Tripwire Hook

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Tripwire Hook
Tripwire Hook.gif

Transparency

Yes
Luminance

No
Blast resistance

0
Tool

Any tool
Renewable

Yes
Stackable

Yes (64)
Flammable

No
Drops

Itself
Data value

dec: 131 hex: 83 bin: 10000011
Name

tripwire_hook
Disambig color.svg This article is about the hooks. For the tripwire connecting the hooks, see String § Redstone component.

A tripwire hook is a block that can be used to detect entities (players, mobs, items, etc.) when part of a tripwire circuit.

Obtaining[edit]

Breaking[edit]

To remove a tripwire hook, mine it. Tripwire hooks can be broken instantly using any tool, or without a tool.

A tripwire hook will also be removed and drop itself as an item if:

A tripwire hook will be destroyed without dropping itself as an item if lava flows into its space.

Crafting[edit]

Ingredients Crafting recipe
Iron Ingot +
Stick +
Any Planks
















2

Fishing[edit]

Tripwire hooks can be obtained as a "junk" item from fishing.

Natural generation[edit]

Four tripwire hooks are generated naturally in each jungle temple.

Usage[edit]

Tripwire hooks can be used as crafting ingredients or as redstone components.

Crafting ingredient[edit]

Tripwire hooks can be used to craft trapped chests.

Name Ingredients Crafting recipe
Crossbow Stick +
Iron Ingot +
String +
Tripwire Hook











Trapped Chest Tripwire Hook +
Chest












Redstone component[edit]

See also: Redstone circuit

A tripwire hook can be used to detect mobs, items, and other entities over a large area.

Placement
To place a tripwire hook, use the Place Block control.
A tripwire hook can be attached to the side of any full solid opaque block.
In order to function correctly, a tripwire hook must be part of a "tripwire circuit": a straight line of blocks consisting of a block with a tripwire hook attached to it, a "tripwire line" (1 to 40 blocks of tripwire), and a second tripwire hook attached to another block, with both tripwire hooks facing the tripwire.
To place tripwire, use the Place Block control with a string. Tripwire in a valid tripwire circuit has a short hitbox (0.09375 or 3/32 blocks high, with the bottom 0.0625 or 1/16 blocks above the block below), while tripwire not in a valid tripwire circuit has a taller hitbox (0.5 blocks high, bottom not raised).
The three states of a tripwire hook: not attached (folded), attached (straight), activated (depressed).
A tripwire hook in an invalid tripwire circuit appears "folded", while a tripwire hook in a valid tripwire circuit appears extended straight. Tripwire lines from separate tripwire circuits can be placed next to each other (in parallel), above each other, and even intersecting each other.
Activation
A tripwire hook in a valid tripwire circuit activates when certain entities (players, mobs, items, etc.) intersect the tripwire hook's tripwire line "hit box" (but not the tripwire hook itself), and deactivates when all entities leave or are removed from the tripwire line.
Entities that will not activate a tripwire circuit include thrown potions, some arrows, fireworks, thrown ender pearls, and thrown eyes of ender.
A tripwire hook also activates for 5 redstone ticks (0.5 seconds, barring lag) when any of its tripwires are destroyed, except when shears are used to destroy the tripwire.
Breaking the tripwire hook, or breaking the block it is attached to, does not generate a pulse.
Behavior
The tripwire hooks and the blocks they are attached to provide power, but the tripwire does not.
While active, a tripwire hook appears to move downwards and it:
Tripwire produces no power itself, but its state change can be detected with an observer.
Although destroying tripwire with shears will not activate a tripwire hook, it will change the tripwire hook's block state (its "attached" state from true to false) which can be detected with an observer.

