PaperMC/patches/server/0628-Add-basic-Datapack-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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4.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Connor Linfoot <connorlinfoot@me.com>
Date: Sun, 16 May 2021 15:07:34 +0100
Subject: [PATCH] Add basic Datapack API
diff --git a/src/main/java/io/papermc/paper/datapack/PaperDatapack.java b/src/main/java/io/papermc/paper/datapack/PaperDatapack.java
new file mode 100644
index 0000000000000000000000000000000000000000..9b7dd8a0fba4547f5268b3f99e21ddbe6b5bf566
--- /dev/null
+++ b/src/main/java/io/papermc/paper/datapack/PaperDatapack.java
@@ -0,0 +1,50 @@
+package io.papermc.paper.datapack;
+
+import io.papermc.paper.event.server.ServerResourcesReloadedEvent;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.packs.repository.Pack;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class PaperDatapack implements Datapack {
+ private final String name;
+ private final Compatibility compatibility;
+ private final boolean enabled;
+
+ PaperDatapack(Pack loader, boolean enabled) {
+ this.name = loader.getId();
+ this.compatibility = Compatibility.valueOf(loader.getCompatibility().name());
+ this.enabled = enabled;
+ }
+
+ @Override
+ public String getName() {
+ return name;
+ }
+
+ @Override
+ public Compatibility getCompatibility() {
+ return compatibility;
+ }
+
+ @Override
+ public boolean isEnabled() {
+ return enabled;
+ }
+
+ @Override
+ public void setEnabled(boolean enabled) {
+ if (enabled == this.enabled) {
+ return;
+ }
+
+ MinecraftServer server = MinecraftServer.getServer();
+ List<String> enabledKeys = server.getPackRepository().getSelectedPacks().stream().map(Pack::getId).collect(Collectors.toList());
+ if (enabled) {
+ enabledKeys.add(this.name);
+ } else {
+ enabledKeys.remove(this.name);
+ }
+ server.reloadResources(enabledKeys, ServerResourcesReloadedEvent.Cause.PLUGIN);
+ }
+}
diff --git a/src/main/java/io/papermc/paper/datapack/PaperDatapackManager.java b/src/main/java/io/papermc/paper/datapack/PaperDatapackManager.java
new file mode 100644
index 0000000000000000000000000000000000000000..cf4374493c11057451a62a655514415cf6b298e0
--- /dev/null
+++ b/src/main/java/io/papermc/paper/datapack/PaperDatapackManager.java
@@ -0,0 +1,25 @@
+package io.papermc.paper.datapack;
+
+import java.util.Collection;
+import java.util.stream.Collectors;
+import net.minecraft.server.packs.repository.Pack;
+import net.minecraft.server.packs.repository.PackRepository;
+
+public class PaperDatapackManager implements DatapackManager {
+ private final PackRepository repository;
+
+ public PaperDatapackManager(PackRepository repository) {
+ this.repository = repository;
+ }
+
+ @Override
+ public Collection<Datapack> getPacks() {
+ Collection<Pack> enabledPacks = repository.getSelectedPacks();
+ return repository.getAvailablePacks().stream().map(loader -> new PaperDatapack(loader, enabledPacks.contains(loader))).collect(Collectors.toList());
+ }
+
+ @Override
+ public Collection<Datapack> getEnabledPacks() {
+ return repository.getSelectedPacks().stream().map(loader -> new PaperDatapack(loader, true)).collect(Collectors.toList());
+ }
+}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 11f9add86f43923ceab9eebc5371c2bfc3990f98..ab8ab0180508948c7b21bafcbf914483673047d3 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -282,6 +282,7 @@ public final class CraftServer implements Server {
public boolean ignoreVanillaPermissions = false;
private final List<CraftPlayer> playerView;
public int reloadCount;
+ private final io.papermc.paper.datapack.PaperDatapackManager datapackManager; // Paper
public static Exception excessiveVelEx; // Paper - Velocity warnings
static {
@@ -368,6 +369,7 @@ public final class CraftServer implements Server {
if (this.configuration.getBoolean("settings.use-map-color-cache")) {
MapPalette.setMapColorCache(new CraftMapColorCache(this.logger));
}
+ datapackManager = new io.papermc.paper.datapack.PaperDatapackManager(console.getPackRepository()); // Paper
}
public boolean getCommandBlockOverride(String command) {
@@ -2770,5 +2772,11 @@ public final class CraftServer implements Server {
public com.destroystokyo.paper.entity.ai.MobGoals getMobGoals() {
return mobGoals;
}
+
+ @Override
+ public io.papermc.paper.datapack.PaperDatapackManager getDatapackManager() {
+ return datapackManager;
+ }
+
// Paper end
}