4d40e87b33
Had to drop some hunks modifying getEntities, as those methods were rewritten by Mojang in 1.17
32 lines
1.9 KiB
Diff
32 lines
1.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Phoenix616 <mail@moep.tv>
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Date: Sun, 7 Jun 2020 21:43:42 +0100
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Subject: [PATCH] Maps shouldn't load chunks
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Previously maps would load all chunks in a certain radius depending on
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their scale when trying to update their content. This would result in
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main thread chunk loads when they weren't really necessary, especially
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on low view distances or "slow" async chunk loads after teleports or
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other prioritisation.
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This changes it to only try to render already loaded chunks based on
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the assumption that the chunks around the player will get loaded
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eventually anyways and that maps will get checked for update every
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five ticks that movement occur in anyways.
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diff --git a/src/main/java/net/minecraft/world/item/MapItem.java b/src/main/java/net/minecraft/world/item/MapItem.java
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index 044111a5ea88d3f938c08b027ac6836355eff7c2..994a3c0253c7298fef1471736b74bd34ec87738a 100644
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--- a/src/main/java/net/minecraft/world/item/MapItem.java
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+++ b/src/main/java/net/minecraft/world/item/MapItem.java
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@@ -132,9 +132,9 @@ public class MapItem extends ComplexItem {
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int k2 = (j / i + k1 - 64) * i;
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int l2 = (k / i + l1 - 64) * i;
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Multiset<MaterialColor> multiset = LinkedHashMultiset.create();
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- LevelChunk chunk = world.getChunkAt(new BlockPos(k2, 0, l2));
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+ LevelChunk chunk = world.getChunkIfLoaded(new BlockPos(k2, 0, l2)); // Paper - Maps shouldn't load chunks
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- if (!chunk.isEmpty()) {
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+ if (chunk != null && !chunk.isEmpty()) { // Paper - Maps shouldn't load chunks
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ChunkPos chunkcoordintpair = chunk.getPos();
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int i3 = k2 & 15;
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int j3 = l2 & 15;
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