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85fb00152a
Paper/Spigot-Server-Patches/0004-MC-Utils.patch
Aikar 57dd397155
Updated Upstream (Bukkit/CraftBukkit) 
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:
b999860d SPIGOT-2304: Add LootGenerateEvent

CraftBukkit Changes:
77fd87e4 SPIGOT-2304: Implement LootGenerateEvent
a1a705ee SPIGOT-5566: Doused campfires & fires should call EntityChangeBlockEvent
41712edd SPIGOT-5707: PersistentDataHolder not Persistent on API dropped Item
2020-05-01 18:03:57 -04:00

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From b2436021374f61062a581239cc1a3500edd54bb4 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 28 Mar 2016 20:55:47 -0400
Subject: [PATCH] MC Utils
diff --git a/src/main/java/com/destroystokyo/paper/util/concurrent/WeakSeqLock.java b/src/main/java/com/destroystokyo/paper/util/concurrent/WeakSeqLock.java
new file mode 100644
index 0000000000..4029dc68cf
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/concurrent/WeakSeqLock.java
@@ -0,0 +1,68 @@
+package com.destroystokyo.paper.util.concurrent;
+
+import java.util.concurrent.atomic.AtomicLong;
+
+/**
+ * copied from https://github.com/Spottedleaf/ConcurrentUtil/blob/master/src/main/java/ca/spottedleaf/concurrentutil/lock/WeakSeqLock.java
+ * @author Spottedleaf
+ */
+public final class WeakSeqLock {
+ // TODO when the switch to J11 is made, nuke this class from orbit
+
+ protected final AtomicLong lock = new AtomicLong();
+
+ public WeakSeqLock() {
+ //VarHandle.storeStoreFence(); // warn: usages must be checked to ensure this behaviour isn't needed
+ }
+
+ public void acquireWrite() {
+ // must be release-type write
+ this.lock.lazySet(this.lock.get() + 1);
+ }
+
+ public boolean canRead(final long read) {
+ return (read & 1) == 0;
+ }
+
+ public boolean tryAcquireWrite() {
+ this.acquireWrite();
+ return true;
+ }
+
+ public void releaseWrite() {
+ // must be acquire-type write
+ final long lock = this.lock.get(); // volatile here acts as store-store
+ this.lock.lazySet(lock + 1);
+ }
+
+ public void abortWrite() {
+ // must be acquire-type write
+ final long lock = this.lock.get(); // volatile here acts as store-store
+ this.lock.lazySet(lock ^ 1);
+ }
+
+ public long acquireRead() {
+ int failures = 0;
+ long curr;
+
+ for (curr = this.lock.get(); !this.canRead(curr); curr = this.lock.get()) {
+ // without j11, our only backoff is the yield() call...
+
+ if (++failures > 5_000) { /* TODO determine a threshold */
+ Thread.yield();
+ }
+ /* Better waiting is beyond the scope of this lock; if it is needed the lock is being misused */
+ }
+
+ //VarHandle.loadLoadFence(); // volatile acts as the load-load barrier
+ return curr;
+ }
+
+ public boolean tryReleaseRead(final long read) {
+ return this.lock.get() == read; // volatile acts as the load-load barrier
+ }
+
+ public long getSequentialCounter() {
+ return this.lock.get();
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/map/QueuedChangesMapLong2Int.java b/src/main/java/com/destroystokyo/paper/util/map/QueuedChangesMapLong2Int.java
new file mode 100644
index 0000000000..59868f37d1
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/map/QueuedChangesMapLong2Int.java
@@ -0,0 +1,162 @@
+package com.destroystokyo.paper.util.map;
+
+import com.destroystokyo.paper.util.concurrent.WeakSeqLock;
+import it.unimi.dsi.fastutil.longs.Long2IntMap;
+import it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap;
+import it.unimi.dsi.fastutil.longs.LongIterator;
+import it.unimi.dsi.fastutil.longs.LongOpenHashSet;
+import it.unimi.dsi.fastutil.objects.ObjectIterator;
+
+/**
+ * @author Spottedleaf
+ */
+public class QueuedChangesMapLong2Int {
+
+ protected final Long2IntOpenHashMap updatingMap;
+ protected final Long2IntOpenHashMap visibleMap;
+ protected final Long2IntOpenHashMap queuedPuts;
+ protected final LongOpenHashSet queuedRemove;
+
+ protected int queuedDefaultReturnValue;
+
+ // we use a seqlock as writes are not common.
+ protected final WeakSeqLock updatingMapSeqLock = new WeakSeqLock();
+
+ public QueuedChangesMapLong2Int() {
+ this(16, 0.75f);
+ }
+
+ public QueuedChangesMapLong2Int(final int capacity, final float loadFactor) {
+ this.updatingMap = new Long2IntOpenHashMap(capacity, loadFactor);
+ this.visibleMap = new Long2IntOpenHashMap(capacity, loadFactor);
+ this.queuedPuts = new Long2IntOpenHashMap();
+ this.queuedRemove = new LongOpenHashSet();
+ }
+
+ public void queueDefaultReturnValue(final int dfl) {
+ this.queuedDefaultReturnValue = dfl;
+ this.updatingMap.defaultReturnValue(dfl);
+ }
+
+ public int queueUpdate(final long k, final int v) {
+ this.queuedRemove.remove(k);
+ this.queuedPuts.put(k, v);
+
+ return this.updatingMap.put(k, v);
+ }
+
+ public int queueRemove(final long k) {
+ this.queuedPuts.remove(k);
+ this.queuedRemove.add(k);
+
+ return this.updatingMap.remove(k);
+ }
+
+ public int getUpdating(final long k) {
+ return this.updatingMap.get(k);
+ }
+
+ public int getVisible(final long k) {
+ return this.visibleMap.get(k);
+ }
+
+ public int getVisibleAsync(final long k) {
+ long readlock;
+ int ret = 0;
+
+ do {
+ readlock = this.updatingMapSeqLock.acquireRead();
+ try {
+ ret = this.visibleMap.get(k);
+ } catch (final Throwable thr) {
+ if (thr instanceof ThreadDeath) {
+ throw (ThreadDeath)thr;
+ }
+ // ignore...
+ continue;
+ }
+
+ } while (!this.updatingMapSeqLock.tryReleaseRead(readlock));
+
+ return ret;
+ }
+
+ public boolean performUpdates() {
+ this.updatingMapSeqLock.acquireWrite();
+ this.visibleMap.defaultReturnValue(this.queuedDefaultReturnValue);
+ this.updatingMapSeqLock.releaseWrite();
+
+ if (this.queuedPuts.isEmpty() && this.queuedRemove.isEmpty()) {
+ return false;
+ }
+
+ // update puts
+ final ObjectIterator<Long2IntMap.Entry> iterator0 = this.queuedPuts.long2IntEntrySet().fastIterator();
+ while (iterator0.hasNext()) {
+ final Long2IntMap.Entry entry = iterator0.next();
+ final long key = entry.getLongKey();
+ final int val = entry.getIntValue();
+
+ this.updatingMapSeqLock.acquireWrite();
+ try {
+ this.visibleMap.put(key, val);
+ } finally {
+ this.updatingMapSeqLock.releaseWrite();
+ }
+ }
+
+ this.queuedPuts.clear();
+
+ final LongIterator iterator1 = this.queuedRemove.iterator();
+ while (iterator1.hasNext()) {
+ final long key = iterator1.nextLong();
+
+ this.updatingMapSeqLock.acquireWrite();
+ try {
+ this.visibleMap.remove(key);
+ } finally {
+ this.updatingMapSeqLock.releaseWrite();
+ }
+ }
+
+ this.queuedRemove.clear();
+
+ return true;
+ }
+
+ public boolean performUpdatesLockMap() {
+ this.updatingMapSeqLock.acquireWrite();
+ try {
+ this.visibleMap.defaultReturnValue(this.queuedDefaultReturnValue);
+
+ if (this.queuedPuts.isEmpty() && this.queuedRemove.isEmpty()) {
+ return false;
+ }
+
+ // update puts
+ final ObjectIterator<Long2IntMap.Entry> iterator0 = this.queuedPuts.long2IntEntrySet().fastIterator();
+ while (iterator0.hasNext()) {
+ final Long2IntMap.Entry entry = iterator0.next();
+ final long key = entry.getLongKey();
+ final int val = entry.getIntValue();
+
+ this.visibleMap.put(key, val);
+ }
+
+ this.queuedPuts.clear();
+
+ final LongIterator iterator1 = this.queuedRemove.iterator();
+ while (iterator1.hasNext()) {
+ final long key = iterator1.nextLong();
+
+ this.visibleMap.remove(key);
+ }
+
+ this.queuedRemove.clear();
+
+ return true;
+ } finally {
+ this.updatingMapSeqLock.releaseWrite();
+ }
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/map/QueuedChangesMapLong2Object.java b/src/main/java/com/destroystokyo/paper/util/map/QueuedChangesMapLong2Object.java
new file mode 100644
index 0000000000..07685b6bd5
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/map/QueuedChangesMapLong2Object.java
@@ -0,0 +1,172 @@
+package com.destroystokyo.paper.util.map;
+
+import com.destroystokyo.paper.util.concurrent.WeakSeqLock;
+import it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap;
+import it.unimi.dsi.fastutil.longs.Long2ObjectMap;
+import it.unimi.dsi.fastutil.objects.ObjectBidirectionalIterator;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * @author Spottedleaf
+ */
+public class QueuedChangesMapLong2Object<V> {
+
+ protected static final Object REMOVED = new Object();
+
+ protected final Long2ObjectLinkedOpenHashMap<V> updatingMap;
+ protected final Long2ObjectLinkedOpenHashMap<V> visibleMap;
+ protected final Long2ObjectLinkedOpenHashMap<Object> queuedChanges;
+
+ // we use a seqlock as writes are not common.
+ protected final WeakSeqLock updatingMapSeqLock = new WeakSeqLock();
+
+ public QueuedChangesMapLong2Object() {
+ this(16, 0.75f); // dfl for fastutil
+ }
+
+ public QueuedChangesMapLong2Object(final int capacity, final float loadFactor) {
+ this.updatingMap = new Long2ObjectLinkedOpenHashMap<>(capacity, loadFactor);
+ this.visibleMap = new Long2ObjectLinkedOpenHashMap<>(capacity, loadFactor);
+ this.queuedChanges = new Long2ObjectLinkedOpenHashMap<>();
+ }
+
+ public V queueUpdate(final long k, final V value) {
+ this.queuedChanges.put(k, value);
+ return this.updatingMap.put(k, value);
+ }
+
+ public V queueRemove(final long k) {
+ this.queuedChanges.put(k, REMOVED);
+ return this.updatingMap.remove(k);
+ }
+
+ public V getUpdating(final long k) {
+ return this.updatingMap.get(k);
+ }
+
+ public V getVisible(final long k) {
+ return this.visibleMap.get(k);
+ }
+
+ public V getVisibleAsync(final long k) {
+ long readlock;
+ V ret = null;
+
+ do {
+ readlock = this.updatingMapSeqLock.acquireRead();
+
+ try {
+ ret = this.visibleMap.get(k);
+ } catch (final Throwable thr) {
+ if (thr instanceof ThreadDeath) {
+ throw (ThreadDeath)thr;
+ }
+ // ignore...
+ continue;
+ }
+
+ } while (!this.updatingMapSeqLock.tryReleaseRead(readlock));
+
+ return ret;
+ }
+
+ public Long2ObjectLinkedOpenHashMap<V> getVisibleMap() {
+ return this.visibleMap;
+ }
+
+ public Long2ObjectLinkedOpenHashMap<V> getUpdatingMap() {
+ return this.updatingMap;
+ }
+
+ public int getVisibleSize() {
+ return this.visibleMap.size();
+ }
+
+ public int getVisibleSizeAsync() {
+ long readlock;
+ int ret;
+
+ do {
+ readlock = this.updatingMapSeqLock.acquireRead();
+ ret = this.visibleMap.size();
+ } while (!this.updatingMapSeqLock.tryReleaseRead(readlock));
+
+ return ret;
+ }
+
+ // unlike mojang's impl this cannot be used async since it's not a view of an immutable map
+ public Collection<V> getUpdatingValues() {
+ return this.updatingMap.values();
+ }
+
+ public List<V> getUpdatingValuesCopy() {
+ return new ArrayList<>(this.updatingMap.values());
+ }
+
+ // unlike mojang's impl this cannot be used async since it's not a view of an immutable map
+ public Collection<V> getVisibleValues() {
+ return this.visibleMap.values();
+ }
+
+ public List<V> getVisibleValuesCopy() {
+ return new ArrayList<>(this.visibleMap.values());
+ }
+
+ public boolean performUpdates() {
+ if (this.queuedChanges.isEmpty()) {
+ return false;
+ }
+
+ final ObjectBidirectionalIterator<Long2ObjectMap.Entry<Object>> iterator = this.queuedChanges.long2ObjectEntrySet().fastIterator();
+ while (iterator.hasNext()) {
+ final Long2ObjectMap.Entry<Object> entry = iterator.next();
+ final long key = entry.getLongKey();
+ final Object val = entry.getValue();
+
+ this.updatingMapSeqLock.acquireWrite();
+ try {
+ if (val == REMOVED) {
+ this.visibleMap.remove(key);
+ } else {
+ this.visibleMap.put(key, (V)val);
+ }
+ } finally {
+ this.updatingMapSeqLock.releaseWrite();
+ }
+ }
+
+ this.queuedChanges.clear();
+ return true;
+ }
+
+ public boolean performUpdatesLockMap() {
+ if (this.queuedChanges.isEmpty()) {
+ return false;
+ }
+
+ final ObjectBidirectionalIterator<Long2ObjectMap.Entry<Object>> iterator = this.queuedChanges.long2ObjectEntrySet().fastIterator();
+
+ try {
+ this.updatingMapSeqLock.acquireWrite();
+
+ while (iterator.hasNext()) {
+ final Long2ObjectMap.Entry<Object> entry = iterator.next();
+ final long key = entry.getLongKey();
+ final Object val = entry.getValue();
+
+ if (val == REMOVED) {
+ this.visibleMap.remove(key);
+ } else {
+ this.visibleMap.put(key, (V)val);
+ }
+ }
+ } finally {
+ this.updatingMapSeqLock.releaseWrite();
+ }
+
+ this.queuedChanges.clear();
+ return true;
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/maplist/ChunkList.java b/src/main/java/com/destroystokyo/paper/util/maplist/ChunkList.java
new file mode 100644
index 0000000000..4eac057786
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/maplist/ChunkList.java
@@ -0,0 +1,129 @@
+package com.destroystokyo.paper.util.maplist;
+
+import it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap;
+import net.minecraft.server.Chunk;
+import net.minecraft.server.MCUtil;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
+// list with O(1) remove & contains
+/**
+ * @author Spottedleaf
+ */
+public final class ChunkList implements Iterable<Chunk> {
+
+ protected final Long2IntOpenHashMap chunkToIndex = new Long2IntOpenHashMap(2, 0.8f);
+ {
+ this.chunkToIndex.defaultReturnValue(Integer.MIN_VALUE);
+ }
+
+ protected static final Chunk[] EMPTY_LIST = new Chunk[0];
+
+ protected Chunk[] chunks = EMPTY_LIST;
+ protected int count;
+
+ public int size() {
+ return this.count;
+ }
+
+ public boolean contains(final Chunk chunk) {
+ return this.chunkToIndex.containsKey(chunk.coordinateKey);
+ }
+
+ public boolean remove(final Chunk chunk) {
+ final int index = this.chunkToIndex.remove(chunk.coordinateKey);
+ if (index == Integer.MIN_VALUE) {
+ return false;
+ }
+
+ // move the entity at the end to this index
+ final int endIndex = --this.count;
+ final Chunk end = this.chunks[endIndex];
+ if (index != endIndex) {
+ // not empty after this call
+ this.chunkToIndex.put(end.coordinateKey, index); // update index
+ }
+ this.chunks[index] = end;
+ this.chunks[endIndex] = null;
+
+ return true;
+ }
+
+ public boolean add(final Chunk chunk) {
+ final int count = this.count;
+ final int currIndex = this.chunkToIndex.putIfAbsent(chunk.coordinateKey, count);
+
+ if (currIndex != Integer.MIN_VALUE) {
+ return false; // already in this list
+ }
+
+ Chunk[] list = this.chunks;
+
+ if (list.length == count) {
+ // resize required
+ list = this.chunks = Arrays.copyOf(list, (int)Math.max(4L, count * 2L)); // overflow results in negative
+ }
+
+ list[count] = chunk;
+ this.count = count + 1;
+
+ return true;
+ }
+
+ public Chunk getChecked(final int index) {
+ if (index < 0 || index >= this.count) {
+ throw new IndexOutOfBoundsException("Index: " + index + " is out of bounds, size: " + this.count);
+ }
+ return this.chunks[index];
+ }
+
+ public Chunk getUnchecked(final int index) {
+ return this.chunks[index];
+ }
+
+ public Chunk[] getRawData() {
+ return this.chunks;
+ }
+
+ public void clear() {
+ this.chunkToIndex.clear();
+ Arrays.fill(this.chunks, 0, this.count, null);
+ this.count = 0;
+ }
+
+ @Override
+ public Iterator<Chunk> iterator() {
+ return new Iterator<Chunk>() {
+
+ Chunk lastRet;
+ int current;
+
+ @Override
+ public boolean hasNext() {
+ return this.current < ChunkList.this.count;
+ }
+
+ @Override
+ public Chunk next() {
+ if (this.current >= ChunkList.this.count) {
+ throw new NoSuchElementException();
+ }
+ return this.lastRet = ChunkList.this.chunks[this.current++];
+ }
+
+ @Override
+ public void remove() {
