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path: root/patches/server/0815-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 ec52c7a75d9988475fbb4fe12ef7f4489ef3d894..a78fd4f9ce97ebece45979908382de8f5fc14c1b 100644
--- a/src/main/java/net/minecraft/world/damagesource/DamageSource.java
+++ b/src/main/java/net/minecraft/world/damagesource/DamageSource.java
@@ -21,6 +21,7 @@ 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
@@ -94,6 +95,7 @@ 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 2f5591aa232b834bb9b69a2a349ce93d1a9c63fa..8ba60de95845f4d56f299c5f1b2b5163461ba38d 100644
--- a/src/main/java/net/minecraft/world/damagesource/DamageSources.java
+++ b/src/main/java/net/minecraft/world/damagesource/DamageSources.java
@@ -265,8 +265,17 @@ 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 aa81144975fa66bcdb3d107e2a461b6d62d8e59e..fbd1f4f3a8c94a4842f91b7cc6c21f0cf7edd7ac 100644
--- a/src/main/java/net/minecraft/world/level/Explosion.java
+++ b/src/main/java/net/minecraft/world/level/Explosion.java
@@ -386,7 +386,7 @@ 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 03035ed3df2f32e14a8eb9bc3d536ef64b5d87ba..872bec4c366c86177334452315cc4a8097dae3c0 100644
--- a/src/main/java/net/minecraft/world/level/block/BedBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/BedBlock.java
@@ -95,6 +95,7 @@ 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());
 
@@ -104,7 +105,7 @@ 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)) {
@@ -146,6 +147,7 @@ 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());
 
@@ -155,7 +157,7 @@ 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 a4a90df0b500fb440226b07462faaa87594b12a5..c389e2f891655bd8c9f307057dc1ad62dfcbc79e 100644
--- a/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/RespawnAnchorBlock.java
@@ -133,6 +133,7 @@ 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
 
@@ -149,7 +150,7 @@ 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 411c2de93c71e480f95229c882cdf43b8801edc8..489c17d002a5c3580637fda1c51f1bd63814bfa0 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
@@ -291,6 +291,12 @@ public final class CraftBlockStates {
         BlockEntity tileEntity = (blockEntityTag == null) ? null : BlockEntity.loadStatic(blockPosition, blockData, blockEntityTag, registry);
         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 c52cb55cd1da988ec646e4e1484ec1a72513291d..a226b7cdc9c63ef09d7d48269c287af1ab6dbdc4 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -1070,7 +1070,7 @@ public class CraftEventFactory {
         Entity damager = (bukkitDamageSource.isIndirect() && source.getDirectEntity() != null) ? source.getDirectEntity() : 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
@@ -1117,7 +1117,7 @@ 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;
@@ -1170,8 +1170,13 @@ 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);
     }