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path: root/patches/server/0836-Add-exploded-block-state-to-BlockExplodeEvent-and-En.patch
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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 and
 EntityDamageByBlockEvent


diff --git a/src/main/java/net/minecraft/world/damagesource/DamageSource.java b/src/main/java/net/minecraft/world/damagesource/DamageSource.java
index 8187feffe52efa5c887f1910e581a37c6e439401..1561b85a45f52a8162f43553f8485bfe084b8f1f 100644
--- a/src/main/java/net/minecraft/world/damagesource/DamageSource.java
+++ b/src/main/java/net/minecraft/world/damagesource/DamageSource.java
@@ -20,6 +20,7 @@ public class DamageSource {
     private final Entity directEntity;
     @Nullable
     private final Vec3 damageSourcePosition;
+    public org.bukkit.block.BlockState explodedBlockState; // Paper - add exploded state
     // CraftBukkit start
     @Nullable
     private org.bukkit.block.Block directBlock; // The block that caused the damage. damageSourcePosition is not used for all block damages
@@ -88,6 +89,7 @@ public class DamageSource {
 
     private DamageSource cloneInstance() {
         DamageSource damageSource = new DamageSource(this.type, this.directEntity, this.causingEntity, this.damageSourcePosition);
+        damageSource.explodedBlockState = this.explodedBlockState; // Paper - Include explodedBlockState when clone this instance of DamageSource
         damageSource.directBlock = this.getDirectBlock();
         damageSource.withSweep = this.isSweep();
         damageSource.poison = this.isPoison();
diff --git a/src/main/java/net/minecraft/world/damagesource/DamageSources.java b/src/main/java/net/minecraft/world/damagesource/DamageSources.java
index 8c0653012192144cd11c802d1ad9bf7e42e94f59..a47473c9875c70c52b9a61e0156e55961f34c694 100644
--- a/src/main/java/net/minecraft/world/damagesource/DamageSources.java
+++ b/src/main/java/net/minecraft/world/damagesource/DamageSources.java
@@ -257,8 +257,17 @@ public class DamageSources {
         return this.source(DamageTypes.SONIC_BOOM, attacker);
     }
 
+    @Deprecated @io.papermc.paper.annotation.DoNotUse // Paper - add exploded state
     public DamageSource badRespawnPointExplosion(Vec3 position) {
-        return new DamageSource(this.damageTypes.getHolderOrThrow(DamageTypes.BAD_RESPAWN_POINT), position);
+        // Paper start - add exploded state
+        return this.badRespawnPointExplosion(position, null);
+    }
+
+    public DamageSource badRespawnPointExplosion(Vec3 position, @Nullable org.bukkit.block.BlockState explodedBlockState) {
+        DamageSource source = new DamageSource(this.damageTypes.getHolderOrThrow(DamageTypes.BAD_RESPAWN_POINT), position);
+        source.explodedBlockState = explodedBlockState;
+        return source;
+        // Paper end - add exploded state
     }
 
     public DamageSource outOfBorder() {
diff --git a/src/main/java/net/minecraft/world/level/Explosion.java b/src/main/java/net/minecraft/world/level/Explosion.java
index e13450b3422309aad5ea50902d87c59816d0a105..27c0f5d623ecf7ea09f51105938a5f254983b6e1 100644
--- a/src/main/java/net/minecraft/world/level/Explosion.java
+++ b/src/main/java/net/minecraft/world/level/Explosion.java
@@ -383,7 +383,7 @@ public class Explosion {
                 bukkitBlocks = event.blockList();
                 this.yield = event.getYield();
             } else {
-                BlockExplodeEvent event = new BlockExplodeEvent(location.getBlock(), blockList, this.yield);
+                BlockExplodeEvent event = new BlockExplodeEvent(location.getBlock(), blockList, this.yield, this.damageSource.explodedBlockState); // Paper - add exploded state
                 this.level.getCraftServer().getPluginManager().callEvent(event);
                 this.wasCanceled = 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 c5d892950b4027cf9879eafc1c0f4e4c62fb4f51..c14cddd42c61512c312231b1e93ccc6efbde620c 100644
--- a/src/main/java/net/minecraft/world/level/block/BedBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/BedBlock.java
@@ -96,6 +96,7 @@ 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 - add exploded 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());
 
@@ -105,7 +106,7 @@ public class BedBlock extends HorizontalDirectionalBlock implements EntityBlock
 
                 Vec3 vec3d = pos.getCenter();
 
-                world.explode((Entity) null, world.damageSources().badRespawnPointExplosion(vec3d), (ExplosionDamageCalculator) null, vec3d, 5.0F, true, Level.ExplosionInteraction.BLOCK);
+                world.explode((Entity) null, world.damageSources().badRespawnPointExplosion(vec3d, explodedBlockState), (ExplosionDamageCalculator) null, vec3d, 5.0F, true, Level.ExplosionInteraction.BLOCK); // Paper - add exploded state
                 return InteractionResult.SUCCESS;
             } else if ((Boolean) state.getValue(BedBlock.OCCUPIED)) {
                 if (!this.kickVillagerOutOfBed(world, pos)) {
@@ -147,6 +148,7 @@ 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 - add exploded state
                 world.removeBlock(blockposition, false);
                 BlockPos blockposition1 = blockposition.relative(((Direction) iblockdata.getValue(BedBlock.FACING)).getOpposite());
 
@@ -156,7 +158,7 @@ public class BedBlock extends HorizontalDirectionalBlock implements EntityBlock
 
                 Vec3 vec3d = blockposition.getCenter();
 
