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The BUD Switch is a block planned to be added in the Redstone Update for use with redstone circuitry. BUD stands for Block Update Detector and configurations of such a device have existed in Minecraft due to a glitch labelled as a "feature", allowing circuits to detect block updates, such as growing grass or decaying leaves.

History

u
24 November, 2012
{{Extension DPL}}<ul><li>[[Amethyst Shard|Amethyst Shard]]<br/>{{Item
| title = Amethyst Shard
| image = Amethyst Shard.png
| renewable = Yes
| stackable = Yes (64)
}}

An '''amethyst shard''' is a crystal obtained from mining a fully grown [[amethyst cluster]] or can be obtained from chests in [[Ancient City|ancient cities]].

== Obtaining ==

=== Mining ===
An [[amethyst cluster]] mined using a non-[[Silk Touch]], non-[[Fortune]] [[pickaxe]] drops 4 amethyst shards. When mined using any other tool, [[item]] or mechanism (such as [[explosion]]s or [[piston]]s) it drops 2 shards. The maximum amount of amethyst shards dropped can be increased with Fortune. Fortune I gives a {{frac|1|3}} chance for eight shards, averaging 5.33 shards; Fortune II gives a 25% chance (each) to give eight or 12 shards, averaging 7 shards, and Fortune III gives a 20% chance (each) to give 8, 12, or 16 shards, averaging 8.8 shards.

If the amethyst cluster in any of its growth stages is mined using a pickaxe enchanted with [[Silk Touch]], it drops itself rather than amethyst shards.

=== Chest loot ===
{{LootChestItem|amethyst-shard}} 

== Usage ==
=== Crafting ingredient ===
{{Crafting usage}}
=== Smithing ingredient ===
{{Smithing
|head=1
|ingredients=Any Armor Trim +<br/>Any Armor Piece + <br/>Amethyst Shard
|Any Armor Trim Smithing Template
|Netherite Chestplate
|Amethyst Shard
|Amethyst Trim Netherite Chestplate
|showdescription=1
|description = All armor types can be used in this recipe;<br/>a netherite chestplate is shown as an example.<br/>
|tail=1
}}

;Trim color palette
The following color palette is shown on the designs on trimmed armor:
*{{TrimPalette|amethyst shard}}

=== Allay duplication ===
If an amethyst shard is given to an [[allay]] that is currently dancing to an active [[jukebox]], the allay emits heart particles, consumes the amethyst shard and duplicates into another allay. After this, there is a 5 minute cool down until both allays can be duplicated like this again.



== Sounds ==
{{Edition|Java}}:
{{Sound table
|sound=Amethyst shimmer.ogg
|subtitle=Amethyst chimes
|source=neutral
|description=When an amethyst shard duplicates an allay
|id=block.amethyst_block.chime
|translationkey=subtitles.block.amethyst_block.chime
|volume=0.4
|pitch=1.0
|distance=16
|foot=1}}

{{Edition|Bedrock}}:
{{Sound table
|type=bedrock
|sound=Amethyst shimmer.ogg
|source=block
|description=When an amethyst shard duplicates an allay
|id=chime.amethyst_block
|volume=1.0
|pitch=0.5-1.7
|foot=1}}

== Data values ==
=== ID ===
{{edition|java}}:
{{ID table
|edition=java
|showforms=y
|generatetranslationkeys=y
|displayname=Amethyst Shard
|spritetype=item
|nameid=amethyst_shard
|form=item
|foot=1}}

{{edition|bedrock}}:
{{ID table
|edition=bedrock
|shownumericids=y
|showforms=y
|notshowbeitemforms=y
|generatetranslationkeys=y
|displayname=Amethyst Shard
|spritetype=item
|nameid=amethyst_shard
|form=item
|id=625
|foot=1}}

==History==
{{History||October 3, 2020|link={{ytl|DBvZ2Iqmm3M|t=23m14s}}|Amethyst shards are mentioned, but not shown at [[Minecraft Live 2020]].}}
{{History|java}}
{{History||1.17|snap=20w45a|[[File:Amethyst Shard JE1.png|32px]] Added amethyst shards.}}
{{History|||snap=20w46a|[[File:Amethyst Shard JE2 BE1.png|32px]] The texture for amethyst shards has changed.}}
{{History||1.19|snap=22w13a|Amethyst shards can now be found in [[ancient city]] [[chest]]s.}}
{{History||1.19.1|snap=22w24a|Amethyst shards can now be used to duplicate [[allay]]s.}}
{{History||1.20<br>(Experimental)|link=1.19.4|snap=23w04a|Amethyst shards can now be used as an armor trim material.}}
{{History||1.20|snap=23w12a|Amethyst shards can now be used to craft [[calibrated sculk sensor]]s.}}

