time-format-spare-hours": spareHours
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});
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}
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// summarises economy and government in system
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this._systemName = function(id)
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{
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var info = System.infoForSystem(galaxyNumber,id);
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var name = info.name+" (";
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name += String.fromCharCode(info.government); //chr 0-7 are gov icons
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name += ",";
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name += String.fromCharCode(23-info.economy); //chr 16-23 are eco icons, in reverse order...
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return name +")";
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}
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// sounds
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this._soundSuccess = function()
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{
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var sound = new SoundSource;
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sound.sound = "[contract-accepted]";
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sound.play();
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}
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this._soundFailure = function()
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{
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var sound = new SoundSource;
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sound.sound = "[contract-rejected]";
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sound.play();
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}
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// player skill calculation
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this._playerSkill = function(rep)
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{
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return ((rep*10) + (Math.min(70,Math.sqrt(player.score))))/2;
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} |