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bc127ea819
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: eec4aab0 SPIGOT-6657: Add getPlayer to SheepDyeWoolEvent 205213c6 SPIGOT-6656: CauldronLevelChangeEvent is not fired correctly when dripstone fills the cauldron CraftBukkit Changes: b8c522d5 SPIGOT-6657: Add getPlayer to SheepDyeWoolEvent f04a77dc SPIGOT-6656: CauldronLevelChangeEvent is not fired correctly when dripstone fills the cauldron d1dbcebc SPIGOT-6653: Canceling snow bucket placement removes snow from bucket 4f34a67b #891: Fix scheduler task ID overflow and duplication issues Spigot Changes: d03d7f12 BUILDTOOLS-604: Rebuild patches
174 lines
10 KiB
Diff
174 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/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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index 89a475429ede42f3a8aae16760e56bfba57bb1b5..cbb7000aec6703c195e807014de8ecc5b5ec0756 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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@@ -416,4 +416,17 @@ public class PaperConfig {
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private static void midTickChunkTasks() {
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midTickChunkTasks = getInt("settings.chunk-tasks-per-tick", midTickChunkTasks);
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}
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+
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+ public static boolean allowBlockPermanentBreakingExploits = false;
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+ private static void allowBlockPermanentBreakingExploits() {
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+ if (config.contains("allow-perm-block-break-exploits")) {
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+ allowBlockPermanentBreakingExploits = config.getBoolean("allow-perm-block-break-exploits", false);
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+ config.set("allow-perm-block-break-exploits", null);
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+ }
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+
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+ config.set("settings.unsupported-settings.allow-permanent-block-break-exploits-readme", "This setting controls if players should be able to break bedrock, end portals and other intended to be permanent blocks.");
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+ allowBlockPermanentBreakingExploits = getBoolean("settings.unsupported-settings.allow-permanent-block-break-exploits", allowBlockPermanentBreakingExploits);
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+
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+ }
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+
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}
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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 a861b4b55862b1c5583101fe7f28a3a43c547468..1575fb0bbad6e11f25fb9ce51fd1f15a1b11e0fe 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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@@ -174,6 +174,7 @@ 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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@@ -332,7 +333,7 @@ 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 9cf64082555d848e4149f9a982dd770db9defa3c..36fd88239da908c2685a853ec28c0f3db691fad0 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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@@ -425,6 +425,10 @@ 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 6a31e3a3466369ede28e28bc3b9fda8dcb77e136..d6a3f3a2edae806b0ebf5bf5ac445116c0d64535 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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@@ -91,6 +91,19 @@ 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 com.destroystokyo.paper.PaperConfig.allowBlockPermanentBreakingExploits ||
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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 c345bd7542f3ffa09719864887e1516f1182e7e3..4eac07022a7d896ee8921afa6d35cba7f0c89941 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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@@ -200,6 +200,12 @@ 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 (!com.destroystokyo.paper.PaperConfig.allowBlockPermanentBreakingExploits && 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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@@ -232,7 +238,7 @@ 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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@@ -261,7 +267,14 @@ 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 (com.destroystokyo.paper.PaperConfig.allowBlockPermanentBreakingExploits || 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 6a3b6611954e07760d586e2dc8c2015cfae7c0a5..736e38a6ee3dc36ed886d047484bda9516845324 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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@@ -206,7 +206,7 @@ public abstract class BlockBehaviour {
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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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@@ -656,7 +656,11 @@ public abstract class BlockBehaviour {
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public Block getBlock() {
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return (Block) this.owner;
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}
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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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public Material getMaterial() {
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return this.material;
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}
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@@ -754,7 +758,7 @@ 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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