33 lines
1.5 KiB
Diff
33 lines
1.5 KiB
Diff
From c5e0aeb093d960e33895c510129db518a3ecee63 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Mon, 26 Nov 2018 19:21:58 -0500
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Subject: [PATCH] Prevent rayTrace from loading chunks
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ray tracing into an unloaded chunk should be treated as a miss
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this saves a ton of lag for when AI tries to raytrace near unloaded chunks.
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diff --git a/src/main/java/net/minecraft/server/IBlockAccess.java b/src/main/java/net/minecraft/server/IBlockAccess.java
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index 577b22775..c5586e44d 100644
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--- a/src/main/java/net/minecraft/server/IBlockAccess.java
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+++ b/src/main/java/net/minecraft/server/IBlockAccess.java
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@@ -41,7 +41,15 @@ public interface IBlockAccess {
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default MovingObjectPositionBlock rayTrace(RayTrace raytrace) {
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return (MovingObjectPositionBlock) a(raytrace, (raytrace1, blockposition) -> {
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- IBlockData iblockdata = this.getType(blockposition);
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+ // Paper start - Prevent raytrace from loading chunks
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+ IBlockData iblockdata = ((World)this).getTypeIfLoaded(blockposition);
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+ if (iblockdata == null) {
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+ // copied the last function parameter (listed below)
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+ Vec3D vec3d = raytrace1.b().d(raytrace1.a());
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+
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+ return MovingObjectPositionBlock.a(raytrace1.a(), EnumDirection.a(vec3d.x, vec3d.y, vec3d.z), new BlockPosition(raytrace1.a()));
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+ }
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+ // Paper end
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Fluid fluid = this.getFluid(blockposition);
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Vec3D vec3d = raytrace1.b();
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Vec3D vec3d1 = raytrace1.a();
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--
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2.21.0
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