papermc/Spigot-Server-Patches/0316-Prevent-rayTrace-from-loading-chunks.patch
Aikar 1ab021ddca Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
565a5727 #533: Add consumed item, hand and consumeItem boolean to EntityShootBowEvent

CraftBukkit Changes:
927200a9 #718: Add consumed item, hand and consumeItem boolean to EntityShootBowEvent
2020-08-31 08:30:51 -04:00

29 lines
1.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 26 Nov 2018 19:21:58 -0500
Subject: [PATCH] Prevent rayTrace from loading chunks
ray tracing into an unloaded chunk should be treated as a miss
this saves a ton of lag for when AI tries to raytrace near unloaded chunks.
diff --git a/src/main/java/net/minecraft/server/IBlockAccess.java b/src/main/java/net/minecraft/server/IBlockAccess.java
index a168218c6f41bb798557461a80efb785eea99b25..b90c9990668f7956e8ef67413bcfc5d7d9616db1 100644
--- a/src/main/java/net/minecraft/server/IBlockAccess.java
+++ b/src/main/java/net/minecraft/server/IBlockAccess.java
@@ -46,7 +46,15 @@ public interface IBlockAccess {
// CraftBukkit start - moved block handling into separate method for use by Block#rayTrace
default MovingObjectPositionBlock rayTraceBlock(RayTrace raytrace1, BlockPosition blockposition) {
- IBlockData iblockdata = this.getType(blockposition);
+ // Paper start - Prevent raytrace from loading chunks
+ IBlockData iblockdata = this.getTypeIfLoaded(blockposition);
+ if (iblockdata == null) {
+ // copied the last function parameter (listed below)
+ Vec3D vec3d = raytrace1.b().d(raytrace1.a());
+
+ return MovingObjectPositionBlock.a(raytrace1.a(), EnumDirection.a(vec3d.x, vec3d.y, vec3d.z), new BlockPosition(raytrace1.a()));
+ }
+ // Paper end
Fluid fluid = this.getFluid(blockposition);
Vec3D vec3d = raytrace1.b();
Vec3D vec3d1 = raytrace1.a();