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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."
72 lines
4.8 KiB
Diff
72 lines
4.8 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: Mon, 13 Jan 2020 15:40:32 +0100
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Subject: [PATCH] Seed based feature search
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This tries to work around the issue where the server will load
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surrounding chunks up to a radius of 100 chunks in order to search for
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features e.g. when running the /locate command or for treasure maps
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(issue #2312).
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This is done by backporting Mojang's change in 1.17 which makes it so
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that the biome (generated by the seed) is checked first if the feature
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can be generated before actually to load the chunk.
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Additionally to that the center location of the target chunk is simply
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returned if the chunk is not loaded to avoid the sync chunk load.
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As this can lead to less precise locations a toggle is provided to
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enable the sync loading of the target chunk again.
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The main downside of this is that it breaks once the seed or generator
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changes but this should usually not happen. A config option to disable
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this completely is added though in case that should ever be necessary.
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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index a03b835320bb99c38ec5f23f0c23284c08bd4171..45e65d1c56b693d8f7c5c12da7774849c737aa96 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -376,6 +376,14 @@ public class PaperWorldConfig {
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}
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}
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+ public boolean seedBasedFeatureSearch = true;
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+ public boolean seedBasedFeatureSearchLoadsChunks = true;
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+ private void seedBasedFeatureSearch() {
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+ seedBasedFeatureSearch = getBoolean("seed-based-feature-search", seedBasedFeatureSearch);
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+ seedBasedFeatureSearchLoadsChunks = getBoolean("seed-based-feature-search-loads-chunks", seedBasedFeatureSearchLoadsChunks);
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+ log("Feature search is based on seed: " + seedBasedFeatureSearch + ", loads chunks:" + seedBasedFeatureSearchLoadsChunks);
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+ }
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+
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public int maxCollisionsPerEntity;
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private void maxEntityCollision() {
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maxCollisionsPerEntity = getInt( "max-entity-collisions", this.spigotConfig.getInt("max-entity-collisions", 8) );
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diff --git a/src/main/java/net/minecraft/world/level/levelgen/feature/StructureFeature.java b/src/main/java/net/minecraft/world/level/levelgen/feature/StructureFeature.java
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index 3878a7f6402a1dff1e019e16dd8772ec7303ebe7..ef77b7e54c9ce3379b3bd6991aebcb4889029907 100644
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--- a/src/main/java/net/minecraft/world/level/levelgen/feature/StructureFeature.java
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+++ b/src/main/java/net/minecraft/world/level/levelgen/feature/StructureFeature.java
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@@ -171,7 +171,24 @@ public abstract class StructureFeature<C extends FeatureConfiguration> {
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if (!world.getWorldBorder().isChunkInBounds(chunkPos.x, chunkPos.z)) { continue; } // Paper
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boolean bl3 = world.getBiomeManager().getPrimaryBiomeAtChunk(chunkPos).getGenerationSettings().isValidStart(this);
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if (bl3) {
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- ChunkAccess chunkAccess = world.getChunk(chunkPos.x, chunkPos.z, ChunkStatus.STRUCTURE_STARTS);
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+ // Paper start - seed based feature search
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+ ChunkAccess chunkAccess = null;
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+ if (structureAccessor.getWorld().paperConfig.seedBasedFeatureSearch) {
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+ Biome biomeBase = structureAccessor.getWorld().getBiomeManager().getBiome(new BlockPos(chunkPos.getMinBlockX() + 9, 0, chunkPos.getMinBlockZ() + 9));
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+ if (!biomeBase.getGenerationSettings().isValidStart(this)) {
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+ continue;
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+ }
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+ if (!structureAccessor.getWorld().paperConfig.seedBasedFeatureSearchLoadsChunks) {
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+ chunkAccess = structureAccessor.getWorld().getChunkIfLoaded(chunkPos.x, chunkPos.z);
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+ if (chunkAccess == null) {
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+ return chunkPos.getWorldPosition().offset(8, searchStartPos.getY(), 8);
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+ }
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+ }
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+ }
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+ if (chunkAccess == null) {
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+ chunkAccess = world.getChunk(chunkPos.x, chunkPos.z, ChunkStatus.STRUCTURE_STARTS);
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+ }
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+ // Paper end
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StructureStart<?> structureStart = structureAccessor.getStartForFeature(SectionPos.bottomOf(chunkAccess), this, chunkAccess);
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if (structureStart != null && structureStart.isValid()) {
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if (skipExistingChunks && structureStart.canBeReferenced()) {
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