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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>
    </build-info>


<item>
            <title>[MC-4132] Piston placement issue past 16777217</title>
                <link>https://bugs.mojang.com/browse/MC-4132</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;If try to place a piston past 16777217 (or -16777217) facing upwards, it is very difficult to place it upward in certain places. Along the x 16777217 (and subsequent lines) moving north/south, it is possible to place upward in strange ways, and also along the z 16777217 line and subsequent. I have not been able to figure out how to place it every time yet, although it seems to be related to the South/East direction.&lt;/p&gt;

&lt;p&gt;Happens both in Survival and Creative with both Sticky and Regular Pistons. &lt;/p&gt;

&lt;p&gt;I have uploaded a video showing this:&lt;br/&gt;
&lt;a href=&quot;http://www.youtube.com/watch?v=TKuiymEN5zc&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.youtube.com/watch?v=TKuiymEN5zc&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;From &lt;a href=&quot;https://bugs.mojang.com/browse/MC-88328&quot; title=&quot;Cannot place upwards / downwards facing pistons and commands blocks near world end&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-88328&quot;&gt;&lt;del&gt;MC-88328&lt;/del&gt;&lt;/a&gt;:&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;Affected coordinates in a chunk:&lt;br/&gt;
1&lt;br/&gt;
5&lt;br/&gt;
9&lt;br/&gt;
13&lt;br/&gt;
The screenshot shows the result of trying to place pistons facing upwards. The lapis lazuli blocks mark the 0,0 corner; the redstone blocks mark the 15,15 corner.&lt;/p&gt;&lt;/blockquote&gt;
&lt;hr /&gt;
&lt;p&gt;Code analysis by &lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=marcono1234&quot; class=&quot;user-hover&quot; rel=&quot;marcono1234&quot;&gt;marcono1234&lt;/a&gt;: &lt;a href=&quot;https://bugs.mojang.com/browse/MC-4132?focusedCommentId=320335&amp;amp;page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-320335&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://bugs.mojang.com/browse/MC-4132?focusedCommentId=320335&amp;amp;page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-320335&lt;/a&gt;&lt;/p&gt;</description>
                <environment>Singleplayer&lt;br/&gt;
OS X 10.7.5/10.9.4&lt;br/&gt;
Java 1.6.0_37/1.6.0_65</environment>
        <key id="16552">MC-4132</key>
            <summary>Piston placement issue past 16777217</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="grum">[Mojang] Grum (Erik Broes)</assignee>
                                    <reporter username="laniner">Eric Lanini</reporter>
                        <labels>
                            <label>precision-loss</label>
                    </labels>
                <created>Wed, 5 Dec 2012 01:24:16 +0100</created>
                <updated>Sun, 12 Jul 2020 21:57:39 +0200</updated>
                            <resolved>Wed, 5 Oct 2016 21:14:56 +0200</resolved>
                                    <version>Minecraft 1.4.4</version>
                    <version>Minecraft 1.4.5</version>
                    <version>Minecraft 1.8</version>
                    <version>Minecraft 1.8.1</version>
                    <version>Minecraft 1.8.4</version>
                    <version>Minecraft 1.8.6</version>
                    <version>Minecraft 15w44a</version>
                    <version>Minecraft 1.10.2</version>
                    <version>Minecraft 16w32a</version>
                    <version>Minecraft 16w32b</version>
                    <version>Minecraft 16w33a</version>
                    <version>Minecraft 16w35a</version>
                                    <fixVersion>Minecraft 16w40a</fixVersion>
                                                        <votes>4</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="320337" author="marcono1234" created="Sun, 10 Jul 2016 16:38:50 +0200"  >&lt;p&gt;Relates to &lt;a href=&quot;https://bugs.mojang.com/browse/MC-88330&quot; title=&quot;Textures and Effects are off when far away from the center of the map&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-88330&quot;&gt;&lt;del&gt;MC-88330&lt;/del&gt;&lt;/a&gt; (new version of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-3718&quot; title=&quot;Textures and Effects are off when far away from the center of the map&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-3718&quot;&gt;&lt;del&gt;MC-3718&lt;/del&gt;&lt;/a&gt;)&lt;/p&gt;</comment>
                            <comment id="320335" author="marcono1234" created="Sun, 10 Jul 2016 16:13:34 +0200"  >&lt;p&gt;Please link to this comment in the description&lt;/p&gt;

&lt;p&gt;The following is based on a decompiled version of Minecraft 1.10 using MCP 9.30.&lt;/p&gt;