+ final Chunk lastRet = this.lastRet;
+
+ if (lastRet == null) {
+ throw new IllegalStateException();
+ }
+ this.lastRet = null;
+
+ ChunkList.this.remove(lastRet);
+ --this.current;
+ }
+ };
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/maplist/EntityList.java b/src/main/java/com/destroystokyo/paper/util/maplist/EntityList.java
new file mode 100644
index 0000000000..cdda74564c
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/maplist/EntityList.java
@@ -0,0 +1,128 @@
+package com.destroystokyo.paper.util.maplist;
+
+import it.unimi.dsi.fastutil.ints.Int2IntOpenHashMap;
+import net.minecraft.server.Entity;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
+// list with O(1) remove & contains
+/**
+ * @author Spottedleaf
+ */
+public final class EntityList implements Iterable<Entity> {
+
+ protected final Int2IntOpenHashMap entityToIndex = new Int2IntOpenHashMap(2, 0.8f);
+ {
+ this.entityToIndex.defaultReturnValue(Integer.MIN_VALUE);
+ }
+
+ protected static final Entity[] EMPTY_LIST = new Entity[0];
+
+ protected Entity[] entities = EMPTY_LIST;
+ protected int count;
+
+ public int size() {
+ return this.count;
+ }
+
+ public boolean contains(final Entity entity) {
+ return this.entityToIndex.containsKey(entity.getId());
+ }
+
+ public boolean remove(final Entity entity) {
+ final int index = this.entityToIndex.remove(entity.getId());
+ if (index == Integer.MIN_VALUE) {
+ return false;
+ }
+
+ // move the entity at the end to this index
+ final int endIndex = --this.count;
+ final Entity end = this.entities[endIndex];
+ if (index != endIndex) {
+ // not empty after this call
+ this.entityToIndex.put(end.getId(), index); // update index
+ }
+ this.entities[index] = end;
+ this.entities[endIndex] = null;
+
+ return true;
+ }
+
+ public boolean add(final Entity entity) {
+ final int count = this.count;
+ final int currIndex = this.entityToIndex.putIfAbsent(entity.getId(), count);
+
+ if (currIndex != Integer.MIN_VALUE) {
+ return false; // already in this list
+ }
+
+ Entity[] list = this.entities;
+
+ if (list.length == count) {
+ // resize required
+ list = this.entities = Arrays.copyOf(list, (int)Math.max(4L, count * 2L)); // overflow results in negative
+ }
+
+ list[count] = entity;
+ this.count = count + 1;
+
+ return true;
+ }
+
+ public Entity getChecked(final int index) {
+ if (index < 0 || index >= this.count) {
+ throw new IndexOutOfBoundsException("Index: " + index + " is out of bounds, size: " + this.count);
+ }
+ return this.entities[index];
+ }
+
+ public Entity getUnchecked(final int index) {
+ return this.entities[index];
+ }
+
+ public Entity[] getRawData() {
+ return this.entities;
+ }
+
+ public void clear() {
+ this.entityToIndex.clear();
+ Arrays.fill(this.entities, 0, this.count, null);
+ this.count = 0;
+ }
+
+ @Override
+ public Iterator<Entity> iterator() {
+ return new Iterator<Entity>() {
+
+ Entity lastRet;
+ int current;
+
+ @Override
+ public boolean hasNext() {
+ return this.current < EntityList.this.count;
+ }
+
+ @Override
+ public Entity next() {
+ if (this.current >= EntityList.this.count) {
+ throw new NoSuchElementException();
+ }
+ return this.lastRet = EntityList.this.entities[this.current++];
+ }
+
+ @Override
+ public void remove() {
+ final Entity lastRet = this.lastRet;
+
+ if (lastRet == null) {
+ throw new IllegalStateException();
+ }
+ this.lastRet = null;
+
+ EntityList.this.remove(lastRet);
+ --this.current;
+ }
+ };
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/maplist/IBlockDataList.java b/src/main/java/com/destroystokyo/paper/util/maplist/IBlockDataList.java
new file mode 100644
index 0000000000..84ef8d9eca
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/maplist/IBlockDataList.java
@@ -0,0 +1,128 @@
+package com.destroystokyo.paper.util.maplist;
+
+import it.unimi.dsi.fastutil.longs.LongIterator;
+import it.unimi.dsi.fastutil.shorts.Short2LongOpenHashMap;
+import net.minecraft.server.ChunkSection;
+import net.minecraft.server.DataPaletteGlobal;
+import net.minecraft.server.IBlockData;
+import java.util.Arrays;
+
+/**
+ * @author Spottedleaf
+ */
+public final class IBlockDataList {
+
+ static final DataPaletteGlobal<IBlockData> GLOBAL_PALETTE = (DataPaletteGlobal)ChunkSection.GLOBAL_PALETTE;
+
+ // map of location -> (index | (location << 16) | (palette id << 32))
+ private final Short2LongOpenHashMap map = new Short2LongOpenHashMap(2, 0.8f);
+ {
+ this.map.defaultReturnValue(Long.MAX_VALUE);
+ }
+
+ private static final long[] EMPTY_LIST = new long[0];
+
+ private long[] byIndex = EMPTY_LIST;
+ private int size;
+
+ public static int getLocationKey(final int x, final int y, final int z) {
+ return (x & 15) | (((z & 15) << 4)) | ((y & 255) << (4 + 4));
+ }
+
+ public static IBlockData getBlockDataFromRaw(final long raw) {
+ return GLOBAL_PALETTE.getObject((int)(raw >>> 32));
+ }
+
+ public static int getIndexFromRaw(final long raw) {
+ return (int)(raw & 0xFFFF);
+ }
+
+ public static int getLocationFromRaw(final long raw) {
+ return (int)((raw >>> 16) & 0xFFFF);
+ }
+
+ public static long getRawFromValues(final int index, final int location, final IBlockData data) {
+ return (long)index | ((long)location << 16) | (((long)GLOBAL_PALETTE.getOrCreateIdFor(data)) << 32);
+ }
+
+ public static long setIndexRawValues(final long value, final int index) {
+ return value & ~(0xFFFF) | (index);
+ }
+
+ public long add(final int x, final int y, final int z, final IBlockData data) {
+ return this.add(getLocationKey(x, y, z), data);
+ }
+
+ public long add(final int location, final IBlockData data) {
+ final long curr = this.map.get((short)location);
+
+ if (curr == Long.MAX_VALUE) {
+ final int index = this.size++;
+ final long raw = getRawFromValues(index, location, data);
+ this.map.put((short)location, raw);
+
+ if (index >= this.byIndex.length) {
+ this.byIndex = Arrays.copyOf(this.byIndex, (int)Math.max(4L, this.byIndex.length * 2L));
+ }
+
+ this.byIndex[index] = raw;
+ return raw;
+ } else {
+ final int index = getIndexFromRaw(curr);
+ final long raw = this.byIndex[index] = getRawFromValues(index, location, data);
+
+ this.map.put((short)location, raw);
+
+ return raw;
+ }
+ }
+
+ public long remove(final int x, final int y, final int z) {
+ return this.remove(getLocationKey(x, y, z));
+ }
+
+ public long remove(final int location) {
+ final long ret = this.map.remove((short)location);
+ final int index = getIndexFromRaw(ret);
+ if (ret == Long.MAX_VALUE) {
+ return ret;
+ }
+
+ // move the entry at the end to this index
+ final int endIndex = --this.size;
+ final long end = this.byIndex[endIndex];
+ if (index != endIndex) {
+ // not empty after this call
+ this.map.put((short)getLocationFromRaw(end), setIndexRawValues(end, index));
+ }
+ this.byIndex[index] = end;
+ this.byIndex[endIndex] = 0L;
+
+ return ret;
+ }
+
+ public int size() {
+ return this.size;
+ }
+
+ public long getRaw(final int index) {
+ return this.byIndex[index];
+ }
+
+ public int getLocation(final int index) {
+ return getLocationFromRaw(this.getRaw(index));
+ }
+
+ public IBlockData getData(final int index) {
+ return getBlockDataFromRaw(this.getRaw(index));
+ }
+
+ public void clear() {
+ this.size = 0;
+ this.map.clear();
+ }
+
+ public LongIterator getRawIterator() {
+ return this.map.values().iterator();
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/math/IntegerUtil.java b/src/main/java/com/destroystokyo/paper/util/math/IntegerUtil.java
new file mode 100644
index 0000000000..c3b936f54b
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/math/IntegerUtil.java
@@ -0,0 +1,230 @@
+package com.destroystokyo.paper.util.math;
+
+/**
+ * @author Spottedleaf <Spottedleaf@users.noreply.github.com>
+ */
+public final class IntegerUtil {
+
+ public static final int HIGH_BIT_U32 = Integer.MIN_VALUE;
+ public static final long HIGH_BIT_U64 = Long.MIN_VALUE;
+
+ public static int ceilLog2(final int value) {
+ return Integer.SIZE - Integer.numberOfLeadingZeros(value - 1); // see doc of numberOfLeadingZeros
+ }
+
+ public static long ceilLog2(final long value) {
+ return Long.SIZE - Long.numberOfLeadingZeros(value - 1); // see doc of numberOfLeadingZeros
+ }
+
+ public static int floorLog2(final int value) {
+ // xor is optimized subtract for 2^n -1
+ // note that (2^n -1) - k = (2^n -1) ^ k for k <= (2^n - 1)
+ return (Integer.SIZE - 1) ^ Integer.numberOfLeadingZeros(value); // see doc of numberOfLeadingZeros
+ }
+
+ public static int floorLog2(final long value) {
+ // xor is optimized subtract for 2^n -1
+ // note that (2^n -1) - k = (2^n -1) ^ k for k <= (2^n - 1)
+ return (Long.SIZE - 1) ^ Long.numberOfLeadingZeros(value); // see doc of numberOfLeadingZeros
+ }
+
+ public static int roundCeilLog2(final int value) {
+ // optimized variant of 1 << (32 - leading(val - 1))
+ // given
+ // 1 << n = HIGH_BIT_32 >>> (31 - n) for n [0, 32)
+ // 1 << (32 - leading(val - 1)) = HIGH_BIT_32 >>> (31 - (32 - leading(val - 1)))
+ // HIGH_BIT_32 >>> (31 - (32 - leading(val - 1)))
+ // HIGH_BIT_32 >>> (31 - 32 + leading(val - 1))
+ // HIGH_BIT_32 >>> (-1 + leading(val - 1))
+ return HIGH_BIT_U32 >>> (Integer.numberOfLeadingZeros(value - 1) - 1);
+ }
+
+ public static long roundCeilLog2(final long value) {
+ // see logic documented above
+ return HIGH_BIT_U64 >>> (Long.numberOfLeadingZeros(value - 1) - 1);
+ }
+
+ public static int roundFloorLog2(final int value) {
+ // optimized variant of 1 << (31 - leading(val))
+ // given
+ // 1 << n = HIGH_BIT_32 >>> (31 - n) for n [0, 32)
+ // 1 << (31 - leading(val)) = HIGH_BIT_32 >> (31 - (31 - leading(val)))
+ // HIGH_BIT_32 >> (31 - (31 - leading(val)))
+ // HIGH_BIT_32 >> (31 - 31 + leading(val))
+ return HIGH_BIT_U32 >>> Integer.numberOfLeadingZeros(value);
+ }
+
+ public static long roundFloorLog2(final long value) {
+ // see logic documented above
+ return HIGH_BIT_U64 >>> Long.numberOfLeadingZeros(value);
+ }
+
+ public static boolean isPowerOfTwo(final int n) {
+ // 2^n has one bit
+ // note: this rets true for 0 still
+ return IntegerUtil.getTrailingBit(n) == n;
+ }
+
+ public static boolean isPowerOfTwo(final long n) {
+ // 2^n has one bit
+ // note: this rets true for 0 still
+ return IntegerUtil.getTrailingBit(n) == n;
+ }
+
+
+ public static int getTrailingBit(final int n) {
+ return -n & n;
+ }
+
+ public static long getTrailingBit(final long n) {
+ return -n & n;
+ }
+
+ public static int trailingZeros(final int n) {
+ return Integer.numberOfTrailingZeros(n);
+ }
+
+ public static long trailingZeros(final long n) {
+ return Long.numberOfTrailingZeros(n);
+ }
+
+ // from hacker's delight (signed division magic value)
+ public static int getDivisorMultiple(final long numbers) {
+ return (int)(numbers >>> 32);
+ }
+
+ // from hacker's delight (signed division magic value)
+ public static int getDivisorShift(final long numbers) {
+ return (int)numbers;
+ }
+
+ // copied from hacker's delight (signed division magic value)
+ // http://www.hackersdelight.org/hdcodetxt/magic.c.txt
+ public static long getDivisorNumbers(final int d) {
+ final int ad = IntegerUtil.branchlessAbs(d);
+
+ if (ad < 2) {
+ throw new IllegalArgumentException("|number| must be in [2, 2^31 -1], not: " + d);
+ }
+
+ final int two31 = 0x80000000;
+ final long mask = 0xFFFFFFFFL; // mask for enforcing unsigned behaviour
+
+ int p = 31;
+
+ // all these variables are UNSIGNED!
+ int t = two31 + (d >>> 31);
+ int anc = t - 1 - t%ad;
+ int q1 = (int)((two31 & mask)/(anc & mask));
+ int r1 = two31 - q1*anc;
+ int q2 = (int)((two31 & mask)/(ad & mask));
+ int r2 = two31 - q2*ad;
+ int delta;
+
+ do {
+ p = p + 1;
+ q1 = 2*q1; // Update q1 = 2**p/|nc|.
+ r1 = 2*r1; // Update r1 = rem(2**p, |nc|).
+ if ((r1 & mask) >= (anc & mask)) {// (Must be an unsigned comparison here)
+ q1 = q1 + 1;
+ r1 = r1 - anc;
+ }
+ q2 = 2*q2; // Update q2 = 2**p/|d|.
+ r2 = 2*r2; // Update r2 = rem(2**p, |d|).
+ if ((r2 & mask) >= (ad & mask)) {// (Must be an unsigned comparison here)
+ q2 = q2 + 1;
+ r2 = r2 - ad;
+ }
+ delta = ad - r2;
+ } while ((q1 & mask) < (delta & mask) || (q1 == delta && r1 == 0));
+
+ int magicNum = q2 + 1;
+ if (d < 0) {
+ magicNum = -magicNum;
+ }
+ int shift = p - 32;
+ return ((long)magicNum << 32) | shift;
+ }
+
+ public static int branchlessAbs(final int val) {
+ // -n = -1 ^ n + 1
+ final int mask = val >> (Integer.SIZE - 1); // -1 if < 0, 0 if >= 0
+ return (mask ^ val) - mask; // if val < 0, then (0 ^ val) - 0 else (-1 ^ val) + 1
+ }
+
+ public static long branchlessAbs(final long val) {
+ // -n = -1 ^ n + 1
+ final long mask = val >> (Long.SIZE - 1); // -1 if < 0, 0 if >= 0
+ return (mask ^ val) - mask; // if val < 0, then (0 ^ val) - 0 else (-1 ^ val) + 1
+ }
+
+ //https://github.com/skeeto/hash-prospector for hash functions
+
+ //score = ~590.47984224483832
+ public static int hash0(int x) {
+ x *= 0x36935555;
+ x ^= x >>> 16;
+ return x;
+ }
+
+ //score = ~310.01596637036749
+ public static int hash1(int x) {
+ x ^= x >>> 15;
+ x *= 0x356aaaad;
+ x ^= x >>> 17;
+ return x;
+ }
+
+ public static int hash2(int x) {
+ x ^= x >>> 16;
+ x *= 0x7feb352d;
+ x ^= x >>> 15;
+ x *= 0x846ca68b;
+ x ^= x >>> 16;
+ return x;
+ }
+
+ public static int hash3(int x) {
+ x ^= x >>> 17;
+ x *= 0xed5ad4bb;
+ x ^= x >>> 11;
+ x *= 0xac4c1b51;
+ x ^= x >>> 15;
+ x *= 0x31848bab;
+ x ^= x >>> 14;
+ return x;
+ }
+
+ //score = ~365.79959673201887
+ public static long hash1(long x) {
+ x ^= x >>> 27;
+ x *= 0xb24924b71d2d354bL;
+ x ^= x >>> 28;
+ return x;
+ }
+
+ //h2 hash
+ public static long hash2(long x) {
+ x ^= x >>> 32;
+ x *= 0xd6e8feb86659fd93L;
+ x ^= x >>> 32;
+ x *= 0xd6e8feb86659fd93L;
+ x ^= x >>> 32;
+ return x;
+ }
+
+ public static long hash3(long x) {
+ x ^= x >>> 45;
+ x *= 0xc161abe5704b6c79L;
+ x ^= x >>> 41;
+ x *= 0xe3e5389aedbc90f7L;
+ x ^= x >>> 56;
+ x *= 0x1f9aba75a52db073L;
+ x ^= x >>> 53;
+ return x;
+ }
+
+ private IntegerUtil() {
+ throw new RuntimeException();
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/misc/AreaMap.java b/src/main/java/com/destroystokyo/paper/util/misc/AreaMap.java
new file mode 100644
index 0000000000..f625da9f09
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/misc/AreaMap.java
@@ -0,0 +1,409 @@
+package com.destroystokyo.paper.util.misc;
+
+import com.destroystokyo.paper.util.math.IntegerUtil;
+import it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap;
+import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
+import it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap;
+import it.unimi.dsi.fastutil.objects.Object2LongOpenHashMap;
+import net.minecraft.server.ChunkCoordIntPair;
+import net.minecraft.server.MCUtil;
+import net.minecraft.server.MinecraftServer;
+import javax.annotation.Nullable;
+import java.util.Iterator;
+
+/** @author Spottedleaf */
+public abstract class AreaMap<E> {
+
+ /* Tested via https://gist.github.com/Spottedleaf/520419c6f41ef348fe9926ce674b7217 */
+
+ protected final Object2LongOpenHashMap<E> objectToLastCoordinate = new Object2LongOpenHashMap<>();
+ protected final Object2IntOpenHashMap<E> objectToViewDistance = new Object2IntOpenHashMap<>();
+
+ {
+ this.objectToViewDistance.defaultReturnValue(-1);
+ this.objectToLastCoordinate.defaultReturnValue(Long.MIN_VALUE);
+ }
+
+ // we use linked for better iteration.
