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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-1390] Upper slabs with water/lava on top makes midair dripping water/lava</title>
                <link>https://bugs.mojang.com/browse/MC-1390</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;If you have an upper slab with water on top, the water will drip in midair. Looks silly. Same goes with dripping lava, I am guessing.&lt;/p&gt;</description>
                <environment></environment>
        <key id="12718">MC-1390</key>
            <summary>Upper slabs with water/lava on top makes midair dripping water/lava</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="Awesoman3000">Connor Steppie</reporter>
                        <labels>
                            <label>dripping</label>
                            <label>lava</label>
                            <label>rendering</label>
                            <label>slab</label>
                            <label>water</label>
                    </labels>
                <created>Tue, 30 Oct 2012 23:18:01 +0100</created>
                <updated>Mon, 24 Aug 2020 09:37:27 +0200</updated>
                            <resolved>Tue, 10 Jul 2018 17:55:51 +0200</resolved>
                                    <version>Minecraft 1.4.2</version>
                    <version>Minecraft 1.4.5</version>
                    <version>Minecraft 1.4.6</version>
                    <version>Minecraft 1.4.7</version>
                    <version>Snapshot 13w03a</version>
                    <version>Snapshot 13w09a</version>
                    <version>Snapshot 13w09b</version>
                    <version>Snapshot 13w09c</version>
                    <version>Minecraft 1.5</version>
                    <version>Minecraft 1.5.1</version>
                    <version>Snapshot 13w19a</version>
                    <version>Snapshot 13w21a</version>
                    <version>Minecraft 1.6.2</version>
                    <version>Minecraft 1.6.4</version>
                    <version>Minecraft 1.7.1</version>
                    <version>Minecraft 1.7.2</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 14w05b</version>
                    <version>Minecraft 14w06b</version>
                    <version>Minecraft 14w07a</version>
                    <version>Minecraft 14w08a</version>
                    <version>Minecraft 1.7.9</version>
                    <version>Minecraft 14w18b</version>
                    <version>Minecraft 1.8-pre1</version>
                    <version>Minecraft 1.8</version>
                    <version>Minecraft 1.8.1-pre3</version>
                    <version>Minecraft 1.8.8</version>
                    <version>Minecraft 15w36b</version>
                    <version>Minecraft 15w36c</version>
                    <version>Minecraft 15w36d</version>
                    <version>Minecraft 15w44b</version>
                    <version>Minecraft 15w45a</version>
                    <version>Minecraft 1.9 Pre-Release 1</version>
                    <version>Minecraft 1.9.1</version>
                    <version>Minecraft 1.9.2</version>
                    <version>Minecraft 16w14a</version>
                    <version>Minecraft 1.9.4</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 1.11.2</version>
                    <version>Minecraft 1.12 Pre-Release 6</version>
                    <version>Minecraft 1.12</version>
                    <version>Minecraft 1.12.1 Pre-Release 1</version>
                    <version>Minecraft 1.12.1</version>
                    <version>Minecraft 1.12.2</version>
                    <version>Minecraft 17w50a</version>
                    <version>Minecraft 18w11a</version>
                    <version>Minecraft 18w14a</version>
                    <version>Minecraft 18w14b</version>
                    <version>Minecraft 18w15a</version>
                    <version>Minecraft 18w16a</version>
                    <version>Minecraft 18w20a</version>
                    <version>Minecraft 18w20b</version>
                    <version>Minecraft 18w20c</version>
                    <version>Minecraft 18w21a</version>
                    <version>Minecraft 18w22a</version>
                    <version>Minecraft 18w22b</version>
                    <version>Minecraft 18w22c</version>