{{History|bedrock}}
{{History||1.17.0|snap=beta 1.17.0.50|[[File:Amethyst Shard JE2 BE1.png|32px]] Added amethyst shards.}}
{{History|||snap=beta 1.17.0.52|Amethyst shards are now available without enabling [[Experimental Gameplay]].}}
{{History||1.19.0|snap=beta 1.19.0.26|Amethyst shards can now be found in [[ancient city]] [[chest]]s.}}
{{History||1.19.10|snap=beta 1.19.10.22|Amethyst shards can now be used to duplicate allays.}}
{{History||1.20.0<br>(Experimental)|link=Bedrock Edition 1.19.80|snap=beta 1.19.80.21|Amethyst shards can now be used as an armor trim material.}}
{{History|||snap=beta 1.19.80.22|Amethyst shards can now be used to craft calibrated sculk sensors.}}
{{History|foot}}

==Issues==
{{issue list}}

==Trivia==
* Although in real life {{w|amethyst}} is a variety of {{w|quartz}} like [[Nether Quartz|nether quartz]], the two resources are not interchangeable.

== External Links ==
*[https://www.minecraft.net/en-us/article/taking-inventory--amethyst-shard Taking Inventory: Amethyst Shard] – Minecraft.net on May 20, 2021

{{Items}}

[[Category:Renewable resources]]

[[de:Amethystscherbe]]
[[es:Fragmento de amatista]]
[[fr:Éclat d'améthyste]]
[[it:Scheggia di ametista]]
[[ja:アメジストの欠片]]
[[lzh:紫水玉片]]
[[pl:Odłamek ametystu]]
[[pt:Fragmento de ametista]]
[[ru:Осколок аметиста]]
[[uk:Уламок аметисту]]
[[zh:紫水晶碎片]]</li><li>[[Lead|Lead]]<br/>{{About|the item used for leashing and leading mobs|the element|Element#Lead}}
{{Item
| image = Lead.png
| stackable = Yes (64)
| renewable = Yes
}}
'''Leads''' are [[tool]]s used to leash and lead passive and neutral [[animal]]s, [[golem]]s and some [[monster]]s.

== Obtaining ==
=== Chest loot ===
{{LootChestItem|lead}}

=== Crafting ===
{{Crafting
  |A1= String
  |B1= String    
  |A2= String
  |B2= Slimeball
  |C3= String
  |Output= Lead,2
  |type= Tool
}}

=== Mob loot ===
[[Wandering Trader|Wandering trader]]s always spawn with 2 [[llama|trader llama]]s, each held with a lead. When a trader llama is detached, either by killing it or the wandering trader, dragging them far apart, or putting the llama in a [[boat]] or a [[minecart]], the lead drops at the llama's position.

== Usage ==
=== Crafting ingredient ===

{{crafting usage}}

=== Leashing mobs ===
[[File:SuspendedPigs.png|190px|thumb|One block tall mobs, such as pigs, suspend at 7 blocks above the ground.]]
[[File:SuspendedCows.png|190px|thumb|Two block tall mobs, such as cows, also suspend at 7 blocks above the ground.]]

{{control|Using}} a lead on a [[mob]] ties the lead to the mob, allowing it to be moved by the player. Multiple mobs can be held by leads at once, but each mob held requires its own lead.

It is possible to leash the following mobs and other entities:

{{columns-list|colwidth=20em|
* {{EntityLink|Allay}}
* {{EntityLink|Axolotl}}
* {{EntityLink|Bee}}
* {{EntityLink|Boat}}{{only|bedrock}}
* {{EntityLink|Camel}}
* {{EntityLink|Cat}}
* {{EntityLink|Chicken}}
* {{EntityLink|Chicken Jockey}} (only the mount)
* {{EntityLink|Cow}}
* {{EntityLink|Dolphin}}
* {{EntityLink|Donkey}}
* {{EntityLink|Fox}}
* {{EntityLink|Frog}}
* {{EntityLink|Glow Squid}}
* {{EntityLink|Goat}}
* {{EntityLink|Hoglin}}
* {{EntityLink|Horse}}
* {{EntityLink|Iron Golem}}
* {{EntityLink|Llama}}
* {{EntityLink|Mooshroom}}
* {{EntityLink|Mule}}
* {{EntityLink|Ocelot}}
* {{EntityLink|Parrot}}
* {{EntityLink|Pig}}
* {{EntityLink|Polar Bear}}
* {{EntityLink|Rabbit}}
* {{EntityLink|Sheep}}
* {{EntityLink|Skeleton Horse}}
* {{EntityLink|Skeleton Horseman}} (only the mount)
* {{EntityLink|Sniffer}}
* {{EntityLink|Snow Golem}}
* {{EntityLink|Squid}}
* {{EntityLink|Strider}}
* {{EntityLink|Trader Llama}}
* {{EntityLink|Wolf}}
* {{EntityLink|Zoglin}}
* {{EntityLink|Zombie Horse}}}}