Data values[edit]

Block data[edit]

See also: Data values

In Bedrock Edition, a tripwire hook's block data stores its orientation, connection status, and activation status:

Bits Values
0x1
0x2

A two-bit field storing a value from 0 to 3:

  • 0: Tripwire hook on block side facing south
  • 1: Tripwire hook on block side facing west
  • 2: Tripwire hook on block side facing north
  • 3: Tripwire hook on block side facing east
0x4 If set, the tripwire hook is connected and ready to trip ("middle" position).
0x8 If set, the tripwire hook is currently activated ("down" position)

Block state[edit]

See also: Block states
Name Value Description

 attached		 true
false		 True if the tripwire hook is connected to a valid tripwire circuit.

 facing		 north
south
east
west

The direction in which the tripwire hook juts out from the block it is attached to.

For example, a tripwire hook facing north will be attached to a block to its south.

 powered		 true
false		 True if the tripwire hook is active.

Video[edit]

Note: This video does not show the tripwire hook obtained from fishing, or it's crafting usage.

History[edit]

Java Edition
1.3.1 May 28, 2012 Dinnerbone released a series of cryptic tweets, starting with "I think I'm taking a big liking towards adventure maps. It's starting to show in my choice of new blocks."[1] He hinted at shears being used to disable the tripwire,[2] then posted a series of images[3][4][5] before revealing the name.[6] Afterwards, he posted a video[7] to reveal the functionality of the tripwire and finally credited the idea to his fiancee MissMarzenia.[8]
12w22a Added tripwire hooks.
1.5 13w01a Tripwire hooks are used to craft trapped chests.
1.7.2 13w36a Tripwire hooks can be obtained as one of the "junk" items by fishing.
1.8 14w11a The model was slightly changed.
14w17a The model was changed: the stick is now affected by the Smooth Lighting option, the iron is bigger, and the top, side, and stick textures were slightly changed.
1.9 15w49a The suspended block state is removed.
1.13 17w47a Prior to The Flattening, this block's numeral ID was 131.
Pocket Edition Alpha
0.13.0 build 1 Added tripwire hooks. They are used to craft trapped chests.
Legacy Console Edition
TU14 CU1 1.04 Patch 1 Added tripwire hooks.

Issues[edit]

Issues relating to "Tripwire" are maintained on the bug tracker. Report issues there.

Gallery[edit]

  • The first image of tripwires released by Mojang.

  • The second image of tripwires released by Mojang.

  • The third image of tripwires released by Mojang.

  • A comparison between a tripwire hook and a lever released by Mojang.

References[edit]

  1. ↑ “I think I'm taking a big liking towards adventure maps. It's starting to show in my choice of new blocks.” – @Dinnerbone, May 28, 2012
  2. ↑ “Experimenting with some new ideas. Perhaps one day we'll see a pair of shears inside every griefers' toolbox.” – @Dinnerbone, May 28, 2012
  3. ↑ “That awkward moment when you realize you just spent the last few days unknowingly designing a coat hanger. https://dl.dropbox.com/u/36087083/ZScreen/2012-05/28-Monday--0196.126866331.png …” – @Dinnerbone, May 28, 2012
  4. ↑ “Haha, I kinda see how it looks like a doorbell, too. Maybe if you pull it a golem should come out and yell "YOU RANG?" https://dl.dropbox.com/u/36087083/ZScreen/2012-05/28-Monday--0197.486672066.png …” – @Dinnerbone, May 28, 2012
  5. ↑ “Some people have got it right already, so this should clear up all further confusion and spoil the next update for you https://dl.dropbox.com/u/36087083/ZScreen/2012-05/28-Monday--0198.158946456.png …” – @Dinnerbone, May 28, 2012
  6. ↑ “It's a tripwire, yeah.” – @Dinnerbone, May 28, 2012
  7. ↑ "Tripwire Experiments" – Adams Nathan Adams, May 28, 1012 – via YouTube
  8. ↑ “Also, thanks to my wonderful fiancee @MissMarzenia for the idea. Seriously, all credit goes that way.” – @Dinnerbone, May 28, 2012

Redstone

View at: Template:Redstone/content [edit]

Blocks

View at: Template:Blocks/content [edit]
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