papermc/patches/server/0449-Optimize-sending-packets-to-nearby-locations-sounds-.patch
Nassim Jahnke 17f71ac87b
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#5904)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
70d24eb8 SPIGOT-6587: Update documentation/error of drop chance API

CraftBukkit Changes:
470050ad SPIGOT-6587: Update documentation/error of drop chance API
1c39efa3 Fix Inventory#getViewers on the player inventory not returning the player first time their inventory is opened
d161627d Fix PrepareItemCraftEvent#isRepair
aa1fae73 SPIGOT-6586: EntityChangeBlockEvent for falling block does not cancel properly
8a04072e SPIGOT-6583: Throwing eggs doesn't make sounds

Spigot Changes:
f773da84 Remove redundant patch
cd367234 Rebuild patches
2021-06-20 21:25:59 +02:00

63 lines
3.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 23 May 2020 17:03:41 -0400
Subject: [PATCH] Optimize sending packets to nearby locations (sounds/effects)
Instead of using the entire world or player list, use the distance
maps to only iterate players who are even seeing the chunk the packet
is originating from.
This will drastically cut down on packet sending cost for worlds with
lots of players in them.
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index 95f229dcb1b003215c602847a351b313fb0980ba..67c5d0a53f50896daa6bba3ac2816cfc15b0af75 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -1135,16 +1135,40 @@ public abstract class PlayerList {
}
public void broadcast(@Nullable net.minecraft.world.entity.player.Player player, double x, double y, double z, double distance, ResourceKey<Level> worldKey, Packet<?> packet) {
- for (int i = 0; i < this.players.size(); ++i) {
- ServerPlayer entityplayer = (ServerPlayer) this.players.get(i);
+ ServerLevel world = null;
+ if (player != null && player.level instanceof ServerLevel) {
+ world = (ServerLevel) player.level;
+ }
- // CraftBukkit start - Test if player receiving packet can see the source of the packet
- if (player != null && player instanceof ServerPlayer && !entityplayer.getBukkitEntity().canSee(((ServerPlayer) player).getBukkitEntity())) {
- continue;
+ // Paper start
+ if (world == null) {
+ world = server.getLevel(worldKey);
+ }
+ net.minecraft.server.level.ChunkMap chunkMap = world != null ? world.getChunkSource().chunkMap : null;
+ Object[] backingSet;
+ if (chunkMap == null) {
+ // Really shouldn't happen...
+ backingSet = world != null ? world.players.toArray() : players.toArray();
+ } else {
+ com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<ServerPlayer> nearbyPlayers = chunkMap.playerViewDistanceBroadcastMap.getObjectsInRange(MCUtil.fastFloor(x) >> 4, MCUtil.fastFloor(z) >> 4);
+ if (nearbyPlayers == null) {
+ return;
}
+ backingSet = nearbyPlayers.getBackingSet();
+ }
+
+ for (Object object : backingSet) {
+ if (!(object instanceof ServerPlayer)) continue;
+ ServerPlayer entityplayer = (ServerPlayer) object;
+ // Paper end
+
+ // CraftBukkit start - Test if player receiving packet can see the source of the packet
+ //if (entityhuman != null && entityhuman instanceof EntityPlayer && !entityplayer.getBukkitEntity().canSee(((EntityPlayer) entityhuman).getBukkitEntity())) { // Paper
+ //continue; // Paper
+ //} // Paper
// CraftBukkit end
- if (entityplayer != player && entityplayer.level.dimension() == worldKey) {
+ if (entityplayer != player && entityplayer.level.dimension() == worldKey && (!(player instanceof ServerPlayer) || entityplayer.getBukkitEntity().canSee(((ServerPlayer) player).getBukkitEntity()))) { // Paper
double d4 = x - entityplayer.getX();
double d5 = y - entityplayer.getY();
double d6 = z - entityplayer.getZ();