Additionally, [[villager]]s, [[wandering trader]]s, and [[monster]]s other than the ones listed above, can be leashed using a map editor or [[NBT]] editor. 

With a mob on a lead held by the player, {{control|using}} the lead on any type of [[fence]] (or [[wall]]{{only|bedrock|short=1}}) attaches the lead to it with a visible knot, tying the mob to it. To attach it to a wall on Bedrock Edition, the player must hold a lead in the main hand.<ref>{{bug|MCPE-108078}}</ref> Multiple leads may be attached to one fence post. A mob tied to a fence tends to stay within 5 blocks of the fence post.

A lead is broken by pressing the {{control|use item}} control on the mob again, hitting the knot, or removing the attached fence post. Leads also break when hit by projectiles. Whenever a lead is removed or broken, it drops as an [[item (entity)|item]] at the location of the mob. However, it does not drop when unleashed in Creative mode.{{only|java}}<ref>{{bug|MCPE-79639}}</ref> A lead does not break if the attached animal dies.

A lead can stretch a maximum of 10 blocks. If the mob is able to move towards the player or fence post, it does so. If not, or if the mob is moving very quickly away from the player, the lead breaks.

When the player or the knot is more than 7 blocks above the ground, the mob being leashed becomes suspended.

Most mobs that can be leashed can still be leashed even if attacking the player leashing them, and any attached leads do not break.

[[Wolf|Wolves]] cannot be leashed after becoming angry. Despite this, if they become angry while already leashed, the lead does not break, but it cannot be reattached when broken through other methods while the wolf is still angry.

A lead attached to a hoglin breaks if it becomes a [[zoglin]].

A lead does not prevent mobs from despawning if they normally would despawn.

When moving downwards and accelerating towards the ground, leashed mobs accumulate fall damage and take it if they hit the ground while still accelerating. When moving up or decelerating (such as when the lead is stretched to its limit), the fall distance is set to one block and the mob therefore does not take any fall damage if it touches the ground.

If the player walks into and back out of a [[nether portal]] while holding a lead connected to a mob, the lead remains attached to the mob. However, if a mob attached to a lead walks into a nether portal, the lead breaks and drops as an item in the other dimension.

A lead can be used to remove a mob from a boat without needing to break the boat, if the mob can normally be leashed.

If a chunk unloads while containing a leashed mob (either by the player walking too far away, or traveling to another dimension via a portal), the lead breaks and drops as an item, leaving the mob free to wander around.

== Sounds ==
{{Edition|Java}}:
{{Sound table
|sound=Lead Knot break1.ogg
|sound2=Lead Knot break2.ogg
|sound3=Lead Knot break3.ogg
|subtitle=Leash Knot breaks
|source=neutral
|description=When a leash knot is destroyed
|id=entity.leash_knot.break
|translationkey=subtitles.entity.leashknot.break
|volume=1.0
|pitch=1.0
|distance=16}}
{{Sound table
|sound=Lead Knot place1.ogg
|sound2=Lead Knot place2.ogg
|sound3=Lead Knot place3.ogg
|subtitle=Leash Knot tied
|source=neutral
|description=When a leash knot is placed on a fence
|id=entity.leash_knot.place
|translationkey=subtitles.entity.leashknot.place
|volume=1.0
|pitch=1.0
|distance=16
|foot=1}}

{{Edition|Bedrock}}:
{{Sound table
|type=bedrock
|sound=Lead Knot break1.ogg
|sound2=Lead Knot break2.ogg
|sound3=Lead Knot break3.ogg
|source=neutral
|description=When a leash knot is broken by {{ctrl|interacting}} with it
|id=leashknot.break
|volume=1.0
|pitch=1.0}}
{{Sound table
|sound=Lead Knot place1.ogg
|sound2=Lead Knot place2.ogg
|sound3=Lead Knot place3.ogg
|source=neutral
|description=When a leash knot is placed on a fence or wall
|id=leashknot.place
|volume=1.0
|pitch=1.0
|foot=1}}

