From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Eearslya Sleiarion <eearslya@gmail.com>
Date: Sun, 23 Aug 2020 13:04:02 +0200
Subject: [PATCH] Add BellRingEvent

Add a new event, BellRingEvent, to trigger whenever a player rings a
village bell. Passes along the bell block and the player who rang it.

diff --git a/src/main/java/net/minecraft/world/level/block/BellBlock.java b/src/main/java/net/minecraft/world/level/block/BellBlock.java
index affae471e50354bfa9594e188e6dcea183b9b5c9..dc5dc9e533c71908b7a9a3cc9e614bd4a0dcde98 100644
--- a/src/main/java/net/minecraft/world/level/block/BellBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/BellBlock.java
@@ -1,8 +1,11 @@
 package net.minecraft.world.level.block;
 
+import io.papermc.paper.event.block.BellRingEvent;
+
 import javax.annotation.Nullable;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
+import net.minecraft.server.MCUtil;
 import net.minecraft.sounds.SoundEvents;
 import net.minecraft.sounds.SoundSource;
 import net.minecraft.stats.Stats;
@@ -89,7 +92,7 @@ public class BellBlock extends BaseEntityBlock {
         boolean flag1 = !flag || this.isProperHit(state, enumdirection, movingobjectpositionblock.getLocation().y - (double) blockposition.getY());
 
         if (flag1) {
-            boolean flag2 = this.attemptToRing(world, blockposition, enumdirection);
+            boolean flag2 = this.handleBellRing(world, blockposition, enumdirection, entityhuman); // Paper
 
             if (flag2 && entityhuman != null) {
                 entityhuman.awardStat(Stats.BELL_RING);
@@ -123,15 +126,21 @@ public class BellBlock extends BaseEntityBlock {
     }
 
     public boolean attemptToRing(Level world, BlockPos pos, @Nullable Direction enumdirection) {
-        BlockEntity tileentity = world.getBlockEntity(pos);
+        // Paper start - add ringer param
+        return this.handleBellRing(world, pos, enumdirection, null);
+    }
+    public boolean handleBellRing(Level world, BlockPos blockposition, @Nullable Direction enumdirection, @Nullable Entity ringer) {
+        // Paper end
+        BlockEntity tileentity = world.getBlockEntity(blockposition);
 
         if (!world.isClientSide && tileentity instanceof BellBlockEntity) {
             if (enumdirection == null) {
-                enumdirection = (Direction) world.getBlockState(pos).getValue(BellBlock.FACING);
+                enumdirection = (Direction) world.getBlockState(blockposition).getValue(BellBlock.FACING);
             }
 
+            if (!new BellRingEvent(world.getWorld().getBlockAt(MCUtil.toLocation(world, blockposition)), ringer == null ? null : ringer.getBukkitEntity()).callEvent()) return false; // Paper - BellRingEvent
             ((BellBlockEntity) tileentity).onHit(enumdirection);
-            world.playSound((Player) null, pos, SoundEvents.BELL_BLOCK, SoundSource.BLOCKS, 2.0F, 1.0F);
+            world.playSound((Player) null, blockposition, SoundEvents.BELL_BLOCK, SoundSource.BLOCKS, 2.0F, 1.0F);
             return true;
         } else {
             return false;