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<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-1127] Walking on blocks less than 1 block tall placed on ice, slime blocks or honey blocks acts like walking on ice, slime block or honey blocks directly</title>
                <link>https://bugs.mojang.com/browse/MC-1127</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;Place some slabs on an ice/slime block and walk on them. You will have a strange slippy/sticky walking behavior like you would be directly on the ice/slime block. Also works with End Portal Frames and other blocks not being as tall as a full block (Soul Sand, chests, stairs, ...).&lt;/p&gt;</description>
                <environment></environment>
        <key id="12436">MC-1127</key>
            <summary>Walking on blocks less than 1 block tall placed on ice, slime blocks or honey blocks acts like walking on ice, slime block or honey blocks directly</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="miwob">[Mod] Michael Wobst</reporter>
                        <labels>
                            <label>ice</label>
                            <label>slime_block</label>
                    </labels>
                <created>Mon, 29 Oct 2012 12:06:49 +0100</created>
                <updated>Fri, 30 Aug 2024 18:01:59 +0200</updated>
                            <resolved>Wed, 12 Feb 2020 16:18:46 +0100</resolved>
                                    <version>Minecraft 1.4.2</version>
                    <version>Minecraft 1.4.5</version>
                    <version>Minecraft 1.4.7</version>
                    <version>Snapshot 13w06a</version>
                    <version>Snapshot 13w07a</version>
                    <version>Snapshot 13w09a</version>
                    <version>Snapshot 13w09b</version>
                    <version>Snapshot 13w09c</version>
                    <version>Snapshot 13w10a</version>
                    <version>Snapshot 13w10b</version>
                    <version>Minecraft 1.5</version>
                    <version>Snapshot 13w11a</version>
                    <version>Minecraft 1.5.1</version>
                    <version>Snapshot 13w16a</version>
                    <version>Snapshot 13w16b</version>
                    <version>Minecraft 1.5.2</version>
                    <version>Snapshot 13w17a</version>
                    <version>Snapshot 13w18a</version>
                    <version>Snapshot 13w18b</version>
                    <version>Snapshot 13w18c</version>
                    <version>Snapshot 13w19a</version>
                    <version>Snapshot 13w21a</version>
                    <version>Snapshot 13w21b</version>
                    <version>Snapshot 13w22a</version>
                    <version>Snapshot 13w23a</version>
                    <version>Snapshot 13w23b</version>
                    <version>Snapshot 13w24a</version>
                    <version>Snapshot 13w24b</version>
                    <version>Snapshot 13w25a</version>
                    <version>Snapshot 13w25b</version>
                    <version>Snapshot 13w25c</version>
                    <version>Snapshot 13w26a</version>
                    <version>Minecraft 1.6</version>
                    <version>Minecraft 1.6.1</version>
                    <version>Minecraft 1.6.2</version>
                    <version>Minecraft 1.6.3</version>
                    <version>Minecraft 1.6.4</version>
                    <version>Minecraft 13w36a</version>
                    <version>Minecraft 13w36b</version>
                    <version>Minecraft 13w37a</version>
                    <version>Minecraft 13w37b</version>
                    <version>Minecraft 13w38a</version>
                    <version>Minecraft 13w38b</version>
                    <version>Minecraft 13w38c</version>
                    <version>Minecraft 13w39a</version>
                    <version>Minecraft 13w39b</version>
                    <version>Minecraft 13w41a</version>
                    <version>Minecraft 13w41b</version>
