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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.
125 lines
4.7 KiB
Diff
125 lines
4.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Connor Linfoot <connorlinfoot@me.com>
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Date: Sun, 16 May 2021 15:07:34 +0100
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Subject: [PATCH] Add basic Datapack API
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diff --git a/src/main/java/io/papermc/paper/datapack/PaperDatapack.java b/src/main/java/io/papermc/paper/datapack/PaperDatapack.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..9b7dd8a0fba4547f5268b3f99e21ddbe6b5bf566
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/datapack/PaperDatapack.java
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@@ -0,0 +1,50 @@
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+package io.papermc.paper.datapack;
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+
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+import io.papermc.paper.event.server.ServerResourcesReloadedEvent;
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+import net.minecraft.server.MinecraftServer;
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+import net.minecraft.server.packs.repository.Pack;
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+import java.util.List;
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+import java.util.stream.Collectors;
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+
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+public class PaperDatapack implements Datapack {
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+ private final String name;
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+ private final Compatibility compatibility;
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+ private final boolean enabled;
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+
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+ PaperDatapack(Pack loader, boolean enabled) {
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+ this.name = loader.getId();
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+ this.compatibility = Compatibility.valueOf(loader.getCompatibility().name());
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+ this.enabled = enabled;
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+ }
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+
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+ @Override
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+ public String getName() {
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+ return name;
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+ }
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+
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+ @Override
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+ public Compatibility getCompatibility() {
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+ return compatibility;
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+ }
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+
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+ @Override
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+ public boolean isEnabled() {
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+ return enabled;
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+ }
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+
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+ @Override
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+ public void setEnabled(boolean enabled) {
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+ if (enabled == this.enabled) {
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+ return;
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+ }
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+
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+ MinecraftServer server = MinecraftServer.getServer();
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+ List<String> enabledKeys = server.getPackRepository().getSelectedPacks().stream().map(Pack::getId).collect(Collectors.toList());
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+ if (enabled) {
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+ enabledKeys.add(this.name);
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+ } else {
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+ enabledKeys.remove(this.name);
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+ }
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+ server.reloadResources(enabledKeys, ServerResourcesReloadedEvent.Cause.PLUGIN);
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+ }
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+}
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diff --git a/src/main/java/io/papermc/paper/datapack/PaperDatapackManager.java b/src/main/java/io/papermc/paper/datapack/PaperDatapackManager.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..cf4374493c11057451a62a655514415cf6b298e0
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/datapack/PaperDatapackManager.java
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@@ -0,0 +1,25 @@
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+package io.papermc.paper.datapack;
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+
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+import java.util.Collection;
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+import java.util.stream.Collectors;
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+import net.minecraft.server.packs.repository.Pack;
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+import net.minecraft.server.packs.repository.PackRepository;
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+
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+public class PaperDatapackManager implements DatapackManager {
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+ private final PackRepository repository;
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+
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+ public PaperDatapackManager(PackRepository repository) {
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+ this.repository = repository;
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+ }
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+
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+ @Override
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+ public Collection<Datapack> getPacks() {
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+ Collection<Pack> enabledPacks = repository.getSelectedPacks();
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+ return repository.getAvailablePacks().stream().map(loader -> new PaperDatapack(loader, enabledPacks.contains(loader))).collect(Collectors.toList());
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+ }
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+
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+ @Override
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+ public Collection<Datapack> getEnabledPacks() {
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+ return repository.getSelectedPacks().stream().map(loader -> new PaperDatapack(loader, true)).collect(Collectors.toList());
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+ }
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+}
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index 99ff052c1935b9eba5fc519ae18c335893595337..1b320ab17379da9b82320e63babb0f395d4b85a8 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -305,6 +305,7 @@ public final class CraftServer implements Server {
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private final List<CraftPlayer> playerView;
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public int reloadCount;
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public Set<String> activeCompatibilities = Collections.emptySet();
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+ private final io.papermc.paper.datapack.PaperDatapackManager datapackManager; // Paper
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public static Exception excessiveVelEx; // Paper - Velocity warnings
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static {
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@@ -389,6 +390,7 @@ public final class CraftServer implements Server {
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if (this.configuration.getBoolean("settings.use-map-color-cache")) {
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MapPalette.setMapColorCache(new CraftMapColorCache(this.logger));
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}
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+ datapackManager = new io.papermc.paper.datapack.PaperDatapackManager(console.getPackRepository()); // Paper
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}
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public boolean getCommandBlockOverride(String command) {
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@@ -3006,5 +3008,11 @@ public final class CraftServer implements Server {
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public com.destroystokyo.paper.entity.ai.MobGoals getMobGoals() {
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return mobGoals;
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}
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+
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+ @Override
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+ public io.papermc.paper.datapack.PaperDatapackManager getDatapackManager() {
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+ return datapackManager;
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+ }
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+
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// Paper end
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}
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