224 Zeilen
9.9 KiB
Diff
224 Zeilen
9.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Fri, 24 May 2019 07:53:16 +0100
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Subject: [PATCH] Fix some generation concurrency issues
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index a59a965104a2c2977fa3b3d0a199913df268bbd3..69db339c29c8f06026f05b0b5bb8019099af3fdf 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -86,6 +86,23 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
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private int tileTickPosition;
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public final Map<Explosion.CacheKey, Float> explosionDensityCache = new HashMap<>(); // Paper - Optimize explosions
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public java.util.ArrayDeque<BlockRedstoneTorch.RedstoneUpdateInfo> redstoneUpdateInfos; // Paper - Move from Map in BlockRedstoneTorch to here
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+ // Paper start - yes this is hacky as shit
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+ RegionLimitedWorldAccess regionLimited;
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+ World originalWorld;
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+ public World regionLimited(RegionLimitedWorldAccess limitedWorldAccess) {
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+ try {
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+ World clone = (World) super.clone();
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+ clone.regionLimited = limitedWorldAccess;
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+ clone.originalWorld = this;
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+ return clone;
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+ } catch (CloneNotSupportedException e1) {
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+ }
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+ return null;
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+ }
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+ ChunkCoordIntPair[] strongholdCoords;
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+ List<StructureStart> strongholdStuctures = Lists.newArrayList();
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+ final java.lang.Object stuctureLock = new Object();
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+ // Paper end
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public CraftWorld getWorld() {
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return this.world;
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diff --git a/src/main/java/net/minecraft/server/WorldGenFeatureStateProviderWeighted.java b/src/main/java/net/minecraft/server/WorldGenFeatureStateProviderWeighted.java
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index 22e14fe1e98c8439f8db74c9464137a497fdaf7c..e2af6d43b2eafeecad8fd070fc70195c7b0bb93f 100644
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--- a/src/main/java/net/minecraft/server/WorldGenFeatureStateProviderWeighted.java
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+++ b/src/main/java/net/minecraft/server/WorldGenFeatureStateProviderWeighted.java
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@@ -23,18 +23,18 @@ public class WorldGenFeatureStateProviderWeighted extends WorldGenFeatureStatePr
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this(new WeightedList<>(dynamic.get("entries").orElseEmptyList(), IBlockData::a));
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}
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- public WorldGenFeatureStateProviderWeighted a(IBlockData iblockdata, int i) {
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+ public synchronized WorldGenFeatureStateProviderWeighted a(IBlockData iblockdata, int i) { // Paper
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this.b.a(iblockdata, i);
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return this;
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}
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@Override
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- public IBlockData a(Random random, BlockPosition blockposition) {
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+ public synchronized IBlockData a(Random random, BlockPosition blockposition) { // Paper
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return (IBlockData) this.b.b(random);
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}
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@Override
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- public <T> T a(DynamicOps<T> dynamicops) {
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+ public synchronized <T> T a(DynamicOps<T> dynamicops) { // Paper
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Builder<T, T> builder = ImmutableMap.builder();
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builder.put(dynamicops.createString("type"), dynamicops.createString(IRegistry.t.getKey(this.a).toString())).put(dynamicops.createString("entries"), this.b.a(dynamicops, (iblockdata) -> {
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diff --git a/src/main/java/net/minecraft/server/WorldGenStronghold.java b/src/main/java/net/minecraft/server/WorldGenStronghold.java
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index fc4348b60242e4a9d8612c3b8ce01711c32f4b1c..44be7169ffd5961df28d21a319d2cc7569662baf 100644
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--- a/src/main/java/net/minecraft/server/WorldGenStronghold.java
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+++ b/src/main/java/net/minecraft/server/WorldGenStronghold.java
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@@ -10,10 +10,12 @@ import javax.annotation.Nullable;
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public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyConfiguration> {
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+ /* // Paper start - no shared state
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private boolean a;
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private ChunkCoordIntPair[] aq;
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private final List<StructureStart> ar = Lists.newArrayList();
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private long as;
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+ */
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public WorldGenStronghold(Function<Dynamic<?>, ? extends WorldGenFeatureEmptyConfiguration> function) {
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super(function);
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@@ -21,16 +23,22 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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@Override
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public boolean a(BiomeManager biomemanager, ChunkGenerator<?> chunkgenerator, Random random, int i, int j, BiomeBase biomebase) {
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+ // Paper start
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+ /*
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if (this.as != chunkgenerator.getSeed()) {
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this.d();
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}
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+ */
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+ final World world = chunkgenerator.getWorld();
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- if (!this.a) {
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+ synchronized (world.stuctureLock) {
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+ if ( world.strongholdCoords == null) {
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this.a(chunkgenerator);
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- this.a = true;
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- }
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+ // this.a = true;
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+ }}
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+ // Paper end
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- ChunkCoordIntPair[] achunkcoordintpair = this.aq;
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+ ChunkCoordIntPair[] achunkcoordintpair = world.strongholdCoords; // Paper
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int k = achunkcoordintpair.length;
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for (int l = 0; l < k; ++l) {
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@@ -45,9 +53,11 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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}
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private void d() {
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+ /* // Paper
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this.a = false;
