41647af74c
We cannot put blocking network I/O onto the worldgen threads, this will crash the server if it stalls
59 Zeilen
2.9 KiB
Diff
59 Zeilen
2.9 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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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 8c61dc53f4874ab7013938abdf5d65a608369474..9b9653e2a88e63932884cfd392ac372a1b0da12b 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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@@ -775,6 +775,11 @@ 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
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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
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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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@@ -789,6 +794,7 @@ 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
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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 b79b0b78e3e69c2b5c9aa21cf63fe5cc8ea506ca..422655d6ab17d075d045df8e5ce1666c92f9321a 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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@@ -691,6 +691,23 @@ 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
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+ @Override
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+ public Location findLightningRod(Location location) {
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+ return this.world.findLightningRod(net.minecraft.server.MCUtil.toBlockPosition(location))
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+ .map(blockPos -> net.minecraft.server.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(net.minecraft.server.MCUtil.toBlockPosition(location), true);
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+ return pos == null ? null : net.minecraft.server.MCUtil.toLocation(this.world, pos);
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+ }
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+ // Paper end
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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 generateTree(loc, CraftWorld.rand, type);
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