mirror of
https://github.com/PaperMC/Paper.git
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928bcc8d3a
Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 09943450 Update SnakeYAML version 5515734f SPIGOT-7162: Incorrect description for Entity#getVehicle javadoc 6f82b381 PR-788: Add getHand() to all relevant events CraftBukkit Changes: aaf484f6f SPIGOT-7163: CraftMerchantRecipe doesn't copy demand and specialPrice from BukkitMerchantRecipe 5329dd6fd PR-1107: Add getHand() to all relevant events 93061706e SPIGOT-7045: Ocelots never spawn with babies with spawn reason OCELOT_BABY
170 lines
10 KiB
Diff
170 lines
10 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Wed, 13 May 2020 23:01:26 -0400
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Subject: [PATCH] Protect Bedrock and End Portal/Frames from being destroyed
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This fixes exploits that let players destroy bedrock by Pistons, explosions
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and Mushrooom/Tree generation.
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These blocks are designed to not be broken except by creative players/commands.
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So protect them from a multitude of methods of destroying them.
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A config is provided if you rather let players use these exploits, and let
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them destroy the worlds End Portals and get on top of the nether easy.
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diff --git a/src/main/java/net/minecraft/world/level/Explosion.java b/src/main/java/net/minecraft/world/level/Explosion.java
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index 38bb502e9f1272020a23a3ef8ebb0cb1a5a251ef..b18b0e1b5e059f08fd3117eaa0fb28a10fac6562 100644
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--- a/src/main/java/net/minecraft/world/level/Explosion.java
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+++ b/src/main/java/net/minecraft/world/level/Explosion.java
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@@ -172,6 +172,7 @@ public class Explosion {
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for (float f1 = 0.3F; f > 0.0F; f -= 0.22500001F) {
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BlockPos blockposition = new BlockPos(d4, d5, d6);
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BlockState iblockdata = this.level.getBlockState(blockposition);
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+ if (!iblockdata.isDestroyable()) continue; // Paper
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FluidState fluid = iblockdata.getFluidState(); // Paper
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if (!this.level.isInWorldBounds(blockposition)) {
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@@ -350,7 +351,7 @@ public class Explosion {
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BlockState iblockdata = this.level.getBlockState(blockposition);
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Block block = iblockdata.getBlock();
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- if (!iblockdata.isAir()) {
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+ if (!iblockdata.isAir() && iblockdata.isDestroyable()) { // Paper
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BlockPos blockposition1 = blockposition.immutable();
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this.level.getProfiler().push("explosion_blocks");
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diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
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index 426fe552d2444a4977a3e261d7e60fbda0893756..ea3b4c52769ff8112d865b226c8d3dcf48982787 100644
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--- a/src/main/java/net/minecraft/world/level/Level.java
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+++ b/src/main/java/net/minecraft/world/level/Level.java
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@@ -429,6 +429,10 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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public boolean setBlock(BlockPos pos, BlockState state, int flags, int maxUpdateDepth) {
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// CraftBukkit start - tree generation
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if (this.captureTreeGeneration) {
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+ // Paper start
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+ BlockState type = getBlockState(pos);
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+ if (!type.isDestroyable()) return false;
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+ // Paper end
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CraftBlockState blockstate = this.capturedBlockStates.get(pos);
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if (blockstate == null) {
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blockstate = CapturedBlockState.getTreeBlockState(this, pos, flags);
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diff --git a/src/main/java/net/minecraft/world/level/block/Block.java b/src/main/java/net/minecraft/world/level/block/Block.java
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index 77125720fcbeb7bfc180effb27cfb78c74832ce5..cb11cef117fc896ddcb40993ddb852a2e717c2ad 100644
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--- a/src/main/java/net/minecraft/world/level/block/Block.java
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+++ b/src/main/java/net/minecraft/world/level/block/Block.java
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@@ -92,6 +92,19 @@ public class Block extends BlockBehaviour implements ItemLike {
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protected final StateDefinition<Block, BlockState> stateDefinition;
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private BlockState defaultBlockState;
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// Paper start
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+ public final boolean isDestroyable() {
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+ return io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowPermanentBlockBreakExploits ||
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+ this != Blocks.BEDROCK &&
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+ this != Blocks.END_PORTAL_FRAME &&
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+ this != Blocks.END_PORTAL &&
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+ this != Blocks.END_GATEWAY &&
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+ this != Blocks.COMMAND_BLOCK &&
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+ this != Blocks.REPEATING_COMMAND_BLOCK &&
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+ this != Blocks.CHAIN_COMMAND_BLOCK &&
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+ this != Blocks.BARRIER &&
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+ this != Blocks.STRUCTURE_BLOCK &&
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+ this != Blocks.JIGSAW;
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+ }
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public co.aikar.timings.Timing timing;
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public co.aikar.timings.Timing getTiming() {
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if (timing == null) {
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diff --git a/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java b/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java
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index 76720517cd2d82065eb8430cf854b536295341db..29755807fdb6c30e31c0ec2bbf33bed9afd5d478 100644
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--- a/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java
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@@ -199,6 +199,12 @@ public class PistonBaseBlock extends DirectionalBlock {
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@Override
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public boolean triggerEvent(BlockState state, Level world, BlockPos pos, int type, int data) {
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Direction enumdirection = (Direction) state.getValue(PistonBaseBlock.FACING);
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+ // Paper start - prevent retracting when we're facing the wrong way (we were replaced before retraction could occur)
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+ Direction directionQueuedAs = Direction.from3DDataValue(data & 7); // Paper - copied from below