                    <version>Minecraft 13w42a</version>
                    <version>Minecraft 13w42b</version>
                    <version>Minecraft 13w43a</version>
                    <version>Minecraft 1.7</version>
                    <version>Minecraft 1.7.1</version>
                    <version>Minecraft 1.7.2</version>
                    <version>Minecraft 13w47a</version>
                    <version>Minecraft 13w47b</version>
                    <version>Minecraft 13w47c</version>
                    <version>Minecraft 13w47d</version>
                    <version>Minecraft 13w47e</version>
                    <version>Minecraft 13w48a</version>
                    <version>Minecraft 13w48b</version>
                    <version>Minecraft 13w49a</version>
                    <version>Minecraft 1.7.3</version>
                    <version>Minecraft 1.7.4</version>
                    <version>Minecraft 14w02a</version>
                    <version>Minecraft 14w02b</version>
                    <version>Minecraft 14w02c</version>
                    <version>Minecraft 14w03b</version>
                    <version>Minecraft 14w04a</version>
                    <version>Minecraft 14w04b</version>
                    <version>Minecraft 14w05a</version>
                    <version>Minecraft 14w05b</version>
                    <version>Minecraft 14w06a</version>
                    <version>Minecraft 14w06b</version>
                    <version>Minecraft 14w07a</version>
                    <version>Minecraft 1.7.5</version>
                    <version>Minecraft 14w11b</version>
                    <version>Minecraft 1.7.9</version>
                    <version>Minecraft 14w17a</version>
                    <version>Minecraft 14w20b</version>
                    <version>Minecraft 14w21a</version>
                    <version>Minecraft 14w21b</version>
                    <version>Minecraft 14w27b</version>
                    <version>Minecraft 14w29b</version>
                    <version>Minecraft 14w30c</version>
                    <version>Minecraft 14w32a</version>
                    <version>Minecraft 1.8-pre1</version>
                    <version>Minecraft 1.8-pre2</version>
                    <version>Minecraft 1.8</version>
                    <version>Minecraft 1.8.1-pre3</version>
                    <version>Minecraft 1.8.1</version>
                    <version>Minecraft 1.8.8</version>
                    <version>Minecraft 15w31a</version>
                    <version>Minecraft 15w31b</version>
                    <version>Minecraft 15w38a</version>
                    <version>Minecraft 15w42a</version>
                    <version>Minecraft 15w43b</version>
                    <version>Minecraft 15w43c</version>
                    <version>Minecraft 15w44a</version>
                    <version>Minecraft 15w44b</version>
                    <version>Minecraft 15w45a</version>
                    <version>Minecraft 15w46a</version>
                    <version>Minecraft 15w47a</version>
                    <version>Minecraft 15w47c</version>
                    <version>Minecraft 15w49a</version>
                    <version>Minecraft 15w49b</version>
                    <version>Minecraft 1.8.9</version>
                    <version>Minecraft 15w50a</version>
                    <version>Minecraft 15w51a</version>
                    <version>Minecraft 15w51b</version>
                    <version>Minecraft 16w02a</version>
                    <version>Minecraft 16w03a</version>
                    <version>Minecraft 16w04a</version>
                    <version>Minecraft 16w05b</version>
                    <version>Minecraft 16w06a</version>
                    <version>Minecraft 16w07a</version>
                    <version>Minecraft 16w07b</version>
                    <version>Minecraft 1.9 Pre-Release 1</version>
                    <version>Minecraft 1.9 Pre-Release 3</version>
                    <version>Minecraft 1.9.1 Pre-Release 3</version>
