<!-- 
RSS generated by JIRA (9.12.2#9120002-sha1:301bf498dd45d800842af0b84230f1bb58606c13) at Sun Jan 12 12:12:31 UTC 2025

It is possible to restrict the fields that are returned in this document by specifying the 'field' parameter in your request.
For example, to request only the issue key and summary append 'field=key&field=summary' to the URL of your request.
-->
<rss version="0.92" >
<channel>
    <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-6833] Doubled up TNT Carts creates huge lag (&quot;Nuclear minecarts&quot;)</title>
                <link>https://bugs.mojang.com/browse/MC-6833</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;If you get TNT carts, and just hold down when you place them on a rail, they will be doubled up in the same place. If you then push them, and they are about to fall off the edge, they will get stuck together, yet still continue gaining speed (You can tell from the sound). Furthermore, you can then destroy all the blocks under the connected rails, and the rails will float in mid-air. Eventually, the game will lag-out and crash, because of &quot;ticking entities&quot;&lt;/p&gt;</description>
                <environment>Windows 7 64 Bit&lt;br/&gt;
Java 7</environment>
        <key id="19606">MC-6833</key>
            <summary>Doubled up TNT Carts creates huge lag (&quot;Nuclear minecarts&quot;)</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="dinnerbone">[Mojang] Nathan Adams</assignee>
                                    <reporter username="badboy80">Zachary Freed</reporter>
                        <labels>
                            <label>lag</label>
                            <label>minecart</label>
                            <label>rails</label>
                            <label>tnt</label>
                            <label>tntminecart</label>
                    </labels>
                <created>Thu, 10 Jan 2013 19:12:28 +0100</created>
                <updated>Wed, 3 Apr 2013 15:00:13 +0200</updated>
                            <resolved>Tue, 15 Jan 2013 13:02:31 +0100</resolved>
                                    <version>Snapshot 13w02a</version>
                                    <fixVersion>Snapshot 13w03a</fixVersion>
                                                        <votes>8</votes>
                                    <watches>2</watches>
                                                                            <comments>
                            <comment id="58619" author="acesilentlife" created="Wed, 3 Apr 2013 15:00:13 +0200"  >&lt;p&gt;it still works....guys it just doesnt lag. thats that the problem was. its supossed to do this &lt;/p&gt;</comment>
                            <comment id="42969" author="hihi217" created="Sun, 3 Feb 2013 00:10:57 +0100"  >&lt;p&gt;A small price to pay.&lt;/p&gt;</comment>
                            <comment id="40997" author="howzieky" created="Tue, 29 Jan 2013 23:40:33 +0100"  >&lt;p&gt;but then you dont get the scoreboard :&apos;(&lt;/p&gt;</comment>
                            <comment id="38673" author="hihi217" created="Mon, 21 Jan 2013 00:01:46 +0100"  >&lt;p&gt;Guys, you can still download 13w02a to keep this so called &quot;bug&quot;.&lt;/p&gt;</comment>
                            <comment id="38451" author="howzieky" created="Sun, 20 Jan 2013 05:11:30 +0100"  >&lt;p&gt;NOOOOO! What have you people done!? YOU GOT THIS FIXED!&lt;/p&gt;</comment>
                            <comment id="37712" author="emileriky" created="Fri, 18 Jan 2013 01:01:40 +0100"  >&lt;p&gt;don&apos;t report this bug!!!! its epic!!&lt;/p&gt;


&lt;p&gt;now its fixed.&lt;br/&gt;
:&apos;(&lt;/p&gt;</comment>
                            <comment id="36792" author="ecsos" created="Mon, 14 Jan 2013 20:20:52 +0100"  >&lt;p&gt;attached crash reports related to TNT minecart crash.  minecarts would lag out before even exploding visually.  I just put two on a longer track with an activator in the middle.&lt;/p&gt;</comment>
                            <comment id="36261" author="rippie" created="Sat, 12 Jan 2013 23:41:12 +0100"  >&lt;p&gt;I played last 2 days with this &quot;feature&quot; &lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/biggrin.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt; I really like it, but i think i can tell something about it.&lt;br/&gt;
If you put 2 or more Carts on a long down-track of Boosterrails they will give a huuuuuge explosion at this point, where one cart reach the straight line at the bottom an the following one cross its hitbox. More Speed/Carts=&amp;gt;larger Explosion. With 30 Boosters and 3 Carts i reached a radius of ~3.300!! Blocks. The Explosion will generate a lot of new Chunks and the &quot;rays&quot;  don`t destroy bedrock, but they generate chunks too, if they go through void or air. My Map sized from 3,6MB to 53,6MB with one explosion.&lt;/p&gt;

&lt;p&gt;Ah.. by the way. The Speed and the number of carts is relevant for crashing or exploding &lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/biggrin.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;.&lt;br/&gt;
And i think the order of carts is really important for that. I got more results if i put the last cart at the front. In inverted order they drive through and explodes the regular way.&lt;/p&gt;

&lt;p&gt;I made a Video about this. This one starts at Minute 7:45, where you can see the &quot;Rays&quot; and loaded chunks in Dynmap.  &lt;br/&gt;
&lt;a href=&quot;http://youtu.be/S2EEK1Y2-i8?t=7m41s&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://youtu.be/S2EEK1Y2-i8?t=7m41s&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="35895" author="sidben" created="Sat, 12 Jan 2013 04:34:42 +0100"  >&lt;p&gt;(X-post from &lt;a href=&quot;https://bugs.mojang.com/browse/MC-7194&quot; title=&quot;Game crashes after attempting to place multiple TNT carts on circle of rail&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-7194&quot;&gt;&lt;del&gt;MC-7194&lt;/del&gt;&lt;/a&gt;)&lt;/p&gt;