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+ if (!io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowPermanentBlockBreakExploits && enumdirection != directionQueuedAs) {
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+ return false;
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+ }
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+ // Paper end - prevent retracting when we're facing the wrong way
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if (!world.isClientSide) {
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boolean flag = this.getNeighborSignal(world, pos, enumdirection);
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@@ -231,7 +237,7 @@ public class PistonBaseBlock extends DirectionalBlock {
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BlockState iblockdata1 = (BlockState) ((BlockState) Blocks.MOVING_PISTON.defaultBlockState().setValue(MovingPistonBlock.FACING, enumdirection)).setValue(MovingPistonBlock.TYPE, this.isSticky ? PistonType.STICKY : PistonType.DEFAULT);
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world.setBlock(pos, iblockdata1, 20);
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- world.setBlockEntity(MovingPistonBlock.newMovingBlockEntity(pos, iblockdata1, (BlockState) this.defaultBlockState().setValue(PistonBaseBlock.FACING, Direction.from3DDataValue(data & 7)), enumdirection, false, true));
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+ world.setBlockEntity(MovingPistonBlock.newMovingBlockEntity(pos, iblockdata1, (BlockState) this.defaultBlockState().setValue(PistonBaseBlock.FACING, Direction.from3DDataValue(data & 7)), enumdirection, false, true)); // Paper - diff on change
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world.blockUpdated(pos, iblockdata1.getBlock());
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iblockdata1.updateNeighbourShapes(world, pos, 2);
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if (this.isSticky) {
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@@ -260,7 +266,14 @@ public class PistonBaseBlock extends DirectionalBlock {
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}
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}
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} else {
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- world.removeBlock(pos.relative(enumdirection), false);
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+ // Paper start - fix headless pistons breaking blocks
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+ BlockPos headPos = pos.relative(enumdirection);
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+ if (io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowPermanentBlockBreakExploits || world.getBlockState(headPos) == Blocks.PISTON_HEAD.defaultBlockState().setValue(FACING, enumdirection)) { // double check to make sure we're not a headless piston.
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+ world.removeBlock(headPos, false);
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+ } else {
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+ ((ServerLevel)world).getChunkSource().blockChanged(headPos); // ... fix client desync
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+ }
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+ // Paper end - fix headless pistons breaking blocks
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}
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world.playSound((Player) null, pos, SoundEvents.PISTON_CONTRACT, SoundSource.BLOCKS, 0.5F, world.random.nextFloat() * 0.15F + 0.6F);
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diff --git a/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java b/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
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index 61a792c5ccf3688d4f78c6e7461090f63a0cc26a..b2ab7749e3ddf124d5ef97271a76dc875a650771 100644
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--- a/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
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+++ b/src/main/java/net/minecraft/world/level/block/state/BlockBehaviour.java
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@@ -223,7 +223,7 @@ public abstract class BlockBehaviour {
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/** @deprecated */
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@Deprecated
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public boolean canBeReplaced(BlockState state, BlockPlaceContext context) {
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- return this.material.isReplaceable() && (context.getItemInHand().isEmpty() || !context.getItemInHand().is(this.asItem()));
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+ return this.material.isReplaceable() && (context.getItemInHand().isEmpty() || !context.getItemInHand().is(this.asItem())) && (state.isDestroyable() || (context.getPlayer() != null && context.getPlayer().getAbilities().instabuild)); // Paper
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}
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/** @deprecated */
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@@ -741,6 +741,12 @@ public abstract class BlockBehaviour {
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return ((Block) this.owner).builtInRegistryHolder();
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}
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+ // Paper start
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+ public final boolean isDestroyable() {
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+ return getBlock().isDestroyable();
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+ }
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+ // Paper end
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+
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public Material getMaterial() {
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return this.material;
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}
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@@ -838,7 +844,7 @@ public abstract class BlockBehaviour {
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}
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public PushReaction getPistonPushReaction() {
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- return this.getBlock().getPistonPushReaction(this.asState());
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+ return !isDestroyable() ? PushReaction.BLOCK : this.getBlock().getPistonPushReaction(this.asState()); // Paper
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}
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public boolean isSolidRender(BlockGetter world, BlockPos pos) {
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diff --git a/src/main/java/net/minecraft/world/level/portal/PortalForcer.java b/src/main/java/net/minecraft/world/level/portal/PortalForcer.java
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index 7aa6181237eaec1df2ed2fdcd3b1137dfe89ce69..1311d69bb2fa7b3617936e6ad6eb5236fedc260d 100644
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--- a/src/main/java/net/minecraft/world/level/portal/PortalForcer.java
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+++ b/src/main/java/net/minecraft/world/level/portal/PortalForcer.java
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@@ -210,6 +210,13 @@ public class PortalForcer {
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for (int j = -1; j < 3; ++j) {
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for (int k = -1; k < 4; ++k) {
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temp.setWithOffset(pos, portalDirection.getStepX() * j + enumdirection1.getStepX() * distanceOrthogonalToPortal, k, portalDirection.getStepZ() * j + enumdirection1.getStepZ() * distanceOrthogonalToPortal);
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+ // Paper start - prevent destroying unbreakable blocks
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+ if (!io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowPermanentBlockBreakExploits) {
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+ if (!this.level.getBlockState(temp).isDestroyable()) {
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+ return false;
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+ }
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+ }
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+ // Paper end - prevent destroying unbreakable blocks
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if (k < 0 && !this.level.getBlockState(temp).getMaterial().isSolid()) {
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return false;
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}
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