+ // map of: coordinate to set of objects in coordinate
+ protected final Long2ObjectOpenHashMap<PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E>> areaMap = new Long2ObjectOpenHashMap<>(1024, 0.7f);
+ protected final PooledLinkedHashSets<E> pooledHashSets;
+
+ protected final ChangeCallback<E> addCallback;
+ protected final ChangeCallback<E> removeCallback;
+
+ public AreaMap() {
+ this(new PooledLinkedHashSets<>());
+ }
+
+ // let users define a "global" or "shared" pooled sets if they wish
+ public AreaMap(final PooledLinkedHashSets<E> pooledHashSets) {
+ this(pooledHashSets, null, null);
+ }
+
+ public AreaMap(final PooledLinkedHashSets<E> pooledHashSets, final ChangeCallback<E> addCallback, final ChangeCallback<E> removeCallback) {
+ this.pooledHashSets = pooledHashSets;
+ this.addCallback = addCallback;
+ this.removeCallback = removeCallback;
+ }
+
+ @Nullable
+ public final PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> getObjectsInRange(final long key) {
+ return this.areaMap.get(key);
+ }
+
+ @Nullable
+ public final PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> getObjectsInRange(final ChunkCoordIntPair chunkPos) {
+ return this.areaMap.get(MCUtil.getCoordinateKey(chunkPos));
+ }
+
+ @Nullable
+ public final PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> getObjectsInRange(final int chunkX, final int chunkZ) {
+ return this.areaMap.get(MCUtil.getCoordinateKey(chunkX, chunkZ));
+ }
+
+ // Long.MIN_VALUE indicates the object is not mapped
+ public final long getLastCoordinate(final E object) {
+ return this.objectToLastCoordinate.getOrDefault(object, Long.MIN_VALUE);
+ }
+
+ // -1 indicates the object is not mapped
+ public final int getLastViewDistance(final E object) {
+ return this.objectToViewDistance.getOrDefault(object, -1);
+ }
+
+ // returns the total number of mapped chunks
+ public final int size() {
+ return this.areaMap.size();
+ }
+
+ public final void update(final E object, final int chunkX, final int chunkZ, final int viewDistance) {
+ final int oldViewDistance = this.objectToViewDistance.put(object, viewDistance);
+ final long newPos = MCUtil.getCoordinateKey(chunkX, chunkZ);
+ if (oldViewDistance == -1) {
+ this.objectToLastCoordinate.put(object, newPos);
+ this.addObject(object, chunkX, chunkZ, Integer.MIN_VALUE, Integer.MIN_VALUE, viewDistance);
+ this.addObjectCallback(object, chunkX, chunkZ, viewDistance);
+ } else {
+ final long oldPos = this.objectToLastCoordinate.put(object, newPos);
+ this.updateObject(object, oldPos, newPos, oldViewDistance, viewDistance);
+ this.updateObjectCallback(object, oldPos, newPos, oldViewDistance, viewDistance);
+ }
+ //this.validate(object, viewDistance);
+ }
+
+ // called after the distance map updates
+ protected void addObjectCallback(final E object, final int chunkX, final int chunkZ, final int viewDistance) {}
+
+ // called after the distance map updates
+ protected void updateObjectCallback(final E Object, final long oldPosition, final long newPosition, final int oldViewDistance, final int newViewDistance) {}
+
+ public final boolean remove(final E object) {
+ final long position = this.objectToLastCoordinate.removeLong(object);
+ final int viewDistance = this.objectToViewDistance.removeInt(object);
+
+ if (viewDistance == -1) {
+ return false;
+ }
+
+ final int currentX = MCUtil.getCoordinateX(position);
+ final int currentZ = MCUtil.getCoordinateZ(position);
+
+ this.removeObject(object, currentX, currentZ, currentX, currentZ, viewDistance);
+ this.removeObjectCallback(object, currentX, currentZ, viewDistance);
+ //this.validate(object, -1);
+ return true;
+ }
+
+ // called after the distance map updates
+ protected void removeObjectCallback(final E object, final int chunkX, final int chunkZ, final int viewDistance) {}
+
+ protected abstract PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> getEmptySetFor(final E object);
+
+ // expensive op, only for debug
+ protected void validate(final E object, final int viewDistance) {
+ int entiesGot = 0;
+ int expectedEntries = (2 * viewDistance + 1);
+ expectedEntries *= expectedEntries;
+ if (viewDistance < 0) {
+ expectedEntries = 0;
+ }
+
+ final long currPosition = this.objectToLastCoordinate.getLong(object);
+
+ final int centerX = MCUtil.getCoordinateX(currPosition);
+ final int centerZ = MCUtil.getCoordinateZ(currPosition);
+
+ for (Iterator<Long2ObjectLinkedOpenHashMap.Entry<PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E>>> iterator = this.areaMap.long2ObjectEntrySet().fastIterator();
+ iterator.hasNext();) {
+
+ final Long2ObjectLinkedOpenHashMap.Entry<PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E>> entry = iterator.next();
+ final long key = entry.getLongKey();
+ final PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> map = entry.getValue();
+
+ if (map.referenceCount == 0) {
+ throw new IllegalStateException("Invalid map");
+ }
+
+ if (map.contains(object)) {
+ ++entiesGot;
+
+ final int chunkX = MCUtil.getCoordinateX(key);
+ final int chunkZ = MCUtil.getCoordinateZ(key);
+
+ final int dist = Math.max(IntegerUtil.branchlessAbs(chunkX - centerX), IntegerUtil.branchlessAbs(chunkZ - centerZ));
+
+ if (dist > viewDistance) {
+ throw new IllegalStateException("Expected view distance " + viewDistance + ", got " + dist);
+ }
+ }
+ }
+
+ if (entiesGot != expectedEntries) {
+ throw new IllegalStateException("Expected " + expectedEntries + ", got " + entiesGot);
+ }
+ }
+
+ private void addObjectTo(final E object, final int chunkX, final int chunkZ, final int currChunkX,
+ final int currChunkZ, final int prevChunkX, final int prevChunkZ) {
+ final long key = MCUtil.getCoordinateKey(chunkX, chunkZ);
+
+ PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> empty = this.getEmptySetFor(object);
+ PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> current = this.areaMap.putIfAbsent(key, empty);
+
+ if (current != null) {
+ PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> next = this.pooledHashSets.findMapWith(current, object);
+ if (next == current) {
+ throw new IllegalStateException("Expected different map: got " + next.toString());
+ }
+ this.areaMap.put(key, next);
+
+ current = next;
+ // fall through to callback
+ } else {
+ current = empty;
+ }
+
+ if (this.addCallback != null) {
+ try {
+ this.addCallback.accept(object, chunkX, chunkZ, currChunkX, currChunkZ, prevChunkX, prevChunkZ, current);
+ } catch (final Throwable ex) {
+ if (ex instanceof ThreadDeath) {
+ throw (ThreadDeath)ex;
+ }
+ MinecraftServer.LOGGER.error("Add callback for map threw exception ", ex);
+ }
+ }
+ }
+
+ private void removeObjectFrom(final E object, final int chunkX, final int chunkZ, final int currChunkX,
+ final int currChunkZ, final int prevChunkX, final int prevChunkZ) {
+ final long key = MCUtil.getCoordinateKey(chunkX, chunkZ);
+
+ PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> current = this.areaMap.get(key);
+
+ if (current == null) {
+ throw new IllegalStateException("Current map may not be null for " + object + ", (" + chunkX + "," + chunkZ + ")");
+ }
+
+ PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> next = this.pooledHashSets.findMapWithout(current, object);
+
+ if (next == current) {
+ throw new IllegalStateException("Current map [" + next.toString() + "] should have contained " + object + ", (" + chunkX + "," + chunkZ + ")");
+ }
+
+ if (next != null) {
+ this.areaMap.put(key, next);
+ } else {
+ this.areaMap.remove(key);
+ }
+
+ if (this.removeCallback != null) {
+ try {
+ this.removeCallback.accept(object, chunkX, chunkZ, currChunkX, currChunkZ, prevChunkX, prevChunkZ, next);
+ } catch (final Throwable ex) {
+ if (ex instanceof ThreadDeath) {
+ throw (ThreadDeath)ex;
+ }
+ MinecraftServer.LOGGER.error("Remove callback for map threw exception ", ex);
+ }
+ }
+ }
+
+ private void addObject(final E object, final int chunkX, final int chunkZ, final int prevChunkX, final int prevChunkZ, final int viewDistance) {
+ final int maxX = chunkX + viewDistance;
+ final int maxZ = chunkZ + viewDistance;
+ final int minX = chunkX - viewDistance;
+ final int minZ = chunkZ - viewDistance;
+ for (int x = minX; x <= maxX; ++x) {
+ for (int z = minZ; z <= maxZ; ++z) {
+ this.addObjectTo(object, x, z, chunkX, chunkZ, prevChunkX, prevChunkZ);
+ }
+ }
+ }
+
+ private void removeObject(final E object, final int chunkX, final int chunkZ, final int currentChunkX, final int currentChunkZ, final int viewDistance) {
+ final int maxX = chunkX + viewDistance;
+ final int maxZ = chunkZ + viewDistance;
+ final int minX = chunkX - viewDistance;
+ final int minZ = chunkZ - viewDistance;
+ for (int x = minX; x <= maxX; ++x) {
+ for (int z = minZ; z <= maxZ; ++z) {
+ this.removeObjectFrom(object, x, z, currentChunkX, currentChunkZ, chunkX, chunkZ);
+ }
+ }
+ }
+
+ /* math sign function except 0 returns 1 */
+ protected static int sign(int val) {
+ return 1 | (val >> (Integer.SIZE - 1));
+ }
+
+ private void updateObject(final E object, final long oldPosition, final long newPosition, final int oldViewDistance, final int newViewDistance) {
+ final int toX = MCUtil.getCoordinateX(newPosition);
+ final int toZ = MCUtil.getCoordinateZ(newPosition);
+ final int fromX = MCUtil.getCoordinateX(oldPosition);
+ final int fromZ = MCUtil.getCoordinateZ(oldPosition);
+
+ final int dx = toX - fromX;
+ final int dz = toZ - fromZ;
+
+ final int totalX = IntegerUtil.branchlessAbs(fromX - toX);
+ final int totalZ = IntegerUtil.branchlessAbs(fromZ - toZ);
+
+ if (Math.max(totalX, totalZ) > (2 * Math.max(newViewDistance, oldViewDistance))) {
+ // teleported?
+ this.removeObject(object, fromX, fromZ, fromX, fromZ, oldViewDistance);
+ this.addObject(object, toX, toZ, fromX, fromZ, newViewDistance);
+ return;
+ }
+
+ if (oldViewDistance != newViewDistance) {
+ // remove loop
+
+ final int oldMinX = fromX - oldViewDistance;
+ final int oldMinZ = fromZ - oldViewDistance;
+ final int oldMaxX = fromX + oldViewDistance;
+ final int oldMaxZ = fromZ + oldViewDistance;
+ for (int currX = oldMinX; currX <= oldMaxX; ++currX) {
+ for (int currZ = oldMinZ; currZ <= oldMaxZ; ++currZ) {
+
+ // only remove if we're outside the new view distance...
+ if (Math.max(IntegerUtil.branchlessAbs(currX - toX), IntegerUtil.branchlessAbs(currZ - toZ)) > newViewDistance) {
+ this.removeObjectFrom(object, currX, currZ, toX, toZ, fromX, fromZ);
+ }
+ }
+ }
+
+ // add loop
+
+ final int newMinX = toX - newViewDistance;
+ final int newMinZ = toZ - newViewDistance;
+ final int newMaxX = toX + newViewDistance;
+ final int newMaxZ = toZ + newViewDistance;
+ for (int currX = newMinX; currX <= newMaxX; ++currX) {
+ for (int currZ = newMinZ; currZ <= newMaxZ; ++currZ) {
+
+ // only add if we're outside the old view distance...
+ if (Math.max(IntegerUtil.branchlessAbs(currX - fromX), IntegerUtil.branchlessAbs(currZ - fromZ)) > oldViewDistance) {
+ this.addObjectTo(object, currX, currZ, toX, toZ, fromX, fromZ);
+ }
+ }
+ }
+
+ return;
+ }
+
+ // x axis is width
+ // z axis is height
+ // right refers to the x axis of where we moved
+ // top refers to the z axis of where we moved
+
+ // same view distance
+
+ // used for relative positioning
+ final int up = sign(dz); // 1 if dz >= 0, -1 otherwise
+ final int right = sign(dx); // 1 if dx >= 0, -1 otherwise
+
+ // The area excluded by overlapping the two view distance squares creates four rectangles:
+ // Two on the left, and two on the right. The ones on the left we consider the "removed" section
+ // and on the right the "added" section.
+ // https://i.imgur.com/MrnOBgI.png is a reference image. Note that the outside border is not actually
+ // exclusive to the regions they surround.
+
+ // 4 points of the rectangle
+ int maxX; // exclusive
+ int minX; // inclusive
+ int maxZ; // exclusive
+ int minZ; // inclusive
+
+ if (dx != 0) {
+ // handle right addition
+
+ maxX = toX + (oldViewDistance * right) + right; // exclusive
+ minX = fromX + (oldViewDistance * right) + right; // inclusive
+ maxZ = fromZ + (oldViewDistance * up) + up; // exclusive
+ minZ = toZ - (oldViewDistance * up); // inclusive
+
+ for (int currX = minX; currX != maxX; currX += right) {
+ for (int currZ = minZ; currZ != maxZ; currZ += up) {
+ this.addObjectTo(object, currX, currZ, toX, toZ, fromX, fromZ);
+ }
+ }
+ }
+
+ if (dz != 0) {
+ // handle up addition
+
+ maxX = toX + (oldViewDistance * right) + right; // exclusive
+ minX = toX - (oldViewDistance * right); // inclusive
+ maxZ = toZ + (oldViewDistance * up) + up; // exclusive
+ minZ = fromZ + (oldViewDistance * up) + up; // inclusive
+
+ for (int currX = minX; currX != maxX; currX += right) {
+ for (int currZ = minZ; currZ != maxZ; currZ += up) {
+ this.addObjectTo(object, currX, currZ, toX, toZ, fromX, fromZ);
+ }
+ }
+ }
+
+ if (dx != 0) {
+ // handle left removal
+
+ maxX = toX - (oldViewDistance * right); // exclusive
+ minX = fromX - (oldViewDistance * right); // inclusive
+ maxZ = fromZ + (oldViewDistance * up) + up; // exclusive
+ minZ = toZ - (oldViewDistance * up); // inclusive
+
+ for (int currX = minX; currX != maxX; currX += right) {
+ for (int currZ = minZ; currZ != maxZ; currZ += up) {
+ this.removeObjectFrom(object, currX, currZ, toX, toZ, fromX, fromZ);
+ }
+ }
+ }
+
+ if (dz != 0) {
+ // handle down removal
+
+ maxX = fromX + (oldViewDistance * right) + right; // exclusive
+ minX = fromX - (oldViewDistance * right); // inclusive
+ maxZ = toZ - (oldViewDistance * up); // exclusive
+ minZ = fromZ - (oldViewDistance * up); // inclusive
+
+ for (int currX = minX; currX != maxX; currX += right) {
+ for (int currZ = minZ; currZ != maxZ; currZ += up) {
+ this.removeObjectFrom(object, currX, currZ, toX, toZ, fromX, fromZ);
+ }
+ }
+ }
+ }
+
+ @FunctionalInterface
+ public static interface ChangeCallback<E> {
+
+ // if there is no previous position, then prevPos = Integer.MIN_VALUE
+ void accept(final E object, final int rangeX, final int rangeZ, final int currPosX, final int currPosZ, final int prevPosX, final int prevPosZ,
+ final PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> newState);
+
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/misc/DistanceTrackingAreaMap.java b/src/main/java/com/destroystokyo/paper/util/misc/DistanceTrackingAreaMap.java
new file mode 100644
index 0000000000..3f86c1ad43
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/misc/DistanceTrackingAreaMap.java
@@ -0,0 +1,175 @@
+package com.destroystokyo.paper.util.misc;
+
+import com.destroystokyo.paper.util.math.IntegerUtil;
+import it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap;
+import net.minecraft.server.ChunkCoordIntPair;
+import net.minecraft.server.MCUtil;
+
+/** @author Spottedleaf */
+public abstract class DistanceTrackingAreaMap<E> extends AreaMap<E> {
+
+ // use this map only if you need distance tracking, the tracking here is obviously going to hit harder.
+
+ protected final Long2IntOpenHashMap chunkToNearestDistance = new Long2IntOpenHashMap(1024, 0.7f);
+ {
+ this.chunkToNearestDistance.defaultReturnValue(-1);
+ }
+
+ protected final DistanceChangeCallback<E> distanceChangeCallback;
+
+ public DistanceTrackingAreaMap() {
+ this(new PooledLinkedHashSets<>());
+ }
+
+ // let users define a "global" or "shared" pooled sets if they wish
+ public DistanceTrackingAreaMap(final PooledLinkedHashSets<E> pooledHashSets) {
+ this(pooledHashSets, null, null, null);
+ }
+
+ public DistanceTrackingAreaMap(final PooledLinkedHashSets<E> pooledHashSets, final ChangeCallback<E> addCallback, final ChangeCallback<E> removeCallback,
+ final DistanceChangeCallback<E> distanceChangeCallback) {
+ super(pooledHashSets, addCallback, removeCallback);
+ this.distanceChangeCallback = distanceChangeCallback;
+ }
+
+ // ret -1 if there is nothing mapped
+ public final int getNearestObjectDistance(final long key) {
+ return this.chunkToNearestDistance.get(key);
+ }
+
+ // ret -1 if there is nothing mapped
+ public final int getNearestObjectDistance(final ChunkCoordIntPair chunkPos) {
+ return this.chunkToNearestDistance.get(MCUtil.getCoordinateKey(chunkPos));
+ }
+
+ // ret -1 if there is nothing mapped
+ public final int getNearestObjectDistance(final int chunkX, final int chunkZ) {
+ return this.chunkToNearestDistance.get(MCUtil.getCoordinateKey(chunkX, chunkZ));
+ }
+
+ protected final void recalculateDistance(final int chunkX, final int chunkZ) {
+ final long key = MCUtil.getCoordinateKey(chunkX, chunkZ);
+ final PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> state = this.areaMap.get(key);
+ if (state == null) {
+ final int oldDistance = this.chunkToNearestDistance.remove(key);
+ // nothing here.
+ if (oldDistance == -1) {
+ // nothing was here previously
+ return;
+ }
+ if (this.distanceChangeCallback != null) {
+ this.distanceChangeCallback.accept(chunkX, chunkZ, oldDistance, -1, null);
+ }
+ return;
+ }
+
+ int newDistance = Integer.MAX_VALUE;
+
+ final Object[] rawData = state.getBackingSet();
+ for (int i = 0, len = rawData.length; i < len; ++i) {
+ final Object raw = rawData[i];
+
+ if (raw == null) {
+ continue;
+ }
+
+ final E object = (E)raw;
+ final long location = this.objectToLastCoordinate.getLong(object);
+
+ final int distance = Math.max(IntegerUtil.branchlessAbs(chunkX - MCUtil.getCoordinateX(location)), IntegerUtil.branchlessAbs(chunkZ - MCUtil.getCoordinateZ(location)));
+
+ if (distance < newDistance) {
+ newDistance = distance;
+ }
+ }
+
+ final int oldDistance = this.chunkToNearestDistance.put(key, newDistance);
+
+ if (oldDistance != newDistance) {
+ if (this.distanceChangeCallback != null) {
+ this.distanceChangeCallback.accept(chunkX, chunkZ, oldDistance, newDistance, state);
+ }
+ }
+ }
+
+ @Override
+ protected void addObjectCallback(final E object, final int chunkX, final int chunkZ, final int viewDistance) {
+ final int maxX = chunkX + viewDistance;
+ final int maxZ = chunkZ + viewDistance;
+ final int minX = chunkX - viewDistance;
+ final int minZ = chunkZ - viewDistance;
+ for (int x = minX; x <= maxX; ++x) {
+ for (int z = minZ; z <= maxZ; ++z) {
+ this.recalculateDistance(x, z);
+ }
+ }
+ }
+
+ @Override
+ protected void removeObjectCallback(final E object, final int chunkX, final int chunkZ, final int viewDistance) {
+ final int maxX = chunkX + viewDistance;
+ final int maxZ = chunkZ + viewDistance;
+ final int minX = chunkX - viewDistance;
+ final int minZ = chunkZ - viewDistance;
+ for (int x = minX; x <= maxX; ++x) {
+ for (int z = minZ; z <= maxZ; ++z) {
+ this.recalculateDistance(x, z);
+ }
+ }
+ }
+
+ @Override
+ protected void updateObjectCallback(final E object, final long oldPosition, final long newPosition, final int oldViewDistance, final int newViewDistance) {
+ if (oldPosition == newPosition && newViewDistance == oldViewDistance) {
+ return;
+ }
+
+ final int toX = MCUtil.getCoordinateX(newPosition);
+ final int toZ = MCUtil.getCoordinateZ(newPosition);
+ final int fromX = MCUtil.getCoordinateX(oldPosition);
+ final int fromZ = MCUtil.getCoordinateZ(oldPosition);
+
+ final int totalX = IntegerUtil.branchlessAbs(fromX - toX);
+ final int totalZ = IntegerUtil.branchlessAbs(fromZ - toZ);
+
+ if (Math.max(totalX, totalZ) > (2 * Math.max(newViewDistance, oldViewDistance))) {
+ // teleported?
+ this.removeObjectCallback(object, fromX, fromZ, oldViewDistance);
+ this.addObjectCallback(object, toX, toZ, newViewDistance);
+ return;
+ }
+
+ final int minX = Math.min(fromX - oldViewDistance, toX - newViewDistance);
+ final int maxX = Math.max(fromX + oldViewDistance, toX + newViewDistance);
+ final int minZ = Math.min(fromZ - oldViewDistance, toZ - newViewDistance);
+ final int maxZ = Math.max(fromZ + oldViewDistance, toZ + newViewDistance);
+
+ for (int x = minX; x <= maxX; ++x) {
+ for (int z = minZ; z <= maxZ; ++z) {
+ final int distXOld = IntegerUtil.branchlessAbs(x - fromX);
+ final int distZOld = IntegerUtil.branchlessAbs(z - fromZ);
+
+ if (Math.max(distXOld, distZOld) <= oldViewDistance) {
+ this.recalculateDistance(x, z);
+ continue;
+ }
+
+ final int distXNew = IntegerUtil.branchlessAbs(x - toX);
+ final int distZNew = IntegerUtil.branchlessAbs(z - toZ);
+
+ if (Math.max(distXNew, distZNew) <= newViewDistance) {
+ this.recalculateDistance(x, z);
+ continue;
+ }
+ }
+ }
+ }
+
+ @FunctionalInterface
+ public static interface DistanceChangeCallback<E> {
+
+ void accept(final int posX, final int posZ, final int oldNearestDistance, final int newNearestDistance,
+ final PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<E> state);
+
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/misc/PlayerAreaMap.java b/src/main/java/com/destroystokyo/paper/util/misc/PlayerAreaMap.java
new file mode 100644
index 0000000000..8a552a87ab
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/misc/PlayerAreaMap.java
@@ -0,0 +1,27 @@
+package com.destroystokyo.paper.util.misc;
+
+import net.minecraft.server.EntityPlayer;
+
+/**
+ * @author Spottedleaf
+ */
+public final class PlayerAreaMap extends AreaMap<EntityPlayer> {
+
+ public PlayerAreaMap() {
+ super();
+ }
+
+ public PlayerAreaMap(final PooledLinkedHashSets<EntityPlayer> pooledHashSets) {
+ super(pooledHashSets);
+ }
+
+ public PlayerAreaMap(final PooledLinkedHashSets<EntityPlayer> pooledHashSets, final ChangeCallback<EntityPlayer> addCallback,
+ final ChangeCallback<EntityPlayer> removeCallback) {
+ super(pooledHashSets, addCallback, removeCallback);
+ }
+
+ @Override
+ protected PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<EntityPlayer> getEmptySetFor(final EntityPlayer player) {
+ return player.cachedSingleHashSet;
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/misc/PlayerDistanceTrackingAreaMap.java b/src/main/java/com/destroystokyo/paper/util/misc/PlayerDistanceTrackingAreaMap.java
new file mode 100644
index 0000000000..0292afc522
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/misc/PlayerDistanceTrackingAreaMap.java
@@ -0,0 +1,24 @@
+package com.destroystokyo.paper.util.misc;
+
+import net.minecraft.server.EntityPlayer;
+
+public class PlayerDistanceTrackingAreaMap extends DistanceTrackingAreaMap<EntityPlayer> {
+
+ public PlayerDistanceTrackingAreaMap() {
+ super();
+ }
+
+ public PlayerDistanceTrackingAreaMap(final PooledLinkedHashSets<EntityPlayer> pooledHashSets) {
+ super(pooledHashSets);
+ }
+
+ public PlayerDistanceTrackingAreaMap(final PooledLinkedHashSets<EntityPlayer> pooledHashSets, final ChangeCallback<EntityPlayer> addCallback,
+ final ChangeCallback<EntityPlayer> removeCallback, final DistanceChangeCallback<EntityPlayer> distanceChangeCallback) {
+ super(pooledHashSets, addCallback, removeCallback, distanceChangeCallback);
+ }
+
+ @Override
+ protected PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<EntityPlayer> getEmptySetFor(final EntityPlayer player) {
+ return player.cachedSingleHashSet;
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/misc/PooledLinkedHashSets.java b/src/main/java/com/destroystokyo/paper/util/misc/PooledLinkedHashSets.java
new file mode 100644
index 0000000000..e51104e65a
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/misc/PooledLinkedHashSets.java
@@ -0,0 +1,287 @@
+package com.destroystokyo.paper.util.misc;
+
+import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
+import it.unimi.dsi.fastutil.objects.ObjectOpenHashSet;
+import java.lang.ref.WeakReference;
+
+/** @author Spottedleaf */
+public class PooledLinkedHashSets<E> {
+
+ /* Tested via https://gist.github.com/Spottedleaf/a93bb7a8993d6ce142d3efc5932bf573 */
+
+ // we really want to avoid that equals() check as much as possible...