&lt;p&gt;Made a video of this bug - &lt;a href=&quot;http://www.youtube.com/watch?v=TK4ddR5iUEM&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.youtube.com/watch?v=TK4ddR5iUEM&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Dinnerbone, you must fix this. 2 pigs gave their lifes so this bug report could be made.&lt;/p&gt;</comment>
                            <comment id="35511" author="megascience" created="Fri, 11 Jan 2013 17:13:06 +0100"  >&lt;p&gt;In Snapshot 13w02b, I created a slope of powered rail. At the top, a dispenser with all 9 slots having a Minecart with TNT. I put a Comparator facing facing it and a lever on the other side so it would rapid-fire Minecarts with TNT. I pulled the lever and it sent all nine carts down the track very close together. When the first got to the end of the track, after passing over an Activator Rail, the game slowed down immensely, progressively getting even slower, with all the carts stopped. Eventually, the game crashed with the error report I am submitting. Upon reloading the game, the game held on the dirt background of the menu for a moment while the sound of TNT going off was heard, followed by the world loading normally with a large hole where the carts were.&lt;/p&gt;</comment>
                            <comment id="35422" author="megascience" created="Fri, 11 Jan 2013 10:31:59 +0100"  >&lt;p&gt;I had a Minecart with Furnace and Minecart with Chest on a 4x4 circle of powered rail. When I placed a Minecart with TNT between them, the furnace cart and TNT cart touched. Then all the carts stopped moving, even though the sound got progressively louder. I quickly started getting progressively longer lag spikes, until eventually the game simply froze. Luckily, &lt;a href=&quot;https://bugs.mojang.com/browse/MC-6834&quot; title=&quot;TNT Minecarts Disappear on Reload&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-6834&quot;&gt;&lt;del&gt;MC-6834&lt;/del&gt;&lt;/a&gt; prevented this bug from continuing on reload, since the TNT cart wasn&apos;t reloaded.&lt;/p&gt;</comment>
                            <comment id="35282" author="hunter64" created="Fri, 11 Jan 2013 01:56:55 +0100"  >&lt;p&gt;If you use only two carts or so you&apos;ll notice their is an explosion followed by the lag. However in my testing McEdit is required to remove all of the dropped items to actually see the effect. I&apos;ve provided two screenshots from McEdit of the effects (titled double_tntcart_effect etc.). Using three carts my client simply crashes. NOTE: I was only using two, I got the effect when pushing them OFF a rail.&lt;/p&gt;</comment>
                            <comment id="34941" author="fer22f" created="Thu, 10 Jan 2013 19:30:34 +0100"  >&lt;p&gt;I also posted this bug: &lt;a href=&quot;https://bugs.mojang.com/browse/MC-6841&quot; title=&quot;Minecarts enter within themselfs and starts moving indepently&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-6841&quot;&gt;&lt;del&gt;MC-6841&lt;/del&gt;&lt;/a&gt; that when minecarts are doubled they start to move indepently. Hopes to get fixed!&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="19575">MC-6804</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="19661">MC-6886</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="19799">MC-7021</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="19822">MC-7044</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="19973">MC-7194</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="20003">MC-7224</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="20038">MC-7256</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="20108">MC-7324</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="20314">MC-7517</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                    </issuelinks>
                <attachments>
                            <attachment id="17917" name="2013-01-10_18.10.06.png" size="1259165" author="badboy80" created="Thu, 10 Jan 2013 19:12:28 +0100"/>
                            <attachment id="18231" name="crash-2013-01-11_10.49.30-server.txt" size="3512" author="megascience" created="Fri, 11 Jan 2013 17:14:27 +0100"/>
                            <attachment id="18719" name="crash-2013-01-14_13.10.44-server.txt" size="4101" author="ecsos" created="Mon, 14 Jan 2013 20:20:52 +0100"/>
                            <attachment id="18720" name="crash-2013-01-14_13.12.25-server.txt" size="2832" author="ecsos" created="Mon, 14 Jan 2013 20:20:52 +0100"/>
                            <attachment id="18103" name="doubled_tntcart_effect_topview.jpg" size="173846" author="hunter64" created="Fri, 11 Jan 2013 01:56:43 +0100"/>
                            <attachment id="18102" name="doubled_tntcart_effect_underground.jpg" size="99905" author="hunter64" created="Fri, 11 Jan 2013 01:55:43 +0100"/>
                    </attachments>
                <subtasks>
                    </subtasks>
                <customfields>
                                                                                                                                                                                                                        <customfield id="customfield_10500" key="com.atlassian.jira.plugin.system.customfieldtypes:radiobuttons">
                        <customfieldname>Confirmation Status</customfieldname>
                        <customfieldvalues>
                                <customfieldvalue key="10300"><![CDATA[Unconfirmed]]></customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                        <customfield id="customfield_11700" key="com.atlassian.jira.plugins.jira-development-integration-plugin:devsummary">
                        <customfieldname>Development</customfieldname>
                        <customfieldvalues>
                            
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                <customfield id="customfield_11100" key="com.atlassian.jira.plugin.system.customfieldtypes:float">
                        <customfieldname>Linked</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>9.0</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                <customfield id="customfield_11600" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>Rank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>0|i0h9ov:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                    </customfields>
    </item>
</channel>
</rss>