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this.aq = null;
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this.ar.clear();
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+ */ // Paper
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}
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@Override
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@@ -65,25 +75,32 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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return 8;
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}
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+
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@Nullable
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@Override
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public synchronized BlockPosition getNearestGeneratedFeature(World world, ChunkGenerator<? extends GeneratorSettingsDefault> chunkgenerator, BlockPosition blockposition, int i, boolean flag) {
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if (!chunkgenerator.getWorldChunkManager().a(this)) {
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return null;
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} else {
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+ // Paper start - no shared state
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+ /*
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if (this.as != world.getSeed()) {
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this.d();
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}
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+ */
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- if (!this.a) {
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- this.a(chunkgenerator);
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- this.a = true;
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+ synchronized (world.stuctureLock) {
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+ if ( world.strongholdCoords == null) {
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+ this.a(chunkgenerator);
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+ //this.a = true;
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+ }
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}
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+ // Paper end
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BlockPosition blockposition1 = null;
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BlockPosition.MutableBlockPosition blockposition_mutableblockposition = new BlockPosition.MutableBlockPosition();
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double d0 = Double.MAX_VALUE;
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- ChunkCoordIntPair[] achunkcoordintpair = this.aq;
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+ ChunkCoordIntPair[] achunkcoordintpair = world.strongholdCoords; // Paper
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int j = achunkcoordintpair.length;
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for (int k = 0; k < j; ++k) {
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@@ -106,7 +123,7 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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}
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private void a(ChunkGenerator<?> chunkgenerator) {
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- this.as = chunkgenerator.getSeed();
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+ //this.as = chunkgenerator.getSeed(); // Paper
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List<BiomeBase> list = Lists.newArrayList();
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Iterator iterator = IRegistry.BIOME.iterator();
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@@ -122,15 +139,15 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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int j = chunkgenerator.getSettings().f();
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int k = chunkgenerator.getSettings().g();
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- this.aq = new ChunkCoordIntPair[j];
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+ ChunkCoordIntPair[] strongholdCoords = chunkgenerator.getWorld().strongholdCoords = new ChunkCoordIntPair[j]; // Paper
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int l = 0;
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- Iterator iterator1 = this.ar.iterator();
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+ Iterator iterator1 = chunkgenerator.getWorld().strongholdStuctures.iterator(); // Paper
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while (iterator1.hasNext()) {
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StructureStart structurestart = (StructureStart) iterator1.next();
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- if (l < this.aq.length) {
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- this.aq[l++] = new ChunkCoordIntPair(structurestart.f(), structurestart.g());
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+ if (l < strongholdCoords.length) { // Paper
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+ strongholdCoords[l++] = new ChunkCoordIntPair(structurestart.f(), structurestart.g()); // Paper
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}
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}
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@@ -140,11 +157,11 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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double d0 = random.nextDouble() * 3.141592653589793D * 2.0D;
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int i1 = l;
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- if (l < this.aq.length) {
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+ if (l < strongholdCoords.length) { // Paper
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int j1 = 0;
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int k1 = 0;
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- for (int l1 = 0; l1 < this.aq.length; ++l1) {
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+ for (int l1 = 0; l1 < strongholdCoords.length; ++l1) { // Paper
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double d1 = (double) (4 * i + i * k1 * 6) + (random.nextDouble() - 0.5D) * (double) i * 2.5D;
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int i2 = (int) Math.round(Math.cos(d0) * d1);
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int j2 = (int) Math.round(Math.sin(d0) * d1);
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@@ -156,7 +173,7 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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}
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if (l1 >= i1) {
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- this.aq[l1] = new ChunkCoordIntPair(i2, j2);
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+ strongholdCoords[l1] = new ChunkCoordIntPair(i2, j2); // Paper
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}
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d0 += 6.283185307179586D / (double) k;
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@@ -165,7 +182,7 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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++k1;
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j1 = 0;
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k += 2 * k / (k1 + 1);
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- k = Math.min(k, this.aq.length - l1);
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+ k = Math.min(k, strongholdCoords.length - l1); // Paper
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d0 += random.nextDouble() * 3.141592653589793D * 2.0D;
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}
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}
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@@ -207,7 +224,7 @@ public class WorldGenStronghold extends StructureGenerator<WorldGenFeatureEmptyC
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this.a(chunkgenerator.getSeaLevel(), this.d, 10);
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} while (this.b.isEmpty() || worldgenstrongholdpieces_worldgenstrongholdstart.b == null);
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- ((WorldGenStronghold) this.l()).ar.add(this);
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+ chunkgenerator.getWorld().strongholdStuctures.add(this); // Paper - this worries me, this is never cleared, even in vanilla (world seed never changes "world", and that appears to be the only relevant world)
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}
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}
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}
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