Observer

{
 "title": "Observer",
 "rows": [
 {
 "field": "Yes",
 "label": "(link to Renewable resource article, displayed as Renewable)"
 },
 {
 "field": "Yes (64)",
 "label": "Stackable"
 },
 {
 "field": "<span class=\"sprite-file\" style=\"height:32px;width:32px;--vertical-align:middle\">(link to File:Invicon Wooden Pickaxe.png article, displayed as 32x32px|link=|alt=Invicon Wooden Pickaxe.png: Sprite image for Wooden Pickaxe in Minecraft|class=pixel-image|A wooden pickaxe or better is required to mine this block)</span>",
 "label": "Tool"
 },
 {
 "field": "3",
 "label": "(link to Explosion#Blast resistance article, displayed as Blast resistance)"
 },
 {
 "field": "3",
 "label": "(link to Breaking#Blocks by hardness article, displayed as Hardness)"
 },
 {
 "field": "No",
 "label": "(link to Light article, displayed as Luminous)"
 },
 {
 "field": "No",
 "label": "(link to Opacity article, displayed as Transparent)"
 },
 {
 "field": "No",
 "label": "(link to Flammable article, displayed as Flammable)"
 },
 {
 "field": "No",
 "label": "Catches fire<br>from (link to lava article, displayed as lava)"
 },
 {
 "field": "<span style=\"white-space: nowrap;\"><span style=\"display: inline-block; background-color: rgb(112, 112, 112); border: 1px solid #888; border-radius: 0.3em; color: transparent; width: 1em; height: 1em; vertical-align: -0.36em; margin-right: -0.1em\"><br></span> 11 STONE</span>",
 "label": "(link to Map color article, displayed as Map color)"
 },
 {
 "field": "Bass Drum",
 "label": "(link to Note Block#Instruments article, displayed as Note block instrument)"
 },
 {
 "field": "Slow Bouncy ​<sup class=\" nowrap Inline-Template \" title=\"\">[<i><span title=\"This statement does not apply to upcoming versions of Minecraft\">until:</span> (link to Bedrock Edition 26.40 article, displayed as BE 26.40)</i>]</sup>(link to Category:Upcoming article, displayed as Category:Upcoming)(link to Category:Bedrock Edition upcoming tag article, displayed as Category:Bedrock Edition upcoming tag)",
 "label": "(link to Sulfur Cube#Archetypes article, displayed as Sulfur cube archetype)"
 }
 ],
 "invimages": [
 "Observer"
 ],
 "images": [
 "Observer.png",
 "Observer (back).gif"
 ]
}

Obtaining

Breaking

1. ↑ These durations ignore any other influential factors (e.g., Mining Fatigue) and are measured in seconds. For more information, see Breaking § Speed.

Crafting

Usage

Behavior

Limitations

Sounds

Data values

ID

1. ↑ ID of block's direct item form, which is used in savegame files and addons.
2. ↑ Available with /give command.
3. ↑ The block's direct item form has the same ID as the block.

Block states

Videos

History

Development

Java Edition

Bedrock Edition

Legacy Console Edition

New Nintendo 3DS Edition

Data history

Issues

Trivia

Gallery

Mojang images

See also

References

1. ↑ For example, a button attached to a block, when breaking the block, that button breaks and causes block update that can be detected by observer.
2. ↑ For example, a mushroom are on light level of 13, according to the Minecraft Wiki, at level 13 and above, mushroom uproots unless on mycelium, podzol, or nylium. When the mushroom is updated, that mushroom breaks and causes a block update that can be detected by observer.
3. ↑ Another example, a wheat crop uproots at level 0 or below. When updating the wheat, that wheat breaks and causes a block update that can be detected by observer.
4. ↑ While it's not possible to set this up normally (since the observer has to place on the side of the cactus (because the top and the bottom are already occupied by the fluid and the block that supports the cactus (like sand) relatively), which causes the cactus to break), it's possible to reproduce this using the /fill ~ ~ ~ cactus strict command.^[verify]
5. ↑ For example, places 2 chorus plants on top of an end stone, and when a chorus plant is placed on the side of the bottom one, that "bottom" chorus plant breaks and causes block update, which can be detected by the observer.
6. ↑ Will be detected without the strict argument, will not with the strict argument.
7. ↑ MC-107664
8. ↑ MCPE-130935
9. ↑ In Java Edition removing an end portal frame block won't destroy the portal.
10. ↑ In Java Edition the game rule max_snow_accumulation_height must be larger than 1.
11. ↑ When the fluid source block is removed, all of the fluid flowing from the source is removed and causes a block update.
12. ↑ In Bedrock Edition, the death of a coral fan cannot happen under normal circumstances — it happens the next tick after the coral fan is placed, so the observer has already read the placement or water removal update, and coral fans placed using commands are waterlogged — but if lag is used to make the unwaterlogging and death events happen separately, the observer detects both. For coral, the death also happens too fast for the observer to detect it separate from the placement or water removal, but a non-waterlogged coral can be placed using commands. Coral blocks take multiple seconds to die, and removing water next to the coral block does not activate the observer anyway, so they can be detected under normal circumstances.
13. ↑ This event cannot normally happen, but if commands are used to place a wet sponge in the Nether, the sponge dries when it receives a random tick.
14. ↑ The disarmed‌^{[JE only]} or disarmed_bit‌^{[BE only]} block state cannot change without also detaching the tripwire, so this event cannot happen in isolation.
15. ↑ In Bedrock Edition, placing a pumpkin or melon next to a corresponding stem does not cause the stem to attach.
16. ↑ From nothing to small to medium to large and finally to cluster.
17. ↑ In Bedrock Edition, using bone meal on a coral block does not create sea pickles, due to MCPE-171383.
18. ↑ Includes short grass, tall grass, 1-block-tall flowers, seagrass, tall seagrass, coral, (wall) coral fan, moss carpet, azalea, flowering azalea, crimson roots, warped roots, Nether fungus, Nether sprouts, twisting vine, and pink petals.
19. ↑ Applies to the block under the sapling and the area around the sapling.
20. ↑ "Hype train! @darngeek is working on a device that acts as a proper BUD block in MC:PE (PC eventually), currently called "Observer"" – @jeb_ (Jens Bergensten) on X (formerly Twitter), May 2, 2016
21. ↑ ^{a b} "Here's my rejected graphics for the Observer, because @darngeek has no artistic sensibility" – @_tomcc (Tommaso Checchi) on X (formerly Twitter), May 2, 2016
22. ↑ MC-107410
23. ↑ MC-107783
24. ↑ MCPE-17439
25. ↑ MC-108696
26. ↑ MC-107934
27. ↑ MCPE-17321
28. ↑ MC-107795
29. ↑ MC-107730
30. ↑ MC-108897
31. ↑ MC-107760
32. ↑ MC-108697
33. ↑ MC-107623
34. ↑ MC-146824
35. ↑ MC-176644
36. ↑ "I kept confusing myself which side was front and back, so here's something inspired by the works of @_tomcc http://i.imgur.com/IK2d8m2.png" – @jeb_ (Jens Bergensten) on X (formerly Twitter), November 7, 2016

1. ↑ ^{a b} When deactivated, the sculk sensor's and the calibrated sculk sensor's "sculk_sensor_phase" block stage is converted from "active"->"cooldown"->"inactive". This means that a deactivating sculk sensor actually triggers an observer twice in a row.

External links

Navigation