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/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index dda31b5eea92ce3de9de0e4054ee9c7f6df631e4..dd3868045923eed8c6eaf87a57d9bf7dcd466433 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -72,6 +72,7 @@ import net.minecraft.world.level.lighting.LevelLightEngine;
 import net.minecraft.world.level.material.FluidState;
 import net.minecraft.world.level.material.Fluids;
 import net.minecraft.world.level.redstone.CollectingNeighborUpdater;
+import net.minecraft.world.level.redstone.InstantNeighborUpdater;
 import net.minecraft.world.level.redstone.NeighborUpdater;
 import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
 import net.minecraft.world.level.storage.LevelData;
@@ -317,7 +318,13 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
         this.thread = Thread.currentThread();
         this.biomeManager = new BiomeManager(this, i);
         this.isDebug = flag1;
-        this.neighborUpdater = new CollectingNeighborUpdater(this, j);
+        // Leaves start - instantBlockUpdaterReintroduced
+        if (top.leavesmc.leaves.LeavesConfig.instantBlockUpdaterReintroduced) {
+            this.neighborUpdater = new InstantNeighborUpdater(this);
+        } else {
+            this.neighborUpdater = new CollectingNeighborUpdater(this, j);
+        }
+        // Leaves end - instantBlockUpdaterReintroduced
         // CraftBukkit start
         this.getWorldBorder().world = (ServerLevel) this;
         // From PlayerList.setPlayerFileData
diff --git a/src/main/java/top/leavesmc/leaves/LeavesConfig.java b/src/main/java/top/leavesmc/leaves/LeavesConfig.java
index 25a86927e6616a9b2105c06d789bc74c7efa6e60..3dc43c3e292724d199b973273006350a594e754e 100644
--- a/src/main/java/top/leavesmc/leaves/LeavesConfig.java
+++ b/src/main/java/top/leavesmc/leaves/LeavesConfig.java
@@ -404,6 +404,15 @@ public final class LeavesConfig {
         bborProtocol = getBoolean("settings.protocol.bbor-protocol", bborProtocol);
     }
 
+    public static boolean instantBlockUpdaterReintroduced = false;
+    private static boolean instantBlockUpdaterReintroducedLock = false;
+    private static void instantBlockUpdaterReintroduced() {
+        if (!instantBlockUpdaterReintroducedLock) {
+            instantBlockUpdaterReintroduced = getBoolean("settings.modify.instant-block-updater-reintroduced", instantBlockUpdaterReintroduced);
+            instantBlockUpdaterReintroducedLock = true;
+        }
+    }
+
     public static final class WorldConfig {
 
         public final String worldName;