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89d51d5f29
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.
61 lines
3.3 KiB
Diff
61 lines
3.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jakub Zacek <dawon@dawon.eu>
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Date: Mon, 4 Oct 2021 10:16:44 +0200
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Subject: [PATCH] Add methods to find targets for lightning strikes
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== AT ==
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public net.minecraft.server.level.ServerLevel findLightningRod(Lnet/minecraft/core/BlockPos;)Ljava/util/Optional;
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index 60590ee30d2ff3b94c796bae2d7e9d9bc145fc0d..14b3edc05a04f5049f994df5be68e4f01e8cf1ef 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -757,6 +757,11 @@ public class ServerLevel extends Level implements WorldGenLevel {
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}
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protected BlockPos findLightningTargetAround(BlockPos pos) {
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+ // Paper start - Add methods to find targets for lightning strikes
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+ return this.findLightningTargetAround(pos, false);
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+ }
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+ public BlockPos findLightningTargetAround(BlockPos pos, boolean returnNullWhenNoTarget) {
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+ // Paper end - Add methods to find targets for lightning strikes
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BlockPos blockposition1 = this.getHeightmapPos(Heightmap.Types.MOTION_BLOCKING, pos);
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Optional<BlockPos> optional = this.findLightningRod(blockposition1);
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@@ -771,6 +776,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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if (!list.isEmpty()) {
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return ((LivingEntity) list.get(this.random.nextInt(list.size()))).blockPosition();
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} else {
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+ if (returnNullWhenNoTarget) return null; // Paper - Add methods to find targets for lightning strikes
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if (blockposition1.getY() == this.getMinBuildHeight() - 1) {
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blockposition1 = blockposition1.above(2);
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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index fce62b18da2d6ee8d10688107ca3179abfa3781b..ca68faef4232859e833adfd86a0ce13f7c2ad00e 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
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@@ -667,6 +667,23 @@ public class CraftWorld extends CraftRegionAccessor implements World {
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return (LightningStrike) lightning.getBukkitEntity();
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}
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+ // Paper start - Add methods to find targets for lightning strikes
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+ @Override
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+ public Location findLightningRod(Location location) {
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+ return this.world.findLightningRod(io.papermc.paper.util.MCUtil.toBlockPosition(location))
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+ .map(blockPos -> io.papermc.paper.util.MCUtil.toLocation(this.world, blockPos)
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+ // get the actual rod pos
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+ .subtract(0, 1, 0))
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+ .orElse(null);
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+ }
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+
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+ @Override
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+ public Location findLightningTarget(Location location) {
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+ final BlockPos pos = this.world.findLightningTargetAround(io.papermc.paper.util.MCUtil.toBlockPosition(location), true);
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+ return pos == null ? null : io.papermc.paper.util.MCUtil.toLocation(this.world, pos);
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+ }
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+ // Paper end - Add methods to find targets for lightning strikes
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+
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@Override
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public boolean generateTree(Location loc, TreeType type) {
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return this.generateTree(loc, CraftWorld.rand, type);
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