Paper/patches/server/0946-Add-exploded-block-state-to-BlockExplodeEvent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Fri, 22 Oct 2021 16:25:07 -0700
Subject: [PATCH] Add exploded block state to BlockExplodeEvent


diff --git a/src/main/java/net/minecraft/world/damagesource/DamageSource.java b/src/main/java/net/minecraft/world/damagesource/DamageSource.java
index 8795c94e6b6474addddbb0b337a962e8fac46b2b..2848cb7c76e94d8349f042dc92daf01322a6ce5a 100644
--- a/src/main/java/net/minecraft/world/damagesource/DamageSource.java
+++ b/src/main/java/net/minecraft/world/damagesource/DamageSource.java
@@ -74,6 +74,7 @@ public class DamageSource {
         return this;
     }
     // Paper end
+    public @Nullable org.bukkit.block.BlockState explodedBlockState; // Paper - add exploded state
 
     public static DamageSource fallingBlock(Entity attacker) {
         return (new EntityDamageSource("fallingBlock", attacker)).damageHelmet();
@@ -147,8 +148,16 @@ public class DamageSource {
         return (new EntityDamageSource("sonic_boom", attacker)).bypassArmor().bypassEnchantments().setMagic();
     }
 
+    @Deprecated @io.papermc.paper.annotation.DoNotUse // Paper
     public static DamageSource badRespawnPointExplosion(Vec3 pos) {
-        return new BadRespawnPointDamage(pos);
+        // Paper start
+        return badRespawnPointExplosion(pos, null);
+    }
+    public static DamageSource badRespawnPointExplosion(Vec3 pos, @Nullable org.bukkit.block.BlockState explodedBlockState) {
+        DamageSource source = new BadRespawnPointDamage(pos);
+        source.explodedBlockState = explodedBlockState;
+        return source;
+        // Paper end
     }
 
     public String toString() {
diff --git a/src/main/java/net/minecraft/world/level/Explosion.java b/src/main/java/net/minecraft/world/level/Explosion.java
index ab8467a64202ccafa8188641eb9e3a5941331812..a213f4098859858a73ddd601bbe8c7511972e0d5 100644
--- a/src/main/java/net/minecraft/world/level/Explosion.java
+++ b/src/main/java/net/minecraft/world/level/Explosion.java
@@ -331,7 +331,7 @@ public class Explosion {
                 bukkitBlocks = event.blockList();
                 yield = event.getYield();
             } else {
-                BlockExplodeEvent event = new BlockExplodeEvent(location.getBlock(), blockList, this.blockInteraction == Explosion.BlockInteraction.DESTROY_WITH_DECAY ? 1.0F / this.radius : 1.0F); // Paper - fix explosion yield with new gamerules
+                BlockExplodeEvent event = new BlockExplodeEvent(location.getBlock(), blockList, this.blockInteraction == Explosion.BlockInteraction.DESTROY_WITH_DECAY ? 1.0F / this.radius : 1.0F, this.damageSource.explodedBlockState); // Paper - fix explosion yield with new gamerules & exploded block state
                 this.level.getCraftServer().getPluginManager().callEvent(event);
                 cancelled = event.isCancelled();
                 bukkitBlocks = event.blockList();
diff --git a/src/main/java/net/minecraft/world/level/block/BedBlock.java b/src/main/java/net/minecraft/world/level/block/BedBlock.java
index f1a7c5202d4efbfaf5d88609d243f25f6817ecbe..64e68bf6decc765274caaabfd34a5b2d7d82434c 100644
--- a/src/main/java/net/minecraft/world/level/block/BedBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/BedBlock.java
@@ -88,6 +88,7 @@ public class BedBlock extends HorizontalDirectionalBlock implements EntityBlock
 
             // CraftBukkit - moved world and biome check into EntityHuman
             if (false && !BedBlock.canSetSpawn(world)) {
+                final org.bukkit.block.BlockState explodedBlockState = org.bukkit.craftbukkit.block.CraftBlockStates.getUnplacedBlockState(world, pos, state); // Paper - exploded block state (this won't be called due to the false, but it's good for reference)
                 world.removeBlock(pos, false);
                 BlockPos blockposition1 = pos.relative(((Direction) state.getValue(BedBlock.FACING)).getOpposite());
 
@@ -97,7 +98,7 @@ public class BedBlock extends HorizontalDirectionalBlock implements EntityBlock
 
                 Vec3 vec3d = pos.getCenter();
 