+ protected final Object2ObjectOpenHashMap<PooledObjectLinkedOpenHashSet<E>, PooledObjectLinkedOpenHashSet<E>> mapPool = new Object2ObjectOpenHashMap<>(128, 0.25f);
+
+ protected void decrementReferenceCount(final PooledObjectLinkedOpenHashSet<E> current) {
+ if (current.referenceCount == 0) {
+ throw new IllegalStateException("Cannot decrement reference count for " + current);
+ }
+ if (current.referenceCount == -1 || --current.referenceCount > 0) {
+ return;
+ }
+
+ this.mapPool.remove(current);
+ return;
+ }
+
+ public PooledObjectLinkedOpenHashSet<E> findMapWith(final PooledObjectLinkedOpenHashSet<E> current, final E object) {
+ final PooledObjectLinkedOpenHashSet<E> cached = current.getAddCache(object);
+
+ if (cached != null) {
+ decrementReferenceCount(current);
+
+ if (cached.referenceCount == 0) {
+ // bring the map back from the dead
+ PooledObjectLinkedOpenHashSet<E> contending = this.mapPool.putIfAbsent(cached, cached);
+ if (contending != null) {
+ // a map already exists with the elements we want
+ if (contending.referenceCount != -1) {
+ ++contending.referenceCount;
+ }
+ current.updateAddCache(object, contending);
+ return contending;
+ }
+
+ cached.referenceCount = 1;
+ } else if (cached.referenceCount != -1) {
+ ++cached.referenceCount;
+ }
+
+ return cached;
+ }
+
+ if (!current.add(object)) {
+ return current;
+ }
+
+ // we use get/put since we use a different key on put
+ PooledObjectLinkedOpenHashSet<E> ret = this.mapPool.get(current);
+
+ if (ret == null) {
+ ret = new PooledObjectLinkedOpenHashSet<>(current);
+ current.remove(object);
+ this.mapPool.put(ret, ret);
+ ret.referenceCount = 1;
+ } else {
+ if (ret.referenceCount != -1) {
+ ++ret.referenceCount;
+ }
+ current.remove(object);
+ }
+
+ current.updateAddCache(object, ret);
+
+ decrementReferenceCount(current);
+ return ret;
+ }
+
+ // rets null if current.size() == 1
+ public PooledObjectLinkedOpenHashSet<E> findMapWithout(final PooledObjectLinkedOpenHashSet<E> current, final E object) {
+ if (current.set.size() == 1) {
+ decrementReferenceCount(current);
+ return null;
+ }
+
+ final PooledObjectLinkedOpenHashSet<E> cached = current.getRemoveCache(object);
+
+ if (cached != null) {
+ decrementReferenceCount(current);
+
+ if (cached.referenceCount == 0) {
+ // bring the map back from the dead
+ PooledObjectLinkedOpenHashSet<E> contending = this.mapPool.putIfAbsent(cached, cached);
+ if (contending != null) {
+ // a map already exists with the elements we want
+ if (contending.referenceCount != -1) {
+ ++contending.referenceCount;
+ }
+ current.updateRemoveCache(object, contending);
+ return contending;
+ }
+
+ cached.referenceCount = 1;
+ } else if (cached.referenceCount != -1) {
+ ++cached.referenceCount;
+ }
+
+ return cached;
+ }
+
+ if (!current.remove(object)) {
+ return current;
+ }
+
+ // we use get/put since we use a different key on put
+ PooledObjectLinkedOpenHashSet<E> ret = this.mapPool.get(current);
+
+ if (ret == null) {
+ ret = new PooledObjectLinkedOpenHashSet<>(current);
+ current.add(object);
+ this.mapPool.put(ret, ret);
+ ret.referenceCount = 1;
+ } else {
+ if (ret.referenceCount != -1) {
+ ++ret.referenceCount;
+ }
+ current.add(object);
+ }
+
+ current.updateRemoveCache(object, ret);
+
+ decrementReferenceCount(current);
+ return ret;
+ }
+
+ static final class RawSetObjectLinkedOpenHashSet<E> extends ObjectOpenHashSet<E> {
+
+ public RawSetObjectLinkedOpenHashSet() {
+ super();
+ }
+
+ public RawSetObjectLinkedOpenHashSet(final int capacity) {
+ super(capacity);
+ }
+
+ public RawSetObjectLinkedOpenHashSet(final int capacity, final float loadFactor) {
+ super(capacity, loadFactor);
+ }
+
+ @Override
+ public RawSetObjectLinkedOpenHashSet<E> clone() {
+ return (RawSetObjectLinkedOpenHashSet<E>)super.clone();
+ }
+
+ public E[] getRawSet() {
+ return this.key;
+ }
+ }
+
+ public static final class PooledObjectLinkedOpenHashSet<E> {
+
+ private static final WeakReference NULL_REFERENCE = new WeakReference<>(null);
+
+ final RawSetObjectLinkedOpenHashSet<E> set;
+ int referenceCount; // -1 if special
+ int hash; // optimize hashcode
+
+ // add cache
+ WeakReference<E> lastAddObject = NULL_REFERENCE;
+ WeakReference<PooledObjectLinkedOpenHashSet<E>> lastAddMap = NULL_REFERENCE;
+
+ // remove cache
+ WeakReference<E> lastRemoveObject = NULL_REFERENCE;
+ WeakReference<PooledObjectLinkedOpenHashSet<E>> lastRemoveMap = NULL_REFERENCE;
+
+ public PooledObjectLinkedOpenHashSet(final PooledLinkedHashSets<E> pooledSets) {
+ this.set = new RawSetObjectLinkedOpenHashSet<>(2, 0.8f);
+ }
+
+ public PooledObjectLinkedOpenHashSet(final E single) {
+ this((PooledLinkedHashSets<E>)null);
+ this.referenceCount = -1;
+ this.add(single);
+ }
+
+ public PooledObjectLinkedOpenHashSet(final PooledObjectLinkedOpenHashSet<E> other) {
+ this.set = other.set.clone();
+ this.hash = other.hash;
+ }
+
+ // from https://github.com/Spottedleaf/ConcurrentUtil/blob/master/src/main/java/ca/spottedleaf/concurrentutil/util/IntegerUtil.java
+ // generated by https://github.com/skeeto/hash-prospector
+ private static int hash0(int x) {
+ x *= 0x36935555;
+ x ^= x >>> 16;
+ return x;
+ }
+
+ PooledObjectLinkedOpenHashSet<E> getAddCache(final E element) {
+ final E currentAdd = this.lastAddObject.get();
+
+ if (currentAdd == null || !(currentAdd == element || currentAdd.equals(element))) {
+ return null;
+ }
+
+ return this.lastAddMap.get();
+ }
+
+ PooledObjectLinkedOpenHashSet<E> getRemoveCache(final E element) {
+ final E currentRemove = this.lastRemoveObject.get();
+
+ if (currentRemove == null || !(currentRemove == element || currentRemove.equals(element))) {
+ return null;
+ }
+
+ return this.lastRemoveMap.get();
+ }
+
+ void updateAddCache(final E element, final PooledObjectLinkedOpenHashSet<E> map) {
+ this.lastAddObject = new WeakReference<>(element);
+ this.lastAddMap = new WeakReference<>(map);
+ }
+
+ void updateRemoveCache(final E element, final PooledObjectLinkedOpenHashSet<E> map) {
+ this.lastRemoveObject = new WeakReference<>(element);
+ this.lastRemoveMap = new WeakReference<>(map);
+ }
+
+ boolean add(final E element) {
+ boolean added = this.set.add(element);
+
+ if (added) {
+ this.hash += hash0(element.hashCode());
+ }
+
+ return added;
+ }
+
+ boolean remove(Object element) {
+ boolean removed = this.set.remove(element);
+
+ if (removed) {
+ this.hash -= hash0(element.hashCode());
+ }
+
+ return removed;
+ }
+
+ public boolean contains(final Object element) {
+ return this.set.contains(element);
+ }
+
+ public E[] getBackingSet() {
+ return this.set.getRawSet();
+ }
+
+ public int size() {
+ return this.set.size();
+ }
+
+ @Override
+ public int hashCode() {
+ return this.hash;
+ }
+
+ @Override
+ public boolean equals(final Object other) {
+ if (!(other instanceof PooledObjectLinkedOpenHashSet)) {
+ return false;
+ }
+ if (this.referenceCount == 0) {
+ return other == this;
+ } else {
+ if (other == this) {
+ // Unfortunately we are never equal to our own instance while in use!
+ return false;
+ }
+ return this.hash == ((PooledObjectLinkedOpenHashSet)other).hash && this.set.equals(((PooledObjectLinkedOpenHashSet)other).set);
+ }
+ }
+
+ @Override
+ public String toString() {
+ return "PooledHashSet: size: " + this.set.size() + ", reference count: " + this.referenceCount + ", hash: " +
+ this.hashCode() + ", identity: " + System.identityHashCode(this) + " map: " + this.set.toString();
+ }
+ }
+}
diff --git a/src/main/java/com/destroystokyo/paper/util/set/OptimizedSmallEnumSet.java b/src/main/java/com/destroystokyo/paper/util/set/OptimizedSmallEnumSet.java
new file mode 100644
index 0000000000..9df0006c1a
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/set/OptimizedSmallEnumSet.java
@@ -0,0 +1,67 @@
+package com.destroystokyo.paper.util.set;
+
+import java.util.Collection;
+
+/**
+ * @author Spottedleaf <Spottedleaf@users.noreply.github.com>
+ */
+public final class OptimizedSmallEnumSet<E extends Enum<E>> {
+
+ private final Class<E> enumClass;
+ private long backingSet;
+
+ public OptimizedSmallEnumSet(final Class<E> clazz) {
+ if (clazz == null) {
+ throw new IllegalArgumentException("Null class");
+ }
+ if (!clazz.isEnum()) {
+ throw new IllegalArgumentException("Class must be enum, not " + clazz.getCanonicalName());
+ }
+ this.enumClass = clazz;
+ }
+
+ public boolean addUnchecked(final E element) {
+ final int ordinal = element.ordinal();
+ final long key = 1L << ordinal;
+
+ final long prev = this.backingSet;
+ this.backingSet = prev | key;
+
+ return (prev & key) == 0;
+ }
+
+ public boolean removeUnchecked(final E element) {
+ final int ordinal = element.ordinal();
+ final long key = 1L << ordinal;
+
+ final long prev = this.backingSet;
+ this.backingSet = prev & ~key;
+
+ return (prev & key) != 0;
+ }
+
+ public void clear() {
+ this.backingSet = 0L;
+ }
+
+ public int size() {
+ return Long.bitCount(this.backingSet);
+ }
+
+ public void addAllUnchecked(final Collection<E> enums) {
+ for (final E element : enums) {
+ if (element == null) {
+ throw new NullPointerException("Null element");
+ }
+ this.backingSet |= (1L << element.ordinal());
+ }
+ }
+
+ public long getBackingSet() {
+ return this.backingSet;
+ }
+
+ public boolean hasCommonElements(final OptimizedSmallEnumSet<E> other) {
+ return (other.backingSet & this.backingSet) != 0;
+ }
+}
diff --git a/src/main/java/net/minecraft/server/AxisAlignedBB.java b/src/main/java/net/minecraft/server/AxisAlignedBB.java
index 4f60b931a1..f427953a83 100644
--- a/src/main/java/net/minecraft/server/AxisAlignedBB.java
+++ b/src/main/java/net/minecraft/server/AxisAlignedBB.java
@@ -186,6 +186,7 @@ public class AxisAlignedBB {
return this.d(vec3d.x, vec3d.y, vec3d.z);
}
+ public final boolean intersects(AxisAlignedBB axisalignedbb) { return this.c(axisalignedbb); } // Paper - OBFHELPER
public boolean c(AxisAlignedBB axisalignedbb) {
return this.a(axisalignedbb.minX, axisalignedbb.minY, axisalignedbb.minZ, axisalignedbb.maxX, axisalignedbb.maxY, axisalignedbb.maxZ);
}
diff --git a/src/main/java/net/minecraft/server/BlockAccessAir.java b/src/main/java/net/minecraft/server/BlockAccessAir.java
index eff6ebcd30..30cbfc8eac 100644
--- a/src/main/java/net/minecraft/server/BlockAccessAir.java
+++ b/src/main/java/net/minecraft/server/BlockAccessAir.java
@@ -14,6 +14,18 @@ public enum BlockAccessAir implements IBlockAccess {
return null;
}
+ // Paper start - If loaded util
+ @Override
+ public Fluid getFluidIfLoaded(BlockPosition blockposition) {
+ return this.getFluid(blockposition);
+ }
+
+ @Override
+ public IBlockData getTypeIfLoaded(BlockPosition blockposition) {
+ return this.getType(blockposition);
+ }
+ // Paper end
+
@Override
public IBlockData getType(BlockPosition blockposition) {
return Blocks.AIR.getBlockData();
diff --git a/src/main/java/net/minecraft/server/BlockDataAbstract.java b/src/main/java/net/minecraft/server/BlockDataAbstract.java
index 1cf97cefc9..2040f18349 100644
--- a/src/main/java/net/minecraft/server/BlockDataAbstract.java
+++ b/src/main/java/net/minecraft/server/BlockDataAbstract.java
@@ -78,6 +78,7 @@ public abstract class BlockDataAbstract<O, S> implements IBlockDataHolder<S> {
return Collections.unmodifiableCollection(this.d.keySet());
}
+ public final <T extends Comparable<T>> boolean hasProperty(IBlockState<T> iblockstate) { return this.b(iblockstate); } // Paper - OBFHELPER
public <T extends Comparable<T>> boolean b(IBlockState<T> iblockstate) {
return this.d.containsKey(iblockstate);
}
diff --git a/src/main/java/net/minecraft/server/BlockPosition.java b/src/main/java/net/minecraft/server/BlockPosition.java
index c88a62f6b7..5dbd3e60fe 100644
--- a/src/main/java/net/minecraft/server/BlockPosition.java
+++ b/src/main/java/net/minecraft/server/BlockPosition.java
@@ -120,6 +120,7 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
return d0 == 0.0D && d1 == 0.0D && d2 == 0.0D ? this : new BlockPosition((double) this.getX() + d0, (double) this.getY() + d1, (double) this.getZ() + d2);
}
+ public BlockPosition add(int i, int j, int k) {return b(i, j, k);} // Paper - OBFHELPER
public BlockPosition b(int i, int j, int k) {
return i == 0 && j == 0 && k == 0 ? this : new BlockPosition(this.getX() + i, this.getY() + j, this.getZ() + k);
}
@@ -210,6 +211,8 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
return new BlockPosition(this.getY() * baseblockposition.getZ() - this.getZ() * baseblockposition.getY(), this.getZ() * baseblockposition.getX() - this.getX() * baseblockposition.getZ(), this.getX() * baseblockposition.getY() - this.getY() * baseblockposition.getX());
}
+ @Deprecated // We'll replace this...
