Paper/patches/server/0870-Send-block-entities-after-destroy-prediction.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Sat, 25 Jun 2022 19:45:20 -0400
Subject: [PATCH] Send block entities after destroy prediction
Minecraft's prediction system does not handle block entities, so if we are manually sending block entities during
block breaking we need to set it after the prediction is finished. This fixes block entities not showing when cancelling the BlockBreakEvent.
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
2022-12-07 22:57:15 +01:00
index 796d17f51496974cfdfed2593753b8c09b5c81c1..13031576c20bda3bb12c926f6cd938fa5fb105f2 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
@@ -62,6 +62,8 @@ public class ServerPlayerGameMode {
private BlockPos delayedDestroyPos;
private int delayedTickStart;
private int lastSentState;
+ public boolean captureSentBlockEntities = false; // Paper
+ public boolean capturedBlockEntity = false; // Paper
public ServerPlayerGameMode(ServerPlayer player) {
this.gameModeForPlayer = GameType.DEFAULT_MODE;
@@ -187,10 +189,7 @@ public class ServerPlayerGameMode {
this.player.connection.send(new ClientboundBlockUpdatePacket(pos, this.level.getBlockState(pos)));
this.debugLogging(pos, false, sequence, "may not interact");
// Update any tile entity data for this block
- BlockEntity tileentity = this.level.getBlockEntity(pos);
- if (tileentity != null) {
- this.player.connection.send(tileentity.getUpdatePacket());
- }
+ capturedBlockEntity = true; // Paper - send block entity after predicting
// CraftBukkit end
return;
}
@@ -206,10 +205,7 @@ public class ServerPlayerGameMode {
// Paper end
this.player.connection.send(new ClientboundBlockUpdatePacket(this.level, pos));
// Update any tile entity data for this block
- BlockEntity tileentity = this.level.getBlockEntity(pos);
- if (tileentity != null) {
- this.player.connection.send(tileentity.getUpdatePacket());
- }
+ capturedBlockEntity = true; // Paper - send block entity after predicting
return;
}
// CraftBukkit end
@@ -385,10 +381,12 @@ public class ServerPlayerGameMode {
}
// Update any tile entity data for this block
+ if (!captureSentBlockEntities) { // Paper - Toggle this location for capturing as this is used for api
BlockEntity tileentity = this.level.getBlockEntity(pos);
if (tileentity != null) {
this.player.connection.send(tileentity.getUpdatePacket());
}
+ } else {capturedBlockEntity = true;} // Paper end
return false;
}
}
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index c1041c3832c73728cbb146815ca3c03b3ba41dc4..7183db74a3ebd7d278b7bf65de49dd1cde11611f 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -1863,8 +1863,28 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
return;
}
// Paper end - Don't allow digging in unloaded chunks
+ // Paper start - send block entities after prediction
+ this.player.gameMode.capturedBlockEntity = false;
+ this.player.gameMode.captureSentBlockEntities = true;
+ // Paper end - send block entities after prediction
this.player.gameMode.handleBlockBreakAction(blockposition, packetplayinblockdig_enumplayerdigtype, packet.getDirection(), this.player.level.getMaxBuildHeight(), packet.getSequence());
this.player.connection.ackBlockChangesUpTo(packet.getSequence());
+ // Paper start - send block entities after prediction
+ this.player.gameMode.captureSentBlockEntities = false;
+ // If a block entity was modified speedup the block change ack to avoid the block entity
+ // being overriden.
+ if (this.player.gameMode.capturedBlockEntity) {
+ // manually tick
+ this.send(new ClientboundBlockChangedAckPacket(this.ackBlockChangesUpTo));
+ this.player.connection.ackBlockChangesUpTo = -1;
+
+ this.player.gameMode.capturedBlockEntity = false;
+ BlockEntity tileentity = this.player.level.getBlockEntity(blockposition);
+ if (tileentity != null) {
+ this.player.connection.send(tileentity.getUpdatePacket());
+ }
+ }
+ // Paper end - send block entities after prediction
return;
default:
throw new IllegalArgumentException("Invalid player action");