Paper/patches/server/0440-Prevent-headless-pistons-from-being-created.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: commandblockguy <commandblockguy1@gmail.com>
Date: Fri, 14 Aug 2020 14:44:14 -0500
Subject: [PATCH] Prevent headless pistons from being created
Prevent headless pistons from being created by explosions or tree/mushroom growth.
diff --git a/src/main/java/net/minecraft/world/level/Explosion.java b/src/main/java/net/minecraft/world/level/Explosion.java
2023-12-06 19:21:23 +01:00
index b7cf13fe4a0af243c0e76d75439b28d5018dadb9..5a2e322d349340fa58f133c2034765f90319b2be 100644
--- a/src/main/java/net/minecraft/world/level/Explosion.java
+++ b/src/main/java/net/minecraft/world/level/Explosion.java
2023-12-06 04:00:14 +01:00
@@ -206,6 +206,15 @@ public class Explosion {
if (f > 0.0F && this.damageCalculator.shouldBlockExplode(this, this.level, blockposition, iblockdata, f)) {
set.add(blockposition);
+ // Paper start - prevent headless pistons from forming
+ if (!io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowHeadlessPistons && iblockdata.getBlock() == Blocks.MOVING_PISTON) {
2023-12-06 19:21:23 +01:00
+ net.minecraft.world.level.block.entity.BlockEntity extension = this.level.getBlockEntity(blockposition);
+ if (extension instanceof net.minecraft.world.level.block.piston.PistonMovingBlockEntity blockEntity && blockEntity.isSourcePiston()) {
+ net.minecraft.core.Direction direction = iblockdata.getValue(net.minecraft.world.level.block.piston.PistonHeadBlock.FACING);
+ set.add(blockposition.relative(direction.getOpposite()));
+ }
+ }
+ // Paper end
}
d4 += d0 * 0.30000001192092896D;