+ public BlockPosition asImmutable() { return immutableCopy(); } // Paper - OBFHELPER
public BlockPosition immutableCopy() {
return this;
}
@@ -402,6 +405,7 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
return this.d;
}
+ public BlockPosition.MutableBlockPosition setValues(int i, int j, int k) { return d(i, j, k);} // Paper - OBFHELPER
public BlockPosition.MutableBlockPosition d(int i, int j, int k) {
this.b = i;
this.c = j;
@@ -413,6 +417,7 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
return this.c(entity.locX(), entity.locY(), entity.locZ());
}
+ public BlockPosition.MutableBlockPosition setValues(double d0, double d1, double d2) { return c(d0, d1, d2);} // Paper - OBFHELPER
public BlockPosition.MutableBlockPosition c(double d0, double d1, double d2) {
return this.d(MathHelper.floor(d0), MathHelper.floor(d1), MathHelper.floor(d2));
}
@@ -441,14 +446,17 @@ public class BlockPosition extends BaseBlockPosition implements MinecraftSeriali
return this.d(this.b + i, this.c + j, this.d + k);
}
+ public final void setX(final int x) { this.o(x); } // Paper - OBFHELPER
public void o(int i) {
this.b = i;
}
+ public final void setY(final int y) { this.p(y); } // Paper - OBFHELPER
public void p(int i) {
this.c = i;
}
+ public final void setZ(final int z) { this.q(z); } // Paper - OBFHELPER
public void q(int i) {
this.d = i;
}
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 55373cae07..c50fe1c245 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -25,7 +25,7 @@ import org.apache.logging.log4j.Logger;
public class Chunk implements IChunkAccess {
private static final Logger LOGGER = LogManager.getLogger();
- public static final ChunkSection a = null;
+ public static final ChunkSection a = null; public static final ChunkSection EMPTY_CHUNK_SECTION = Chunk.a; // Paper - OBFHELPER
private final ChunkSection[] sections;
private BiomeStorage d;
private final Map<BlockPosition, NBTTagCompound> e;
@@ -48,7 +48,7 @@ public class Chunk implements IChunkAccess {
private Supplier<PlayerChunk.State> u;
@Nullable
private Consumer<Chunk> v;
- private final ChunkCoordIntPair loc;
+ private final ChunkCoordIntPair loc; public final long coordinateKey; // Paper - cache coordinate key
private volatile boolean x;
public Chunk(World world, ChunkCoordIntPair chunkcoordintpair, BiomeStorage biomestorage) {
@@ -65,7 +65,7 @@ public class Chunk implements IChunkAccess {
this.n = new ShortList[16];
this.entitySlices = (List[]) (new List[16]); // Spigot
this.world = world;
- this.loc = chunkcoordintpair;
+ this.loc = chunkcoordintpair; this.coordinateKey = MCUtil.getCoordinateKey(chunkcoordintpair); // Paper - cache coordinate key
this.i = chunkconverter;
HeightMap.Type[] aheightmap_type = HeightMap.Type.values();
int j = aheightmap_type.length;
@@ -108,6 +108,93 @@ public class Chunk implements IChunkAccess {
public boolean needsDecoration;
// CraftBukkit end
+ // Paper start
+ public final com.destroystokyo.paper.util.maplist.EntityList entities = new com.destroystokyo.paper.util.maplist.EntityList();
+ public PlayerChunk playerChunk;
+
+ static final int NEIGHBOUR_CACHE_RADIUS = 3;
+ public static int getNeighbourCacheRadius() {
+ return NEIGHBOUR_CACHE_RADIUS;
+ }
+
+ boolean loadedTicketLevel;
+ private long neighbourChunksLoadedBitset;
+ private final Chunk[] loadedNeighbourChunks = new Chunk[(NEIGHBOUR_CACHE_RADIUS * 2 + 1) * (NEIGHBOUR_CACHE_RADIUS * 2 + 1)];
+
+ private static int getNeighbourIndex(final int relativeX, final int relativeZ) {
+ // index = (relativeX + NEIGHBOUR_CACHE_RADIUS) + (relativeZ + NEIGHBOUR_CACHE_RADIUS) * (NEIGHBOUR_CACHE_RADIUS * 2 + 1)
+ // optimised variant of the above by moving some of the ops to compile time
+ return relativeX + (relativeZ * (NEIGHBOUR_CACHE_RADIUS * 2 + 1)) + (NEIGHBOUR_CACHE_RADIUS + NEIGHBOUR_CACHE_RADIUS * ((NEIGHBOUR_CACHE_RADIUS * 2 + 1)));
+ }
+
+ public final Chunk getRelativeNeighbourIfLoaded(final int relativeX, final int relativeZ) {
+ return this.loadedNeighbourChunks[getNeighbourIndex(relativeX, relativeZ)];
+ }
+
+ public final boolean isNeighbourLoaded(final int relativeX, final int relativeZ) {
+ return (this.neighbourChunksLoadedBitset & (1L << getNeighbourIndex(relativeX, relativeZ))) != 0;
+ }
+
+ public final void setNeighbourLoaded(final int relativeX, final int relativeZ, final Chunk chunk) {
+ if (chunk == null) {
+ throw new IllegalArgumentException("Chunk must be non-null, neighbour: (" + relativeX + "," + relativeZ + "), chunk: " + this.loc);
+ }
+ final int index = getNeighbourIndex(relativeX, relativeZ);
+ this.loadedNeighbourChunks[index] = chunk;
+ this.neighbourChunksLoadedBitset |= (1L << index);
+ }
+
+ public final void setNeighbourUnloaded(final int relativeX, final int relativeZ) {
+ final int index = getNeighbourIndex(relativeX, relativeZ);
+ this.loadedNeighbourChunks[index] = null;
+ this.neighbourChunksLoadedBitset &= ~(1L << index);
+ }
+
+ public final void resetNeighbours() {
+ this.neighbourChunksLoadedBitset = 0L;
+ java.util.Arrays.fill(this.loadedNeighbourChunks, null);
+ }
+
+ public final boolean areNeighboursLoaded(final int radius) {
+ // index = relativeX + (relativeZ * (NEIGHBOUR_CACHE_RADIUS * 2 + 1)) + (NEIGHBOUR_CACHE_RADIUS + NEIGHBOUR_CACHE_RADIUS * ((NEIGHBOUR_CACHE_RADIUS * 2 + 1)))
+ switch (radius) {
+ case 0: {
+ return this.loadedTicketLevel;
+ }
+ case 1: {
+ long mask = 0L;
+ for (int dx = -1; dx <= 1; ++dx) {
+ for (int dz = -1; dz <= 1; ++dz) {
+ mask |= (1L << getNeighbourIndex(dx, dz));
+ }
+ }
+ return (this.neighbourChunksLoadedBitset & mask) == mask;
+ }
+ case 2: {
+ long mask = 0L;
+ for (int dx = -2; dx <= 2; ++dx) {
+ for (int dz = -2; dz <= 2; ++dz) {
+ mask |= (1L << getNeighbourIndex(dx, dz));
+ }
+ }
+ return (this.neighbourChunksLoadedBitset & mask) == mask;
+ }
+ case 3: {
+ long mask = 0L;
+ for (int dx = -3; dx <= 3; ++dx) {
+ for (int dz = -3; dz <= 3; ++dz) {
+ mask |= (1L << getNeighbourIndex(dx, dz));
+ }
+ }
+ return (this.neighbourChunksLoadedBitset & mask) == mask;
+ }
+
+ default:
+ throw new IllegalArgumentException("Radius not recognized: " + radius);
+ }
+ }
+ // Paper end
+
public Chunk(World world, ProtoChunk protochunk) {
this(world, protochunk.getPos(), protochunk.getBiomeIndex(), protochunk.p(), protochunk.n(), protochunk.o(), protochunk.getInhabitedTime(), protochunk.getSections(), (Consumer) null);
Iterator iterator = protochunk.y().iterator();
@@ -213,6 +300,18 @@ public class Chunk implements IChunkAccess {
}
}
+ // Paper start - If loaded util
+ @Override
+ public Fluid getFluidIfLoaded(BlockPosition blockposition) {
+ return this.getFluid(blockposition);
+ }
+
+ @Override
+ public IBlockData getTypeIfLoaded(BlockPosition blockposition) {
+ return this.getType(blockposition);
+ }
+ // Paper end
+
@Override
public Fluid getFluid(BlockPosition blockposition) {
return this.a(blockposition.getX(), blockposition.getY(), blockposition.getZ());
@@ -352,6 +451,7 @@ public class Chunk implements IChunkAccess {
entity.chunkX = this.loc.x;
entity.chunkY = k;
entity.chunkZ = this.loc.z;
+ this.entities.add(entity); // Paper - per chunk entity list
this.entitySlices[k].add(entity);
}
@@ -374,6 +474,7 @@ public class Chunk implements IChunkAccess {
}
this.entitySlices[i].remove(entity);
+ this.entities.remove(entity); // Paper
}
@Override
@@ -395,6 +496,7 @@ public class Chunk implements IChunkAccess {
return this.a(blockposition, Chunk.EnumTileEntityState.CHECK);
}
+ @Nullable public final TileEntity getTileEntityImmediately(BlockPosition pos) { return this.a(pos, EnumTileEntityState.IMMEDIATE); } // Paper - OBFHELPER
@Nullable
public TileEntity a(BlockPosition blockposition, Chunk.EnumTileEntityState chunk_enumtileentitystate) {
// CraftBukkit start
@@ -506,7 +608,25 @@ public class Chunk implements IChunkAccess {
// CraftBukkit start
public void loadCallback() {
+ // Paper start - neighbour cache
+ int chunkX = this.loc.x;
+ int chunkZ = this.loc.z;
+ ChunkProviderServer chunkProvider = ((WorldServer)this.world).getChunkProvider();
+ for (int dx = -NEIGHBOUR_CACHE_RADIUS; dx <= NEIGHBOUR_CACHE_RADIUS; ++dx) {
+ for (int dz = -NEIGHBOUR_CACHE_RADIUS; dz <= NEIGHBOUR_CACHE_RADIUS; ++dz) {
+ Chunk neighbour = chunkProvider.getChunkAtIfLoadedMainThreadNoCache(chunkX + dx, chunkZ + dz);
+ if (neighbour != null) {
+ neighbour.setNeighbourLoaded(-dx, -dz, this);
+ // should be in cached already
+ this.setNeighbourLoaded(dx, dz, neighbour);
+ }
+ }
+ }
+ this.setNeighbourLoaded(0, 0, this);
+ this.loadedTicketLevel = true;
+ // Paper end - neighbour cache
org.bukkit.Server server = this.world.getServer();
+ ((WorldServer)this.world).getChunkProvider().addLoadedChunk(this); // Paper
if (server != null) {
/*
* If it's a new world, the first few chunks are generated inside
@@ -545,6 +665,22 @@ public class Chunk implements IChunkAccess {
server.getPluginManager().callEvent(unloadEvent);
// note: saving can be prevented, but not forced if no saving is actually required
this.mustNotSave = !unloadEvent.isSaveChunk();
+ ((WorldServer)this.world).getChunkProvider().removeLoadedChunk(this); // Paper
+ // Paper start - neighbour cache
+ int chunkX = this.loc.x;
+ int chunkZ = this.loc.z;
+ ChunkProviderServer chunkProvider = ((WorldServer)this.world).getChunkProvider();
+ for (int dx = -NEIGHBOUR_CACHE_RADIUS; dx <= NEIGHBOUR_CACHE_RADIUS; ++dx) {
+ for (int dz = -NEIGHBOUR_CACHE_RADIUS; dz <= NEIGHBOUR_CACHE_RADIUS; ++dz) {
+ Chunk neighbour = chunkProvider.getChunkAtIfLoadedMainThreadNoCache(chunkX + dx, chunkZ + dz);
+ if (neighbour != null) {
+ neighbour.setNeighbourUnloaded(-dx, -dz);
+ }
+ }
+ }
+ this.loadedTicketLevel = false;
+ this.resetNeighbours();
+ // Paper end
}
// CraftBukkit end
diff --git a/src/main/java/net/minecraft/server/ChunkCache.java b/src/main/java/net/minecraft/server/ChunkCache.java
index 11c4d23ba9..53c15c1c0b 100644
--- a/src/main/java/net/minecraft/server/ChunkCache.java
+++ b/src/main/java/net/minecraft/server/ChunkCache.java
@@ -8,7 +8,7 @@ public class ChunkCache implements IBlockAccess, ICollisionAccess {
protected final int b;
protected final IChunkAccess[][] c;
protected boolean d;
- protected final World e;
+ protected final World e; protected final World getWorld() { return e; } // Paper - OBFHELPER
public ChunkCache(World world, BlockPosition blockposition, BlockPosition blockposition1) {
this.e = world;
@@ -71,6 +71,20 @@ public class ChunkCache implements IBlockAccess, ICollisionAccess {
return this.a(i, j);
}
+ // Paper start - if loaded util
+ @Override
+ public Fluid getFluidIfLoaded(BlockPosition blockposition) {
+ IChunkAccess chunk = getWorld().getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4);
+ return chunk == null ? null : chunk.getFluid(blockposition);
+ }
+
+ @Override
+ public IBlockData getTypeIfLoaded(BlockPosition blockposition) {
+ IChunkAccess chunk = getWorld().getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4);
+ return chunk == null ? null : chunk.getType(blockposition);
+ }
+ // Paper end
+
@Nullable
@Override
public TileEntity getTileEntity(BlockPosition blockposition) {
diff --git a/src/main/java/net/minecraft/server/ChunkCoordIntPair.java b/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
index 260644bf0b..f2a19acd84 100644
--- a/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
+++ b/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
@@ -31,7 +31,9 @@ public class ChunkCoordIntPair {
return pair(this.x, this.z);
}
- public static long pair(int i, int j) {
+ public static long asLong(final BlockPosition pos) { return pair(pos.getX() >> 4, pos.getZ() >> 4); } // Paper - OBFHELPER
+ public static long asLong(int x, int z) { return pair(x, z); } // Paper - OBFHELPER
+ public static long pair(int i, int j) {
return (long) i & 4294967295L | ((long) j & 4294967295L) << 32;
}
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index 32c496fa88..ba2af2abe2 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -23,7 +23,7 @@ public class ChunkProviderServer extends IChunkProvider {
private final ChunkMapDistance chunkMapDistance;
public final ChunkGenerator<?> chunkGenerator;
private final WorldServer world;
- private final Thread serverThread;
+ public final Thread serverThread; // Paper - private -> public
private final LightEngineThreaded lightEngine;
private final ChunkProviderServer.a serverThreadQueue;
public final PlayerChunkMap playerChunkMap;
@@ -35,6 +35,169 @@ public class ChunkProviderServer extends IChunkProvider {
private final ChunkStatus[] cacheStatus = new ChunkStatus[4];
private final IChunkAccess[] cacheChunk = new IChunkAccess[4];
+ // Paper start
+ final com.destroystokyo.paper.util.concurrent.WeakSeqLock loadedChunkMapSeqLock = new com.destroystokyo.paper.util.concurrent.WeakSeqLock();
+ final it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap<Chunk> loadedChunkMap = new it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap<>(8192, 0.5f);
+
+ private final Chunk[] lastLoadedChunks = new Chunk[4 * 4];
+ private final long[] lastLoadedChunkKeys = new long[4 * 4];
+
+ {
+ java.util.Arrays.fill(this.lastLoadedChunkKeys, MCUtil.INVALID_CHUNK_KEY);
+ }
+
+ private static int getCacheKey(int x, int z) {
+ return x & 3 | ((z & 3) << 2);
+ }
+
+ void addLoadedChunk(Chunk chunk) {
+ this.loadedChunkMapSeqLock.acquireWrite();
+ try {
+ this.loadedChunkMap.put(chunk.coordinateKey, chunk);
+ } finally {
+ this.loadedChunkMapSeqLock.releaseWrite();
+ }
+
+ // rewrite cache if we have to
+ // we do this since we also cache null chunks
+ int cacheKey = getCacheKey(chunk.getPos().x, chunk.getPos().z);
+
+ long cachedKey = this.lastLoadedChunkKeys[cacheKey];
+ if (cachedKey == chunk.coordinateKey) {
+ this.lastLoadedChunks[cacheKey] = chunk;
+ }
+ }
+
+ void removeLoadedChunk(Chunk chunk) {
+ this.loadedChunkMapSeqLock.acquireWrite();
+ try {
+ this.loadedChunkMap.remove(chunk.coordinateKey);
+ } finally {
+ this.loadedChunkMapSeqLock.releaseWrite();
+ }
+
+ // rewrite cache if we have to
+ // we do this since we also cache null chunks
+ int cacheKey = getCacheKey(chunk.getPos().x, chunk.getPos().z);
+
+ long cachedKey = this.lastLoadedChunkKeys[cacheKey];
+ if (cachedKey == chunk.coordinateKey) {
+ this.lastLoadedChunks[cacheKey] = null;
+ }
+ }
+
+ public Chunk getChunkAtIfLoadedMainThread(int x, int z) {
+ int cacheKey = getCacheKey(x, z);
+ long chunkKey = MCUtil.getCoordinateKey(x, z);
+
+ long cachedKey = this.lastLoadedChunkKeys[cacheKey];
+ if (cachedKey == chunkKey) {
+ return this.lastLoadedChunks[cacheKey];
+ }
+
+ Chunk ret = this.loadedChunkMap.get(chunkKey);
+
+ this.lastLoadedChunkKeys[cacheKey] = chunkKey;
+ this.lastLoadedChunks[cacheKey] = ret;
+
+ return ret;
+ }
+
+ public Chunk getChunkAtIfLoadedMainThreadNoCache(int x, int z) {
+ return this.loadedChunkMap.get(MCUtil.getCoordinateKey(x, z));
+ }
+
+ public Chunk getChunkAtMainThread(int x, int z) {
+ Chunk ret = this.getChunkAtIfLoadedMainThread(x, z);
+ if (ret != null) {
+ return ret;
+ }
+ return (Chunk)this.getChunkAt(x, z, ChunkStatus.FULL, true);
+ }
+
+ private long chunkFutureAwaitCounter;
+
+ public void getEntityTickingChunkAsync(int x, int z, java.util.function.Consumer<Chunk> onLoad) {
+ if (Thread.currentThread() != this.serverThread) {
+ this.serverThreadQueue.execute(() -> {
+ ChunkProviderServer.this.getEntityTickingChunkAsync(x, z, onLoad);
+ });
+ return;
+ }
+ this.getChunkFutureAsynchronously(x, z, 31, PlayerChunk::getEntityTickingFuture, onLoad);
+ }
+
+ public void getTickingChunkAsync(int x, int z, java.util.function.Consumer<Chunk> onLoad) {
+ if (Thread.currentThread() != this.serverThread) {
+ this.serverThreadQueue.execute(() -> {
+ ChunkProviderServer.this.getTickingChunkAsync(x, z, onLoad);
+ });
+ return;
+ }
+ this.getChunkFutureAsynchronously(x, z, 32, PlayerChunk::getTickingFuture, onLoad);
+ }
+
+ public void getFullChunkAsync(int x, int z, java.util.function.Consumer<Chunk> onLoad) {
+ if (Thread.currentThread() != this.serverThread) {
+ this.serverThreadQueue.execute(() -> {
+ ChunkProviderServer.this.getFullChunkAsync(x, z, onLoad);
+ });
+ return;
+ }
+ this.getChunkFutureAsynchronously(x, z, 33, PlayerChunk::getFullChunkFuture, onLoad);
+ }
+
+ private void getChunkFutureAsynchronously(int x, int z, int ticketLevel, Function<PlayerChunk, CompletableFuture<Either<Chunk, PlayerChunk.Failure>>> futureGet, java.util.function.Consumer<Chunk> onLoad) {
+ if (Thread.currentThread() != this.serverThread) {
+ throw new IllegalStateException();
+ }
+ ChunkCoordIntPair chunkPos = new ChunkCoordIntPair(x, z);
+ Long identifier = Long.valueOf(this.chunkFutureAwaitCounter++);
+ this.addTicketAtLevel(TicketType.FUTURE_AWAIT, chunkPos, ticketLevel, identifier);
+ this.tickDistanceManager();
+
+ PlayerChunk chunk = this.playerChunkMap.getUpdatingChunk(chunkPos.pair());
+
+ if (chunk == null) {
+ throw new IllegalStateException("Expected playerchunk " + chunkPos + " in world '" + this.world.getWorld().getName() + "'");
+ }
+
+ CompletableFuture<Either<Chunk, PlayerChunk.Failure>> future = futureGet.apply(chunk);
+
+ future.whenCompleteAsync((either, throwable) -> {
+ try {
+ if (throwable != null) {
+ if (throwable instanceof ThreadDeath) {
+ throw (ThreadDeath)throwable;
+ }
+ MinecraftServer.LOGGER.fatal("Failed to complete future await for chunk " + chunkPos.toString() + " in world '" + ChunkProviderServer.this.world.getWorld().getName() + "'", throwable);
+ } else if (either.right().isPresent()) {
+ MinecraftServer.LOGGER.fatal("Failed to complete future await for chunk " + chunkPos.toString() + " in world '" + ChunkProviderServer.this.world.getWorld().getName() + "': " + either.right().get().toString());
+ }
+
+ try {
+ if (onLoad != null) {
+ playerChunkMap.callbackExecutor.execute(() -> {
+ onLoad.accept(either == null ? null : either.left().orElse(null)); // indicate failure to the callback.
+ });
+ }
+ } catch (Throwable thr) {
+ if (thr instanceof ThreadDeath) {
+ throw (ThreadDeath)thr;
+ }
+ MinecraftServer.LOGGER.fatal("Load callback for future await failed " + chunkPos.toString() + " in world '" + ChunkProviderServer.this.world.getWorld().getName() + "'", thr);
+ return;
+ }
+ } finally {
+ // due to odd behaviour with CB unload implementation we need to have these AFTER the load callback.
+ ChunkProviderServer.this.addTicketAtLevel(TicketType.UNKNOWN, chunkPos, ticketLevel, chunkPos);
+ ChunkProviderServer.this.removeTicketAtLevel(TicketType.FUTURE_AWAIT, chunkPos, ticketLevel, identifier);
+ }
+ }, this.serverThreadQueue);
+ }
+ // Paper end
+
+
public ChunkProviderServer(WorldServer worldserver, File file, DataFixer datafixer, DefinedStructureManager definedstructuremanager, Executor executor, ChunkGenerator<?> chunkgenerator, int i, WorldLoadListener worldloadlistener, Supplier<WorldPersistentData> supplier) {
this.world = worldserver;
this.serverThreadQueue = new ChunkProviderServer.a(worldserver);
@@ -77,6 +240,49 @@ public class ChunkProviderServer extends IChunkProvider {
this.cacheChunk[0] = ichunkaccess;
}
+ // Paper start - "real" get chunk if loaded
+ // Note: Partially copied from the getChunkAt method below
+ @Nullable
+ public Chunk getChunkAtIfCachedImmediately(int x, int z) {
+ long k = ChunkCoordIntPair.pair(x, z);
+
+ // Note: Bypass cache since we need to check ticket level, and to make this MT-Safe
+
+ PlayerChunk playerChunk = this.getChunk(k);
+ if (playerChunk == null) {
+ return null;
+ }
+
+ return playerChunk.getFullChunkIfCached();
+ }
+
+ @Nullable
+ public Chunk getChunkAtIfLoadedImmediately(int x, int z) {
+ long k = ChunkCoordIntPair.pair(x, z);
+
+ if (Thread.currentThread() == this.serverThread) {
+ return this.getChunkAtIfLoadedMainThread(x, z);
+ }
+
+ Chunk ret = null;
+ long readlock;
+ do {
+ readlock = this.loadedChunkMapSeqLock.acquireRead();
+ try {
+ ret = this.loadedChunkMap.get(k);
+ } catch (Throwable thr) {
+ if (thr instanceof ThreadDeath) {
+ throw (ThreadDeath)thr;
+ }
+ // re-try, this means a CME occurred...