                    <version>Minecraft 1.13-pre1</version>
                    <version>Minecraft 1.13-pre2</version>
                    <version>Minecraft 1.13-pre3</version>
                    <version>Minecraft 1.13-pre4</version>
                    <version>Minecraft 1.13-pre5</version>
                    <version>Minecraft 1.13-pre6</version>
                                    <fixVersion>Minecraft 1.13-pre7</fixVersion>
                                                        <votes>45</votes>
                                    <watches>15</watches>
                                                                            <comments>
                            <comment id="795120" author="bugi74" created="Mon, 24 Aug 2020 08:47:53 +0200"  >&lt;p&gt;Did this bug come back in the &lt;em&gt;Java&lt;/em&gt; edition?&lt;/p&gt;

&lt;p&gt;If it came back (or the dripping of liquids through blocks/slabs -&quot;feature&quot; was added) in &lt;em&gt;Bedrock&lt;/em&gt; edition instead (and apparently needs to be after version 1.14/Buzzy Bees, according to &lt;a href=&quot;https://feedback.minecraft.net/hc/en-us/articles/360015877192-Parity-Requests-and-You-A-Guide&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://feedback.minecraft.net/hc/en-us/articles/360015877192-Parity-Requests-and-You-A-Guide&lt;/a&gt;), it should be reported in the bedrock edition tracker. (&lt;a href=&quot;https://bugs.mojang.com/browse/MCPE-32639&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://bugs.mojang.com/browse/MCPE-32639&lt;/a&gt;).&lt;/p&gt;</comment>
                            <comment id="795103" author="catlover3" created="Mon, 24 Aug 2020 07:29:49 +0200"  >&lt;p&gt;Sorry that I&#8217;m a bit late, but please reopen this issue, perhaps with the vanilla-parity tag.&lt;/p&gt;</comment>
                            <comment id="469305" author="JIRAUSER71590" created="Tue, 10 Jul 2018 17:55:51 +0200"  >&lt;p&gt;Confirmed fixed.&lt;/p&gt;</comment>
                            <comment id="469304" author="awesoman3000" created="Tue, 10 Jul 2018 17:52:45 +0200"  >&lt;p&gt;Fixed in 1.13-pre7 (!!!!!)&lt;/p&gt;</comment>
                            <comment id="456964" author="miwob" created="Thu, 31 May 2018 13:14:12 +0200"  >&lt;p&gt;&lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=Awesoman3000&quot; class=&quot;user-hover&quot; rel=&quot;Awesoman3000&quot;&gt;Awesoman3000&lt;/a&gt;, ticket is yours now&lt;/p&gt;</comment>
                            <comment id="456957" author="awesoman3000" created="Thu, 31 May 2018 13:11:06 +0200"  >&lt;p&gt;Affects 18w22b&lt;/p&gt;</comment>
                            <comment id="456608" author="awesoman3000" created="Wed, 30 May 2018 03:34:35 +0200"  >&lt;p&gt;Affects 18w22a&lt;/p&gt;</comment>
                            <comment id="454860" author="awesoman3000" created="Wed, 23 May 2018 16:11:53 +0200"  >&lt;p&gt;Affects 18w21a&lt;/p&gt;</comment>
                            <comment id="453582" author="awesoman3000" created="Fri, 18 May 2018 15:12:42 +0200"  >&lt;p&gt;Affects 18w20c&lt;/p&gt;</comment>
                            <comment id="452861" author="awesoman3000" created="Wed, 16 May 2018 17:20:22 +0200"  >&lt;p&gt;Affects 18w20b&lt;/p&gt;</comment>
                            <comment id="452526" author="awesoman3000" created="Tue, 15 May 2018 16:52:42 +0200"  >&lt;p&gt;Affects 18w20a&lt;/p&gt;</comment>
                            <comment id="447821" author="awesoman3000" created="Thu, 19 Apr 2018 19:48:49 +0200"  >&lt;p&gt;Affects 18w16a&lt;/p&gt;</comment>
                            <comment id="447253" author="awesoman3000" created="Mon, 16 Apr 2018 13:15:08 +0200"  >&lt;p&gt;Affects Bedrock Edition, see &lt;a href=&quot;https://bugs.mojang.com/browse/MCPE-32639&quot; title=&quot;Water/lava above upside down slabs causes the drip particles to be created in midair&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MCPE-32639&quot;&gt;&lt;del&gt;MCPE-32639&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="446151" author="awesoman3000" created="Wed, 11 Apr 2018 17:52:16 +0200"  >&lt;p&gt;Affects 18w15a&lt;/p&gt;</comment>
                            <comment id="444920" author="awesoman3000" created="Thu, 5 Apr 2018 18:00:42 +0200"  >&lt;p&gt;Affects 18w14b&lt;/p&gt;</comment>
