PaperMC/patches/server/0082-Add-PlayerUseUnknownEntityEvent.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: Jedediah Smith <jedediah@silencegreys.com>
Date: Sat, 2 Apr 2016 05:09:16 -0400
Subject: [PATCH] Add PlayerUseUnknownEntityEvent
diff --git a/src/main/java/net/minecraft/network/protocol/game/ServerboundInteractPacket.java b/src/main/java/net/minecraft/network/protocol/game/ServerboundInteractPacket.java
index 8834ed411a7db86b4d2b88183a1315317107d719..c45b5ab6776f3ac79f856c3a6467c510e20db25a 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ServerboundInteractPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ServerboundInteractPacket.java
@@ -10,8 +10,8 @@ import net.minecraft.world.entity.Entity;
import net.minecraft.world.phys.Vec3;
public class ServerboundInteractPacket implements Packet<ServerGamePacketListener> {
- private final int entityId;
- private final ServerboundInteractPacket.Action action;
+ private final int entityId; public final int getEntityId() { return this.entityId; } // Paper - add accessor
+ private final ServerboundInteractPacket.Action action; public final ServerboundInteractPacket.ActionType getActionType() { return this.action.getType(); } // Paper - add accessor
private final boolean usingSecondaryAction;
static final ServerboundInteractPacket.Action ATTACK_ACTION = new ServerboundInteractPacket.Action() {
@Override
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 9f0a5b950a022aa2a3d3d60837fdb9023f041a9b..b86f742c4a7500f0bb241d5c07a077aa1be1c7e5 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -2644,8 +2644,37 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
});
}
}
+ // Paper start - fire event
+ else {
+ packet.dispatch(new net.minecraft.network.protocol.game.ServerboundInteractPacket.Handler() {
+ @Override
+ public void onInteraction(net.minecraft.world.InteractionHand hand) {
+ ServerGamePacketListenerImpl.this.callPlayerUseUnknownEntityEvent(packet, hand);
+ }
+
+ @Override
+ public void onInteraction(net.minecraft.world.InteractionHand hand, net.minecraft.world.phys.Vec3 pos) {
+ ServerGamePacketListenerImpl.this.callPlayerUseUnknownEntityEvent(packet, hand);
+ }
+
+ @Override
+ public void onAttack() {
+ ServerGamePacketListenerImpl.this.callPlayerUseUnknownEntityEvent(packet, net.minecraft.world.InteractionHand.MAIN_HAND);
+ }
+ });
+ }
+
+ }
+ private void callPlayerUseUnknownEntityEvent(ServerboundInteractPacket packet, InteractionHand hand) {
+ this.cserver.getPluginManager().callEvent(new com.destroystokyo.paper.event.player.PlayerUseUnknownEntityEvent(
+ this.getCraftPlayer(),
+ packet.getEntityId(),
+ packet.getActionType() == ServerboundInteractPacket.ActionType.ATTACK,
+ hand == InteractionHand.MAIN_HAND ? EquipmentSlot.HAND : EquipmentSlot.OFF_HAND
+ ));
}
+ // Paper end
@Override
public void handleClientCommand(ServerboundClientCommandPacket packet) {