PaperMC/patches/unapplied/server/0476-Remove-some-streams-from-structures.patch

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2021-06-15 07:38:36 +02:00
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: JRoy <joshroy126@gmail.com>
Date: Mon, 29 Jun 2020 17:03:06 -0400
Subject: [PATCH] Remove some streams from structures
This showed up a lot in the spark profiler, should have a low-medium performance improvement.
diff --git a/src/main/java/net/minecraft/world/level/StructureFeatureManager.java b/src/main/java/net/minecraft/world/level/StructureFeatureManager.java
index 21f67cf20dede30a056a7807a0e7338e858da142..9a8e44fb3b1cffec3f70c9812c80175bd07f10e2 100644
--- a/src/main/java/net/minecraft/world/level/StructureFeatureManager.java
+++ b/src/main/java/net/minecraft/world/level/StructureFeatureManager.java
@@ -45,6 +45,20 @@ public class StructureFeatureManager {
});
}
+ // Paper start - remove structure streams - based on method above
+ public java.util.List<StructureStart<?>> streamlessStartsForFeature(SectionPos sectionPosition, StructureFeature<?> structureGenerator) {
+ java.util.List<StructureStart<?>> list = new it.unimi.dsi.fastutil.objects.ObjectArrayList<>();
+ for (Long curLong : this.level.getChunk(sectionPosition.x(), sectionPosition.z(), ChunkStatus.STRUCTURE_REFERENCES).getReferencesForFeature(structureGenerator)) {
+ SectionPos sectionPosition1 = SectionPos.of(new ChunkPos(curLong), 0);
+ StructureStart<?> structurestart = getStartForFeature(sectionPosition1, structureGenerator, this.level.getChunk(sectionPosition1.x(), sectionPosition1.z(), ChunkStatus.STRUCTURE_STARTS));
+ if (structurestart != null && structurestart.isValid()) {
+ list.add(structurestart);
+ }
+ }
+ return list;
+ }
+ // Paper end
+
@Nullable
public StructureStart<?> getStartForFeature(SectionPos pos, StructureFeature<?> feature, FeatureAccess holder) {
return holder.getStartForFeature(feature);
@@ -63,11 +77,20 @@ public class StructureFeatureManager {
}
public StructureStart<?> getStructureAt(BlockPos pos, boolean matchChildren, StructureFeature<?> feature) {
- return (StructureStart) DataFixUtils.orElse(this.startsForFeature(SectionPos.of(pos), feature).filter((structurestart) -> {
- return matchChildren ? structurestart.getPieces().stream().anyMatch((structurepiece) -> {
- return structurepiece.getBoundingBox().isInside((Vec3i) pos);
- }) : structurestart.getBoundingBox().isInside((Vec3i) pos);
- }).findFirst(), StructureStart.INVALID_START);
+ // Paper start - remove structure streams
+ for (StructureStart<?> structureStart : streamlessStartsForFeature(SectionPos.of(pos), feature)) {
+ if (matchChildren) {
+ for (net.minecraft.world.level.levelgen.structure.StructurePiece piece : structureStart.getPieces()) {
+ if (piece.getBoundingBox().isInside(pos)) {
+ return structureStart;
+ }
+ }
+ } else if (structureStart.getBoundingBox().isInside(pos)) {
+ return structureStart;
+ }
+ }
+ return StructureStart.INVALID_START;
+ // Paper end
}
// Spigot start
diff --git a/src/main/java/net/minecraft/world/level/biome/Biome.java b/src/main/java/net/minecraft/world/level/biome/Biome.java
index 3f3b4e4ea8231fdcc799bd9de3e20747a5634603..a7a7e6cd87270e64a92448f03f8b0b0c7e375ec7 100644
--- a/src/main/java/net/minecraft/world/level/biome/Biome.java
+++ b/src/main/java/net/minecraft/world/level/biome/Biome.java
@@ -44,6 +44,7 @@ import net.minecraft.world.level.levelgen.WorldgenRandom;
import net.minecraft.world.level.levelgen.feature.ConfiguredFeature;
import net.minecraft.world.level.levelgen.feature.StructureFeature;
import net.minecraft.world.level.levelgen.structure.BoundingBox;
+import net.minecraft.world.level.levelgen.structure.StructureStart;
import net.minecraft.world.level.levelgen.surfacebuilders.ConfiguredSurfaceBuilder;
import net.minecraft.world.level.levelgen.synth.PerlinSimplexNoise;
import net.minecraft.world.level.material.FluidState;
@@ -241,9 +242,11 @@ public final class Biome {
int p = region.getMinBuildHeight() + 1;
int q = region.getMaxBuildHeight() - 1;
region.setCurrentlyGenerating(supplier);
- structureAccessor.startsForFeature(SectionPos.of(origin), structureFeature).forEach((structureStart) -> {
+ // Paper start - remove structure streams
+ for (StructureStart<?> structureStart : structureAccessor.streamlessStartsForFeature(SectionPos.of(origin), structureFeature)) {
structureStart.placeInChunk(region, structureAccessor, chunkGenerator, random, new BoundingBox(n, p, o, n + 15, q, o + 15), new ChunkPos(l, m));
- });
+ }
+ // Paper end
} catch (Exception var24) {
CrashReport crashReport = CrashReport.forThrowable(var24, "Feature placement");
crashReport.addCategory("Feature").setDetail("Description", supplier::get);
diff --git a/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java b/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java
index ed3bfe13d0e3835ce0dbe3ae5af8cd22a7ea25e6..c52d1a23a0f0bdde062f73a435bc6b9cef51c437 100644
--- a/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java
@@ -44,7 +44,7 @@ public class Beardifier {
this.rigids = new ObjectArrayList<>(10);
for(StructureFeature<?> structureFeature : StructureFeature.NOISE_AFFECTING_FEATURES) {
- accessor.startsForFeature(SectionPos.bottomOf(chunk), structureFeature).forEach((start) -> {
+ for (net.minecraft.world.level.levelgen.structure.StructureStart<?> start : accessor.streamlessStartsForFeature(SectionPos.of(chunkPos, 0), structureFeature)) { // Paper - remove structure streams
for(StructurePiece structurePiece : start.getPieces()) {
if (structurePiece.isCloseToChunk(chunkPos, 12)) {
if (structurePiece instanceof PoolElementStructurePiece) {
@@ -67,7 +67,7 @@ public class Beardifier {
}
}
- });
+ } // Paper - remove structure streams
}
this.pieceIterator = this.rigids.iterator();