Paper/patches/server/0721-Add-and-fix-missing-BlockFadeEvents.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Thu, 21 Jul 2022 12:07:54 -0400
Subject: [PATCH] Add and fix missing BlockFadeEvents

Beyond calling the BlockFadeEvent in more places, this patch also aims
to pass the proper replacement state to the event, specifically for
potentially waterlogged block states fading.

Co-authored-by: Lulu13022002 <41980282+Lulu13022002@users.noreply.github.com>

diff --git a/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java b/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java
index 34be6b349722240e99f91d28067578aa0b4bd1fe..4f53f25d7565eb930f6ae27ca24a6aa0cca571a2 100644
--- a/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java
@@ -102,6 +102,11 @@ public class FrogspawnBlock extends Block {
     }
 
     private void hatchFrogspawn(ServerLevel world, BlockPos pos, RandomSource random) {
+        // Paper start - Call BlockFadeEvent
+        if (org.bukkit.craftbukkit.event.CraftEventFactory.callBlockFadeEvent(world, pos, Blocks.AIR.defaultBlockState()).isCancelled()) {
+            return;
+        }
+        // Paper end - Call BlockFadeEvent
         this.destroyBlock(world, pos);
         world.playSound(null, pos, SoundEvents.FROGSPAWN_HATCH, SoundSource.BLOCKS, 1.0F, 1.0F);
         this.spawnTadpoles(world, pos, random);
diff --git a/src/main/java/net/minecraft/world/level/block/ScaffoldingBlock.java b/src/main/java/net/minecraft/world/level/block/ScaffoldingBlock.java
index fc49230d6b2c13b009724d28081f5e77537d5ab8..2d3f425778302490dd3654d487cfa3cfed6fb9e8 100644
--- a/src/main/java/net/minecraft/world/level/block/ScaffoldingBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/ScaffoldingBlock.java
@@ -103,7 +103,7 @@ public class ScaffoldingBlock extends Block implements SimpleWaterloggedBlock {
         int i = ScaffoldingBlock.getDistance(world, pos);
         BlockState iblockdata1 = (BlockState) ((BlockState) state.setValue(ScaffoldingBlock.DISTANCE, i)).setValue(ScaffoldingBlock.BOTTOM, this.isBottom(world, pos, i));
 
-        if ((Integer) iblockdata1.getValue(ScaffoldingBlock.DISTANCE) == 7 && !org.bukkit.craftbukkit.event.CraftEventFactory.callBlockFadeEvent(world, pos, Blocks.AIR.defaultBlockState()).isCancelled()) { // CraftBukkit - BlockFadeEvent
+        if ((Integer) iblockdata1.getValue(ScaffoldingBlock.DISTANCE) == 7 && !org.bukkit.craftbukkit.event.CraftEventFactory.callBlockFadeEvent(world, pos, iblockdata1.getFluidState().createLegacyBlock()).isCancelled()) { // CraftBukkit - BlockFadeEvent // Paper - fix wrong block state
             if ((Integer) state.getValue(ScaffoldingBlock.DISTANCE) == 7) {
                 FallingBlockEntity.fall(world, pos, iblockdata1);
             } else {
diff --git a/src/main/java/net/minecraft/world/level/block/SnifferEggBlock.java b/src/main/java/net/minecraft/world/level/block/SnifferEggBlock.java
index 4f8224841865f956aaa969ab7f543c80b3c24319..2df28caefff893f319924ae5fd376c8aeb0a2158 100644
--- a/src/main/java/net/minecraft/world/level/block/SnifferEggBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/SnifferEggBlock.java
@@ -61,12 +61,26 @@ public class SnifferEggBlock extends Block {
         return this.getHatchLevel(state) == 2;
     }
 
+    // Paper start - Call BlockFadeEvent
+    private void rescheduleTick(ServerLevel world, BlockPos pos) {
+        int baseDelay = hatchBoost(world, pos) ? BOOSTED_HATCH_TIME_TICKS : REGULAR_HATCH_TIME_TICKS;
+        world.scheduleTick(pos, this, (baseDelay / 3) + world.random.nextInt(RANDOM_HATCH_OFFSET_TICKS));
+        // reschedule to avoid being stuck here and behave like the other calls (see #onPlace)
+    }
+    // Paper end - Call BlockFadeEvent
+
     @Override
     public void tick(BlockState state, ServerLevel world, BlockPos pos, RandomSource random) {
         if (!this.isReadyToHatch(state)) {
             world.playSound(null, pos, SoundEvents.SNIFFER_EGG_CRACK, SoundSource.BLOCKS, 0.7F, 0.9F + random.nextFloat() * 0.2F);
             world.setBlock(pos, state.setValue(HATCH, Integer.valueOf(this.getHatchLevel(state) + 1)), 2);
         } else {
+            // Paper start - Call BlockFadeEvent
+            if (org.bukkit.craftbukkit.event.CraftEventFactory.callBlockFadeEvent(world, pos, state.getFluidState().createLegacyBlock()).isCancelled()) {
+                this.rescheduleTick(world, pos);
+                return;
+            }
+            // Paper end - Call BlockFadeEvent
             world.playSound(null, pos, SoundEvents.SNIFFER_EGG_HATCH, SoundSource.BLOCKS, 0.7F, 0.9F + random.nextFloat() * 0.2F);
             world.destroyBlock(pos, false);
             Sniffer sniffer = EntityType.SNIFFER.create(world, EntitySpawnReason.BREEDING);