&lt;p&gt;The reason for this is that the method &lt;tt&gt;net.minecraft.block.BlockPistonBase.getFacingFromEntity(BlockPos, EntityLivingBase)&lt;/tt&gt; casts the positions to floats which causes a precision loss. Keeping them as doubles solves this.&lt;/p&gt;</comment>
                            <comment id="259297" author="swekob" created="Wed, 28 Oct 2015 21:33:44 +0100"  >&lt;p&gt;Confirmed for 15w44a.&lt;/p&gt;</comment>
                            <comment id="220067" author="kumasasa" created="Mon, 23 Feb 2015 14:42:43 +0100"  >&lt;p&gt;@&lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=Mwhatley&quot; class=&quot;user-hover&quot; rel=&quot;Mwhatley&quot;&gt;Mwhatley&lt;/a&gt;: This bug tracker is only for Minecraft PC edition.&lt;/p&gt;</comment>
                            <comment id="220065" author="mwhatley" created="Mon, 23 Feb 2015 14:16:51 +0100"  >&lt;p&gt;I have not been able to place a piston facing up anywhere for the past few weeks.  Tried every different placement direction possible.  Never had this problem before. Using x-box one.&lt;/p&gt;</comment>
                            <comment id="200894" author="nocreepersallowed1066" created="Sat, 20 Sep 2014 21:34:32 +0200"  >&lt;p&gt;Oh,OK&lt;/p&gt;</comment>
                            <comment id="200884" author="stevennl2000" created="Sat, 20 Sep 2014 20:56:53 +0200"  >&lt;p&gt;&lt;a href=&quot;https://bugs.mojang.com/browse/MC-3718&quot; title=&quot;Textures and Effects are off when far away from the center of the map&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-3718&quot;&gt;&lt;del&gt;MC-3718&lt;/del&gt;&lt;/a&gt; is talking about different numbers, so it&apos;s not a duplicate. Also, &lt;a href=&quot;https://bugs.mojang.com/browse/MC-3718&quot; title=&quot;Textures and Effects are off when far away from the center of the map&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-3718&quot;&gt;&lt;del&gt;MC-3718&lt;/del&gt;&lt;/a&gt; was fixed in 14w32a, while this one is present in 1.8.&lt;/p&gt;</comment>
                            <comment id="200847" author="nocreepersallowed1066" created="Sat, 20 Sep 2014 17:42:10 +0200"  >&lt;p&gt;Duplicate of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-3718&quot; title=&quot;Textures and Effects are off when far away from the center of the map&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-3718&quot;&gt;&lt;del&gt;MC-3718&lt;/del&gt;&lt;/a&gt; I think. It is not marked as a duplicate.&lt;/p&gt;</comment>
                            <comment id="200755" author="kumasasa" created="Fri, 19 Sep 2014 22:26:52 +0200"  >&lt;p&gt;16777217 = 0x1000001 = 2 &lt;sup&gt;24&lt;/sup&gt; +1&lt;/p&gt;</comment>
                            <comment id="200732" author="stevennl2000" created="Fri, 19 Sep 2014 21:15:37 +0200"  >&lt;p&gt;&lt;del&gt;This bug just doesn&apos;t make sense, as there is nothing in Java that is limited to or stops at 16777217.&lt;/del&gt; 16777217=0x1000001=2^24+1, as posted below.&lt;/p&gt;</comment>
                            <comment id="200706" author="laniner" created="Fri, 19 Sep 2014 16:59:45 +0200"  >&lt;p&gt;This is still an issue and I have updated the affected version as well as environment.&lt;/p&gt;</comment>
                            <comment id="121422" author="talven81" created="Tue, 26 Nov 2013 20:57:36 +0100"  >&lt;p&gt;No response in 4 months, assuming no longer an issue.&lt;/p&gt;</comment>
                            <comment id="90849" author="kumasasa" created="Sun, 14 Jul 2013 15:24:02 +0200"  >
&lt;p&gt;Is this still a concern in the current Minecraft version? 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="26637" author="laniner" created="Wed, 5 Dec 2012 01:38:13 +0100"  >&lt;p&gt;I have no reason to build that far out, I was just messing around out there and noticed this piston glitch. It doesn&apos;t affect me, and probably wouldn&apos;t affect anyone else, but I wanted to report it, as it is a bug.&lt;/p&gt;

&lt;p&gt;Plus, although it is 16 million out, the world goes all the way out to 30 million; if the chunks are going to be available they should work.&lt;/p&gt;</comment>
                            <comment id="26635" author="mustek" created="Wed, 5 Dec 2012 01:34:52 +0100"  >&lt;p&gt;Can I ask you why you&apos;re building so far out?&lt;br/&gt;
You&apos;ve hit the limitations of the game engine, and stuff will act wonky.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="120931">MC-88328</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                            <issuelinktype id="10103">
                    <name>Relates</name>
                                            <outwardlinks description="relates to">
                                        <issuelink>
            <issuekey id="25551">MC-11416</issuekey>
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            <issuekey id="15859">MC-3718</issuekey>
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                    </issuelinks>
                <attachments>
                            <attachment id="91752" name="2015-05-31_13.13.57.png" size="135520" author="kumasasa" created="Sun, 31 May 2015 13:14:24 +0200"/>
                            <attachment id="103074" name="Piston placing near world end (15w36d).png" size="487106" author="marcono1234" created="Wed, 28 Oct 2015 23:00:57 +0100"/>
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