Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-11-15 04:20:04 +01:00
c5a10665b8
Spigot still maintains some partial implementation of "tick skipping", a practice in which the MinecraftServer.currentTick field is updated not by an increment of one per actual tick, but instead set to System.currentTimeMillis() / 50. This behaviour means that the tracked tick may "skip" a tick value in case a previous tick took more than the expected 50ms. To compensate for this in important paths, spigot/craftbukkit implements "wall-time". Instead of incrementing/decrementing ticks on block entities/entities by one for each call to their tick() method, they instead increment/decrement important values, like an ItemEntity's age or pickupDelay, by the difference of `currentTick - lastTick`, where `lastTick` is the value of `currentTick` during the last tick() call. These "fixes" however do not play nicely with minecraft's simulation distance as entities/block entities implementing the above behaviour would "catch up" their values when moving from a non-ticking chunk to a ticking one as their `lastTick` value remains stuck on the last tick in a ticking chunk and hence lead to a large "catch up" once ticked again. Paper completely removes the "tick skipping" behaviour (See patch "Further-improve-server-tick-loop"), making the above precautions completely unnecessary, which also rids paper of the previous described incompatibility with non-ticking chunks.
71 Zeilen
4.9 KiB
Diff
71 Zeilen
4.9 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 1ba2b1aaf0936963aca73a43632f978c95bf95e6..639dd562b7eda25004ea10d6c481173afb214773 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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@@ -1542,6 +1542,7 @@ 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 - BlockPhysicsEvent
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this.profiler.push(() -> {
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String s = String.valueOf(worldserver);
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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 de1708e5d39561115d2825eea4a5f6e1f1f4e5b8..1e5b42fc3903b14537d232c8adbbaf79078d8d8e 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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@@ -227,6 +227,7 @@ 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 - BlockPhysicsEvent
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public LevelChunk getChunkIfLoaded(int x, int z) {
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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 dfb349ed8a0fb981b3234baf040bd3297a555ebf..024da1029baecae639d7c05b5f7c30dbaa67b006 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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@@ -491,7 +491,7 @@ 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 - BlockPhysicsEvent
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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 75109c79daa724340268438725bbf6d39b955691..a7b4b5600e3c889c69ac22294899713d50b5fe5c 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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@@ -28,7 +28,7 @@ public abstract class BushBlock extends Block {
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protected 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 cb76568cd1f97024c7a40328d9d72dd8a3e72e8b..7fdf744a2be55313cc75c1322f6534f55cf463f5 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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@@ -102,7 +102,7 @@ public class DoublePlantBlock extends BushBlock {
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protected static void preventDropFromBottomPart(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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