== Leash Knot ==
'''Leash knot''' is an entity created when the [[player]] right-clicks the fence while having a mob leashed.
{{Entity| title = Leash Knot| image = Knot.png|imagesize= 100px|networkid='''[[JE]]''': 77}}
=== Data values ===
==== ID ====
{{edition|java}}:
{{ID table
|edition=java
|generatetranslationkeys=y
|displayname=Leash Knot
|spritetype=entity
|nameid=leash_knot
|foot=1}}

{{edition|bedrock}}:
{{ID table
|edition=bedrock
|shownumericids=y
|notshowbeitemforms=y
|generatetranslationkeys=y
|displayname=Leash Knot
|spritetype=entity
|nameid=leash_knot
|id=88
|foot=1}}

==== Entity data ====

Leash knots have entity data that define various properties of the entity.

{{el|java}}:
{{main|Entity format}}
{{/ED}}

{{el|bedrock}}:
: See [[Bedrock Edition level format/Entity format]].

== Data values ==
=== ID ===
{{edition|java}}:
{{ID table
|edition=java
|showforms=y
|generatetranslationkeys=y
|displayname=Lead
|spritetype=item
|nameid=lead
|form=item
|foot=1}}

{{edition|bedrock}}:
{{ID table
|edition=bedrock
|shownumericids=y
|showforms=y
|notshowbeitemforms=y
|generatetranslationkeys=y
|displayname=Lead
|spritetype=item
|nameid=lead
|id=547
|form=item
|foot=1}}

== Achievements ==

{{load achievements|So I Got That Going for Me}}

== Advancements ==

{{load advancements|When the Squad Hops into Town}}

== History ==
{{missing information|The history of a lot of mobs be leashed}}
{{History|java}}
{{History||1.6.1|snap=13w16a|[[File:Lead JE1 BE1.png|32px]] Added leads. 
|Leads do not currently have a tooltip and are called “leashes” in [http://www.mojang.com/2013/04/minecraft-snapshot-13w16a-and-new-launcher/ the change notes].}}
{{History|||snap=13w16b|Leads have been given a tooltip.}}
{{History|||snap=13w18a|Leads have been given a [[crafting]] recipe.}}
{{History||1.9|snap=15w50a|Added a [[sound]] for leads: <code>entity.leashknot.place</code>.}}
{{History||1.11|snap=16w32a|The [[entity]] ID of the knot has been changed from <code>LeashKnot</code> to <code>leash_knot</code>.}}
{{History|||snap=16w39a|Leads can now be found in [[woodland mansion]] chests.}}
{{History||1.13|snap=17w47a|Prior to [[1.13/Flattening|''The Flattening'']], this [[item]]'s numeral ID was 420.}}
{{History||1.14|snap=18w43a|[[File:Lead JE2 BE2.png|32px]] The texture of leads has been changed.}}
{{History|||snap=19w05a|Added [[wandering trader]]s, which are naturally equipped with leads.}}
{{History||1.15|snap=?|[[Bee]]s can now be leashed.}}
{{History||1.16|snap=20w09a|[[Skeleton horse]]s and [[zombie horse]]s can now be leashed.<ref>{{bug|MC-166246}}</ref>}}
{{History|||snap=?|[[Hoglin]]s can now be leashed.}}
{{History||1.16.2|snap=20w27a|[[Zoglin]]s can now be leashed.}}
{{History||1.17|snap=21w19a|[[Squid]]s and [[glow squid]]s can now be leashed.<ref>{{bug|MC-136647}}</ref>}}
{{History|||snap=?|[[Axolotl]]s can now be leashed.}}
{{History||1.19|snap=22w13a|Lead may now be found in [[ancient city]] [[chest]]s.}}
{{History|||snap=?|[[Frog]]s can now be leashed.}}
{{History||1.19.3|snap=22w42a|[[Camel]]s can now be leashed.|Mobs no longer accumulate fall damage when dangling on leads.<ref>{{bug|MC-14167||Mobs build up fall damage when dangling on a lead|Fixed}}</ref>}}
{{History||1.20 (Experimental)|link=1.19.4|snap=?|[[Sniffer]]s can now be leashed.}}
{{History||1.20|snap=23w12a|Lead can now be found in [[suspicious gravel]] and [[suspicious sand]] in [[trail ruins]].}}
{{History|||snap=23w16a|Lead no longer generates in [[suspicious sand]] in [[trail ruins]].|Due to the split of the archaeological loot tables for the suspicious gravel within the [[trail ruins]]; lead now is in the common loot.}}