                            <comment id="444641" author="awesoman3000" created="Wed, 4 Apr 2018 18:27:23 +0200"  >&lt;p&gt;Affects 18w14a&lt;/p&gt;</comment>
                            <comment id="441419" author="asteraoth" created="Wed, 14 Mar 2018 16:45:19 +0100"  >&lt;p&gt;Confirmed for 18w11a&lt;/p&gt;</comment>
                            <comment id="399019" author="bemoty" created="Sat, 12 Aug 2017 15:16:21 +0200"  >&lt;p&gt;Can confirm for MC 1.12.1.&lt;/p&gt;</comment>
                            <comment id="316888" author="farogaming" created="Thu, 23 Jun 2016 18:49:12 +0200"  >&lt;p&gt;Nope, too late. &lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/wink.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="316862" author="__null" created="Thu, 23 Jun 2016 18:13:00 +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="316382" author="farogaming" created="Wed, 22 Jun 2016 23:26:24 +0200"  >&lt;p&gt;Confirmed for 1.10.1.&lt;/p&gt;</comment>
                            <comment id="312593" author="farogaming" created="Fri, 10 Jun 2016 23:15:53 +0200"  >&lt;p&gt;Confirmed for 1.10.&lt;/p&gt;</comment>
                            <comment id="286720" author="immaterialise" created="Wed, 17 Feb 2016 18:34:46 +0100"  >&lt;p&gt;Confirmed for 1.9-pre1&lt;/p&gt;</comment>
                            <comment id="248319" author="qmagnet" created="Thu, 10 Sep 2015 13:51:50 +0200"  >&lt;p&gt;Confirmed for 15w36d&lt;/p&gt;</comment>
                            <comment id="142421" author="jonathanhaas" created="Sat, 22 Feb 2014 10:03:33 +0100"  >&lt;p&gt;Yes, still in 14w08a.&lt;/p&gt;</comment>
                            <comment id="142315" author="ezekielelin" created="Fri, 21 Feb 2014 21:18:24 +0100"  >&lt;p&gt;Is this still a concern in the latest Minecraft version &lt;b&gt;14w08a&lt;/b&gt;? 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="126076" author="bugi74" created="Sat, 21 Dec 2013 14:19:33 +0100"  >&lt;p&gt;Affects 1.7.4.&lt;/p&gt;</comment>
                            <comment id="115969" author="emkioa" created="Sun, 27 Oct 2013 17:04:09 +0100"  >&lt;p&gt;Confirm 1.7.2&lt;/p&gt;</comment>
                            <comment id="115967" author="emkioa" created="Sun, 27 Oct 2013 17:01:54 +0100"  >&lt;p&gt;Affects 1.7.2&lt;/p&gt;</comment>
                            <comment id="107953" author="bugi74" created="Mon, 30 Sep 2013 17:36:14 +0200"  >&lt;p&gt;Affects 1.6.4.&lt;/p&gt;</comment>
                            <comment id="107622" author="bugi74" created="Sun, 29 Sep 2013 18:35:07 +0200"  >&lt;p&gt;@Torabi&lt;br/&gt;
While the MCP code doesn&apos;t look the same as the original, the fact of proving it fixable with just minor code changes is a very nice (and big) step towards fixing it. It&apos;ll handle finding the root cause, tests/debugs the solution, and provides directly readable fix. While the code is different, the basic structures are typically 99% the same, so it should only take couple minutes to find the corresponding piece of code in the Mojang&apos;s version, and couple more minutes to adapt the fix, and then few more to test/confirm it works.&lt;/p&gt;

&lt;p&gt;The code differences makes it harder to bring whole mods or larger code changes from MCP-derived sources, but that is why I have been working hard to make my fixes with as small changes as possible, leading often to coding-wise awkward solutions. But even the awkward ones can give a nice starting point for better solutions.&lt;/p&gt;</comment>
                            <comment id="106989" author="jespertheend" created="Fri, 27 Sep 2013 19:43:25 +0200"  >&lt;p&gt;oh wow, that sucks. Someone should tell him, though the fact that the code is different doesn&apos;t mean that stuff that gets added isn&apos;t useful. But I don&apos;t know anything about that.&lt;/p&gt;</comment>
                            <comment id="106787" author="torabi" created="Fri, 27 Sep 2013 03:27:38 +0200"  >&lt;p&gt;Apparently modifications to the code produced by MCP &lt;a href=&quot;https://twitter.com/Dinnerbone/status/377920596589703168&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;isn&apos;t particularly useful to them&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="106474" author="jespertheend" created="Thu, 26 Sep 2013 09:19:24 +0200"  >&lt;p&gt;yes I don&apos;t see why it isn&apos;t fixed yet. The fix is right there ^&lt;/p&gt;</comment>
