18c3716c49
This enables us a fast reference to the entities current chunk instead of having to look it up by hashmap lookups. We also store counts by type to further enable other performance optimizations in later patches.
53 lines
2.6 KiB
Diff
53 lines
2.6 KiB
Diff
From 8a9b221bcd755747f0e03bb84f9ba7403eaac7fd Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Mon, 28 Mar 2016 22:03:09 -0400
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Subject: [PATCH] Prevent Waterflow BlockFromToEvent from loading chunks
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Many protection plugins would unintentionally trigger chunk loads
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by calling .getToBlock() on an unloaded chunk, killing performance.
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Simply skip the event call. as CraftBukkit blocks changing the block
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of unloaded chunks anyways.
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This keeps behavior consistent, vs inconsistent flowing based on plugin triggered loads.
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diff --git a/src/main/java/net/minecraft/server/BlockFlowing.java b/src/main/java/net/minecraft/server/BlockFlowing.java
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index 739b9aac3..ff90e08eb 100644
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--- a/src/main/java/net/minecraft/server/BlockFlowing.java
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+++ b/src/main/java/net/minecraft/server/BlockFlowing.java
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@@ -96,6 +96,7 @@ public class BlockFlowing extends BlockFluids {
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if (this.h(world, blockposition.down(), iblockdata2)) {
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// CraftBukkit start
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+ if (!canFlowTo(world, source, BlockFace.DOWN)) { return; } // Paper
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BlockFromToEvent event = new BlockFromToEvent(source, BlockFace.DOWN);
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world.getServer().getPluginManager().callEvent(event);
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@@ -136,6 +137,7 @@ public class BlockFlowing extends BlockFluids {
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EnumDirection enumdirection1 = (EnumDirection) iterator1.next();
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// CraftBukkit start
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+ if (!canFlowTo(world, source, org.bukkit.craftbukkit.block.CraftBlock.notchToBlockFace(enumdirection1))) { continue; } // Paper
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BlockFromToEvent event = new BlockFromToEvent(source, org.bukkit.craftbukkit.block.CraftBlock.notchToBlockFace(enumdirection1));
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world.getServer().getPluginManager().callEvent(event);
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@@ -148,8 +150,14 @@ public class BlockFlowing extends BlockFluids {
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}
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+ // Paper start
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+ private boolean canFlowTo(World world, org.bukkit.block.Block source, BlockFace face) {
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+ return source.getWorld().isChunkLoaded((source.getX() + face.getModX()) >> 4, (source.getZ() + face.getModZ()) >> 4);
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+ }
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+ // Paper end
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+
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private void flow(World world, BlockPosition blockposition, IBlockData iblockdata, int i) {
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- if (world.isLoaded(blockposition) && this.h(world, blockposition, iblockdata)) { // CraftBukkit - add isLoaded check
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+ if (/*world.isLoaded(blockposition) &&*/ this.h(world, blockposition, iblockdata)) { // CraftBukkit - add isLoaded check // Paper - Already checked before we get here for isLoaded
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if (iblockdata.getMaterial() != Material.AIR) {
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if (this.material == Material.LAVA) {
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this.fizz(world, blockposition);
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--
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2.18.0
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