+ continue;
+ }
+ } while (!this.loadedChunkMapSeqLock.tryReleaseRead(readlock));
+
+ return ret;
+ }
+ // Paper end
+
@Nullable
@Override
public IChunkAccess getChunkAt(int i, int j, ChunkStatus chunkstatus, boolean flag) {
diff --git a/src/main/java/net/minecraft/server/DataBits.java b/src/main/java/net/minecraft/server/DataBits.java
index 7ca3a1d0c5..2edd9b8714 100644
--- a/src/main/java/net/minecraft/server/DataBits.java
+++ b/src/main/java/net/minecraft/server/DataBits.java
@@ -83,6 +83,7 @@ public class DataBits {
}
}
+ public long[] getDataBits() { return this.a(); } // Paper - OBFHELPER
public long[] a() {
return this.a;
}
diff --git a/src/main/java/net/minecraft/server/DataPalette.java b/src/main/java/net/minecraft/server/DataPalette.java
index 75ba698868..45403fbe30 100644
--- a/src/main/java/net/minecraft/server/DataPalette.java
+++ b/src/main/java/net/minecraft/server/DataPalette.java
@@ -4,10 +4,12 @@ import javax.annotation.Nullable;
public interface DataPalette<T> {
+ default int getOrCreateIdFor(T object) { return this.a(object); } // Paper - OBFHELPER
int a(T t0);
boolean b(T t0);
+ @Nullable default T getObject(int dataBits) { return this.a(dataBits); } // Paper - OBFHELPER
@Nullable
T a(int i);
diff --git a/src/main/java/net/minecraft/server/DataPaletteBlock.java b/src/main/java/net/minecraft/server/DataPaletteBlock.java
index 774a8f5434..d5f5a51872 100644
--- a/src/main/java/net/minecraft/server/DataPaletteBlock.java
+++ b/src/main/java/net/minecraft/server/DataPaletteBlock.java
@@ -11,7 +11,7 @@ import java.util.stream.Collectors;
public class DataPaletteBlock<T> implements DataPaletteExpandable<T> {
- private final DataPalette<T> b;
+ private final DataPalette<T> b; private final DataPalette<T> getDataPaletteGlobal() { return this.b; } // Paper - OBFHELPER
private final DataPaletteExpandable<T> c = (i, object) -> {
return 0;
};
@@ -19,9 +19,9 @@ public class DataPaletteBlock<T> implements DataPaletteExpandable<T> {
private final Function<NBTTagCompound, T> e;
private final Function<T, NBTTagCompound> f;
private final T g;
- protected DataBits a;
- private DataPalette<T> h;
- private int i;
+ protected DataBits a; protected DataBits getDataBits() { return this.a; } // Paper - OBFHELPER
+ private DataPalette<T> h; private DataPalette<T> getDataPalette() { return this.h; } // Paper - OBFHELPER
+ private int i; private int getBitsPerObject() { return this.i; } // Paper - OBFHELPER
private final ReentrantLock j = new ReentrantLock();
public void a() {
@@ -56,6 +56,7 @@ public class DataPaletteBlock<T> implements DataPaletteExpandable<T> {
return j << 8 | k << 4 | i;
}
+ private void initialize(int bitsPerObject) { this.b(bitsPerObject); } // Paper - OBFHELPER
private void b(int i) {
if (i != this.i) {
this.i = i;
@@ -133,6 +134,7 @@ public class DataPaletteBlock<T> implements DataPaletteExpandable<T> {
return t0 == null ? this.g : t0;
}
+ public void writeDataPaletteBlock(PacketDataSerializer packetDataSerializer) { this.b(packetDataSerializer); } // Paper - OBFHELPER
public void b(PacketDataSerializer packetdataserializer) {
this.a();
packetdataserializer.writeByte(this.i);
diff --git a/src/main/java/net/minecraft/server/EntityCreature.java b/src/main/java/net/minecraft/server/EntityCreature.java
index fe69161e5b..b40c8d2f83 100644
--- a/src/main/java/net/minecraft/server/EntityCreature.java
+++ b/src/main/java/net/minecraft/server/EntityCreature.java
@@ -6,6 +6,8 @@ import org.bukkit.event.entity.EntityUnleashEvent;
public abstract class EntityCreature extends EntityInsentient {
+ public org.bukkit.craftbukkit.entity.CraftCreature getBukkitCreature() { return (org.bukkit.craftbukkit.entity.CraftCreature) super.getBukkitEntity(); } // Paper
+
protected EntityCreature(EntityTypes<? extends EntityCreature> entitytypes, World world) {
super(entitytypes, world);
}
diff --git a/src/main/java/net/minecraft/server/EntityInsentient.java b/src/main/java/net/minecraft/server/EntityInsentient.java
index bdfb173853..0b06fa2b66 100644
--- a/src/main/java/net/minecraft/server/EntityInsentient.java
+++ b/src/main/java/net/minecraft/server/EntityInsentient.java
@@ -146,6 +146,7 @@ public abstract class EntityInsentient extends EntityLiving {
return this.goalTarget;
}
+ public org.bukkit.craftbukkit.entity.CraftMob getBukkitMob() { return (org.bukkit.craftbukkit.entity.CraftMob) super.getBukkitEntity(); } // Paper
public void setGoalTarget(@Nullable EntityLiving entityliving) {
// CraftBukkit start - fire event
setGoalTarget(entityliving, EntityTargetEvent.TargetReason.UNKNOWN, true);
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 9d1adaaa2c..3ace8ee854 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -129,6 +129,7 @@ public abstract class EntityLiving extends Entity {
public org.bukkit.craftbukkit.attribute.CraftAttributeMap craftAttributes;
public boolean collides = true;
public boolean canPickUpLoot;
+ public org.bukkit.craftbukkit.entity.CraftLivingEntity getBukkitLivingEntity() { return (org.bukkit.craftbukkit.entity.CraftLivingEntity) super.getBukkitEntity(); } // Paper
@Override
public float getBukkitYaw() {
diff --git a/src/main/java/net/minecraft/server/EntityMonster.java b/src/main/java/net/minecraft/server/EntityMonster.java
index 00c3b666d7..e5322fbae5 100644
--- a/src/main/java/net/minecraft/server/EntityMonster.java
+++ b/src/main/java/net/minecraft/server/EntityMonster.java
@@ -5,6 +5,7 @@ import java.util.function.Predicate;
public abstract class EntityMonster extends EntityCreature implements IMonster {
+ public org.bukkit.craftbukkit.entity.CraftMonster getBukkitMonster() { return (org.bukkit.craftbukkit.entity.CraftMonster) super.getBukkitEntity(); } // Paper
protected EntityMonster(EntityTypes<? extends EntityMonster> entitytypes, World world) {
super(entitytypes, world);
this.f = 5;
diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
index 541ddc928b..26e32aa1db 100644
--- a/src/main/java/net/minecraft/server/EntityPlayer.java
+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
@@ -87,6 +87,8 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
public Integer clientViewDistance;
// CraftBukkit end
+ public final com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<EntityPlayer> cachedSingleHashSet; // Paper
+
public EntityPlayer(MinecraftServer minecraftserver, WorldServer worldserver, GameProfile gameprofile, PlayerInteractManager playerinteractmanager) {
super((World) worldserver, gameprofile);
playerinteractmanager.player = this;
@@ -98,6 +100,8 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
this.H = 1.0F;
this.a(worldserver);
+ this.cachedSingleHashSet = new com.destroystokyo.paper.util.misc.PooledLinkedHashSets.PooledObjectLinkedOpenHashSet<>(this); // Paper
+
// CraftBukkit start
this.displayName = this.getName();
this.canPickUpLoot = true;
diff --git a/src/main/java/net/minecraft/server/EntityTypes.java b/src/main/java/net/minecraft/server/EntityTypes.java
index 29e776ca19..4328273b1f 100644
--- a/src/main/java/net/minecraft/server/EntityTypes.java
+++ b/src/main/java/net/minecraft/server/EntityTypes.java
@@ -4,6 +4,7 @@ import com.mojang.datafixers.DataFixUtils;
import java.util.Collections;
import java.util.Optional;
import java.util.Set; // Paper
+import java.util.Map; // Paper
import java.util.UUID;
import java.util.function.Function;
import java.util.stream.Stream;
@@ -290,8 +291,8 @@ public class EntityTypes<T extends Entity> {
return this.bj.height;
}
- @Nullable
- public T a(World world) {
+ public T create(World world) { return this.a(world); } // Paper - OBFHELPER
+ @Nullable public T a(World world) { // Paper - OBFHELPER
return this.ba.create(this, world);
}
diff --git a/src/main/java/net/minecraft/server/IAsyncTaskHandler.java b/src/main/java/net/minecraft/server/IAsyncTaskHandler.java
index 1890c760f9..7e5ece9d50 100644
--- a/src/main/java/net/minecraft/server/IAsyncTaskHandler.java
+++ b/src/main/java/net/minecraft/server/IAsyncTaskHandler.java
@@ -68,6 +68,15 @@ public abstract class IAsyncTaskHandler<R extends Runnable> implements Mailbox<R
}
+ // Paper start
+ public void scheduleOnMain(Runnable r0) {
+ // postToMainThread does not work the same as older versions of mc
+ // This method is actually used to create a TickTask, which can then be posted onto main
+ this.addTask(this.postToMainThread(r0));
+ }
+ // Paper end
+
+ public void addTask(R r0) { a(r0); }; // Paper - OBFHELPER
public void a(R r0) {
this.d.add(r0);
LockSupport.unpark(this.getThread());
diff --git a/src/main/java/net/minecraft/server/IBlockAccess.java b/src/main/java/net/minecraft/server/IBlockAccess.java
index 3b08770801..0dff023529 100644
--- a/src/main/java/net/minecraft/server/IBlockAccess.java
+++ b/src/main/java/net/minecraft/server/IBlockAccess.java
@@ -9,10 +9,24 @@ public interface IBlockAccess {
@Nullable
TileEntity getTileEntity(BlockPosition blockposition);
+ IBlockData getTypeIfLoaded(BlockPosition blockposition); // Paper - if loaded util
IBlockData getType(BlockPosition blockposition);
+ Fluid getFluidIfLoaded(BlockPosition blockposition); // Paper - if loaded util
Fluid getFluid(BlockPosition blockposition);
+ // Paper start - if loaded util
+ default Material getMaterialIfLoaded(BlockPosition blockposition) {
+ IBlockData type = this.getTypeIfLoaded(blockposition);
+ return type == null ? null : type.getMaterial();
+ }
+
+ default Block getBlockIfLoaded(BlockPosition blockposition) {
+ IBlockData type = this.getTypeIfLoaded(blockposition);
+ return type == null ? null : type.getBlock();
+ }
+ // Paper end
+
default int h(BlockPosition blockposition) {
return this.getType(blockposition).h();
}
diff --git a/src/main/java/net/minecraft/server/IOWorker.java b/src/main/java/net/minecraft/server/IOWorker.java
index c5658c0779..b90baef0f5 100644
--- a/src/main/java/net/minecraft/server/IOWorker.java
+++ b/src/main/java/net/minecraft/server/IOWorker.java
@@ -22,7 +22,7 @@ public class IOWorker implements AutoCloseable {
private final Thread b;
private final AtomicBoolean c = new AtomicBoolean();
private final Queue<Runnable> d = Queues.newConcurrentLinkedQueue();
- private final RegionFileCache e;
+ private final RegionFileCache e; public RegionFileCache getRegionFileCache() { return e; } // Paper - OBFHELPER
private final Map<ChunkCoordIntPair, IOWorker.a> f = Maps.newLinkedHashMap();
private boolean g = true;
private CompletableFuture<Void> h = new CompletableFuture();
diff --git a/src/main/java/net/minecraft/server/IWorldReader.java b/src/main/java/net/minecraft/server/IWorldReader.java
index ba315131e1..cbe2aa4c0a 100644
--- a/src/main/java/net/minecraft/server/IWorldReader.java
+++ b/src/main/java/net/minecraft/server/IWorldReader.java
@@ -4,6 +4,7 @@ import javax.annotation.Nullable;
public interface IWorldReader extends IBlockLightAccess, ICollisionAccess, BiomeManager.Provider {
+ @Nullable IChunkAccess getChunkIfLoadedImmediately(int x, int z); // Paper - ifLoaded api (we need this since current impl blocks if the chunk is loading)
@Nullable
IChunkAccess getChunkAt(int i, int j, ChunkStatus chunkstatus, boolean flag);
diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java
index 75308712d0..aa7501d366 100644
--- a/src/main/java/net/minecraft/server/ItemStack.java
+++ b/src/main/java/net/minecraft/server/ItemStack.java
@@ -37,10 +37,19 @@ import org.bukkit.event.world.StructureGrowEvent;
public final class ItemStack {
private static final Logger LOGGER = LogManager.getLogger();
- public static final ItemStack a = new ItemStack((Item) null);
+ public static final ItemStack a = new ItemStack((Item) null);public static final ItemStack NULL_ITEM = a; // Paper - OBFHELPER
public static final DecimalFormat b = H();
private int count;
private int e;
+ // Paper start
+ private org.bukkit.craftbukkit.inventory.CraftItemStack bukkitStack;
+ public org.bukkit.inventory.ItemStack getBukkitStack() {
+ if (bukkitStack == null || bukkitStack.getHandle() != this) {
+ bukkitStack = org.bukkit.craftbukkit.inventory.CraftItemStack.asCraftMirror(this);
+ }
+ return bukkitStack;
+ }
+ // Paper end
@Deprecated
private Item item;
private NBTTagCompound tag;
@@ -593,6 +602,17 @@ public final class ItemStack {
return this.tag != null ? this.tag.getList("Enchantments", 10) : new NBTTagList();
}
+ // Paper start - (this is just a good no conflict location)
+ public org.bukkit.inventory.ItemStack asBukkitMirror() {
+ return CraftItemStack.asCraftMirror(this);
+ }
+ public org.bukkit.inventory.ItemStack asBukkitCopy() {
+ return CraftItemStack.asCraftMirror(this.cloneItemStack());
+ }
+ public static ItemStack fromBukkitCopy(org.bukkit.inventory.ItemStack itemstack) {
+ return CraftItemStack.asNMSCopy(itemstack);
+ }
+ // Paper end
public void setTag(@Nullable NBTTagCompound nbttagcompound) {
this.tag = nbttagcompound;
if (this.getItem().usesDurability()) {
@@ -685,6 +705,7 @@ public final class ItemStack {
return this.tag != null && this.tag.hasKeyOfType("Enchantments", 9) ? !this.tag.getList("Enchantments", 10).isEmpty() : false;
}
+ public void getOrCreateTagAndSet(String s, NBTBase nbtbase) { a(s, nbtbase);} // Paper - OBFHELPER
public void a(String s, NBTBase nbtbase) {
this.getOrCreateTag().set(s, nbtbase);
}
@@ -761,6 +782,7 @@ public final class ItemStack {
// CraftBukkit start
@Deprecated
public void setItem(Item item) {
+ this.bukkitStack = null; // Paper
this.item = item;
}
// CraftBukkit end
diff --git a/src/main/java/net/minecraft/server/MCUtil.java b/src/main/java/net/minecraft/server/MCUtil.java
new file mode 100644
index 0000000000..9fb9a96ccb
--- /dev/null
+++ b/src/main/java/net/minecraft/server/MCUtil.java
@@ -0,0 +1,414 @@
+package net.minecraft.server;
+
+import com.destroystokyo.paper.block.TargetBlockInfo;
+import com.google.common.util.concurrent.ThreadFactoryBuilder;
+import org.bukkit.Location;
+import org.bukkit.block.BlockFace;
+import org.bukkit.craftbukkit.CraftWorld;
+import org.bukkit.craftbukkit.util.Waitable;
+import org.spigotmc.AsyncCatcher;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.util.List;
+import java.util.Queue;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.function.Supplier;
+
+public final class MCUtil {
+ private static final Executor asyncExecutor = Executors.newSingleThreadExecutor(new ThreadFactoryBuilder().setNameFormat("Paper Async Task Handler Thread - %1$d").build());
+
+ public static final long INVALID_CHUNK_KEY = getCoordinateKey(Integer.MAX_VALUE, Integer.MAX_VALUE);
+
+ public static void ensureTickThread(final String reason) {
+ if (MinecraftServer.getServer().serverThread != Thread.currentThread()) {
+ throw new IllegalStateException(reason);
+ }
+ }
+
+ public static List<ChunkCoordIntPair> getSpiralOutChunks(BlockPosition blockposition, int radius) {
+ List<ChunkCoordIntPair> list = com.google.common.collect.Lists.newArrayList();
+
+ list.add(new ChunkCoordIntPair(blockposition.getX() >> 4, blockposition.getZ() >> 4));
+ for (int r = 1; r <= radius; r++) {
+ int x = -r;
+ int z = r;
+
+ // Iterates the edge of half of the box; then negates for other half.
+ while (x <= r && z > -r) {
+ list.add(new ChunkCoordIntPair((blockposition.getX() + (x << 4)) >> 4, (blockposition.getZ() + (z << 4)) >> 4));
+ list.add(new ChunkCoordIntPair((blockposition.getX() - (x << 4)) >> 4, (blockposition.getZ() - (z << 4)) >> 4));
+
+ if (x < r) {
+ x++;
+ } else {
+ z--;
+ }
+ }
+ }
+ return list;
+ }
+
+ public static long getCoordinateKey(final BlockPosition blockPos) {
+ return ((long)(blockPos.getZ() >> 4) << 32) | ((blockPos.getX() >> 4) & 0xFFFFFFFFL);
+ }
+
+ public static long getCoordinateKey(final Entity entity) {
+ return ((long)(MCUtil.fastFloor(entity.locZ()) >> 4) << 32) | ((MCUtil.fastFloor(entity.locX()) >> 4) & 0xFFFFFFFFL);
+ }
+
+ public static int fastFloor(double x) {
+ int truncated = (int)x;
+ return x < (double)truncated ? truncated - 1 : truncated;
+ }
+
+ public static int fastFloor(float x) {
+ int truncated = (int)x;
+ return x < (double)truncated ? truncated - 1 : truncated;
+ }
+
+ public static long getCoordinateKey(final ChunkCoordIntPair pair) {
+ return ((long)pair.z << 32) | (pair.x & 0xFFFFFFFFL);
+ }
+
+ public static long getCoordinateKey(final int x, final int z) {
+ return ((long)z << 32) | (x & 0xFFFFFFFFL);
+ }
+
+ public static int getCoordinateX(final long key) {
+ return (int)key;
+ }
+
+ public static int getCoordinateZ(final long key) {
+ return (int)(key >>> 32);
+ }
+
+ public static int getChunkCoordinate(final double coordinate) {
+ return MCUtil.fastFloor(coordinate) >> 4;
+ }
+
+ public static int getBlockCoordinate(final double coordinate) {
+ return MCUtil.fastFloor(coordinate);
+ }
+
+ public static long getBlockKey(final int x, final int y, final int z) {
+ return ((long)x & 0x7FFFFFF) | (((long)z & 0x7FFFFFF) << 27) | ((long)y << 54);
+ }
+
+ public static long getBlockKey(final BlockPosition pos) {
+ return ((long)pos.getX() & 0x7FFFFFF) | (((long)pos.getZ() & 0x7FFFFFF) << 27) | ((long)pos.getY() << 54);
+ }
+
+ public static long getBlockKey(final Entity entity) {
+ return getBlockKey(getBlockCoordinate(entity.locX()), getBlockCoordinate(entity.locY()), getBlockCoordinate(entity.locZ()));
+ }
+
+ // assumes the sets have the same comparator, and if this comparator is null then assume T is Comparable
+ public static <T> void mergeSortedSets(final java.util.function.Consumer<T> consumer, final java.util.Comparator<? super T> comparator, final java.util.SortedSet<T>...sets) {
+ final it.unimi.dsi.fastutil.objects.ObjectRBTreeSet<T> all = new it.unimi.dsi.fastutil.objects.ObjectRBTreeSet<>(comparator);
+ // note: this is done in log(n!) ~ nlogn time. It could be improved if it were to mimic what mergesort does.
