PaperMC/patches/server/0772-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 68978e1629381ada161225c53a236a54deae6481..4a1f2d326c4ece9da717a50b802af86fd9338a0b 100644
--- a/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/FrogspawnBlock.java
@@ -92,6 +92,11 @@ 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((Player)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 f660e58badfcc2a90e6dd618428a21bf5ad34969..13ee09f93ec325e416a2b29e3608e870e7f06aed 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 615ee22b4948d6a4869dc8b2111f48056969dd79..8782b05575e4a8d5e5c667c43808442b81c13f6b 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((Player)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()) {
+                rescheduleTick(world, pos);
+                return;
+            }
+            // Paper end - Call BlockFadeEvent
             world.playSound((Player)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);