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Paper/Spigot-Server-Patches/0517-Remove-some-streams-from-structures.patch
Aikar c953e51dd7
[Auto] Updated Upstream (CraftBukkit/Spigot) 
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

CraftBukkit Changes:
221aed6cf SPIGOT-6413: Server Corruption Changing Blocks in Piston Events
721c4966b SPIGOT-6411: The PlayerEditBookEvent is not called when the player edits a book in the off-hand.
be0e94581 Add mc-dev imports

Spigot Changes:
a25e8ed2 Remove mc-dev imports
2021-04-07 01:17:32 -04:00

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Raw Blame History

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/StructureManager.java b/src/main/java/net/minecraft/world/level/StructureManager.java
index 6fe276b29aa9fe1b312ef2773484fa780506fded..07dcfd56af1014ad159828dd9ee2d89c2010b9f4 100644
--- a/src/main/java/net/minecraft/world/level/StructureManager.java
+++ b/src/main/java/net/minecraft/world/level/StructureManager.java
@@ -2,6 +2,7 @@
package net.minecraft.world.level;
import com.mojang.datafixers.DataFixUtils;
+import it.unimi.dsi.fastutil.objects.ObjectArrayList; // Paper
import java.util.stream.Stream;
import javax.annotation.Nullable;
import net.minecraft.core.BaseBlockPosition;
@@ -12,11 +13,12 @@ import net.minecraft.world.level.chunk.ChunkStatus;
import net.minecraft.world.level.chunk.IStructureAccess;
import net.minecraft.world.level.levelgen.GeneratorSettings;
import net.minecraft.world.level.levelgen.feature.StructureGenerator;
+import net.minecraft.world.level.levelgen.structure.StructurePiece;
import net.minecraft.world.level.levelgen.structure.StructureStart;
public class StructureManager {
- private final GeneratorAccess a;
+ private final GeneratorAccess a; public GeneratorAccess getLevel() { return a; } // Paper - OBFHELPER
private final GeneratorSettings b;
public StructureManager(GeneratorAccess generatoraccess, GeneratorSettings generatorsettings) {
@@ -42,6 +44,20 @@ public class StructureManager {
});
}
+ // Paper start - remove structure streams
+ public java.util.List<StructureStart<?>> getFeatureStarts(SectionPosition sectionPosition, StructureGenerator<?> structureGenerator) {
+ java.util.List<StructureStart<?>> list = new ObjectArrayList<>();
+ for (Long curLong: getLevel().getChunkAt(sectionPosition.a(), sectionPosition.c(), ChunkStatus.STRUCTURE_REFERENCES).b(structureGenerator)) {
+ SectionPosition sectionPosition1 = SectionPosition.a(new ChunkCoordIntPair(curLong), 0);
+ StructureStart<?> structurestart = a(sectionPosition1, structureGenerator, getLevel().getChunkAt(sectionPosition1.a(), sectionPosition1.c(), ChunkStatus.STRUCTURE_STARTS));
+ if (structurestart != null && structurestart.e()) {
+ list.add(structurestart);
+ }
+ }
+ return list;
+ }
+ // Paper end
+
@Nullable
public StructureStart<?> a(SectionPosition sectionposition, StructureGenerator<?> structuregenerator, IStructureAccess istructureaccess) {
return istructureaccess.a(structuregenerator);
@@ -60,13 +76,21 @@ public class StructureManager {
}
public StructureStart<?> a(BlockPosition blockposition, boolean flag, StructureGenerator<?> structuregenerator) {
- return (StructureStart) DataFixUtils.orElse(this.a(SectionPosition.a(blockposition), structuregenerator).filter((structurestart) -> {
- return structurestart.c().b((BaseBlockPosition) blockposition);
- }).filter((structurestart) -> {
- return !flag || structurestart.d().stream().anyMatch((structurepiece) -> {
- return structurepiece.g().b((BaseBlockPosition) blockposition);
- });
- }).findFirst(), StructureStart.a);
+ // Paper start - remove structure streams
+ for (StructureStart<?> structurestart : getFeatureStarts(SectionPosition.a(blockposition), structuregenerator)) {
+ if (structurestart.c().b(blockposition)) {
+ if (!flag) {
+ return structurestart;
+ }