                    <version>Minecraft 1.9.1</version>
                    <version>Minecraft 1.9.2</version>
                    <version>Minecraft 16w14a</version>
                    <version>Minecraft 1.9.3 Pre-Release 3</version>
                    <version>Minecraft 1.9.4</version>
                    <version>Minecraft 16w20a</version>
                    <version>Minecraft 16w21a</version>
                    <version>Minecraft 16w21b</version>
                    <version>Minecraft 1.10 Pre-Release 1</version>
                    <version>Minecraft 1.10 Pre-Release 2</version>
                    <version>Minecraft 1.10</version>
                    <version>Minecraft 1.10.1</version>
                    <version>Minecraft 1.10.2</version>
                    <version>Minecraft 16w32a</version>
                    <version>Minecraft 16w32b</version>
                    <version>Minecraft 16w33a</version>
                    <version>Minecraft 16w35a</version>
                    <version>Minecraft 16w38a</version>
                    <version>Minecraft 16w40a</version>
                    <version>Minecraft 16w41a</version>
                    <version>Minecraft 16w42a</version>
                    <version>Minecraft 16w43a</version>
                    <version>Minecraft 16w44a</version>
                    <version>Minecraft 1.11 Pre-Release 1</version>
                    <version>Minecraft 1.11</version>
                    <version>Minecraft 16w50a</version>
                    <version>Minecraft 1.11.2</version>
                    <version>Minecraft 17w06a</version>
                    <version>Minecraft 17w17a</version>
                    <version>Minecraft 17w17b</version>
                    <version>Minecraft 1.12 Pre-Release 5</version>
                    <version>Minecraft 1.12 Pre-Release 6</version>
                    <version>Minecraft 1.12</version>
                    <version>Minecraft 1.12.1</version>
                    <version>Minecraft 1.12.2</version>
                    <version>Minecraft 17w50a</version>
                    <version>Minecraft 18w16a</version>
                    <version>Minecraft 1.13-pre3</version>
                    <version>Minecraft 1.13.1</version>
                    <version>Minecraft 1.13.2</version>
                    <version>Minecraft 18w46a</version>
                    <version>Minecraft 18w47a</version>
                    <version>Minecraft 18w47b</version>
                    <version>Minecraft 18w48a</version>
                    <version>Minecraft 18w48b</version>
                    <version>Minecraft 18w49a</version>
                    <version>Minecraft 18w50a</version>
                    <version>Minecraft 1.14.3</version>
                    <version>1.14.4</version>
                    <version>19w46b</version>
                    <version>1.15 Pre-Release 2</version>
                    <version>1.15 Pre-release 4</version>
                    <version>1.15 Pre-release 5</version>
                    <version>1.15 Pre-release 6</version>
                    <version>1.15 Pre-release 7</version>
                    <version>1.15</version>
                    <version>1.15.1</version>
                    <version>1.15.1 Pre-release 1</version>
                    <version>1.15.2 Pre-release 2</version>
                    <version>1.15.2</version>
                    <version>20w06a</version>
                                                                        <votes>47</votes>
                                    <watches>20</watches>
                                                                            <comments>
                            <comment id="718121" author="draco18s" created="Wed, 3 Jun 2020 17:49:23 +0200"  >&lt;p&gt;I included the relevant code way back in 2013 (I have no reason to believe that it has substantially changed since). The code floors the player&apos;s position values to integers, &lt;b&gt;then&lt;/b&gt;&#160;subtracts 1 from Y. This works fine if the player is standing anywhere within the XY bounds of the block, and directly on top of it, but as soon as the player is any amount above the block (including jumping and flying) the results change.&lt;/p&gt;

