From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: violetc <58360096+s-yh-china@users.noreply.github.com>
Date: Tue, 29 Nov 2022 14:54:56 +0800
Subject: [PATCH] InstantBlockUpdater Reintroduced

This patch is Powered by Carpet-TIS-Addition(https://github.com/plusls/Carpet-TIS-Addition)

diff --git a/net/minecraft/server/level/ServerLevel.java b/net/minecraft/server/level/ServerLevel.java
index 145c8e1791638c78b81222181e9f3679a33795a9..015c49c8170ba8d73b2bc9386192681a8ececb3f 100644
--- a/net/minecraft/server/level/ServerLevel.java
+++ b/net/minecraft/server/level/ServerLevel.java
@@ -871,12 +871,14 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
         // Paper - rewrite chunk system
         profilerFiller.pop();
         profilerFiller.push("debugSynchronizers");
-        if (this.debugSynchronizers.hasAnySubscriberFor(DebugSubscriptions.NEIGHBOR_UPDATES)) {
-            this.neighborUpdater
-                .setDebugListener(blockPos -> this.debugSynchronizers.broadcastEventToTracking(blockPos, DebugSubscriptions.NEIGHBOR_UPDATES, blockPos));
-        } else {
-            this.neighborUpdater.setDebugListener(null);
-        }
+        if (this.neighborUpdater instanceof net.minecraft.world.level.redstone.CollectingNeighborUpdater cnu) { // Leaves start - instantBlockUpdaterReintroduced
+            if (this.debugSynchronizers.hasAnySubscriberFor(DebugSubscriptions.NEIGHBOR_UPDATES)) {
+                cnu.setDebugListener(blockPos -> this.debugSynchronizers.broadcastEventToTracking(blockPos, DebugSubscriptions.NEIGHBOR_UPDATES, blockPos));
+            } else {
+                cnu.setDebugListener(null);
+            }
+        } // Leaves end - instantBlockUpdaterReintroduced
+
 
         this.debugSynchronizers.tick(this.server.debugSubscribers());
         profilerFiller.pop();
diff --git a/net/minecraft/world/level/Level.java b/net/minecraft/world/level/Level.java
index 01e0dc28ef63456a45b800e72d76180b40811a72..feafaaeca7ffa6fda5af9897c448b61ee1760290 100644
--- a/net/minecraft/world/level/Level.java
+++ b/net/minecraft/world/level/Level.java
@@ -113,7 +113,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable, ca.spottedl
         .add(new ExplosionParticleInfo(ParticleTypes.SMOKE, 1.0F, 1.0F))
         .build();
     public final List<TickingBlockEntity> blockEntityTickers = Lists.newArrayList();
-    protected final CollectingNeighborUpdater neighborUpdater;
+    protected final net.minecraft.world.level.redstone.NeighborUpdater neighborUpdater; // Leaves - instantBlockUpdaterReintroduced
     private final List<TickingBlockEntity> pendingBlockEntityTickers = Lists.newArrayList();
     private boolean tickingBlockEntities;
     public final Thread thread;
@@ -863,7 +863,13 @@ public abstract class Level implements LevelAccessor, AutoCloseable, ca.spottedl
         this.thread = Thread.currentThread();
         this.biomeManager = new BiomeManager(this, biomeZoomSeed);
         this.isDebug = isDebug;
-        this.neighborUpdater = new CollectingNeighborUpdater(this, maxChainedNeighborUpdates);
+        // Leaves start - instantBlockUpdaterReintroduced
+        if (org.leavesmc.leaves.LeavesConfig.modify.oldMC.updater.instantBlockUpdaterReintroduced) {
+            this.neighborUpdater = new net.minecraft.world.level.redstone.InstantNeighborUpdater(this);
+        } else {
+            this.neighborUpdater = new CollectingNeighborUpdater(this, maxChainedNeighborUpdates);
+        }
+        // Leaves end - instantBlockUpdaterReintroduced
         this.registryAccess = registryAccess;
         this.palettedContainerFactory = PalettedContainerFactory.create(registryAccess);
         this.damageSources = new DamageSources(registryAccess);