+ for (java.util.SortedSet<T> set : sets) {
+ if (set != null) {
+ all.addAll(set);
+ }
+ }
+ all.forEach(consumer);
+ }
+
+ private MCUtil() {}
+
+
+ public static boolean isMainThread() {
+ return MinecraftServer.getServer().isMainThread();
+ }
+
+ private static class DelayedRunnable implements Runnable {
+
+ private final int ticks;
+ private final Runnable run;
+
+ private DelayedRunnable(int ticks, Runnable run) {
+ this.ticks = ticks;
+ this.run = run;
+ }
+
+ @Override
+ public void run() {
+ if (ticks <= 0) {
+ run.run();
+ } else {
+ scheduleTask(ticks-1, run);
+ }
+ }
+ }
+
+ public static void scheduleTask(int ticks, Runnable runnable) {
+ // We use post to main instead of process queue as we don't want to process these mid tick if
+ // Someone uses processQueueWhileWaiting
+ MinecraftServer.getServer().scheduleOnMain(new DelayedRunnable(ticks, runnable));
+ }
+
+ public static void processQueue() {
+ Runnable runnable;
+ Queue<Runnable> processQueue = getProcessQueue();
+ while ((runnable = processQueue.poll()) != null) {
+ try {
+ runnable.run();
+ } catch (Exception e) {
+ MinecraftServer.LOGGER.error("Error executing task", e);
+ }
+ }
+ }
+ public static <T> T processQueueWhileWaiting(CompletableFuture <T> future) {
+ try {
+ if (isMainThread()) {
+ while (!future.isDone()) {
+ try {
+ return future.get(1, TimeUnit.MILLISECONDS);
+ } catch (TimeoutException ignored) {
+ processQueue();
+ }
+ }
+ }
+ return future.get();
+ } catch (Exception e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ public static void ensureMain(Runnable run) {
+ ensureMain(null, run);
+ }
+ /**
+ * Ensures the target code is running on the main thread
+ * @param reason
+ * @param run
+ * @return
+ */
+ public static void ensureMain(String reason, Runnable run) {
+ if (AsyncCatcher.enabled && Thread.currentThread() != MinecraftServer.getServer().serverThread) {
+ if (reason != null) {
+ new IllegalStateException("Asynchronous " + reason + "!").printStackTrace();
+ }
+ getProcessQueue().add(run);
+ return;
+ }
+ run.run();
+ }
+
+ private static Queue<Runnable> getProcessQueue() {
+ return MinecraftServer.getServer().processQueue;
+ }
+
+ public static <T> T ensureMain(Supplier<T> run) {
+ return ensureMain(null, run);
+ }
+ /**
+ * Ensures the target code is running on the main thread
+ * @param reason
+ * @param run
+ * @param <T>
+ * @return
+ */
+ public static <T> T ensureMain(String reason, Supplier<T> run) {
+ if (AsyncCatcher.enabled && Thread.currentThread() != MinecraftServer.getServer().serverThread) {
+ if (reason != null) {
+ new IllegalStateException("Asynchronous " + reason + "! Blocking thread until it returns ").printStackTrace();
+ }
+ Waitable<T> wait = new Waitable<T>() {
+ @Override
+ protected T evaluate() {
+ return run.get();
+ }
+ };
+ getProcessQueue().add(wait);
+ try {
+ return wait.get();
+ } catch (InterruptedException | ExecutionException e) {
+ e.printStackTrace();
+ }
+ return null;
+ }
+ return run.get();
+ }
+
+ /**
+ * Calculates distance between 2 entities
+ * @param e1
+ * @param e2
+ * @return
+ */
+ public static double distance(Entity e1, Entity e2) {
+ return Math.sqrt(distanceSq(e1, e2));
+ }
+
+
+ /**
+ * Calculates distance between 2 block positions
+ * @param e1
+ * @param e2
+ * @return
+ */
+ public static double distance(BlockPosition e1, BlockPosition e2) {
+ return Math.sqrt(distanceSq(e1, e2));
+ }
+
+ /**
+ * Gets the distance between 2 positions
+ * @param x1
+ * @param y1
+ * @param z1
+ * @param x2
+ * @param y2
+ * @param z2
+ * @return
+ */
+ public static double distance(double x1, double y1, double z1, double x2, double y2, double z2) {
+ return Math.sqrt(distanceSq(x1, y1, z1, x2, y2, z2));
+ }
+
+ /**
+ * Get's the distance squared between 2 entities
+ * @param e1
+ * @param e2
+ * @return
+ */
+ public static double distanceSq(Entity e1, Entity e2) {
+ return distanceSq(e1.locX(),e1.locY(),e1.locZ(), e2.locX(),e2.locY(),e2.locZ());
+ }
+
+ /**
+ * Gets the distance sqaured between 2 block positions
+ * @param pos1
+ * @param pos2
+ * @return
+ */
+ public static double distanceSq(BlockPosition pos1, BlockPosition pos2) {
+ return distanceSq(pos1.getX(), pos1.getY(), pos1.getZ(), pos2.getX(), pos2.getY(), pos2.getZ());
+ }
+
+ /**
+ * Gets the distance squared between 2 positions
+ * @param x1
+ * @param y1
+ * @param z1
+ * @param x2
+ * @param y2
+ * @param z2
+ * @return
+ */
+ public static double distanceSq(double x1, double y1, double z1, double x2, double y2, double z2) {
+ return (x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2) + (z1 - z2) * (z1 - z2);
+ }
+
+ /**
+ * Converts a NMS World/BlockPosition to Bukkit Location
+ * @param world
+ * @param x
+ * @param y
+ * @param z
+ * @return
+ */
+ public static Location toLocation(World world, double x, double y, double z) {
+ return new Location(world.getWorld(), x, y, z);
+ }
+
+ /**
+ * Converts a NMS World/BlockPosition to Bukkit Location
+ * @param world
+ * @param pos
+ * @return
+ */
+ public static Location toLocation(World world, BlockPosition pos) {
+ return new Location(world.getWorld(), pos.getX(), pos.getY(), pos.getZ());
+ }
+
+ /**
+ * Converts an NMS entity's current location to a Bukkit Location
+ * @param entity
+ * @return
+ */
+ public static Location toLocation(Entity entity) {
+ return new Location(entity.getWorld().getWorld(), entity.locX(), entity.locY(), entity.locZ());
+ }
+
+ public static org.bukkit.block.Block toBukkitBlock(World world, BlockPosition pos) {
+ return world.getWorld().getBlockAt(pos.getX(), pos.getY(), pos.getZ());
+ }
+
+ public static BlockPosition toBlockPosition(Location loc) {
+ return new BlockPosition(loc.getBlockX(), loc.getBlockY(), loc.getBlockZ());
+ }
+
+ public static boolean isEdgeOfChunk(BlockPosition pos) {
+ final int modX = pos.getX() & 15;
+ final int modZ = pos.getZ() & 15;
+ return (modX == 0 || modX == 15 || modZ == 0 || modZ == 15);
+ }
+
+ /**
+ * Posts a task to be executed asynchronously
+ * @param run
+ */
+ public static void scheduleAsyncTask(Runnable run) {
+ asyncExecutor.execute(run);
+ }
+
+ @Nullable
+ public static TileEntityHopper getHopper(World world, BlockPosition pos) {
+ Chunk chunk = world.getChunkIfLoaded(pos.getX() >> 4, pos.getZ() >> 4);
+ if (chunk != null && chunk.getType(new BlockPosition(pos.getX(), pos.getY(), pos.getZ())).getBlock() == Blocks.HOPPER) {
+ TileEntity tileEntity = chunk.getTileEntityImmediately(pos);
+ if (tileEntity instanceof TileEntityHopper) {
+ return (TileEntityHopper) tileEntity;
+ }
+ }
+ return null;
+ }
+
+ @Nonnull
+ public static World getNMSWorld(@Nonnull org.bukkit.World world) {
+ return ((CraftWorld) world).getHandle();
+ }
+
+ public static World getNMSWorld(@Nonnull org.bukkit.entity.Entity entity) {
+ return getNMSWorld(entity.getWorld());
+ }
+
+ public static RayTrace.FluidCollisionOption getNMSFluidCollisionOption(TargetBlockInfo.FluidMode fluidMode) {
+ if (fluidMode == TargetBlockInfo.FluidMode.NEVER) {
+ return RayTrace.FluidCollisionOption.NONE;
+ }
+ if (fluidMode == TargetBlockInfo.FluidMode.SOURCE_ONLY) {
+ return RayTrace.FluidCollisionOption.SOURCE_ONLY;
+ }
+ if (fluidMode == TargetBlockInfo.FluidMode.ALWAYS) {
+ return RayTrace.FluidCollisionOption.ANY;
+ }
+ return null;
+ }
+
+ public static BlockFace toBukkitBlockFace(EnumDirection enumDirection) {
+ switch (enumDirection) {
+ case DOWN:
+ return BlockFace.DOWN;
+ case UP:
+ return BlockFace.UP;
+ case NORTH:
+ return BlockFace.NORTH;
+ case SOUTH:
+ return BlockFace.SOUTH;
+ case WEST:
+ return BlockFace.WEST;
+ case EAST:
+ return BlockFace.EAST;
+ default:
+ return null;
+ }
+ }
+}
diff --git a/src/main/java/net/minecraft/server/NBTTagCompound.java b/src/main/java/net/minecraft/server/NBTTagCompound.java
index e85b24a327..75604dbc69 100644
--- a/src/main/java/net/minecraft/server/NBTTagCompound.java
+++ b/src/main/java/net/minecraft/server/NBTTagCompound.java
@@ -60,7 +60,7 @@ public class NBTTagCompound implements NBTBase {
return "TAG_Compound";
}
};
- private final Map<String, NBTBase> map;
+ public final Map<String, NBTBase> map; // Paper
private NBTTagCompound(Map<String, NBTBase> map) {
this.map = map;
@@ -123,11 +123,15 @@ public class NBTTagCompound implements NBTBase {
this.map.put(s, NBTTagLong.a(i));
}
+ public void setUUID(String prefix, UUID uuid) { a(prefix, uuid); } // Paper - OBFHELPER
public void a(String s, UUID uuid) {
this.setLong(s + "Most", uuid.getMostSignificantBits());
this.setLong(s + "Least", uuid.getLeastSignificantBits());
}
+
+ @Nullable public UUID getUUID(String prefix) { return a(prefix); } // Paper - OBFHELPER
+ @Nullable
public UUID a(String s) {
return new UUID(this.getLong(s + "Most"), this.getLong(s + "Least"));
}
diff --git a/src/main/java/net/minecraft/server/NetworkManager.java b/src/main/java/net/minecraft/server/NetworkManager.java
index 6700582e36..3ccf166366 100644
--- a/src/main/java/net/minecraft/server/NetworkManager.java
+++ b/src/main/java/net/minecraft/server/NetworkManager.java
@@ -159,6 +159,7 @@ public class NetworkManager extends SimpleChannelInboundHandler<Packet<?>> {
}
+ private void dispatchPacket(Packet<?> packet, @Nullable GenericFutureListener<? extends Future<? super Void>> genericFutureListener) { this.b(packet, genericFutureListener); } // Paper - OBFHELPER
private void b(Packet<?> packet, @Nullable GenericFutureListener<? extends Future<? super Void>> genericfuturelistener) {
EnumProtocol enumprotocol = EnumProtocol.a(packet);
EnumProtocol enumprotocol1 = (EnumProtocol) this.channel.attr(NetworkManager.c).get();
@@ -199,6 +200,7 @@ public class NetworkManager extends SimpleChannelInboundHandler<Packet<?>> {
}
+ private void sendPacketQueue() { this.o(); } // Paper - OBFHELPER
private void o() {
if (this.channel != null && this.channel.isOpen()) {
Queue queue = this.packetQueue;
@@ -327,9 +329,9 @@ public class NetworkManager extends SimpleChannelInboundHandler<Packet<?>> {
static class QueuedPacket {
- private final Packet<?> a;
+ private final Packet<?> a; private final Packet<?> getPacket() { return this.a; } // Paper - OBFHELPER
@Nullable
- private final GenericFutureListener<? extends Future<? super Void>> b;
+ private final GenericFutureListener<? extends Future<? super Void>> b; private final GenericFutureListener<? extends Future<? super Void>> getGenericFutureListener() { return this.b; } // Paper - OBFHELPER
public QueuedPacket(Packet<?> packet, @Nullable GenericFutureListener<? extends Future<? super Void>> genericfuturelistener) {
this.a = packet;
diff --git a/src/main/java/net/minecraft/server/PacketDataSerializer.java b/src/main/java/net/minecraft/server/PacketDataSerializer.java
index 81b6f4581f..d9574a9ace 100644
--- a/src/main/java/net/minecraft/server/PacketDataSerializer.java
+++ b/src/main/java/net/minecraft/server/PacketDataSerializer.java
@@ -33,6 +33,7 @@ public class PacketDataSerializer extends ByteBuf {
this.a = bytebuf;
}
+ public static int countBytes(int i) { return PacketDataSerializer.a(i); } // Paper - OBFHELPER
public static int a(int i) {
for (int j = 1; j < 5; ++j) {
if ((i & -1 << j * 7) == 0) {
diff --git a/src/main/java/net/minecraft/server/PacketEncoder.java b/src/main/java/net/minecraft/server/PacketEncoder.java
index 90223deae3..63c4dbd327 100644
--- a/src/main/java/net/minecraft/server/PacketEncoder.java
+++ b/src/main/java/net/minecraft/server/PacketEncoder.java
@@ -42,6 +42,7 @@ public class PacketEncoder extends MessageToByteEncoder<Packet<?>> {
packet.b(packetdataserializer);
} catch (Throwable throwable) {
PacketEncoder.LOGGER.error(throwable);
+ throwable.printStackTrace(); // Paper - WHAT WAS IT? WHO DID THIS TO YOU? WHAT DID YOU SEE?
if (packet.a()) {
throw new SkipEncodeException(throwable);
} else {
diff --git a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
index 677e3e5f68..3a1d0deb0d 100644
--- a/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
+++ b/src/main/java/net/minecraft/server/PacketPlayOutMapChunk.java
@@ -17,7 +17,7 @@ public class PacketPlayOutMapChunk implements Packet<PacketListenerPlayOut> {
private NBTTagCompound d;
@Nullable
private BiomeStorage e;
- private byte[] f;
+ private byte[] f; private byte[] getData() { return this.f; } // Paper - OBFHELPER
private List<NBTTagCompound> g;
private boolean h;
@@ -129,6 +129,7 @@ public class PacketPlayOutMapChunk implements Packet<PacketListenerPlayOut> {
return bytebuf;
}
+ public int writeChunk(PacketDataSerializer packetDataSerializer, Chunk chunk, int chunkSectionSelector) { return this.a(packetDataSerializer, chunk, chunkSectionSelector); } // Paper - OBFHELPER
public int a(PacketDataSerializer packetdataserializer, Chunk chunk, int i) {
int j = 0;
ChunkSection[] achunksection = chunk.getSections();
diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
index 5c5bf010d0..6e9f402fb0 100644
--- a/src/main/java/net/minecraft/server/PlayerChunk.java
+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
@@ -19,9 +19,9 @@ public class PlayerChunk {
private static final List<ChunkStatus> CHUNK_STATUSES = ChunkStatus.a();
private static final PlayerChunk.State[] CHUNK_STATES = PlayerChunk.State.values();
private final AtomicReferenceArray<CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>>> statusFutures;
- private volatile CompletableFuture<Either<Chunk, PlayerChunk.Failure>> fullChunkFuture;
- private volatile CompletableFuture<Either<Chunk, PlayerChunk.Failure>> tickingFuture;
- private volatile CompletableFuture<Either<Chunk, PlayerChunk.Failure>> entityTickingFuture;
+ private volatile CompletableFuture<Either<Chunk, PlayerChunk.Failure>> fullChunkFuture; private int fullChunkCreateCount; private volatile boolean isFullChunkReady; // Paper - cache chunk ticking stage
+ private volatile CompletableFuture<Either<Chunk, PlayerChunk.Failure>> tickingFuture; private volatile boolean isTickingReady; // Paper - cache chunk ticking stage
+ private volatile CompletableFuture<Either<Chunk, PlayerChunk.Failure>> entityTickingFuture; private volatile boolean isEntityTickingReady; // Paper - cache chunk ticking stage
private CompletableFuture<IChunkAccess> chunkSave;
public int oldTicketLevel;
private int ticketLevel;
@@ -38,6 +38,8 @@ public class PlayerChunk {
public final PlayerChunk.d players;
private boolean hasBeenLoaded;
+ private final PlayerChunkMap chunkMap; // Paper
+
public PlayerChunk(ChunkCoordIntPair chunkcoordintpair, int i, LightEngine lightengine, PlayerChunk.c playerchunk_c, PlayerChunk.d playerchunk_d) {
this.statusFutures = new AtomicReferenceArray(PlayerChunk.CHUNK_STATUSES.size());
this.fullChunkFuture = PlayerChunk.UNLOADED_CHUNK_FUTURE;
@@ -53,8 +55,47 @@ public class PlayerChunk {
this.ticketLevel = this.oldTicketLevel;
this.n = this.oldTicketLevel;
this.a(i);
+ this.chunkMap = (PlayerChunkMap)playerchunk_d; // Paper
+ }
+
+ // Paper start
+ @Nullable
+ public final Chunk getEntityTickingChunk() {
+ CompletableFuture<Either<Chunk, PlayerChunk.Failure>> completablefuture = this.entityTickingFuture;
+ Either<Chunk, PlayerChunk.Failure> either = completablefuture.getNow(null);
+
+ return either == null ? null : either.left().orElse(null);
+ }
+
+ @Nullable
+ public final Chunk getTickingChunk() {
+ CompletableFuture<Either<Chunk, PlayerChunk.Failure>> completablefuture = this.tickingFuture;
+ Either<Chunk, PlayerChunk.Failure> either = completablefuture.getNow(null);
+
+ return either == null ? null : either.left().orElse(null);
+ }
+
+ @Nullable
+ public final Chunk getFullReadyChunk() {
+ CompletableFuture<Either<Chunk, PlayerChunk.Failure>> completablefuture = this.fullChunkFuture;
+ Either<Chunk, PlayerChunk.Failure> either = completablefuture.getNow(null);
+
+ return either == null ? null : either.left().orElse(null);
+ }
+
+ public final boolean isEntityTickingReady() {
+ return this.isEntityTickingReady;
}
+ public final boolean isTickingReady() {
+ return this.isTickingReady;
+ }
+
+ public final boolean isFullChunkReady() {
+ return this.isFullChunkReady;
+ }
+ // Paper end
+
// CraftBukkit start
public Chunk getFullChunk() {
if (!getChunkState(this.oldTicketLevel).isAtLeast(PlayerChunk.State.BORDER)) return null; // note: using oldTicketLevel for isLoaded checks
@@ -63,6 +104,14 @@ public class PlayerChunk {
return either == null ? null : (Chunk) either.left().orElse(null);
}
// CraftBukkit end
+ // Paper start - "real" get full chunk immediately
+ public Chunk getFullChunkIfCached() {
+ // Note: Copied from above without ticket level check
+ CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> statusFuture = this.getStatusFutureUnchecked(ChunkStatus.FULL);
+ Either<IChunkAccess, PlayerChunk.Failure> either = (Either<IChunkAccess, PlayerChunk.Failure>) statusFuture.getNow(null);
+ return either == null ? null : (Chunk) either.left().orElse(null);
+ }
+ // Paper end
public CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> getStatusFutureUnchecked(ChunkStatus chunkstatus) {
CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> completablefuture = (CompletableFuture) this.statusFutures.get(chunkstatus.c());
@@ -74,14 +123,17 @@ public class PlayerChunk {
return getChunkStatus(this.ticketLevel).b(chunkstatus) ? this.getStatusFutureUnchecked(chunkstatus) : PlayerChunk.UNLOADED_CHUNK_ACCESS_FUTURE;
}
+ public final CompletableFuture<Either<Chunk, PlayerChunk.Failure>> getTickingFuture() { return this.a(); } // Paper - OBFHELPER
public CompletableFuture<Either<Chunk, PlayerChunk.Failure>> a() {
return this.tickingFuture;
}
+ public final CompletableFuture<Either<Chunk, PlayerChunk.Failure>> getEntityTickingFuture() { return this.b(); } // Paper - OBFHELPER
public CompletableFuture<Either<Chunk, PlayerChunk.Failure>> b() {
return this.entityTickingFuture;
}
+ public final CompletableFuture<Either<Chunk, PlayerChunk.Failure>> getFullChunkFuture() { return this.c(); } // Paper - OBFHELPER
public CompletableFuture<Either<Chunk, PlayerChunk.Failure>> c() {
return this.fullChunkFuture;
}
@@ -335,13 +387,27 @@ public class PlayerChunk {
this.hasBeenLoaded |= flag3;
if (!flag2 && flag3) {
- this.fullChunkFuture = playerchunkmap.b(this);
+ // Paper start - cache ticking ready status
+ int expectCreateCount = ++this.fullChunkCreateCount;
+ this.fullChunkFuture = playerchunkmap.b(this); this.fullChunkFuture.thenAccept((either) -> {
+ if (either.left().isPresent() && PlayerChunk.this.fullChunkCreateCount == expectCreateCount) {
+ // note: Here is a very good place to add callbacks to logic waiting on this.
