Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-20 21:40:06 +01:00
174 Zeilen
10 KiB
Diff
174 Zeilen
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 78271b400c79578d043b20a5389a37b1bef9a70d..5f3b0d95cc7e6a0434d78ea7305a70689c41c71c 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 667a6d645034c67639c01b8221591877bcb87b35..0f0a5fa2be5a7c69291b593a04cad83e069ba5b1 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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@@ -151,6 +151,7 @@ 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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Optional<Float> optional = this.damageCalculator.a(this, this.level, blockposition, iblockdata, fluid);
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@@ -304,7 +305,7 @@ 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 67ab681a9c9157a420de5fd872bde1fc0de24561..9b50b8030174338c04b60d441b980131e1d593e4 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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@@ -422,6 +422,10 @@ 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 = 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 fca5d175cbef24fb0ee2d0bbedc8d1c0af3eb528..5b84ee4091e354c4b6500f58a31931f2a6827ffc 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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@@ -62,6 +62,19 @@ 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 dc9584a30c18d964afd9cc118c81c24a80beba63..40a18302dd682e5ade4ec77ac7f316b6c0f8c112 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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@@ -193,6 +193,12 @@ 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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@@ -224,7 +230,7 @@ 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(pos, MovingPistonBlock.newMovingBlockEntity((BlockState) this.defaultBlockState().setValue(PistonBaseBlock.FACING, Direction.from3DDataValue(data & 7)), enumdirection, false, true));
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+ world.setBlockEntity(pos, MovingPistonBlock.newMovingBlockEntity((BlockState) this.defaultBlockState().setValue(PistonBaseBlock.FACING, Direction.from3DDataValue(data & 7)), enumdirection, false, true)); // Paper - diff on change, j is facing direction - copy this above
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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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@@ -253,7 +259,14 @@ 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.setAir(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 57eedaeedaa24bd274fb55c6e4521f1305382645..df2836b071158729728411f5b228cc38dddd4d4e 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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@@ -189,7 +189,7 @@ 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().getItem() != this.asItem());
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+ return this.material.isReplaceable() && (context.getItemInHand().isEmpty() || context.getItemInHand().getItem() != this.asItem()) && (state.isDestroyable() || (context.getPlayer() != null && context.getPlayer().abilities.instabuild)); // Paper
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}
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@Deprecated
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@@ -393,7 +393,11 @@ 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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@@ -483,7 +487,7 @@ 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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