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Allow enabling sand duping (#10191)

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Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable.

It should be noted that this decision does not promise all future exploits will be configurable.
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Owen 2024-03-03 17:05:34 -05:00 • committed by GitHub
parent b21eb4d9a4
commit 89d51d5f29
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673 changed files with 157 additions and 189 deletions
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@ -0,0 +1,56 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: dfsek <dfsek@protonmail.com>
Date: Sat, 19 Jun 2021 20:15:59 -0700
Subject: [PATCH] Add more LimitedRegion API
diff --git a/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java b/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
index 50667138028ef6ae273ccbc351916e98ab5645ca..423a853192c87eb81b79cb6f17866c4665cc1655 100644
--- a/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
+++ b/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
@@ -254,4 +254,45 @@ public class CraftLimitedRegion extends CraftRegionAccessor implements LimitedRe
public void addEntityWithPassengers(net.minecraft.world.entity.Entity entity, CreatureSpawnEvent.SpawnReason reason) {
this.entities.add(entity);
}
+
+ // Paper start - Add more LimitedRegion API
+ @Override
+ public void setBlockState(int x, int y, int z, BlockState state) {
+ BlockPos pos = new BlockPos(x, y, z);
+ if (!state.getBlockData().matches(getHandle().getBlockState(pos).createCraftBlockData())) {
+ throw new IllegalArgumentException("BlockData does not match! Expected " + state.getBlockData().getAsString(false) + ", got " + getHandle().getBlockState(pos).createCraftBlockData().getAsString(false));
+ }
+ getHandle().getBlockEntity(pos).load(((org.bukkit.craftbukkit.block.CraftBlockEntityState<?>) state).getSnapshotNBT());
+ }
+
+ @Override
+ public void scheduleBlockUpdate(int x, int y, int z) {
+ BlockPos position = new BlockPos(x, y, z);
+ getHandle().scheduleTick(position, getHandle().getBlockState(position).getBlock(), 0);
+ }
+
+ @Override
+ public void scheduleFluidUpdate(int x, int y, int z) {
+ BlockPos position = new BlockPos(x, y, z);
+ getHandle().scheduleTick(position, getHandle().getFluidState(position).getType(), 0);
+ }
+
+ @Override
+ public World getWorld() {
+ // reading/writing the returned Minecraft world causes a deadlock.
+ // By implementing this, and covering it in warnings, we're assuming people won't be stupid, and
+ // if they are stupid, they'll figure it out pretty fast.
+ return getHandle().getMinecraftWorld().getWorld();
+ }
+
+ @Override
+ public int getCenterChunkX() {
+ return centerChunkX;
+ }
+
+ @Override
+ public int getCenterChunkZ() {
+ return centerChunkZ;
+ }
+ // Paper end - Add more LimitedRegion API
}