                            <comment id="106351" author="cubethethird" created="Thu, 26 Sep 2013 04:28:23 +0200"  >&lt;p&gt;Is this still a concern in the &lt;em&gt;current Minecraft version&lt;/em&gt; &lt;b&gt;1.6.4&lt;/b&gt; / Launcher version &lt;b&gt;1.2.5&lt;/b&gt; ? If so, please &lt;em&gt;update the affected versions&lt;/em&gt; in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;</comment>
                            <comment id="49207" author="bugi74" created="Sat, 2 Mar 2013 22:56:30 +0100"  >&lt;p&gt;Indeed. I can apparently do only about 5-10 fixes a week, and that is mostly relatively easy ones. There&apos;s only several hundred more to go, and many of them are not easy...  (And I avoid redstone/lighting/client-server related issues.)&lt;/p&gt;

&lt;p&gt;Luckily those awesome coders from Mojang help occasionally a bit &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;  Hmm, but then again, I&apos;ve heard rumors that they also make more bugs &lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/tongue.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;  Kinky.&lt;/p&gt;

&lt;p&gt;Okay, enough joking, this isn&apos;t a &quot;social&quot; website-thing. Back to bugfixing. &amp;#42;Continues talks with Estonian &quot;consultants&quot; about &quot;persuading&quot; some stubborn village traders to start selling some goods.&amp;#42;&lt;/p&gt;</comment>
                            <comment id="49194" author="jespertheend" created="Sat, 2 Mar 2013 22:18:19 +0100"  >&lt;p&gt;whoa! there should be more people like you!&lt;/p&gt;</comment>
                            <comment id="49135" author="bugi74" created="Sat, 2 Mar 2013 19:32:18 +0100"  >&lt;p&gt;This is pretty tough one to fix; the droplets are separate entities falling down. If they are created at the bottom of a upper half-slab (or similar blocks), they are &quot;born&quot; inside a block and consider themselves to be on ground, and thus end their travel just as immediately.&lt;/p&gt;

&lt;p&gt;So two parts to the fix, one to calculate the starting height more accurately, and another part to let the droplet survive through its first block.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Fixes&lt;/b&gt;&lt;/p&gt;
&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeHeader panelHeader&quot; style=&quot;border-bottom-width: 1px;&quot;&gt;&lt;b&gt;BlockFluid.randomDisplayTick()&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;        ...
        &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (random.nextInt(10) == 0
                &lt;span class=&quot;code-comment&quot;&gt;//&amp;amp;&amp;amp; world.doesBlockHaveSolidTopSurface(x, y - 1, z)
&lt;/span&gt;                &amp;amp;&amp;amp; world.getBlockMaterial(x, y - 1, z).blocksMovement()  &lt;span class=&quot;code-comment&quot;&gt;// MC-9186
&lt;/span&gt;                &amp;amp;&amp;amp; !world.getBlockMaterial(x, y - 2, z).blocksMovement()) {
            var21 = (&lt;span class=&quot;code-object&quot;&gt;double&lt;/span&gt;) ((&lt;span class=&quot;code-object&quot;&gt;float&lt;/span&gt;) x + random.nextFloat());
            &lt;span class=&quot;code-comment&quot;&gt;// FIX: Adjust by block&apos;s lower bound:
&lt;/span&gt;            &lt;span class=&quot;code-object&quot;&gt;int&lt;/span&gt; blockId = world.getBlockId(x, y - 1, z);
            Block block = Block.blocksList[blockId];
            block.setBlockBoundsBasedOnState(world, x, y - 1, z);
            &lt;span class=&quot;code-comment&quot;&gt;// var22 = (&lt;span class=&quot;code-object&quot;&gt;double&lt;/span&gt;) y - 1.05D;
&lt;/span&gt;            var22 = (&lt;span class=&quot;code-object&quot;&gt;double&lt;/span&gt;) y - 1.05D + block.getBlockBoundsMinY(); &lt;span class=&quot;code-comment&quot;&gt;// FIX
&lt;/span&gt;            var23 = (&lt;span class=&quot;code-object&quot;&gt;double&lt;/span&gt;) ((&lt;span class=&quot;code-object&quot;&gt;float&lt;/span&gt;) z + random.nextFloat());
            ...
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeHeader panelHeader&quot; style=&quot;border-bottom-width: 1px;&quot;&gt;&lt;b&gt;EntityDropParticleFX&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;    &lt;span class=&quot;code-keyword&quot;&gt;private&lt;/span&gt; &lt;span class=&quot;code-object&quot;&gt;double&lt;/span&gt; firstY; &lt;span class=&quot;code-comment&quot;&gt;// ADDED to record the height of start.
