1 files changed, 83 insertions, 0 deletions
diff --git a/patches/server/0804-Fire-CauldronLevelChange-on-initial-fill.patch b/patches/server/0804-Fire-CauldronLevelChange-on-initial-fill.patch
new file mode 100644
index 0000000000..bcc871d7bc
--- /dev/null
+++ b/patches/server/0804-Fire-CauldronLevelChange-on-initial-fill.patch
@@ -0,0 +1,83 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+Date: Tue, 29 Mar 2022 13:46:23 -0700
+Subject: [PATCH] Fire CauldronLevelChange on initial fill
+
+Also don't fire level events or game events if stalactite
+drip is cancelled
+
+diff --git a/src/main/java/net/minecraft/world/level/block/CauldronBlock.java b/src/main/java/net/minecraft/world/level/block/CauldronBlock.java
+index 53089c3a36bf2c0ec1bc9b436884deff0c30f028..2f85b893dd0abc39fcedec65acc89e1567faf6f0 100644
+--- a/src/main/java/net/minecraft/world/level/block/CauldronBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/CauldronBlock.java
+@@ -36,10 +36,18 @@ public class CauldronBlock extends AbstractCauldronBlock {
+     public void handlePrecipitation(BlockState state, Level world, BlockPos pos, Biome.Precipitation precipitation) {
+         if (CauldronBlock.shouldHandlePrecipitation(world, precipitation)) {
+             if (precipitation == Biome.Precipitation.RAIN) {
+-                world.setBlockAndUpdate(pos, Blocks.WATER_CAULDRON.defaultBlockState());
++                // Paper start - call event for initial fill
++                if (!LayeredCauldronBlock.changeLevel(state, world, pos, Blocks.WATER_CAULDRON.defaultBlockState(), null, CauldronLevelChangeEvent.ChangeReason.NATURAL_FILL, false)) { // avoid duplicate game event
++                    return;
++                }
++                // Paper end
+                 world.gameEvent((Entity) null, GameEvent.BLOCK_CHANGE, pos);
+             } else if (precipitation == Biome.Precipitation.SNOW) {
+-                world.setBlockAndUpdate(pos, Blocks.POWDER_SNOW_CAULDRON.defaultBlockState());
++                // Paper start - call event for initial fill
++                if (!LayeredCauldronBlock.changeLevel(state, world, pos, Blocks.POWDER_SNOW_CAULDRON.defaultBlockState(), null, CauldronLevelChangeEvent.ChangeReason.NATURAL_FILL, false)) { // avoid duplicate game event
++                    return;
++                }
++                // Paper end
+                 world.gameEvent((Entity) null, GameEvent.BLOCK_CHANGE, pos);
+             }
+ 
+@@ -57,11 +65,19 @@ public class CauldronBlock extends AbstractCauldronBlock {
+ 
+         if (fluid == Fluids.WATER) {
+             iblockdata1 = Blocks.WATER_CAULDRON.defaultBlockState();
+-            LayeredCauldronBlock.changeLevel(state, world, pos, iblockdata1, null, CauldronLevelChangeEvent.ChangeReason.NATURAL_FILL); // CraftBukkit
++            // Paper start - don't send level event or game event if cancelled
++            if (!LayeredCauldronBlock.changeLevel(state, world, pos, iblockdata1, null, CauldronLevelChangeEvent.ChangeReason.NATURAL_FILL)) { // CraftBukkit
++                return;
++            }
++            // Paper end
+             world.levelEvent(1047, pos, 0);
+         } else if (fluid == Fluids.LAVA) {
+             iblockdata1 = Blocks.LAVA_CAULDRON.defaultBlockState();
+-            LayeredCauldronBlock.changeLevel(state, world, pos, iblockdata1, null, CauldronLevelChangeEvent.ChangeReason.NATURAL_FILL); // CraftBukkit
++            // Paper start - don't send level event or game event if cancelled
++            if (!LayeredCauldronBlock.changeLevel(state, world, pos, iblockdata1, null, CauldronLevelChangeEvent.ChangeReason.NATURAL_FILL)) { // CraftBukkit
++                return;
++            }
++            // Paper end
+             world.levelEvent(1046, pos, 0);
+         }
+ 
+diff --git a/src/main/java/net/minecraft/world/level/block/LayeredCauldronBlock.java b/src/main/java/net/minecraft/world/level/block/LayeredCauldronBlock.java
+index 24d2da792bc498adf4251555a538df4cafe2e827..14164aa59fa5e315788cd7a207228081a05fd18f 100644
+--- a/src/main/java/net/minecraft/world/level/block/LayeredCauldronBlock.java
++++ b/src/main/java/net/minecraft/world/level/block/LayeredCauldronBlock.java
+@@ -91,7 +91,13 @@ public class LayeredCauldronBlock extends AbstractCauldronBlock {
+     }
+ 
+     // CraftBukkit start
+-    public static boolean changeLevel(BlockState iblockdata, Level world, BlockPos blockposition, BlockState newBlock, Entity entity, CauldronLevelChangeEvent.ChangeReason reason) {
++    // Paper start
++    public static boolean changeLevel(BlockState iblockdata, Level world, BlockPos blockposition, BlockState newBlock, @javax.annotation.Nullable Entity entity, CauldronLevelChangeEvent.ChangeReason reason) { // Paper - entity is nullable
++        return changeLevel(iblockdata, world, blockposition, newBlock, entity, reason, true);
++    }
++
++    public static boolean changeLevel(BlockState iblockdata, Level world, BlockPos blockposition, BlockState newBlock, @javax.annotation.Nullable Entity entity, CauldronLevelChangeEvent.ChangeReason reason, boolean sendGameEvent) { // Paper - entity is nullable
++    // Paper end
+         CraftBlockState newState = CraftBlockStates.getBlockState(world, blockposition);
+         newState.setData(newBlock);
+ 
+@@ -104,7 +110,7 @@ public class LayeredCauldronBlock extends AbstractCauldronBlock {
+             return false;
+         }
+         newState.update(true);
+-        world.gameEvent(GameEvent.BLOCK_CHANGE, blockposition, GameEvent.Context.of(newBlock));
++        if (sendGameEvent) world.gameEvent(GameEvent.BLOCK_CHANGE, blockposition, GameEvent.Context.of(newBlock)); // Paper
+         return true;
+     }
+     // CraftBukkit end