&lt;p&gt;I at the time suggested subtracting 1/16th (instead of 1), &lt;b&gt;then&lt;/b&gt;&#160;flooring, which will always result in the same block if the player is walking on top of a half slab or similar, and would also work for carpets (which are 1/16th thick). Using a smaller value (eg. epsilon) further minimizes the amount above the block could be and get the wrong block (although there are few blocks in Minecraft that do not have size deltas less than 1/16th, only a pressure plate (depressed) does, but it doesn&apos;t have collision).&lt;/p&gt;</comment>
                            <comment id="718012" author="redstoneexplorer" created="Wed, 3 Jun 2020 15:46:58 +0200"  >&lt;p&gt;Considering you don&apos;t even have physical contact with those blocks yet their properties (which rely on physical contact) still apply, it&apos;s a no-brainer that it was a bug to begin with. The&#160;&lt;em&gt;only&lt;/em&gt; reason I can see for this being intended is if the code is set to detect a player in the block space above those blocks, as opposed to being physically on top of the block itself. In that sense the code would be working exactly as it was designed to, despite it not being an intuitive or reasonable design.&lt;/p&gt;</comment>
                            <comment id="692716" author="kroppeb" created="Sat, 9 May 2020 00:06:44 +0200"  >&lt;p&gt;According to &lt;a href=&quot;https://bugs.mojang.com/browse/MC-163952&quot; title=&quot;Soul sand above ice, packed ice, or slime blocks has no extra slow down effect anymore&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-163952&quot;&gt;&lt;del&gt;MC-163952&lt;/del&gt;&lt;/a&gt; this is no longer WAI but FIXED instead, at least for the case of soulsand and ice (&lt;a href=&quot;https://bugs.mojang.com/browse/MC-6451&quot; title=&quot;Soul sand and ice&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-6451&quot;&gt;&lt;del&gt;MC-6451&lt;/del&gt;&lt;/a&gt;)&lt;/p&gt;</comment>
                            <comment id="633353" author="_zombiehunter" created="Thu, 13 Feb 2020 10:31:56 +0100"  >&lt;p&gt;Wow, took you guys a veeery loooong time to decide this is WAI. But still, good to know this is a feature now &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>
                            <comment id="623106" author="cubfan135" created="Thu, 9 Jan 2020 20:24:42 +0100"  >&lt;p&gt;Should be &apos;won&apos;t fix&apos; in my opinion. This bug allows greater player creativity since you can place slabs on ice rather than having ice itself aid in ice based speed tunnels. Doesn&apos;t allow for anything more, and is a quirk that adds to the possibilities in the game.&lt;/p&gt;</comment>
                            <comment id="563634" author="redcmd" created="Sat, 6 Jul 2019 11:46:13 +0200"  >&lt;p&gt;related to &lt;a href=&quot;https://bugs.mojang.com/browse/MC-1133&quot; title=&quot;Whether or not a player experiences some effect is calculated based on the block under the center of the player&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-1133&quot;&gt;&lt;del&gt;MC-1133&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="563585" author="thegreatmattketchup" created="Sat, 6 Jul 2019 06:04:33 +0200"  >&lt;p&gt;Affects 1.14.3&lt;/p&gt;

&lt;p&gt;Occurs on Farmland and&#160;Grass Path as well.&lt;/p&gt;</comment>
                            <comment id="548142" author="redweasel" created="Fri, 17 May 2019 16:22:02 +0200"  >&lt;p&gt;I think this bug is actually kind of a feature, because you can use it so widely e.g. for superspeed sprinting tunnels through the nether. It would be a shame if this gets fixed, even though it makes no sense that you could slip on half slabs if there is ice under them.&lt;/p&gt;</comment>
                            <comment id="506429" author="awesoman3000" created="Wed, 12 Dec 2018 19:12:00 +0100"  >&lt;p&gt;Affects 18w50a&lt;/p&gt;</comment>
