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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 block 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 <Spottedleaf@users.noreply.github.com>
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
index 74b5cec09d953a247bc5aba3c4232a4c28ea1046..998deae645b4497c3285bfba3260c636439f9ecf 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
@@ -24,6 +24,14 @@ public class ClientboundLevelChunkPacketData {
private final CompoundTag heightmaps;
private final byte[] buffer;
private final List<ClientboundLevelChunkPacketData.BlockEntityInfo> blockEntitiesData;
+ // Paper start - Handle oversized block entities in chunks
+ private final java.util.List<net.minecraft.network.protocol.Packet<?>> extraPackets = new java.util.ArrayList<>();
+ private static final int TE_LIMIT = Integer.getInteger("Paper.excessiveTELimit", 750);
+
+ public List<net.minecraft.network.protocol.Packet<?>> getExtraPackets() {
+ return this.extraPackets;
+ }
+ // Paper end - Handle oversized block entities in chunks
// Paper start - Anti-Xray - Add chunk packet info
@Deprecated @io.papermc.paper.annotation.DoNotUse public ClientboundLevelChunkPacketData(LevelChunk chunk) { this(chunk, null); }
@@ -47,8 +55,18 @@ public class ClientboundLevelChunkPacketData {
extractChunkData(new FriendlyByteBuf(this.getWriteBuffer()), chunk, chunkPacketInfo);
// Paper end
this.blockEntitiesData = Lists.newArrayList();
+ int totalTileEntities = 0; // Paper - Handle oversized block entities in chunks
for(Map.Entry<BlockPos, BlockEntity> entry2 : chunk.getBlockEntities().entrySet()) {
+ // Paper start - Handle oversized block entities in chunks
+ if (++totalTileEntities > TE_LIMIT) {
+ var packet = entry2.getValue().getUpdatePacket();
+ if (packet != null) {
+ this.extraPackets.add(packet);
+ continue;
+ }
+ }
+ // Paper end - Handle oversized block entities in chunks
this.blockEntitiesData.add(ClientboundLevelChunkPacketData.BlockEntityInfo.create(entry2.getValue()));
}
diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
index 6412dff5ed0505f62dd5b71ab9606257858a7317..fc230d835f9aa526a4b179d36d921f0fec348aa8 100644
--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
@@ -74,4 +74,11 @@ public class ClientboundLevelChunkWithLightPacket implements Packet<ClientGamePa
public ClientboundLightUpdatePacketData getLightData() {
return this.lightData;
}
+
+ // Paper start - Handle oversized block entities in chunks
+ @Override
+ public java.util.List<Packet<?>> getExtraPackets() {
+ return this.chunkData.getExtraPackets();
+ }
+ // Paper end - Handle oversized block entities in chunks
}
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