{{History|pocket alpha}}
{{History||v0.15.0|snap=build 1|[[File:Lead JE1 BE1.png|32px]] Added leads.}}
{{History|pocket}}
{{History||1.1.0|snap=alpha 1.1.0.0|Leads now have better "physics".
|The [[entity]] ID of the knot has been changed from <code>leashknot</code> to <code>leash_knot</code>.
|Leads can now be found inside [[woodland mansion]] [[chest]]s.}}
{{History|bedrock}}
{{History||1.4.0|snap=beta 1.2.14.2|Leads can now be found inside [[buried treasure]] [[chest]]s.
|Leads can now be used on [[boat]]s.}}
{{History||1.4.0|snap=beta 1.2.20.1|Leads can now be used to craft [[balloon]]s.}}
{{History||1.10.0|snap=beta 1.10.0.3|[[File:Lead JE2 BE2.png|32px]] The texture of leads has been changed.
|[[Wandering trader]]s now [[drops|drop]] leads after they are detached from trader [[llama]]s.}}
{{History||1.14.0|snap=beta 1.14.0.1|Leads can now be used on [[polar bear]]s, [[ocelot]]s, [[parrot]]s, [[dolphin]]s and old [[villager]]s.}}
{{History||1.19.0|snap=beta 1.19.0.20|Allays can now be leashed.}}

{{History|console}}
{{History||xbox=TU19|xbone=CU7|ps=1.12|wiiu=Patch 1|switch=1.0.1|[[File:Lead JE1 BE1.png|32px]] Added leads.}}
{{History||xbox=TU43|xbone=CU33|ps=1.36|wiiu=Patch 13|[[Sound]]s have been added for leads.}}
{{History|Ps4}}
{{History||1.90|[[File:Lead JE2 BE2.png|32px]] The texture of leads has been changed.}}

{{History|3ds}}
{{History||0.1.0|[[File:Lead JE1 BE1.png|32px]] Added leads.}}
{{History|foot}}

== Issues ==
{{issue list|Lead|Leash}}

== Trivia ==
[[File:Steve wearing Lead.png|100px]] [[File:Alex wearing Lead.png|100px]]
* The lead is named as "leash" in the texture file.
* If a [[player]] goes to sleep while holding a mob on a lead, the lead remains attached.
* {{IN|Java}}, when using the {{cmd|item}} command to put a lead in a player's head slot, the item gets rotated and positioned in such a way that it looks like the player is wearing a monocle.

== Gallery ==
<gallery>
Multiple_Leash.png|Many animals can be tied to one fence post.
HorseLeashedOnAFence.png|A [[horse]] wearing [[golden horse armor]] that is leashed to a fence post.
ThreeTiedSheep.png|Three sheep tied to the same fence.
More accurate lead mobs.png|A shot of all the mobs that could be tied with leads as of 1.6.1, except donkeys and mules.
Yo Yo.png|With the use of the leash, it is possible to suspend animals in the air by tying the leash on high-up fence posts.
YoYo.png|A [[donkey]] with the Grumm/Dinnerbone [[name tag]] [[easter egg]] tied to a fence with a lead to make a yo-yo.
Flying_Sheep.png|Several [[sheep]] hanging in the air in [[Creative]] mode.
Pocket Edition Lead.jpg|First image of a lead in ''Bedrock Edition''.
</gallery>

== References ==
{{Reflist}}

== External Links ==
*[https://www.minecraft.net/en-us/article/taking-inventory-lead Taking Inventory: Lead] – Minecraft.net on April 8, 2022

{{items}}

{{entities}}

[[Category:Tools]]

[[de:Leine]]
[[es:Rienda]]
[[fr:Laisse]]
[[hu:Lasszó]]
[[it:Guinzaglio]]
[[ja:リード]]
[[ko:끈]]
[[nl:Leidtouw]]
[[pl:Smycz]]
[[pt:Laço]]
[[ru:Поводок]]
[[th:เชือกจูง]]
[[zh:拴绳]]
[[Category:Renewable resources]]</li></ul>
Jeb stated that there may be a BUD Switch in Minecraft
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