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27 lines
2 KiB
Diff
27 lines
2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: commandblockguy <commandblockguy1@gmail.com>
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Date: Fri, 14 Aug 2020 14:44:14 -0500
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Subject: [PATCH] Prevent headless pistons from being created
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Prevent headless pistons from being created by explosions or tree/mushroom growth.
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diff --git a/src/main/java/net/minecraft/world/level/ServerExplosion.java b/src/main/java/net/minecraft/world/level/ServerExplosion.java
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index d3d74a7f306d88b0d5cd83893b3ee5e750fd4caf..86656de31b1e33381eddd3ef210122118b31e620 100644
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--- a/src/main/java/net/minecraft/world/level/ServerExplosion.java
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+++ b/src/main/java/net/minecraft/world/level/ServerExplosion.java
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@@ -164,6 +164,15 @@ public class ServerExplosion implements Explosion {
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if (f > 0.0F && this.damageCalculator.shouldBlockExplode(this, this.level, blockposition, iblockdata, f)) {
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set.add(blockposition);
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+ // Paper start - prevent headless pistons from forming
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+ if (!io.papermc.paper.configuration.GlobalConfiguration.get().unsupportedSettings.allowHeadlessPistons && iblockdata.getBlock() == Blocks.MOVING_PISTON) {
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+ net.minecraft.world.level.block.entity.BlockEntity extension = this.level.getBlockEntity(blockposition);
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+ if (extension instanceof net.minecraft.world.level.block.piston.PistonMovingBlockEntity blockEntity && blockEntity.isSourcePiston()) {
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+ net.minecraft.core.Direction direction = iblockdata.getValue(net.minecraft.world.level.block.piston.PistonHeadBlock.FACING);
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+ set.add(blockposition.relative(direction.getOpposite()));
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+ }
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+ }
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+ // Paper end - prevent headless pistons from forming
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}
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d4 += d0 * 0.30000001192092896D;
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