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	<id>https://wiki.factorio.com/index.php?action=history&amp;feed=atom&amp;title=User%3AAlfonse%2FLightning_Protection_Field</id>
	<title>User:Alfonse/Lightning Protection Field - Revision history</title>
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	<updated>2026-10-18T23:31:38Z</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:Alfonse/Lightning_Protection_Field&amp;diff=207560&amp;oldid=prev</id>
		<title>Alfonse: A bit more about attractors as a group.</title>
		<link rel="alternate" type="text/html" href="https://wiki.factorio.com/index.php?title=User:Alfonse/Lightning_Protection_Field&amp;diff=207560&amp;oldid=prev"/>
		<updated>2024-12-06T16:24:54Z</updated>

		<summary type="html">&lt;p&gt;A bit more about attractors as a group.&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&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 16:24, 6 December 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Article for describing how the protection range for [[lightning rod]]s and [[lightning collector]]s works.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Article for describing how the protection range for [[lightning rod]]s and [[lightning collector]]s works.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Lightning rod]]s, [[Lightning collector]]s, and [[Fulgoran lightning attractor]]s protect an area from lightning. Their protection range is expressed as a radius, but the way the protection range works is not truly radial. The system uses a [https://en.wikipedia.org/wiki/Distance_transform distance field] to determine whether a tile is under lightning protection.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Lightning rod]]s, [[Lightning collector]]s, and [[Fulgoran lightning attractor]]s protect an area from lightning. Their protection range is expressed as a radius, but the way the protection range works is not truly radial. The system uses a [https://en.wikipedia.org/wiki/Distance_transform distance field] to determine whether a tile is under lightning protection&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. This is what the &quot;+ lightning reach&quot; means.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Rods, collectors, and attractors all use the same lightning protection mechanics (as well as power generation; the fulgoran attractor doesn&#039;t generate power because it has 0% efficiency). For the purpose of talking about their mechanics as a group, this section will refer to all of them as &quot;lightning attractors&quot; (the prototype name shared by all three items)&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Alfonse</name></author>
	</entry>
	<entry>
		<id>https://wiki.factorio.com/index.php?title=User:Alfonse/Lightning_Protection_Field&amp;diff=207558&amp;oldid=prev</id>
		<title>Alfonse: Initial page to describe this.</title>
		<link rel="alternate" type="text/html" href="https://wiki.factorio.com/index.php?title=User:Alfonse/Lightning_Protection_Field&amp;diff=207558&amp;oldid=prev"/>
		<updated>2024-12-06T14:54:17Z</updated>

		<summary type="html">&lt;p&gt;Initial page to describe this.&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Article for describing how the protection range for [[lightning rod]]s and [[lightning collector]]s works.&lt;br /&gt;
&lt;br /&gt;
[[Lightning rod]]s, [[Lightning collector]]s, and [[Fulgoran lightning attractor]]s protect an area from lightning. Their protection range is expressed as a radius, but the way the protection range works is not truly radial. The system uses a [https://en.wikipedia.org/wiki/Distance_transform distance field] to determine whether a tile is under lightning protection.&lt;/div&gt;</summary>
		<author><name>Alfonse</name></author>
	</entry>
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