                            <comment id="505149" author="awesoman3000" created="Wed, 5 Dec 2018 17:49:24 +0100"  >&lt;p&gt;Affects 18w49a&lt;/p&gt;</comment>
                            <comment id="504188" author="awesoman3000" created="Fri, 30 Nov 2018 17:03:46 +0100"  >&lt;p&gt;Affects 18w48b, can I request ownership of the ticket?&lt;/p&gt;</comment>
                            <comment id="503918" author="awesoman3000" created="Thu, 29 Nov 2018 17:17:15 +0100"  >&lt;p&gt;Affects 18w48a&lt;/p&gt;</comment>
                            <comment id="503171" author="awesoman3000" created="Sun, 25 Nov 2018 10:55:52 +0100"  >&lt;p&gt;Affects 18w47a and 18w47b&lt;/p&gt;</comment>
                            <comment id="501657" author="awesoman3000" created="Sun, 18 Nov 2018 14:34:52 +0100"  >&lt;p&gt;Affects 18w46a&lt;/p&gt;</comment>
                            <comment id="484392" author="poslobug" created="Fri, 24 Aug 2018 10:18:50 +0200"  >&lt;p&gt;Affect 1.13.1&lt;/p&gt;</comment>
                            <comment id="462845" author="qwerty23495" created="Sat, 23 Jun 2018 08:17:59 +0200"  >&lt;p&gt;Can confirm in 1.13-pre3.&lt;/p&gt;</comment>
                            <comment id="448943" author="lord_quadrato" created="Wed, 25 Apr 2018 15:52:53 +0200"  >&lt;p&gt;Affects 18w16a&lt;/p&gt;</comment>
                            <comment id="398438" author="bemoty" created="Wed, 9 Aug 2017 15:56:23 +0200"  >&lt;p&gt;Can confirm for 1.12.1.&lt;/p&gt;</comment>
                            <comment id="384484" author="ericz1" created="Mon, 22 May 2017 20:02:10 +0200"  >&lt;p&gt;Confirmed for 1.12-pre5.&lt;/p&gt;</comment>
                            <comment id="380432" author="den28rus" created="Fri, 28 Apr 2017 08:07:35 +0200"  >&lt;p&gt;Confirmed for 17w17b&lt;/p&gt;</comment>
                            <comment id="316855" author="__null" created="Thu, 23 Jun 2016 18:09:25 +0200"  >&lt;p&gt;Confirmed for &lt;font color=&quot;#060&quot;&gt;&lt;b&gt;1.10.2&lt;/b&gt;&lt;/font&gt;.&lt;/p&gt;</comment>
                            <comment id="316055" author="__null" created="Wed, 22 Jun 2016 19:03:04 +0200"  >&lt;p&gt;Confirmed for &lt;font color=&quot;#060&quot;&gt;&lt;b&gt;1.10.1&lt;/b&gt;&lt;/font&gt;.&lt;/p&gt;</comment>
                            <comment id="311440" author="__null" created="Wed, 8 Jun 2016 00:53:54 +0200"  >&lt;p&gt;Confirmed for &lt;font color=&quot;#060&quot;&gt;&lt;b&gt;1.10-pre2&lt;/b&gt;&lt;/font&gt;.&lt;/p&gt;</comment>
                            <comment id="309459" author="__null" created="Fri, 3 Jun 2016 03:42:53 +0200"  >&lt;p&gt;Confirmed for &lt;font color=&quot;#060&quot;&gt;&lt;b&gt;1.10-pre1&lt;/b&gt;&lt;/font&gt;.&lt;/p&gt;</comment>
                            <comment id="307778" author="__null" created="Fri, 27 May 2016 00:55:09 +0200"  >&lt;p&gt;Confirmed for &lt;font color=&quot;#060&quot;&gt;&lt;b&gt;16w21b&lt;/b&gt;&lt;/font&gt;.&lt;/p&gt;</comment>
                            <comment id="307457" author="__null" created="Thu, 26 May 2016 01:02:14 +0200"  >&lt;p&gt;Confirmed for &lt;font color=&quot;#060&quot;&gt;&lt;b&gt;16w21a&lt;/b&gt;&lt;/font&gt;.&lt;/p&gt;</comment>
                            <comment id="305380" author="__null" created="Wed, 18 May 2016 23:59:56 +0200"  >&lt;p&gt;Confirmed for &lt;b&gt;16w20a&lt;/b&gt;.&lt;/p&gt;</comment>
                            <comment id="304180" author="__null" created="Thu, 12 May 2016 01:04:32 +0200"  >&lt;p&gt;Confirmed for &lt;b&gt;1.9.4&lt;/b&gt;.&lt;/p&gt;</comment>
                            <comment id="303230" author="__null" created="Fri, 6 May 2016 01:58:38 +0200"  >&lt;p&gt;Confirmed for &lt;b&gt;1.9.3-pre3&lt;/b&gt;.&lt;/p&gt;</comment>
                            <comment id="294970" author="james549" created="Wed, 16 Mar 2016 00:24:25 +0100"  >&lt;p&gt;Confirmed for &lt;b&gt;1.9.1-pre3&lt;/b&gt;.&lt;/p&gt;</comment>
                            <comment id="289313" author="ezeiger92" created="Thu, 25 Feb 2016 08:00:38 +0100"  >&lt;p&gt;Confirmed for 1.9-pre3&lt;/p&gt;</comment>
