dec: 19 hex: 13 bin: 10011
Sponge can currently only be obtained in creative mode or by inventory editing.
A wet sponge can be dried in a furnace making the sponge reusable. If a bucket is placed in the fuel slot after the fuel is used up, including if the fuel was lava in a bucket, the water will drain into the bucket. This is currently the only way to get the water back.
Sponges currently have no use but decoration.
Sponges will absorb a 5×5×5 area of water around themselves in a "sphere". The sponge must be directly touching a water source to absorb water, and will only absorb water connected to an adjacent water block touching the sponge.
When a sponge absorbs water, it will convert to a wet sponge, which is darker, drips water, and is unable to soak up any more water.
|May 24, 2009||Sponge was suggested on the TIGSource forums.|
|0.0.18a_02||Sponge block test.|
|0.0.19a||Sponge block added. The sponge was a temporary fix to stop water from flooding until finite water was implemented. It soaked up water in a 5×5×5 volume around it. Sponges did not need light to survive, and would decay. It was also used for yellow pixels in pixel art, before yellow wool was introduced in 0.0.20 later that day.|
|Because sponge could soak up water while being hidden in walls or floors, it could as a defense against griefers, confusing them and slowing down attempts to flood an underground development, leaving more time for them to be caught and stopped.|
|0.0.19a_06||Sponges no longer decay, a change which was made within 50 minutes of the release of 0.0.19a|
|January 13, 2010||The original need for sponge was removed, with the implementation of finite water|
|Sponges became non-functional and available only by inventory editing.|
|A sponge could be used in redstone builds for updating blocks, in conjunction with BUDs (block update detectors): if a sponge was placed and then removed, all blocks within its 5×5×5 range would be updated. The cause of this was some remaining code for the sponge's water removing property.|
|1.8||Sponges, still without their absorbing function, became available in Creative Mode.|
|1.1||12w07a||Sponges would no longer update blocks within their 5×5×5 range.|
|1.8||June 8, 2014||Jeb tweeted that the ability to erase water blocks would be returned to the sponge. The linked image revealed that the sponge would have a new texture which becomes darker once it absorbs water.|
|14w25a||Sponges were retextured, became obtainable in Survival Mode, and now soak up contiguous water source blocks out to a taxicab distance of 5 when placed, thereupon turning into a wet sponge.|
|Pocket Edition Alpha|
|0.8.0||build 2||Added sponges to Creative mode.|
|TU5||Added sponges to Creative mode.|