papermc/patches/server/0311-Handle-Oversized-Tile-Entities-in-chunks.patch
MiniDigger 4104545b11 remove system property for book size limits
"It was from a different time before books were as jank as they are now. As time has gone on they've only proven to be worse and worse."
2021-06-17 21:12:40 +02:00

50 lines
2.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 6 May 2020 05:00:57 -0400
Subject: [PATCH] Handle Oversized Tile Entities in chunks
Splits out Extra Packets if too many TE's are encountered to prevent
creating too large of a packet to sed.
Co authored by Spottedleaf
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java
index 96626835fee3c0fdb452acacdc9f737ad90c08de..c28879f32b004f36ff746ea2274f91ddd9501e71 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacket.java
@@ -27,6 +27,15 @@ public class ClientboundLevelChunkPacket implements Packet<ClientGamePacketListe
private final int[] biomes;
private final byte[] buffer;
private final List<CompoundTag> blockEntitiesTags;
+ // Paper start
+ private final java.util.List<Packet> extraPackets = new java.util.ArrayList<>();
+ private static final int TE_LIMIT = Integer.getInteger("Paper.excessiveTELimit", 750);
+
+ @Override
+ public java.util.List<Packet> getExtraPackets() {
+ return extraPackets;
+ }
+ // Paper end
public ClientboundLevelChunkPacket(LevelChunk chunk) {
ChunkPos chunkPos = chunk.getPos();
@@ -44,9 +53,19 @@ public class ClientboundLevelChunkPacket implements Packet<ClientGamePacketListe
this.buffer = new byte[this.calculateChunkSize(chunk)];
this.availableSections = this.extractChunkData(new FriendlyByteBuf(this.getWriteBuffer()), chunk);
this.blockEntitiesTags = Lists.newArrayList();
+ int totalTileEntities = 0; // Paper
for(Entry<BlockPos, BlockEntity> entry2 : chunk.getBlockEntities().entrySet()) {
BlockEntity blockEntity = entry2.getValue();
+ // Paper start - improve oversized chunk data packet handling
+ if (++totalTileEntities > TE_LIMIT) {
+ ClientboundBlockEntityDataPacket updatePacket = blockEntity.getUpdatePacket();
+ if (updatePacket != null) {
+ this.extraPackets.add(updatePacket);
+ continue;
+ }
+ }
+ // Paper end
CompoundTag compoundTag = blockEntity.getUpdateTag();
if (blockEntity instanceof net.minecraft.world.level.block.entity.SkullBlockEntity) { net.minecraft.world.level.block.entity.SkullBlockEntity.sanitizeTileEntityUUID(compoundTag); } // Paper
this.blockEntitiesTags.add(compoundTag);