                            <comment id="284850" author="JIRAUSER71590" created="Fri, 12 Feb 2016 15:44:44 +0100"  >&lt;p&gt;&lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=jerrykim306&quot; class=&quot;user-hover&quot; rel=&quot;jerrykim306&quot;&gt;jerrykim306&lt;/a&gt;: The tracker wasn&apos;t available untill 1.4, older versions cannot be added as they don&apos;t exist on the tracker and onlycurrent versions can be selected&lt;br/&gt;
Also 1.0.0 is outdated&lt;/p&gt;</comment>
                            <comment id="284844" author="jerrykim306" created="Fri, 12 Feb 2016 15:37:46 +0100"  >&lt;p&gt;This bug was affected minecraft version 1.0.0 or older.&lt;/p&gt;</comment>
                            <comment id="269818" author="commandersealand" created="Wed, 2 Dec 2015 22:49:23 +0100"  >&lt;p&gt;Confirmed for 15w49a&lt;/p&gt;</comment>
                            <comment id="268324" author="JIRAUSER71590" created="Wed, 25 Nov 2015 22:33:21 +0100"  >&lt;p&gt;No, it&apos;s not, else this would&apos;ve been resolved back during 1.4 development, give me 1 reason why this would bs intended&lt;/p&gt;</comment>
                            <comment id="268319" author="5tr4" created="Wed, 25 Nov 2015 22:05:51 +0100"  >&lt;p&gt;Probably Intended&lt;/p&gt;</comment>
                            <comment id="267341" author="redstonehelper" created="Sun, 22 Nov 2015 19:22:34 +0100"  >&lt;p&gt;I guess there&apos;s multiple ways these problems can be looked at (and fixed). Reopening.&lt;/p&gt;</comment>
                            <comment id="267335" author="draco18s" created="Sun, 22 Nov 2015 19:06:56 +0100"  >&lt;p&gt;They are NOT caused by the same basic issue.  This one is caused by the incorrect order of operations (floor, then -1, rather than -1, then ceil).  That issue is caused by the use of a single point check rather than checking all four corners of the player&apos;s hitbox.&lt;/p&gt;</comment>
                            <comment id="267315" author="kingsupernova" created="Sun, 22 Nov 2015 18:28:11 +0100"  >&lt;p&gt;While there could be 2 different fixes, they are both caused by the same basic issue. It would probably make more sense to combine them, then if one is fixed without the other just reopen the one that wasn&apos;t fixed.&lt;/p&gt;</comment>
                            <comment id="267167" author="banana478" created="Sun, 22 Nov 2015 00:10:45 +0100"  >&lt;p&gt;I would argue that they are slightly different; &lt;a href=&quot;https://bugs.mojang.com/browse/MC-1133&quot; title=&quot;Whether or not a player experiences some effect is calculated based on the block under the center of the player&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-1133&quot;&gt;&lt;del&gt;MC-1133&lt;/del&gt;&lt;/a&gt; is about x/z position while this ticket is about vertical position. The two don&apos;t always occur at the same time and I think it is conceivable that one could be fixed while the other stays the same.&lt;/p&gt;</comment>
                            <comment id="267061" author="redstonehelper" created="Sat, 21 Nov 2015 17:34:01 +0100"  >&lt;p&gt;Resolved &lt;a href=&quot;https://bugs.mojang.com/browse/MC-1133&quot; title=&quot;Whether or not a player experiences some effect is calculated based on the block under the center of the player&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-1133&quot;&gt;&lt;del&gt;MC-1133&lt;/del&gt;&lt;/a&gt; to this ticket.&lt;/p&gt;</comment>
                            <comment id="267030" author="kingsupernova" created="Sat, 21 Nov 2015 14:40:00 +0100"  >&lt;p&gt;Relates to &lt;a href=&quot;https://bugs.mojang.com/browse/MC-1133&quot; title=&quot;Whether or not a player experiences some effect is calculated based on the block under the center of the player&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-1133&quot;&gt;&lt;del&gt;MC-1133&lt;/del&gt;&lt;/a&gt;. In fact, they are basically the same bug. The game calculates effects based simply on the block below the player&apos;s center, not what they are actually standing on.&lt;/p&gt;</comment>
