Paper/patches/server/0889-Call-BlockRedstoneEvents-for-lecterns.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Warrior <50800980+Warriorrrr@users.noreply.github.com>
Date: Wed, 13 Sep 2023 05:46:10 +0200
Subject: [PATCH] Call BlockRedstoneEvents for lecterns


diff --git a/src/main/java/net/minecraft/world/level/block/LecternBlock.java b/src/main/java/net/minecraft/world/level/block/LecternBlock.java
index 5ff1e755301336a4e6ec6757510d0c595eacd7a6..f420989056c5c86c94333361f1733fd4b7488283 100644
--- a/src/main/java/net/minecraft/world/level/block/LecternBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/LecternBlock.java
@@ -179,6 +179,16 @@ public class LecternBlock extends BaseEntityBlock {
     }
 
     private static void changePowered(Level world, BlockPos pos, BlockState state, boolean powered) {
+        // Paper start - call BlockRedstoneEvents for lecterns
+        final int currentRedstoneLevel = state.getValue(LecternBlock.POWERED) ? 15 : 0, targetRedstoneLevel = powered ? 15 : 0;
+        if (currentRedstoneLevel != targetRedstoneLevel) {
+            final org.bukkit.event.block.BlockRedstoneEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callRedstoneChange(world, pos, currentRedstoneLevel, targetRedstoneLevel);
+
+            if (event.getNewCurrent() != targetRedstoneLevel) {
+                return;
+            }
+        }
+        // Paper end - call BlockRedstoneEvents for lecterns
         world.setBlock(pos, (BlockState) state.setValue(LecternBlock.POWERED, powered), 3);
         LecternBlock.updateBelow(world, pos, state);
     }