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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-1594] Trying to walk from a block with a collision box shorter than 1 block to another block that is also shorter, causes you to momentarily glitch into the ground</title>
                <link>https://bugs.mojang.com/browse/MC-1594</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;If you walk from a block that is shorter than a full block to another block that is also shorter than a full block, but taller than the first, you will momentarily glitch into the original into the block you are walking onto.&lt;br/&gt;
Reproducing:&lt;br/&gt;
1 Place a bed on the ground&lt;br/&gt;
2 Place an enchantment table directly next to the bed&lt;br/&gt;
3 Attempt to walk from the bed onto the enchantment table.&lt;br/&gt;
4 You will glitch down into the enchantment table, then pop back up.&lt;br/&gt;
~ Works with any two blocks as long as neither block is a full block, and you are going onto a block with a taller collision box&lt;/p&gt;</description>
                <environment>All</environment>
        <key id="12935">MC-1594</key>
            <summary>Trying to walk from a block with a collision box shorter than 1 block to another block that is also shorter, causes you to momentarily glitch into the ground</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="1">Fixed</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="silentvenom7">Jordan Doorlag</reporter>
                        <labels>
                            <label>bed</label>
                            <label>collisions</label>
                            <label>hitbox</label>
                            <label>slabs</label>
                            <label>walking</label>
                    </labels>
                <created>Thu, 1 Nov 2012 14:15:08 +0100</created>
                <updated>Wed, 6 May 2015 13:25:13 +0200</updated>
                            <resolved>Fri, 15 Mar 2013 02:40:50 +0100</resolved>
                                    <version>Minecraft 1.4.2</version>
                    <version>Minecraft 1.4.6</version>
                    <version>Minecraft 1.4.7</version>
                    <version>Snapshot 13w01a</version>
                    <version>Snapshot 13w01b</version>
                                    <fixVersion>Minecraft 1.5</fixVersion>
                                                        <votes>6</votes>
                                    <watches>1</watches>
                                                                            <comments>
                            <comment id="34075" author="unclemion" created="Mon, 7 Jan 2013 22:02:17 +0100"  >&lt;p&gt;I can confirm this bug. I had to fix it for my resizing mod to work properly, after it kept causing &quot;illegal stance&quot; errors in multiplayer.&lt;/p&gt;

&lt;p&gt;(Using MCP v7.25 on Minecraft 1.4.6)&lt;/p&gt;

&lt;p&gt;The piece of code that needs to be changed is in the Entity.moveEntity method, in the part right before the Profiler section &quot;rest&quot;, just before where Entity.ySize gets changed:&lt;/p&gt;

&lt;p&gt;double var40 = this.boundingBox.minY - (double)((int)this.boundingBox.minY);&lt;/p&gt;

&lt;p&gt;The &quot;(double)(int)&quot; causes the player to glitch through to the bottom of the short block before getting popped back up. My fix was this:&lt;/p&gt;

&lt;p&gt;double var40 = this.boundingBox.minY - var29.minY;&lt;/p&gt;

&lt;p&gt;Where &quot;var29&quot; was the copy of the entity&apos;s bounding box made before checking block collisions:&lt;/p&gt;

&lt;p&gt;AxisAlignedBB var29 = this.boundingBox.copy();&lt;/p&gt;

&lt;p&gt;I hope this helps &lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/smile.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="17923">MC-5329</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="18683">MC-6024</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="18790">MC-6129</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="11708">MC-442</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="13458">MC-2066</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="14130">MC-2460</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="14509">MC-2737</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="17344">MC-4805</issuekey>
        </issuelink>
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