                            <comment id="266882" author="commandersealand" created="Sat, 21 Nov 2015 07:01:44 +0100"  >&lt;p&gt;Confirmed in 15w47c. In addition to ice &amp;amp; slimeblocks, packed ice will also cause strange behavior.&lt;/p&gt;</comment>
                            <comment id="258571" author="swekob" created="Sun, 25 Oct 2015 21:33:18 +0100"  >&lt;p&gt;Confirmed for 15w43c.&lt;/p&gt;</comment>
                            <comment id="255661" author="miwob" created="Thu, 15 Oct 2015 20:41:52 +0200"  >&lt;p&gt;Thanks. Will take care of this ticket.&lt;/p&gt;</comment>
                            <comment id="255659" author="redstonehelper" created="Thu, 15 Oct 2015 20:40:32 +0200"  >&lt;p&gt;Original reporter is inactive, giving ticket to &lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=miwob&quot; class=&quot;user-hover&quot; rel=&quot;miwob&quot;&gt;miwob&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="255646" author="miwob" created="Thu, 15 Oct 2015 20:26:23 +0200"  >&lt;p&gt;Still in 15w42a and below&lt;/p&gt;</comment>
                            <comment id="250098" author="miwob" created="Wed, 16 Sep 2015 22:40:33 +0200"  >&lt;p&gt;Still in 15w38a and below&lt;/p&gt;</comment>
                            <comment id="237358" author="miwob" created="Thu, 30 Jul 2015 19:56:59 +0200"  >&lt;p&gt;Still an issue in 15w31a, 15w31b&lt;/p&gt;</comment>
                            <comment id="210016" author="miwob" created="Thu, 27 Nov 2014 14:38:11 +0100"  >&lt;p&gt;Still an issue in Minecraft 1.8.1&lt;/p&gt;</comment>
                            <comment id="203415" author="miwob" created="Tue, 14 Oct 2014 20:37:58 +0200"  >&lt;p&gt;Still an issue in Minecraft 1.8-pre3 and 1.8&lt;/p&gt;</comment>
                            <comment id="194309" author="miwob" created="Tue, 26 Aug 2014 18:50:21 +0200"  >&lt;p&gt;Still an issue in 1.8-pre1 and 1.8-pre2&lt;/p&gt;</comment>
                            <comment id="185083" author="miwob" created="Wed, 6 Aug 2014 18:46:14 +0200"  >&lt;p&gt;Still an issue in 14w32a&lt;/p&gt;</comment>
                            <comment id="183788" author="ezekielelin" created="Sat, 2 Aug 2014 05:46:44 +0200"  >&lt;p&gt;Please do not mark unreleased versions as affected. You do not have access to this yet.&lt;/p&gt;</comment>
                            <comment id="181828" author="miwob" created="Tue, 29 Jul 2014 22:40:53 +0200"  >&lt;p&gt;Confirmed for 14w30a, 14w30b, 14w30c&lt;/p&gt;</comment>
                            <comment id="177407" author="miwob" created="Sun, 20 Jul 2014 14:06:50 +0200"  >&lt;p&gt;Confirmed for 14w29b&lt;/p&gt;</comment>
                            <comment id="172033" author="miwob" created="Wed, 9 Jul 2014 14:31:10 +0200"  >&lt;p&gt;Confirmed for 14w27b&lt;/p&gt;</comment>
                            <comment id="159491" author="draco18s" created="Fri, 23 May 2014 19:42:18 +0200"  >&lt;p&gt;&quot;Open&quot; and &quot;Closed: Won&apos;t Fix&quot; aren&apos;t the same thing.&lt;/p&gt;</comment>
                            <comment id="159489" author="conormcs" created="Fri, 23 May 2014 19:28:27 +0200"  >&lt;p&gt;guys give up already... this has been in the game since 1.4.2 and it&apos;s nearly 1.8 already. i think mojang have unofficially decided to keep this in. perhaps we will see confirmation some time soon.&lt;/p&gt;</comment>
                            <comment id="159487" author="marcono1234" created="Fri, 23 May 2014 19:20:48 +0200"  >&lt;p&gt;Confirmed for 14w21b&lt;/p&gt;</comment>
                            <comment id="68350" author="draco18s" created="Fri, 24 May 2013 15:02:24 +0200"  >&lt;p&gt;Louis: that rapid jumping behavior with trapdoors was fixed around 1.4 I think.  I had a parkour type map that used it and had to update it to remove that particular jump.&lt;/p&gt;</comment>
