From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Cryptite <cryptite@gmail.com>
Date: Sun, 26 Sep 2021 09:00:50 -0500
Subject: [PATCH] Add BlockDestroyedByNeighborEvent


diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index 71fca6c915f90a771e6139b985ebc51c7923778c..96a7ae08649294062f856c67e49a793feb63ca37 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -738,6 +738,17 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
         if (iblockdata.isAir()) {
             return false;
         } else {
+            // Paper start
+            PendingBlockEvent blockEvent = pendingPlayerBlockEvents.get(pos);
+            if (blockEvent != null && blockEvent.sourceBlock != null) {
+                io.papermc.paper.event.block.BlockDestroyedByNeighborEvent event =
+                    new io.papermc.paper.event.block.BlockDestroyedByNeighborEvent(org.bukkit.craftbukkit.block.CraftBlock.at(this, pos),
+                        (org.bukkit.entity.Player) blockEvent.player.getBukkitEntity(),
+                        org.bukkit.craftbukkit.block.CraftBlock.at(this, blockEvent.sourceBlock));
+                event.callEvent();
+            }
+            // Paper end
+
             FluidState fluid = this.getFluidState(pos);
             // Paper start - while the above setAir method is named same and looks very similar
             // they are NOT used with same intent and the above should not fire this event. The above method is more of a BlockSetToAirEvent,
diff --git a/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java b/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java
index b1b6072ffff0e1cc2e9e1a585ad882bc70697d92..f2eb493d99c2eb826d8b85adbc3dc6799c575f31 100644
--- a/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/DoublePlantBlock.java
@@ -106,8 +106,11 @@ public class DoublePlantBlock extends BushBlock {
 
             Level.PendingBlockEvent blockEvent = world.pendingPlayerBlockEvents.remove(pos);
             if (blockEvent != null) {
-                //Would fire a future BlockDestroyedByNeighborEvent here, but must have this conditional block
-                //because it's important to remove from pendingPlayerBlockEvents
+                io.papermc.paper.event.block.BlockDestroyedByNeighborEvent event =
+                    new io.papermc.paper.event.block.BlockDestroyedByNeighborEvent(org.bukkit.craftbukkit.block.CraftBlock.at(world, blockposition1),
+                        (org.bukkit.entity.Player) blockEvent.player.getBukkitEntity(),
+                        org.bukkit.craftbukkit.block.CraftBlock.at(world, pos));
+                if (!event.callEvent()) return;
             }
 
             if (iblockdata1.is(state.getBlock()) && iblockdata1.getValue(DoublePlantBlock.HALF) == DoubleBlockHalf.LOWER) {