Paper/patches/server/0899-Block-Ticking-API.patch
Spottedleaf 01a13871de
Rewrite chunk system (#8177)
Patch documentation to come

Issues with the old system that are fixed now:
- World generation does not scale with cpu cores effectively.
- Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps.
- Unreliable prioritisation of chunk gen/load calls that block the main thread.
- Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved.
- Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal.
- Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles.

The above list is not complete. The patch documentation will complete it.

New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil.

Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft.

The old legacy chunk system patches have been moved to the removed folder in case we need them again.
2022-09-26 01:02:51 -07:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Sun, 26 Dec 2021 13:23:46 -0500
Subject: [PATCH] Block Ticking API
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
index bfe9dc935c87e01fb435d8b46ce413b84ca74856..0d47460494135d4ec4c95260de033e054c2f0404 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
@@ -736,5 +736,21 @@ public class CraftBlock implements Block {
public boolean isValidTool(ItemStack itemStack) {
return getDrops(itemStack).size() != 0;
}
+
+ @Override
+ public void tick() {
+ net.minecraft.world.level.block.state.BlockState blockData = this.getNMS();
+ net.minecraft.server.level.ServerLevel level = this.world.getMinecraftWorld();
+
+ blockData.getBlock().tick(blockData, level, this.position, level.random);
+ }
+
+ @Override
+ public void randomTick() {
+ net.minecraft.world.level.block.state.BlockState blockData = this.getNMS();
+ net.minecraft.server.level.ServerLevel level = this.world.getMinecraftWorld();
+
+ blockData.getBlock().randomTick(blockData, level, this.position, level.random);
+ }
// Paper end
}
diff --git a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
index aae7f7ab4931db8f955c3055157fe01f99931ec7..e4c15fcbd21f70836c26133ef10f3d0da9b6c238 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
@@ -614,4 +614,10 @@ public class CraftBlockData implements BlockData {
return this.state.isFaceSturdy(EmptyBlockGetter.INSTANCE, BlockPos.ZERO, CraftBlock.blockFaceToNotch(face), CraftBlockSupport.toNMS(support));
}
+ // Paper start - Block tick API
+ @Override
+ public boolean isRandomlyTicked() {
+ return this.state.isRandomlyTicking();
+ }
+ // Paper end
}