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a923e332ee
Also adds per-world spawn limit config in paper.yml for `underground_water_creature`, and migrates existing spawn limit config options to their Mojang names.
71 lines
4.8 KiB
Diff
71 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 568da8f2ef3c5e1412cf13c10b425100af75e902..7ef45c941dacaa1f5cc4f0544af9ec76424cc783 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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@@ -417,6 +417,14 @@ 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 d7129f3379f2edecbcfd85f83d75e4d7064ce71d..7705ad4460ddf5166d922888f3a1368c50bb11ca 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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