-                world.explode((Entity) null, DamageSource.badRespawnPointExplosion(vec3d), (ExplosionDamageCalculator) null, vec3d, 5.0F, true, Level.ExplosionInteraction.BLOCK);
+                world.explode((Entity) null, DamageSource.badRespawnPointExplosion(vec3d, explodedBlockState), (ExplosionDamageCalculator) null, vec3d, 5.0F, true, Level.ExplosionInteraction.BLOCK); // Paper - exploded block state
                 return InteractionResult.SUCCESS;
             } else if ((Boolean) state.getValue(BedBlock.OCCUPIED)) {
                 if (!this.kickVillagerOutOfBed(world, pos)) {
@@ -139,6 +140,7 @@ public class BedBlock extends HorizontalDirectionalBlock implements EntityBlock
     private InteractionResult explodeBed(BlockState iblockdata, Level world, BlockPos blockposition) {
         {
             {
+                final org.bukkit.block.BlockState explodedBlockState = org.bukkit.craftbukkit.block.CraftBlockStates.getUnplacedBlockState(world, blockposition, iblockdata); // Paper - exploded block state
                 world.removeBlock(blockposition, false);
                 BlockPos blockposition1 = blockposition.relative(((Direction) iblockdata.getValue(BedBlock.FACING)).getOpposite());
 
@@ -148,7 +150,7 @@ public class BedBlock extends HorizontalDirectionalBlock implements EntityBlock
 
                 Vec3 vec3d = blockposition.getCenter();
 
-                world.explode((Entity) null, DamageSource.badRespawnPointExplosion(vec3d), (ExplosionDamageCalculator) null, vec3d, 5.0F, true, Level.ExplosionInteraction.BLOCK);
+                world.explode((Entity) null, DamageSource.badRespawnPointExplosion(vec3d, explodedBlockState), (ExplosionDamageCalculator) null, vec3d, 5.0F, true, Level.ExplosionInteraction.BLOCK); // Paper - exploded block state
                 return InteractionResult.SUCCESS;
             }
         }
diff --git a/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java b/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java
index 53b35f003034e7f4c9dd8ccfaf77389163009453..1b7140ffab0492ab130743a2d158b30efb2cfece 100644
--- a/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java
@@ -113,6 +113,7 @@ public class RespawnAnchorBlock extends Block {
     }
 
     private void explode(BlockState state, Level world, final BlockPos explodedPos) {
+        final org.bukkit.block.BlockState explodedBlockState = org.bukkit.craftbukkit.block.CraftBlockStates.getBlockState(explodedPos, state, null); // Paper - exploded block state
         world.removeBlock(explodedPos, false);
         boolean bl = Direction.Plane.HORIZONTAL.stream().map(explodedPos::relative).anyMatch((pos) -> {
             return isWaterThatWouldFlow(pos, world);
@@ -125,7 +126,7 @@ public class RespawnAnchorBlock extends Block {
             }
         };
         Vec3 vec3 = explodedPos.getCenter();
-        world.explode((Entity)null, DamageSource.badRespawnPointExplosion(vec3), explosionDamageCalculator, vec3, 5.0F, true, Level.ExplosionInteraction.BLOCK);
+        world.explode((Entity)null, DamageSource.badRespawnPointExplosion(vec3, explodedBlockState), explosionDamageCalculator, vec3, 5.0F, true, Level.ExplosionInteraction.BLOCK); // Paper - exploded block state
     }
 
     public static boolean canSetSpawn(Level world) {
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
index d3f66bc8c9fa18322bd025fac2793456a5200717..4d6f2b9b063b4b5accfe9fe1e6c230f114451d23 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
@@ -267,6 +267,12 @@ public final class CraftBlockStates {
         BlockEntity tileEntity = (blockEntityTag == null) ? null : BlockEntity.loadStatic(blockPosition, blockData, blockEntityTag);
         return CraftBlockStates.getBlockState(null, blockPosition, blockData, tileEntity);
     }
+    // Paper start
+    public static BlockState getUnplacedBlockState(net.minecraft.world.level.BlockGetter levelAccessor, BlockPos blockPos, net.minecraft.world.level.block.state.BlockState blockData) {
+        BlockEntity tileEntity = levelAccessor.getBlockEntity(blockPos);
+        return CraftBlockStates.getBlockState(null, blockPos, blockData, tileEntity);
+    }
+    // Paper end
 
     // See BlockStateFactory#createBlockState(World, BlockPosition, IBlockData, TileEntity)
     private static CraftBlockState getBlockState(World world, BlockPos blockPosition, net.minecraft.world.level.block.state.BlockState blockData, BlockEntity tileEntity) {