Paper/patches/server/0835-Fire-CauldronLevelChange-on-initial-fill.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
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