Ship Comparison

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Revision as of 06:13, 11 August 2017 by Phkb (talk | contribs) (Overriding Data)
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This OXP aims to help players who are in the market for a new ship by providing a visual, side-by-side comparison of ship specifications.

A new interface screen "Ship Comparisons" allows the details of up to three ships to be displayed. Details included are:

  • Max speed
  • Injector speed
  • Max thrust
  • Max pitch
  • Max roll
  • Max yaw
  • Weapon positions
  • Missile pylons
  • Cargo capacity (plus expansion size)
  • Energy banks
  • Energy recharge rate
  • Hyperspace capable

If Ship Configuration is installed:

  • Ship mass
  • Equipment space (plus convertible cargo space)

Overriding Data

If a particular ship needs to have it's own entry, even if it would normally be listed under another ship type, you can override the list entry for that data key. Put this into the startUpComplete routine of your OXP:

 var sc = worldScripts.ShipComparison;
 if (sc) {
   // add an override for a particular ship data key, giving it a new name
   sc._override["noshaders_z_groovy_cobra1_baker_player"] = "Cobra Mark I Special";

If a particular ship is not displaying the correct value for additional cargo or for the number of weapon facings, these values can be added to a list of exceptions. To do this, simply add the following line of code to a worldScript:

 worldScripts.ShipComparison._extraData["Cobra Mark I Special"] = [5, 15];

Use the generic ship name when specifying the dictionary key (unless you are updating the details of a specific shipkey). The two values in the array are the extra cargo allocation (5 in the example), and the number of weapon facings (1 = front, 2 = aft, 4 = port, 8 = starboard: 3 means front and aft, 15 means all).


Place the 'ShipComparison.oxz' into your 'AddOns' folder and when you start the game, hold down 'Shift' until you see the spinning Cobra.
Alternatively, you can download the expansion using the expansion pack manager in the game itself.


Download ShipComparison.oxz v1.8 (downloaded 2772 times).


This work is licensed under the Creative Commons Attribution-Noncommercial-Share Alike 4.0 Unported License. To view a copy of this license, visit

Balance image from

Version History


  • Added Cobra Mark IV to list of exceptions.


  • Changed "==" comparisons to "===" for performance improvements.
  • Added ship mass to display (only if "Ship Configuration" OXP v0.3.1 is installed)
  • Moved the F4 interface to "Ship Systems", putting it near "Ship Registrations".


  • Fixed Javascript error when attempting to check for script_info objects on ships that don't have any script_info defined.


  • Added ability to hide ships via script info.


  • Added Equipment space from "Ship Configuration" OXP v0.1.0 or later. Only available if that OXP is installed.
  • Additional ship data overrides.


  • Added a "+" symbol to extra cargo value to make it clearer it is in addition to the base cargo capacity.
  • Additional ship data overrides.
  • Added dictionary and code examples to allow OXP's to override ship data for a particular data key.


  • Added cargo expansion size to list of items.
  • Fixed issue where missing "weapon_facings" value was not defaulting to the correct value. If any ships has been missed or show up incorrectly just let me know.
  • Added a "change scroll direction" function so if you go past the ship you want to can turn around and go back, rather than having to scroll all the way around the list.


  • Fixed issue where some ship definitions were incorrectly showing with "0" missiles.
  • Fixed issue where some ship definitions were showing a blank in the cargo capacity field.
  • Added code to hide specifications of some ships (classified data and such).


  • Initial release.

Quick Facts

Config options available through 'Library'

Version Released License Features Category Author(s) Feedback
1.8 2017-08-11 CC BY-NC-SA 4.0 Ship Comparison Misc OXPs phkb Oolite BB

Gameplay and Balance indicator