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	<id>https://wiki.eduke32.com/w/index.php?action=history&amp;feed=atom&amp;title=PROJ_USERDATA</id>
	<title>PROJ USERDATA - Revision history</title>
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	<updated>2026-05-14T21:29:10Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.eduke32.com/w/index.php?title=PROJ_USERDATA&amp;diff=12685&amp;oldid=prev</id>
		<title>TrooperDan: Created page with &quot;PROJ_USERDATA is a defineprojectile property used to store additional data about a projectile which can be checked and acted upon by scripts during gameplay.  Syntax is:...&quot;</title>
		<link rel="alternate" type="text/html" href="https://wiki.eduke32.com/w/index.php?title=PROJ_USERDATA&amp;diff=12685&amp;oldid=prev"/>
		<updated>2019-03-17T19:52:37Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;PROJ_USERDATA is a &lt;a href=&quot;/wiki/Defineprojectile&quot; title=&quot;Defineprojectile&quot;&gt;defineprojectile&lt;/a&gt; property used to store additional data about a projectile which can be checked and acted upon by scripts during gameplay.  Syntax is:...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;PROJ_USERDATA is a [[defineprojectile]] property used to store additional data about a projectile which can be checked and acted upon by scripts during gameplay.&lt;br /&gt;
&lt;br /&gt;
Syntax is:&lt;br /&gt;
&lt;br /&gt;
[[defineprojectile]] &amp;lt;tile number&amp;gt; PROJ_USERDATA &amp;lt;number&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Where &amp;lt;number&amp;gt; is a 32-bit integer.&lt;br /&gt;
&lt;br /&gt;
Suggested use: When an actor is hit by the projectile (as detected with [[ifwasweapon]] or similar), the userdata on that type of projectile can then be checked and linked to additional effects. Treating the userdata as a bitfield can help maximize its usefulness.&lt;br /&gt;
&lt;br /&gt;
[[Category:Projectile_structure_members]]&lt;/div&gt;</summary>
		<author><name>TrooperDan</name></author>
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