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"It was from a different time before books were as jank as they are now. As time has gone on they've only proven to be worse and worse."
30 lines
1.7 KiB
Diff
30 lines
1.7 KiB
Diff
From 0000000000000000000000000000000000000000 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/world/level/BlockGetter.java b/src/main/java/net/minecraft/world/level/BlockGetter.java
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index e85e4a2dfceb0aa40e73b43a5e122a5906cac585..fe4dba491b586757a16aa36e62682f364daa2602 100644
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--- a/src/main/java/net/minecraft/world/level/BlockGetter.java
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+++ b/src/main/java/net/minecraft/world/level/BlockGetter.java
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@@ -75,7 +75,15 @@ public interface BlockGetter extends LevelHeightAccessor {
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// CraftBukkit start - moved block handling into separate method for use by Block#rayTrace
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default BlockHitResult rayTraceBlock(ClipContext raytrace1, BlockPos blockposition) {
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- BlockState iblockdata = this.getBlockState(blockposition);
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+ // Paper start - Prevent raytrace from loading chunks
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+ BlockState iblockdata = 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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+ Vec3 vec3d = raytrace1.getFrom().subtract(raytrace1.getTo());
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+
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+ return BlockHitResult.miss(raytrace1.getTo(), Direction.getNearest(vec3d.x, vec3d.y, vec3d.z), new BlockPos(raytrace1.getTo()));
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+ }
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+ // Paper end
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FluidState fluid = this.getFluidState(blockposition);
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Vec3 vec3d = raytrace1.getFrom();
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Vec3 vec3d1 = raytrace1.getTo();
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