+ Chunk fullChunk = either.left().get();
+ PlayerChunk.this.isFullChunkReady = true;
+ fullChunk.playerChunk = PlayerChunk.this;
+
+
+ }
+ });
+ // Paper end
this.a(this.fullChunkFuture);
}
if (flag2 && !flag3) {
completablefuture = this.fullChunkFuture;
this.fullChunkFuture = PlayerChunk.UNLOADED_CHUNK_FUTURE;
+ ++this.fullChunkCreateCount; // Paper - cache ticking ready status
+ this.isFullChunkReady = false; // Paper - cache ticking ready status
this.a(((CompletableFuture<Either<Chunk, PlayerChunk.Failure>>) completablefuture).thenApply((either1) -> { // CraftBukkit - decompile error
playerchunkmap.getClass();
return either1.ifLeft(playerchunkmap::a);
@@ -352,12 +418,24 @@ public class PlayerChunk {
boolean flag5 = playerchunk_state1.isAtLeast(PlayerChunk.State.TICKING);
if (!flag4 && flag5) {
- this.tickingFuture = playerchunkmap.a(this);
+ // Paper start - cache ticking ready status
+ this.tickingFuture = playerchunkmap.a(this); this.tickingFuture.thenAccept((either) -> {
+ if (either.left().isPresent()) {
+ // note: Here is a very good place to add callbacks to logic waiting on this.
+ Chunk tickingChunk = either.left().get();
+ PlayerChunk.this.isTickingReady = true;
+
+
+
+
+ }
+ });
+ // Paper end
this.a(this.tickingFuture);
}
if (flag4 && !flag5) {
- this.tickingFuture.complete(PlayerChunk.UNLOADED_CHUNK);
+ this.tickingFuture.complete(PlayerChunk.UNLOADED_CHUNK); this.isTickingReady = false; // Paper - cache chunk ticking stage
this.tickingFuture = PlayerChunk.UNLOADED_CHUNK_FUTURE;
}
@@ -369,12 +447,24 @@ public class PlayerChunk {
throw (IllegalStateException) SystemUtils.c(new IllegalStateException());
}
- this.entityTickingFuture = playerchunkmap.b(this.location);
+ // Paper start - cache ticking ready status
+ this.entityTickingFuture = playerchunkmap.b(this.location); this.entityTickingFuture.thenAccept((either) -> {
+ if (either.left().isPresent()) {
+ // note: Here is a very good place to add callbacks to logic waiting on this.
+ Chunk entityTickingChunk = either.left().get();
+ PlayerChunk.this.isEntityTickingReady = true;
+
+
+
+
+ }
+ });
+ // Paper end
this.a(this.entityTickingFuture);
}
if (flag6 && !flag7) {
- this.entityTickingFuture.complete(PlayerChunk.UNLOADED_CHUNK);
+ this.entityTickingFuture.complete(PlayerChunk.UNLOADED_CHUNK); this.isEntityTickingReady = false; // Paper - cache chunk ticking stage
this.entityTickingFuture = PlayerChunk.UNLOADED_CHUNK_FUTURE;
}
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index 7ad30548e2..93d838ec2d 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -99,6 +99,35 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
};
// CraftBukkit end
+ // Paper start - distance maps
+ private final com.destroystokyo.paper.util.misc.PooledLinkedHashSets<EntityPlayer> pooledLinkedPlayerHashSets = new com.destroystokyo.paper.util.misc.PooledLinkedHashSets<>();
+
+ void addPlayerToDistanceMaps(EntityPlayer player) {
+ this.updateMaps(player);
+
+
+
+ }
+
+ void removePlayerFromDistanceMaps(EntityPlayer player) {
+
+
+
+
+ }
+
+ void updateMaps(EntityPlayer player) {
+ int chunkX = MCUtil.getChunkCoordinate(player.locX());
+ int chunkZ = MCUtil.getChunkCoordinate(player.locZ());
+
+
+
+
+ }
+
+
+ // Paper end
+
public PlayerChunkMap(WorldServer worldserver, File file, DataFixer datafixer, DefinedStructureManager definedstructuremanager, Executor executor, IAsyncTaskHandler<Runnable> iasynctaskhandler, ILightAccess ilightaccess, ChunkGenerator<?> chunkgenerator, WorldLoadListener worldloadlistener, Supplier<WorldPersistentData> supplier, int i) {
super(new File(worldserver.getWorldProvider().getDimensionManager().a(file), "region"), datafixer);
this.visibleChunks = this.updatingChunks.clone();
@@ -984,6 +1013,8 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
}
}
+ this.updateMaps(entityplayer); // Paper - distance maps
+
}
@Override
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 0c496ee0a0..6a681d694e 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -67,9 +67,9 @@ public class PlayerConnection implements PacketListenerPlayIn {
private final MinecraftServer minecraftServer;
public EntityPlayer player;
private int e;
- private long lastKeepAlive;
- private boolean awaitingKeepAlive;
- private long h;
+ private long lastKeepAlive; private void setLastPing(long lastPing) { this.lastKeepAlive = lastPing;}; private long getLastPing() { return this.lastKeepAlive;}; // Paper - OBFHELPER
+ private boolean awaitingKeepAlive; private void setPendingPing(boolean isPending) { this.awaitingKeepAlive = isPending;}; private boolean isPendingPing() { return this.awaitingKeepAlive;}; // Paper - OBFHELPER
+ private long h; private void setKeepAliveID(long keepAliveID) { this.h = keepAliveID;}; private long getKeepAliveID() {return this.h; }; // Paper - OBFHELPER
// CraftBukkit start - multithreaded fields
private volatile int chatThrottle;
private static final AtomicIntegerFieldUpdater chatSpamField = AtomicIntegerFieldUpdater.newUpdater(PlayerConnection.class, "chatThrottle");
diff --git a/src/main/java/net/minecraft/server/PlayerInventory.java b/src/main/java/net/minecraft/server/PlayerInventory.java
index 08768a3c87..d103cfaace 100644
--- a/src/main/java/net/minecraft/server/PlayerInventory.java
+++ b/src/main/java/net/minecraft/server/PlayerInventory.java
@@ -17,7 +17,7 @@ public class PlayerInventory implements IInventory, INamableTileEntity {
public final NonNullList<ItemStack> items;
public final NonNullList<ItemStack> armor;
public final NonNullList<ItemStack> extraSlots;
- private final List<NonNullList<ItemStack>> f;
+ private final List<NonNullList<ItemStack>> f;List<NonNullList<ItemStack>> getComponents() { return f; } // Paper - OBFHELPER
public int itemInHandIndex;
public final EntityHuman player;
private ItemStack carried;
diff --git a/src/main/java/net/minecraft/server/PotionUtil.java b/src/main/java/net/minecraft/server/PotionUtil.java
index b3824898da..bf4172be52 100644
--- a/src/main/java/net/minecraft/server/PotionUtil.java
+++ b/src/main/java/net/minecraft/server/PotionUtil.java
@@ -110,6 +110,7 @@ public class PotionUtil {
return nbttagcompound == null ? Potions.EMPTY : PotionRegistry.a(nbttagcompound.getString("Potion"));
}
+ public static ItemStack addPotionToItemStack(ItemStack itemstack, PotionRegistry potionregistry) { return a(itemstack, potionregistry); } // Paper - OBFHELPER
public static ItemStack a(ItemStack itemstack, PotionRegistry potionregistry) {
MinecraftKey minecraftkey = IRegistry.POTION.getKey(potionregistry);
diff --git a/src/main/java/net/minecraft/server/ProtoChunk.java b/src/main/java/net/minecraft/server/ProtoChunk.java
index 6e65306a27..39339fa275 100644
--- a/src/main/java/net/minecraft/server/ProtoChunk.java
+++ b/src/main/java/net/minecraft/server/ProtoChunk.java
@@ -80,6 +80,18 @@ public class ProtoChunk implements IChunkAccess {
}
+ // Paper start - If loaded util
+ @Override
+ public Fluid getFluidIfLoaded(BlockPosition blockposition) {
+ return this.getFluid(blockposition);
+ }
+
+ @Override
+ public IBlockData getTypeIfLoaded(BlockPosition blockposition) {
+ return this.getType(blockposition);
+ }
+ // Paper end
+
@Override
public IBlockData getType(BlockPosition blockposition) {
int i = blockposition.getY();
diff --git a/src/main/java/net/minecraft/server/RegionFile.java b/src/main/java/net/minecraft/server/RegionFile.java
index 7b6e0e86b0..187c4e0f58 100644
--- a/src/main/java/net/minecraft/server/RegionFile.java
+++ b/src/main/java/net/minecraft/server/RegionFile.java
@@ -88,6 +88,7 @@ public class RegionFile implements AutoCloseable {
return this.d.resolve(s);
}
+ @Nullable public synchronized DataInputStream getReadStream(ChunkCoordIntPair chunkCoordIntPair) throws IOException { return a(chunkCoordIntPair);} // Paper - OBFHELPER
@Nullable
public synchronized DataInputStream a(ChunkCoordIntPair chunkcoordintpair) throws IOException {
int i = this.getOffset(chunkcoordintpair);
diff --git a/src/main/java/net/minecraft/server/RegionLimitedWorldAccess.java b/src/main/java/net/minecraft/server/RegionLimitedWorldAccess.java
index 8c123f265e..9d0e8c2d43 100644
--- a/src/main/java/net/minecraft/server/RegionLimitedWorldAccess.java
+++ b/src/main/java/net/minecraft/server/RegionLimitedWorldAccess.java
@@ -108,6 +108,26 @@ public class RegionLimitedWorldAccess implements GeneratorAccess {
return i >= ichunkaccess.getPos().x && i <= ichunkaccess1.getPos().x && j >= ichunkaccess.getPos().z && j <= ichunkaccess1.getPos().z;
}
+ // Paper start - if loaded util
+ @Nullable
+ @Override
+ public IChunkAccess getChunkIfLoadedImmediately(int x, int z) {
+ return this.getChunkAt(x, z, ChunkStatus.FULL, false);
+ }
+
+ @Override
+ public IBlockData getTypeIfLoaded(BlockPosition blockposition) {
+ IChunkAccess chunk = this.getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4);
+ return chunk == null ? null : chunk.getType(blockposition);
+ }
+
+ @Override
+ public Fluid getFluidIfLoaded(BlockPosition blockposition) {
+ IChunkAccess chunk = this.getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4);
+ return chunk == null ? null : chunk.getFluid(blockposition);
+ }
+ // Paper end
+
@Override
public IBlockData getType(BlockPosition blockposition) {
return this.getChunkAt(blockposition.getX() >> 4, blockposition.getZ() >> 4).getType(blockposition);
diff --git a/src/main/java/net/minecraft/server/RegistryBlockID.java b/src/main/java/net/minecraft/server/RegistryBlockID.java
index 4efcb8b595..60948afa4e 100644
--- a/src/main/java/net/minecraft/server/RegistryBlockID.java
+++ b/src/main/java/net/minecraft/server/RegistryBlockID.java
@@ -57,6 +57,7 @@ public class RegistryBlockID<T> implements Registry<T> {
return Iterators.filter(this.c.iterator(), Predicates.notNull());
}
+ public int size() { return this.a(); } // Paper - OBFHELPER
public int a() {
return this.b.size();
}
diff --git a/src/main/java/net/minecraft/server/SystemUtils.java b/src/main/java/net/minecraft/server/SystemUtils.java
index 7b92ecfff9..7e224ebeff 100644
--- a/src/main/java/net/minecraft/server/SystemUtils.java
+++ b/src/main/java/net/minecraft/server/SystemUtils.java
@@ -58,7 +58,7 @@ public class SystemUtils {
}
public static long getMonotonicNanos() {
- return SystemUtils.a.getAsLong();
+ return System.nanoTime(); // Paper
}
public static long getTimeMillis() {
diff --git a/src/main/java/net/minecraft/server/TicketType.java b/src/main/java/net/minecraft/server/TicketType.java
index f82db93f88..75ab9f185b 100644
--- a/src/main/java/net/minecraft/server/TicketType.java
+++ b/src/main/java/net/minecraft/server/TicketType.java
@@ -21,6 +21,7 @@ public class TicketType<T> {
public static final TicketType<ChunkCoordIntPair> UNKNOWN = a("unknown", Comparator.comparingLong(ChunkCoordIntPair::pair), 1);
public static final TicketType<Unit> PLUGIN = a("plugin", (a, b) -> 0); // CraftBukkit
public static final TicketType<org.bukkit.plugin.Plugin> PLUGIN_TICKET = a("plugin_ticket", (plugin1, plugin2) -> plugin1.getClass().getName().compareTo(plugin2.getClass().getName())); // CraftBukkit
+ public static final TicketType<Long> FUTURE_AWAIT = a("future_await", Long::compareTo); // Paper
public static <T> TicketType<T> a(String s, Comparator<T> comparator) {
return new TicketType<>(s, comparator, 0L);
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 2e1eabba14..2a4fa455ff 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -22,6 +22,7 @@ import org.bukkit.craftbukkit.SpigotTimings; // Spigot
import org.bukkit.craftbukkit.CraftServer;
import org.bukkit.craftbukkit.CraftWorld;
import org.bukkit.craftbukkit.block.CapturedBlockState;
+import org.bukkit.craftbukkit.block.CraftBlockState;
import org.bukkit.craftbukkit.block.data.CraftBlockData;
import org.bukkit.event.block.BlockPhysicsEvent;
// CraftBukkit end
@@ -183,6 +184,39 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
return (Chunk) this.getChunkAt(i, j, ChunkStatus.FULL);
}
+ // Paper start - if loaded
+ @Nullable
+ @Override
+ public IChunkAccess getChunkIfLoadedImmediately(int x, int z) {
+ return ((ChunkProviderServer)this.chunkProvider).getChunkAtIfLoadedImmediately(x, z);
+ }
+
+ @Override
+ public IBlockData getTypeIfLoaded(BlockPosition blockposition) {
+ // CraftBukkit start - tree generation
+ if (captureTreeGeneration) {
+ CraftBlockState previous = capturedBlockStates.get(blockposition);
+ if (previous != null) {
+ return previous.getHandle();
+ }
+ }
+ // CraftBukkit end
+ if (!isValidLocation(blockposition)) {
+ return Blocks.AIR.getBlockData();
+ }
+ IChunkAccess chunk = this.getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4);
+
+ return chunk == null ? null : chunk.getType(blockposition);
+ }
+
+ @Override
+ public Fluid getFluidIfLoaded(BlockPosition blockposition) {
+ IChunkAccess chunk = this.getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4);
+
+ return chunk == null ? null : chunk.getFluid(blockposition);
+ }
+ // Paper end
+
@Override
public IChunkAccess getChunkAt(int i, int j, ChunkStatus chunkstatus, boolean flag) {
IChunkAccess ichunkaccess = this.chunkProvider.getChunkAt(i, j, chunkstatus, flag);
@@ -336,8 +370,9 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
public void a(BlockPosition blockposition, IBlockData iblockdata, IBlockData iblockdata1) {}
- @Override
- public boolean a(BlockPosition blockposition, boolean flag) {
+ public boolean setAir(BlockPosition blockposition) { return this.a(blockposition, false); } // Paper - OBFHELPER
+ public boolean setAir(BlockPosition blockposition, boolean moved) { return this.a(blockposition, moved); } // Paper - OBFHELPER
+ @Override public boolean a(BlockPosition blockposition, boolean flag) { // Paper - OBFHELPER
Fluid fluid = this.getFluid(blockposition);
return this.setTypeAndData(blockposition, fluid.getBlockData(), 3 | (flag ? 64 : 0));
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index d5014abc9d..8a5ac6f69b 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -973,6 +973,7 @@ public class WorldServer extends World {
}
this.registerEntity(entityplayer);
+ this.getChunkProvider().playerChunkMap.addPlayerToDistanceMaps(entityplayer); // Paper - distance maps
}
// CraftBukkit start
@@ -1115,6 +1116,7 @@ public class WorldServer extends World {
EntityPlayer entityplayer = (EntityPlayer) entity;
this.players.remove(entityplayer);
+ this.getChunkProvider().playerChunkMap.removePlayerFromDistanceMaps(entityplayer); // Paper - distance maps
}
this.getScoreboard().a(entity);
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
index e181df6f4d..4a9132c701 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
@@ -85,6 +85,7 @@ public final class CraftItemStack extends ItemStack {
}
net.minecraft.server.ItemStack handle;
+ public net.minecraft.server.ItemStack getHandle() { return handle; } // Paper
/**
* Mirror
diff --git a/src/main/java/org/bukkit/craftbukkit/util/DummyGeneratorAccess.java b/src/main/java/org/bukkit/craftbukkit/util/DummyGeneratorAccess.java
index d8358a0f03..d0b813008c 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/DummyGeneratorAccess.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/DummyGeneratorAccess.java
@@ -196,4 +196,22 @@ public class DummyGeneratorAccess implements GeneratorAccess {
public boolean a(BlockPosition blockposition, boolean flag, Entity entity) {
throw new UnsupportedOperationException("Not supported yet.");
}
+
+ // Paper start - if loaded util
+ @javax.annotation.Nullable
+ @Override
+ public IChunkAccess getChunkIfLoadedImmediately(int x, int z) {
+ throw new UnsupportedOperationException("Not supported yet.");
+ }
+
+ @Override
+ public IBlockData getTypeIfLoaded(BlockPosition blockposition) {
+ throw new UnsupportedOperationException("Not supported yet.");
+ }
+
+ @Override
+ public Fluid getFluidIfLoaded(BlockPosition blockposition) {
+ throw new UnsupportedOperationException("Not supported yet.");
+ }
+ // Paper end
}
diff --git a/src/main/java/org/bukkit/craftbukkit/util/UnsafeList.java b/src/main/java/org/bukkit/craftbukkit/util/UnsafeList.java
index 1aec70a1f1..f72c13beda 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/UnsafeList.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/UnsafeList.java
@@ -17,7 +17,7 @@ import java.util.RandomAccess;
public class UnsafeList<E> extends AbstractList<E> implements List<E>, RandomAccess, Cloneable, Serializable {
private static final long serialVersionUID = 8683452581112892191L;
- private transient Object[] data;
+ private transient Object[] data; public final Object[] getRawDataArray() { return this.data; } // Paper - expose for raw get
private int size;
private int initialCapacity;
--
2.26.2
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