                            <comment id="68345" author="megascience" created="Fri, 24 May 2013 14:46:10 +0200"  >&lt;p&gt;Actually, while I agree this probably shouldn&apos;t be possible, it does make a difference to put something above it. I&apos;ve seen people put trap doors above ice to create smaller space. When jumping rapidly while sprinting through it, you go even faster than just having ice. Just pointing that out.&lt;/p&gt;</comment>
                            <comment id="57165" author="draco18s" created="Mon, 25 Mar 2013 18:02:27 +0100"  >&lt;p&gt;See &lt;a href=&quot;https://bugs.mojang.com/browse/MC-12834&quot; title=&quot;Block Slipperiness Detection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-12834&quot;&gt;&lt;del&gt;MC-12834&lt;/del&gt;&lt;/a&gt; for the code that causes this to happen and a fix.&lt;/p&gt;</comment>
                            <comment id="51008" author="_zombiehunter" created="Fri, 8 Mar 2013 15:43:23 +0100"  >&lt;p&gt;I reported it because it&apos;s a bug. It&apos;s entirely up to Mojang if they fix this bug or turn it into a feature.&lt;br/&gt;
To make ice runs, you can just use ice blocks without slabs too, it makes no difference.&lt;/p&gt;</comment>
                            <comment id="50893" author="corgano" created="Fri, 8 Mar 2013 00:40:18 +0100"  >&lt;p&gt;Why did you have to post this? It is awesome for making ice runs&lt;/p&gt;</comment>
                            <comment id="23914" author="_zombiehunter" created="Wed, 21 Nov 2012 20:12:47 +0100"  >&lt;p&gt;@Anon Ymus:&lt;br/&gt;
Can confirm this for Minecraft 1.4.5 when sneaking on slabs next to ice blocks.&lt;/p&gt;</comment>
                            <comment id="23889" author="banana478" created="Wed, 21 Nov 2012 18:15:46 +0100"  >&lt;p&gt;Also, it is possible to slide as if you were on ice when standing on the edge of a half-slab next to ice. (see screenshot)&lt;/p&gt;</comment>
                            <comment id="23309" author="endlisnis" created="Mon, 19 Nov 2012 15:55:29 +0100"  >&lt;p&gt;This was a single-player game.&lt;br/&gt;
Logging out/back in did not help.&lt;br/&gt;
Closing the program and restarting it did not help.&lt;br/&gt;
I have been able to reproduce this in 1.4.4.  I have not tried it in the 1.4.5 pre-release.&lt;/p&gt;</comment>
                            <comment id="23308" author="sciguyryan" created="Mon, 19 Nov 2012 15:53:49 +0100"  >&lt;p&gt;Ice speedways. Plain and simple. They are a good feature.&lt;/p&gt;</comment>
                            <comment id="23307" author="resba" created="Mon, 19 Nov 2012 15:49:46 +0100"  >&lt;p&gt;Hello! Please provide additional information, so we can better help with your problem:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Was this a single player or multi-player/lan game?&lt;/li&gt;
	&lt;li&gt;Was the issue corrected after logging out and back in?&lt;/li&gt;
	&lt;li&gt;Was the issue corrected after closing the program and restarting?&lt;/li&gt;
	&lt;li&gt;Have you been able to reproduce this?&lt;br/&gt;
You may also want to review the &lt;a href=&quot;http://help.mojang.com/customer/portal/articles/801354-writing-helpful-bug-reports-for-minecraft&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;guidelines for writing helpful bug reports&lt;/a&gt;.&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="23306" author="endlisnis" created="Mon, 19 Nov 2012 15:48:13 +0100"  >&lt;p&gt;I don&apos;t know what uses sciguyryan is talking about.  All I know is that when I built a slab-road across an icy lake, I slip around on the slabs.  I think this should be fixed.&lt;/p&gt;</comment>
                            <comment id="16023" author="sciguyryan" created="Wed, 31 Oct 2012 20:50:40 +0100"  >&lt;p&gt;This may or may not be a bug and either way it probably shouldn&apos;t be fixed given the number of uses that have come up for this feature since the reintroduction of silk touch on ice. Just like BUD switches it would be rather unfortunate to have this removed.&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="483563">MC-242095</issuekey>
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