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https://github.com/PaperMC/Paper.git
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36f34f01c0
Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: da9ef3c5 #496: Add methods to get/set ItemStacks in EquipmentSlots 3abebc9f #492: Let Tameable extend Animals rather than Entity 941111a0 #495: Expose ItemStack and hand used in PlayerShearEntityEvent 4fe19cae #494: InventoryView - Add missing Brewing FUEL_TIME CraftBukkit Changes:933e9094#664: Add methods to get/set ItemStacks in EquipmentSlots18722312#662: Expose ItemStack and hand used in PlayerShearEntityEvent
224 lines
9.9 KiB
Diff
224 lines
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 983bc1c7d9c0745b34fac8afc27ed8a275c0ad78..8cf3c10274b8320bf1938b95dd9f447deeb2c4d0 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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