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01a13871de
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.
70 lines
5 KiB
Diff
70 lines
5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Mon, 28 Mar 2016 19:55:45 -0400
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Subject: [PATCH] Only process BlockPhysicsEvent if a plugin has a listener
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Saves on some object allocation and processing when no plugin listens to this
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index c0b8daca75feec011423ba4b4ef5900558bc4d92..7dce9f0355c74828f40b07276c34e352132a2549 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -1350,6 +1350,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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while (iterator.hasNext()) {
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ServerLevel worldserver = (ServerLevel) iterator.next();
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+ worldserver.hasPhysicsEvent = org.bukkit.event.block.BlockPhysicsEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper
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this.profiler.push(() -> {
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return worldserver + " " + worldserver.dimension().location();
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index 51603dcbe81301557757152404c33fc91e21dc1a..81d24e082ad8be36db40c0ab62db3386401aa821 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -215,6 +215,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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// CraftBukkit start
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public final LevelStorageSource.LevelStorageAccess convertable;
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public final UUID uuid;
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+ public boolean hasPhysicsEvent = true; // Paper
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@Override public LevelChunk getChunkIfLoaded(int x, int z) { // Paper - this was added in world too but keeping here for NMS ABI
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return this.chunkSource.getChunk(x, z, false);
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diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
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index d612b59e04fcd01a8e2c4c7f43d8735fc208b520..39b2071a6fc6510929416ccbdf2022cf471ab26c 100644
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--- a/src/main/java/net/minecraft/world/level/Level.java
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+++ b/src/main/java/net/minecraft/world/level/Level.java
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@@ -493,7 +493,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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// CraftBukkit start
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iblockdata1.updateIndirectNeighbourShapes(this, blockposition, k, j - 1); // Don't call an event for the old block to limit event spam
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CraftWorld world = ((ServerLevel) this).getWorld();
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- if (world != null) {
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+ if (world != null && ((ServerLevel)this).hasPhysicsEvent) { // Paper
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BlockPhysicsEvent event = new BlockPhysicsEvent(world.getBlockAt(blockposition.getX(), blockposition.getY(), blockposition.getZ()), CraftBlockData.fromData(iblockdata));
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this.getCraftServer().getPluginManager().callEvent(event);
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diff --git a/src/main/java/net/minecraft/world/level/block/BushBlock.java b/src/main/java/net/minecraft/world/level/block/BushBlock.java
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index d40e791529911ca81398ac267a819415da91502a..03fde6e47c4a347c62fe9b4a3351769aedf874f6 100644
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--- a/src/main/java/net/minecraft/world/level/block/BushBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/BushBlock.java
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@@ -24,7 +24,7 @@ public class BushBlock extends Block {
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public BlockState updateShape(BlockState state, Direction direction, BlockState neighborState, LevelAccessor world, BlockPos pos, BlockPos neighborPos) {
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// CraftBukkit start
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if (!state.canSurvive(world, pos)) {
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- if (!org.bukkit.craftbukkit.event.CraftEventFactory.callBlockPhysicsEvent(world, pos).isCancelled()) {
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+ if (!(world instanceof net.minecraft.server.level.ServerLevel && ((net.minecraft.server.level.ServerLevel) world).hasPhysicsEvent) || !org.bukkit.craftbukkit.event.CraftEventFactory.callBlockPhysicsEvent(world, pos).isCancelled()) { // Paper
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return Blocks.AIR.defaultBlockState();
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}
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}
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diff --git a/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java b/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java
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index a90f6cc0d8c0f6d115e59d07b1b4c9b45fe0ad1e..fa97966d39f01301a8ba976c02dc697e0a74bfb1 100644
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--- a/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java
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@@ -93,7 +93,7 @@ public class DoublePlantBlock extends BushBlock {
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protected static void preventCreativeDropFromBottomPart(Level world, BlockPos pos, BlockState state, Player player) {
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// CraftBukkit start
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- if (org.bukkit.craftbukkit.event.CraftEventFactory.callBlockPhysicsEvent(world, pos).isCancelled()) {
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+ if (((net.minecraft.server.level.ServerLevel)world).hasPhysicsEvent && org.bukkit.craftbukkit.event.CraftEventFactory.callBlockPhysicsEvent(world, pos).isCancelled()) { // Paper
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return;
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}
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// CraftBukkit end
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