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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-1820] Cannot create world with seed 0</title>
                <link>https://bugs.mojang.com/browse/MC-1820</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;If 0 is entered as the seed in the world generation screen, Minecraft will choose a random seed instead.&lt;/p&gt;</description>
                <environment></environment>
        <key id="13190">MC-1820</key>
            <summary>Cannot create world with seed 0</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="6">Works As Intended</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="immibis">Alex Campbell</reporter>
                        <labels>
                    </labels>
                <created>Fri, 2 Nov 2012 02:44:47 +0100</created>
                <updated>Wed, 19 Jan 2022 19:36:44 +0100</updated>
                            <resolved>Fri, 2 Nov 2012 20:00:18 +0100</resolved>
                                    <version>Minecraft 1.4.2</version>
                                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                            <comments>
                            <comment id="1136872" author="awesoman3000" created="Wed, 19 Jan 2022 19:36:44 +0100"  >&lt;p&gt;Does 22w03a allow this to happen?&lt;/p&gt;</comment>
                            <comment id="822245" author="JIRAUSER509480" created="Wed, 7 Oct 2020 21:20:23 +0200"  >&lt;p&gt;If you want to get the seed 0, type &quot;creashaks organzine&quot;. I also found a pink sheep on this seed.&lt;/p&gt;</comment>
                            <comment id="277167" author="marcono1234" created="Sun, 10 Jan 2016 19:46:30 +0100"  >&lt;p&gt;Duplicates &lt;a href=&quot;https://bugs.mojang.com/browse/MC-44944&quot; title=&quot;&amp;quot;0&amp;quot; is not handled as a valid seed&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-44944&quot;&gt;&lt;del&gt;MC-44944&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="271326" author="fm22" created="Tue, 8 Dec 2015 22:02:25 +0100"  >&lt;p&gt;This is a bug, there is a difference between a valid seed (which is any signed 64 bit number including 0) and a &apos;null&apos; seed which should make it generate based on system time.&lt;/p&gt;</comment>
                            <comment id="120558" author="jeuvke" created="Fri, 22 Nov 2013 18:12:48 +0100"  >&lt;p&gt;I think this is a bug, creating a world and then changing the seed to 0 with an NBT editor works just fine.&lt;/p&gt;</comment>
                            <comment id="17322" author="mustek" created="Fri, 2 Nov 2012 20:15:23 +0100"  >&lt;p&gt;I believe the reason here is that the game treats 0 as no seed given.&lt;br/&gt;
This causes it to randomly roll a seed based on your current system time.&lt;/p&gt;

&lt;p&gt;So AFAIK, this is intended.&lt;/p&gt;</comment>
                            <comment id="17317" author="do" created="Fri, 2 Nov 2012 20:00:18 +0100"  >&lt;p&gt;I don&apos;t see any particular reason to expect 0 to act one way or the other in this situation, so I&apos;m marking this &quot;Works As Intended&quot; until I hear otherwise.&lt;/p&gt;</comment>
                            <comment id="17309" author="do" created="Fri, 2 Nov 2012 19:49:38 +0100"  >&lt;p&gt;There&apos;s also been some confusion in MCPE, which does accept 0, which is treated the same as -0, and 0.1, and in fact any string starting with 0... but there probably would have been just as much confusion if 0 acted like a non-seed.&lt;/p&gt;</comment>
                            <comment id="17301" author="cubethethird" created="Fri, 2 Nov 2012 19:39:20 +0100"  >&lt;p&gt;Yes that would make sense.&lt;/p&gt;</comment>
                            <comment id="17249" author="simons mith" created="Fri, 2 Nov 2012 18:24:48 +0100"  >&lt;p&gt;In multiplayer games the seed is hidden (and displayed as zero) so that you can&apos;t recreate a server world offline, and then loot the online world for stuff you found in the offline version. Given this, forbidding an actual seed of zero makes some sense, even though using seed 0 in an single player game would be harmless.&lt;/p&gt;</comment>
                            <comment id="17166" author="cubethethird" created="Fri, 2 Nov 2012 15:32:51 +0100"  >&lt;p&gt;It is certainly possible that the algorithm doesn&apos;t work with 0, but as a computer scientist, I can almost certainly say that if it works with any other 19 digit numbers, it should also work with 0. I&apos;ve also tried this with -0, and 0000000000000000000, and the behaviour does not change.&lt;/p&gt;</comment>
                            <comment id="16922" author="zombygeek" created="Fri, 2 Nov 2012 02:55:25 +0100"  >&lt;p&gt;I wouldn&apos;t call this a bug. I think it&apos;s intentional. What does minecraft have to work with if you give it nothing? Zero probably breaks the algorithm that&apos;s used to generate the world. I know nothing of algoritims or anything but.. Zero multiplied by anything is zero.&lt;/p&gt;</comment>
                            <comment id="16916" author="cubethethird" created="Fri, 2 Nov 2012 02:48:03 +0100"  >&lt;p&gt;Can confirm&lt;/p&gt;</comment>
                    </comments>
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                                                                <inwardlinks description="relates to">
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            <issuekey id="128608">MC-94025</issuekey>
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