&lt;/span&gt;
    &lt;span class=&quot;code-keyword&quot;&gt;public&lt;/span&gt; EntityDropParticleFX(World world, &lt;span class=&quot;code-object&quot;&gt;double&lt;/span&gt; x, &lt;span class=&quot;code-object&quot;&gt;double&lt;/span&gt; y, &lt;span class=&quot;code-object&quot;&gt;double&lt;/span&gt; z, Material material) {
        ...
        &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.firstY = MathHelper.floor_double(y); &lt;span class=&quot;code-comment&quot;&gt;// ADDED record the height of start.
&lt;/span&gt;    }

    &lt;span class=&quot;code-keyword&quot;&gt;public&lt;/span&gt; void onUpdate() {
        ...
        &lt;span class=&quot;code-comment&quot;&gt;//&lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.onGround) {
&lt;/span&gt;        &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.onGround &amp;amp;&amp;amp; &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.posY &amp;lt; &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.firstY) {
            &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.materialType == Material.water) {
                &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.setDead();
        ...
        &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.posY &amp;lt; &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.firstY) {  &lt;span class=&quot;code-comment&quot;&gt;// FIX
&lt;/span&gt;            Material var1 = &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.worldObj.getBlockMaterial(MathHelper.floor_double(&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.posX), MathHelper.floor_double(&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.posY), MathHelper.floor_double(&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.posZ));
            &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (var1.isLiquid() || var1.isSolid()) {
                &lt;span class=&quot;code-object&quot;&gt;double&lt;/span&gt; var2 = &lt;span class=&quot;code-comment&quot;&gt;// snipped &lt;span class=&quot;code-keyword&quot;&gt;for&lt;/span&gt; clarity, not part of fix.
&lt;/span&gt;                &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.posY &amp;lt; var2) {
                    &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.setDead();
                }
            }
        }  &lt;span class=&quot;code-comment&quot;&gt;// FIX
&lt;/span&gt;    }
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;
&lt;p&gt;Tested on 1.4.7. Half-slabs seem to work ok. Unfortunately, for some reason, the normal stairs tries to confuse things by claiming to have its boundsMinY() at 0.5, which causes the drops to start half-way through it, too. It shows as not having the slow start, but the droplets come out at full speed immediately at the blocks bottom. Its a cosmetic thing, but since we&apos;re trying to fix a cosmetic thing in the first place...&lt;/p&gt;

&lt;p&gt;However, both changes &quot;make sense&quot; and should improve the situation overall, so I&apos;ll provide those fixes for now. Will try to find out the reason for the stupid stairs..&lt;/p&gt;

&lt;p&gt;Edit: Found part of the reason for the stairs. As soon as the aiming reticle is moved on top of any stairs block, the bounds minY will be changed for all stairs to have minY 0.5 for the rest of running. Sigh.&lt;br/&gt;
Edit2: That seems to be another bug, now with a fix too: &lt;a href=&quot;https://bugs.mojang.com/browse/MC-10806&quot; title=&quot;Stairs-block collision ray tracing method forgets to tell when it has finished.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-10806&quot;&gt;&lt;del&gt;MC-10806&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="39095" author="jespertheend" created="Tue, 22 Jan 2013 18:55:01 +0100"  >&lt;p&gt;confirmed&lt;/p&gt;</comment>
                            <comment id="29138" author="darkwolff" created="Mon, 17 Dec 2012 21:36:11 +0100"  >&lt;p&gt;Confirmed as well. This started when top slabs/stairs gained the ability to spawn mobs.&lt;/p&gt;</comment>
                            <comment id="29133" author="bljat" created="Mon, 17 Dec 2012 21:07:35 +0100"  >&lt;p&gt;Added lava to title.&lt;/p&gt;</comment>
                            <comment id="26010" author="bljat" created="Sat, 1 Dec 2012 04:02:19 +0100"  >&lt;p&gt;Confirmed in 1.4.5.&lt;/p&gt;</comment>
                            <comment id="15626" author="banana478" created="Tue, 30 Oct 2012 23:22:25 +0100"  >&lt;p&gt;Makes sense, as the water drop effects are on the bottom of the block beneath the water, but certainly looks weird.&lt;/p&gt;</comment>
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