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    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
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<item>
            <title>[MC-5397] Mob AI allows mobs to fall into the void</title>
                <link>https://bugs.mojang.com/browse/MC-5397</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;What I expected to happen was...:&lt;br/&gt;
The Mobs would not allow themselves to fall into the void.&lt;/p&gt;

&lt;p&gt;What Actually Happened was:&lt;br/&gt;
The mobs Fell into the void. (watch the whole video)&lt;br/&gt;
&lt;a href=&quot;http://www.youtube.com/watch?v=77U7k1tRjkE&amp;amp;feature=youtu.be&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.youtube.com/watch?v=77U7k1tRjkE&amp;amp;feature=youtu.be&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Steps to Reproduce:&lt;br/&gt;
1. Dig down near the void, make sure the void is accessable.&lt;br/&gt;
2. Spawn a mob on a block&lt;br/&gt;
3. Wait for it to move, or make it move (without pushing) into the void.&lt;/p&gt;

&lt;p&gt;It happens because the Mob AI looks for air blocks, But there are no air blocks in the void.&lt;/p&gt;

&lt;p&gt;DUPLICATE OF CLOSED ISSUE &lt;a href=&quot;https://bugs.mojang.com/browse/MC-3151&quot; title=&quot;New Mob AI doesn&amp;#39;t take world limit/Void into account for pathing&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-3151&quot;&gt;&lt;del&gt;MC-3151&lt;/del&gt;&lt;/a&gt;, The issue was labeled as &quot;invalid&quot; I now have proof that it is not invalid. &lt;/p&gt;</description>
                <environment></environment>
        <key id="18000">MC-5397</key>
            <summary>Mob AI allows mobs to fall into the void</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="gamebuster19901">Jason</reporter>
                        <labels>
                            <label>mob</label>
                            <label>void</label>
                            <label>world</label>
                    </labels>
                <created>Thu, 27 Dec 2012 01:29:23 +0100</created>
                <updated>Mon, 7 Sep 2015 19:41:11 +0200</updated>
                            <resolved>Mon, 24 Feb 2014 20:54:11 +0100</resolved>
                                    <version>Minecraft 1.4.5</version>
                    <version>Minecraft 1.4.6</version>
                    <version>Minecraft 1.4.7</version>
                    <version>Snapshot 13w07a</version>
                    <version>Snapshot 13w09a</version>
                    <version>Snapshot 13w09b</version>
                    <version>Minecraft 1.5</version>
                    <version>Snapshot 13w11a</version>
                    <version>Minecraft 1.7.4</version>
                    <version>Minecraft 14w08a</version>
                                                                        <votes>5</votes>
                                    <watches>5</watches>
                                                                            <comments>
                            <comment id="142946" author="kumasasa" created="Mon, 24 Feb 2014 20:54:12 +0100"  >&lt;p&gt;Resolved back to &lt;a href=&quot;https://bugs.mojang.com/browse/MC-3151&quot; title=&quot;New Mob AI doesn&amp;#39;t take world limit/Void into account for pathing&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-3151&quot;&gt;&lt;del&gt;MC-3151&lt;/del&gt;&lt;/a&gt;, since that ticket was reopened.&lt;br/&gt;
Fix by Markku attached there.&lt;/p&gt;</comment>
                            <comment id="142942" author="garyclosse" created="Mon, 24 Feb 2014 20:50:42 +0100"  >&lt;p&gt;Still an issue in 1.7.4 and 1.8 snapshots&lt;/p&gt;</comment>
                            <comment id="142846" author="ezekielelin" created="Mon, 24 Feb 2014 15:20:04 +0100"  >&lt;p&gt;Is this still a concern in the latest Minecraft version &lt;b&gt;14w08a&lt;/b&gt;? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;</comment>
                            <comment id="48447" author="bugi74" created="Thu, 28 Feb 2013 21:02:31 +0100"  >&lt;p&gt;Affects 13w09b.&lt;/p&gt;</comment>
                            <comment id="46700" author="bugi74" created="Wed, 20 Feb 2013 11:33:41 +0100"  >&lt;p&gt;&lt;b&gt;Possible fix&lt;/b&gt;&lt;br/&gt;
Using MCP naming.&lt;/p&gt;
&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeHeader panelHeader&quot; style=&quot;border-bottom-width: 1px;&quot;&gt;&lt;b&gt;PathFinder.getSafePoint()&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;        ...
        &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (var9++ &amp;gt;= entity.func_82143_as()) {
            &lt;span class=&quot;code-keyword&quot;&gt;return&lt;/span&gt; &lt;span class=&quot;code-keyword&quot;&gt;null&lt;/span&gt;;
        }

        --y;

        &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (y &amp;gt; 0) {
            var7 = &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.openPoint(x, y, z); &lt;span class=&quot;code-comment&quot;&gt;// Accept a point in mid air, eh?
&lt;/span&gt;        } &lt;span class=&quot;code-keyword&quot;&gt;else&lt;/span&gt; {         &lt;span class=&quot;code-comment&quot;&gt;// FIX: lets cancel that possible mid air point &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; reached void.
&lt;/span&gt;            &lt;span class=&quot;code-keyword&quot;&gt;return&lt;/span&gt; &lt;span class=&quot;code-keyword&quot;&gt;null&lt;/span&gt;; &lt;span class=&quot;code-comment&quot;&gt;// FIX
&lt;/span&gt;        }                &lt;span class=&quot;code-comment&quot;&gt;// FIX
&lt;/span&gt;    ...
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;Tested on 1.4.7 and at least creepers learned to look down.&lt;/p&gt;</comment>
                            <comment id="32484" author="gamebuster19901" created="Fri, 4 Jan 2013 02:04:22 +0100"  >&lt;p&gt;Bump, no response.&lt;/p&gt;</comment>
                            <comment id="31283" author="gamebuster19901" created="Fri, 28 Dec 2012 22:29:31 +0100"  >&lt;p&gt;This is very annoying, I&apos;m trying to make a survival island map, and mobs keep falling into the void!&lt;/p&gt;

&lt;p&gt;I guess I hust have to use a map editor to adjust the y-coords of my island...&lt;/p&gt;</comment>
                    </comments>
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                    <name>Duplicate</name>
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                                        <issuelink>
            <issuekey id="15088">MC-3151</issuekey>
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