-                world.explode((Entity) null, world.damageSources().badRespawnPointExplosion(vec3d), (ExplosionDamageCalculator) null, vec3d, 5.0F, true, Level.ExplosionInteraction.BLOCK);
+                world.explode((Entity) null, world.damageSources().badRespawnPointExplosion(vec3d, explodedBlockState), (ExplosionDamageCalculator) null, vec3d, 5.0F, true, Level.ExplosionInteraction.BLOCK); // Paper - add exploded 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 acd5ec218b8d4c096f44ae2eec1379eeaf30ddc5..088262f306755a9cb785c7a0cf0a9c66ed0965a8 100644
--- a/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java
@@ -131,6 +131,7 @@ 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 - add exploded state
         world.removeBlock(explodedPos, false);
         Stream<Direction> stream = Direction.Plane.HORIZONTAL.stream(); // CraftBukkit - decompile error
 
@@ -147,7 +148,7 @@ public class RespawnAnchorBlock extends Block {
         };
         Vec3 vec3d = explodedPos.getCenter();
 
-        world.explode((Entity) null, world.damageSources().badRespawnPointExplosion(vec3d), explosiondamagecalculator, vec3d, 5.0F, true, Level.ExplosionInteraction.BLOCK);
+        world.explode((Entity) null, world.damageSources().badRespawnPointExplosion(vec3d, explodedBlockState), explosiondamagecalculator, vec3d, 5.0F, true, Level.ExplosionInteraction.BLOCK); // Paper - add exploded 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 f81c0d07a5efc92942d8ab5c50a8260db033307d..8afc396c162d928902a9d9beb9f039b06630f755 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
@@ -276,6 +276,12 @@ public final class CraftBlockStates {
         BlockEntity tileEntity = (blockEntityTag == null) ? null : BlockEntity.loadStatic(blockPosition, blockData, blockEntityTag);
         return CraftBlockStates.getBlockState(null, blockPosition, blockData, tileEntity);
     }
+    // Paper start - add exploded state
+    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 - add exploded state
 
     // 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) {
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 46445366327eb7868ff844bfa2299a3f261aef42..cf8cd6959ba406f7249aeda4f508fd702cfe478b 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -1069,7 +1069,7 @@ public class CraftEventFactory {
         Entity damager = source.getCausingEntity();
         if (source.is(DamageTypeTags.IS_EXPLOSION)) {
             if (damager == null) {
-                return CraftEventFactory.callEntityDamageEvent(source.getDirectBlock(), entity, DamageCause.BLOCK_EXPLOSION, bukkitDamageSource, modifiers, modifierFunctions, cancelled);
+                return CraftEventFactory.callEntityDamageEvent(source.getDirectBlock(), entity, DamageCause.BLOCK_EXPLOSION, bukkitDamageSource, modifiers, modifierFunctions, cancelled, source.explodedBlockState); // Paper - Include BlockState for damage
             }
             DamageCause damageCause = (damager.getBukkitEntity() instanceof org.bukkit.entity.TNTPrimed) ? DamageCause.BLOCK_EXPLOSION : DamageCause.ENTITY_EXPLOSION;
             return CraftEventFactory.callEntityDamageEvent(damager, entity, damageCause, bukkitDamageSource, modifiers, modifierFunctions, cancelled, source.isCritical()); // Paper - add critical damage API
@@ -1120,7 +1120,7 @@ public class CraftEventFactory {
             } else {
                 throw new IllegalStateException(String.format("Unhandled damage of %s by %s from %s", entity, source.getDirectBlock(), source.getMsgId()));
             }
-            return CraftEventFactory.callEntityDamageEvent(source.getDirectBlock(), entity, cause, bukkitDamageSource, modifiers, modifierFunctions, cancelled);
+            return CraftEventFactory.callEntityDamageEvent(source.getDirectBlock(), entity, cause, bukkitDamageSource, modifiers, modifierFunctions, cancelled, source.explodedBlockState); // Paper - Include BlockState for damage
         }
 
         DamageCause cause;
@@ -1173,8 +1173,13 @@ public class CraftEventFactory {
         return CraftEventFactory.callEntityDamageEvent(event, damagee, cancelled);
     }
 
-    private static EntityDamageEvent callEntityDamageEvent(Block damager, Entity damagee, DamageCause cause, org.bukkit.damage.DamageSource bukkitDamageSource, Map<DamageModifier, Double> modifiers, Map<DamageModifier, Function<? super Double, Double>> modifierFunctions, boolean cancelled) {
-        EntityDamageByBlockEvent event = new EntityDamageByBlockEvent(damager, damagee.getBukkitEntity(), cause, bukkitDamageSource, modifiers, modifierFunctions);
+    // Paper start
+    private static EntityDamageEvent callEntityDamageEvent(Block damager, Entity damagee, DamageCause cause, org.bukkit.damage.DamageSource bukkitDamageSource, Map<DamageModifier, Double> modifiers, Map<DamageModifier, Function<? super Double, Double>> modifierFunctions, boolean cancelled) { // Paper
+        return callEntityDamageEvent(damager, damagee, cause, bukkitDamageSource, modifiers, modifierFunctions, cancelled, null);
+    }
+    private static EntityDamageEvent callEntityDamageEvent(Block damager, Entity damagee, DamageCause cause, org.bukkit.damage.DamageSource bukkitDamageSource, Map<DamageModifier, Double> modifiers, Map<DamageModifier, Function<? super Double, Double>> modifierFunctions, boolean cancelled, @Nullable org.bukkit.block.BlockState explodedBlockState) {
+        EntityDamageByBlockEvent event = new EntityDamageByBlockEvent(damager, damagee.getBukkitEntity(), cause, bukkitDamageSource, modifiers, modifierFunctions, explodedBlockState);
+        // Paper end
         return CraftEventFactory.callEntityDamageEvent(event, damagee, cancelled);
     }