+ for (StructurePiece structurepiece : structurestart.d()) {
+ if (structurepiece.g().b(blockposition)) {
+ return structurestart;
+ }
+ }
+ }
+ }
+ return StructureStart.a;
+ // Paper end
}
// Spigot start
diff --git a/src/main/java/net/minecraft/world/level/biome/BiomeBase.java b/src/main/java/net/minecraft/world/level/biome/BiomeBase.java
index 7147cdda756ccb3d4f6880802128f68601783883..15096a9c2719b8b4c099f62d0a1c808e56b63a8e 100644
--- a/src/main/java/net/minecraft/world/level/biome/BiomeBase.java
+++ b/src/main/java/net/minecraft/world/level/biome/BiomeBase.java
@@ -39,6 +39,7 @@ import net.minecraft.world.level.levelgen.WorldGenStage;
import net.minecraft.world.level.levelgen.feature.StructureGenerator;
import net.minecraft.world.level.levelgen.feature.WorldGenFeatureConfigured;
import net.minecraft.world.level.levelgen.structure.StructureBoundingBox;
+import net.minecraft.world.level.levelgen.structure.StructureStart;
import net.minecraft.world.level.levelgen.surfacebuilders.WorldGenSurfaceComposite;
import net.minecraft.world.level.levelgen.synth.NoiseGenerator3;
import net.minecraft.world.level.material.Fluid;
@@ -238,9 +239,11 @@ public final class BiomeBase {
int l1 = j1 << 4;
try {
- structuremanager.a(SectionPosition.a(blockposition), structuregenerator).forEach((structurestart) -> {
- structurestart.a(regionlimitedworldaccess, structuremanager, chunkgenerator, seededrandom, new StructureBoundingBox(k1, l1, k1 + 15, l1 + 15), new ChunkCoordIntPair(i1, j1));
- });
+ // Paper start - remove structure streams
+ for (StructureStart<?> structureStart : structuremanager.getFeatureStarts(SectionPosition.a(blockposition), structuregenerator)) {
+ structureStart.a(regionlimitedworldaccess, structuremanager, chunkgenerator, seededrandom, new StructureBoundingBox(k1, l1, k1 + 15, l1 + 15), new ChunkCoordIntPair(i1, j1));
+ }
+ // Paper end
} catch (Exception exception) {
CrashReport crashreport = CrashReport.a(exception, "Feature placement");
diff --git a/src/main/java/net/minecraft/world/level/levelgen/ChunkGeneratorAbstract.java b/src/main/java/net/minecraft/world/level/levelgen/ChunkGeneratorAbstract.java
index 700b32322e8d0fbb8ec2824e50a340be16b48f81..369fb0bda22f02e76b901b6eb8990651c53c7577 100644
--- a/src/main/java/net/minecraft/world/level/levelgen/ChunkGeneratorAbstract.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/ChunkGeneratorAbstract.java
@@ -40,6 +40,7 @@ import net.minecraft.world.level.levelgen.feature.structures.WorldGenFeatureDefi
import net.minecraft.world.level.levelgen.feature.structures.WorldGenFeatureDefinedStructurePoolTemplate;
import net.minecraft.world.level.levelgen.structure.StructureBoundingBox;
import net.minecraft.world.level.levelgen.structure.StructurePiece;
+import net.minecraft.world.level.levelgen.structure.StructureStart;
import net.minecraft.world.level.levelgen.structure.WorldGenFeaturePillagerOutpostPoolPiece;
import net.minecraft.world.level.levelgen.synth.NoiseGenerator;
import net.minecraft.world.level.levelgen.synth.NoiseGenerator3;
@@ -455,7 +456,7 @@ public final class ChunkGeneratorAbstract extends ChunkGenerator {
while (iterator.hasNext()) {
StructureGenerator<?> structuregenerator = (StructureGenerator) iterator.next();
- structuremanager.a(SectionPosition.a(chunkcoordintpair, 0), structuregenerator).forEach((structurestart) -> {
+ for (StructureStart<?> structurestart : structuremanager.getFeatureStarts(SectionPosition.a(chunkcoordintpair, 0), structuregenerator)) { // Paper - remove structure streams
Iterator iterator1 = structurestart.d().iterator();
while (iterator1.hasNext()) {
@@ -487,7 +488,7 @@ public final class ChunkGeneratorAbstract extends ChunkGenerator {
}
}
- });
+ } // Paper - remove structure streams
}
double[][][] adouble = new double[2][this.p + 1][this.o + 1];
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