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	<id>https://wiki.factorio.com/index.php?action=history&amp;feed=atom&amp;title=User%3ASparr%2FCore_Libraries</id>
	<title>User:Sparr/Core Libraries - Revision history</title>
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	<updated>2026-05-17T18:37:38Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.factorio.com/index.php?title=User:Sparr/Core_Libraries&amp;diff=181987&amp;oldid=prev</id>
		<title>Bilka: Bilka moved page Core Libraries to User:Sparr/Core Libraries without leaving a redirect: WIP pages must be in your userspace</title>
		<link rel="alternate" type="text/html" href="https://wiki.factorio.com/index.php?title=User:Sparr/Core_Libraries&amp;diff=181987&amp;oldid=prev"/>
		<updated>2020-08-31T09:13:19Z</updated>

		<summary type="html">&lt;p&gt;Bilka moved page &lt;a href=&quot;/index.php?title=Core_Libraries&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Core Libraries (page does not exist)&quot;&gt;Core Libraries&lt;/a&gt; to &lt;a href=&quot;/User:Sparr/Core_Libraries&quot; title=&quot;User:Sparr/Core Libraries&quot;&gt;User:Sparr/Core Libraries&lt;/a&gt; without leaving a redirect: WIP pages must be in your userspace&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 09:13, 31 August 2020&lt;/td&gt;
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		<author><name>Bilka</name></author>
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	<entry>
		<id>https://wiki.factorio.com/index.php?title=User:Sparr/Core_Libraries&amp;diff=181819&amp;oldid=prev</id>
		<title>Sparr: Initial page creation</title>
		<link rel="alternate" type="text/html" href="https://wiki.factorio.com/index.php?title=User:Sparr/Core_Libraries&amp;diff=181819&amp;oldid=prev"/>
		<updated>2020-08-27T19:07:41Z</updated>

		<summary type="html">&lt;p&gt;Initial page creation&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;The factorio core data includes a collection of lua libraries that are used as part of the core and base game definitions. These libraries can be used when writing new mods.&lt;br /&gt;
&lt;br /&gt;
The latest version of these libraries are visible in [https://github.com/wube/factorio-data/tree/master/core/lualib the Factorio Data git repository].&lt;br /&gt;
&lt;br /&gt;
Usage example (for most libraries):&lt;br /&gt;
&lt;br /&gt;
 local lib_name = require(&amp;quot;lib-name&amp;quot;)&lt;br /&gt;
 lib_name.some_method(...&lt;br /&gt;
&lt;br /&gt;
== autoplace_utils.lua ==&lt;br /&gt;
Helper function(s) for building [https://lua-api.factorio.com/latest/Concepts.html#AutoplaceSpecification autoplace specifications]&lt;br /&gt;
&lt;br /&gt;
== biome-visualization-utils.lua ==&lt;br /&gt;
??&lt;br /&gt;
&lt;br /&gt;
== bonus-gui-ordering.lua ==&lt;br /&gt;
Lookup table for GUI ordering of effect bonuses&lt;br /&gt;
&lt;br /&gt;
== builder.lua ==&lt;br /&gt;
Class for creating entities repeatedly on a timer with a defined set of positions&lt;br /&gt;
&lt;br /&gt;
== camera.lua ==&lt;br /&gt;
Class for managing automatic camera zooming and panning&lt;br /&gt;
&lt;br /&gt;
== circuit-connector-generated-definitions.lua &amp;lt;br /&amp;gt;circuit-connector-sprites.lua ==&lt;br /&gt;
Used to generate definitions for circuit connectors on various entities&lt;br /&gt;
&lt;br /&gt;
== crash-site.lua ==&lt;br /&gt;
Produces the start-of-game crash site entities&lt;br /&gt;
&lt;br /&gt;
== dataloader.lua ==&lt;br /&gt;
Initializes data and defines data.extend() for use in the data stage&lt;br /&gt;
&lt;br /&gt;
== event_handler.lua ==&lt;br /&gt;
Manages remote interfaces and event handlers for multiple libraries in the same mod&lt;br /&gt;
&lt;br /&gt;
== flying_tags.lua ==&lt;br /&gt;
Creates flying text entities that follow another entity&lt;br /&gt;
&lt;br /&gt;
== kill-score.lua ==&lt;br /&gt;
Defines scoring values for kills, relative to production-score.lua&lt;br /&gt;
&lt;br /&gt;
== math2d.lua ==&lt;br /&gt;
Helper functions for manipulating and operating on 2D vectors and areas&lt;br /&gt;
&lt;br /&gt;
== math3d.lua ==&lt;br /&gt;
Helper functions for operating on 2D, 3D, and 4D vectors&lt;br /&gt;
&lt;br /&gt;
== mod-gui.lua ==&lt;br /&gt;
Attempt to standardize abstractions of access to player.gui.left and player.gui.top&lt;br /&gt;
&lt;br /&gt;
== noise/expression-to-ascii-math.lua ==&lt;br /&gt;
??&lt;br /&gt;
&lt;br /&gt;
== noise.lua ==&lt;br /&gt;
Helper functions for manipulating and operating on [[Types/NoiseExpression|noise expressions]]&lt;br /&gt;
&lt;br /&gt;
== production-score.lua ==&lt;br /&gt;
Calculate score value of items produced based on their ingredients&lt;br /&gt;
&lt;br /&gt;
== resource-autoplace.lua ==&lt;br /&gt;
Turns resource patch distribution descriptions into [https://lua-api.factorio.com/latest/Concepts.html#AutoplaceSpecification autoplace specifications]&lt;br /&gt;
&lt;br /&gt;
== silo-script.lua ==&lt;br /&gt;
Handles tracking of rocket launches&lt;br /&gt;
&lt;br /&gt;
== story.lua &amp;lt;br /&amp;gt;story-skeleton.lua ==&lt;br /&gt;
Helpers for building a &amp;quot;story&amp;quot; like the Compilatron tutorial&lt;br /&gt;
&lt;br /&gt;
== util.lua ==&lt;br /&gt;
Many miscellaneous helper functions for dealing with a wide range of things&lt;/div&gt;</summary>
		<author><name>Sparr</name></author>
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