Erosion

Erosion is a gameplay mechanic that dictates that water or any other liquids can erode substances and lay sediment at other places. If an item successfully receives an erosion tick, the block will drop sediment in the direction if the water flow. If there is a flowing water that hits a sand pillar, there is a chance that 1/16 block of sediment will fall down to the end of the water stream. Lava can do the same. Erosion effects every block. Sediment can stack on top of each other. Sand is the fastest eroding block. Wood and all of the unbreakable blocks are completely immune to erosion.
== Erosion Tick ==
Normally, an erosion tick occurs every 50 ticks, or 2.5 seconds. That can be changed using commands. If the world erosion constant is 1, than erosion will work at normal speed. If the erosion constant is 2, than erosion ticks will run every 25 ticks, or double the speed. If the erosion constant is 0.5, a tick will occur every five seconds, or half the speed. At erosion constant 1 and if flowing water is running over a block, the secondary constant is 50. The secondary constant multiplied by the world erosion constant equals the number of ticks it requires for an erosion tick. In the Nether, the secondary constant is halved, meaning that erosion happens at double speed. In the End, the secondary constant is doubled, meaning that erosion works at half-speed. Rain will not cause sediment to move from block to block, but it can still rust iron and oxidize copper.
== Blocks ==
Erosion affects any block except any wood-based block, bedrock, structure block, command block, barrier, and other unbreakable blocks. Each block has a chance of succumbing to erosion. Some blocks (like sand) have a higher chance of giving in than others (like diamond blocks). The block erosion constants I am giving below are split into sand and non-sand types. Sand types erode much quicker than non-sand types. Because the erosion process is very random, flowing water can form gullies in dirt/sand pyramids, making each attempt random. The block constants below are effectively how many erosion ticks it would have to receive before dropping one layer of sediment in the direction of flowing water. Sand blocks will take only 3 minutes and 20 seconds to fully erode.
Sand 	5
Red Sand 	6
Soul Sand	15
Gravel 	175
=== Non-Sand Type ===
Blocks that are not sand, red sand, or gravel will erode based on how long it takes to break the block with a fist. A fist can destroy a stone block in only 7.5 seconds. Stone has a block erosion constant of 1200. Deepslate/Grimstone has a constant of 2400. Every non-sand type block will have a constant of 160 for every second it takes for a fist to break the block. To calculate the erosion time for 1/16 of a block in seconds, get the erosion constant and multiply it by the erosion tick interval, which is usually 2.5 seconds for water and one second for lava. It would take nearly 18 hours IRL to erode 1/16 of an obsidian block. Obsidian has a constant of 40000 and netherrack has a constant of 320. To erode a whole block of obsidian, it would require 18.5 days IRL. It erode a full block of netherrack, it will only take 3.5 hours.
=== Dirt ===
Dirt has an erosion constant of 30. Grass blocks have an erosion constant of 100 for the first quarter of the block and 30 for the rest. Mycelium has a constant of 85 for the first quarter of the block and 30 for the rest. Soul soil has a constant of 50.
== Lava ==
Lava will erode a block 2.5 times faster than water.
== Sediment ==
When water or lava has eroded a 1/16 of a block, that sediment will follow the fluid down to the next solid block that it hits. A block space can have different types of sediment, for example the first layer is sand, the second stone, the third netherrack, etc. When a sediment is mined, all layers will be dropped as [BLOCK NAME] Sediment. Sediment can be stacked up to 64 in an inventory and can use special tools to change back into blocks. If a block space is 9/16 sand sediment and 1/16 stone sediment, that block will drop 9 "Sand Sediment" and 1 "Stone Sediment" when dropped. That can be turned back into blocks if 16 of a given sediment are gathered. When a sediment is mined, it will take 1/16 the time needed. If there is a sediment with one obsidian layer and five cobblestone layers, mining the sediment block with a stone tier or iron tier pickaxe will only yield the cobblestone sediments because the obsidian layer requires diamond to mine. One layer of sediment requires 1/16 mining time to mine. If an obsidian block takes 10 seconds to mine, a sediment layer requires only one sixteenth of the time to mine. If there is an obsidian layer and a diorite sediment in a sediment block, it will require 1/16 the obsidian block's mining time plus 1/16 the diorite's mining time to calculate for the mining time for the sediment. When sixteen sediment layers of the exact same kind are detected in one block, they will become a full block. When that block is mined, it will yield its full block form.
Category:Concepts