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Paper/Spigot-Server-Patches/0005-MC-Utils.patch
Aikar 6a5948b316
PreCreatureSpawnEvent - Closes #917 
Adds an event to fire before an Entity is created, so that plugins that need to cancel
CreatureSpawnEvent can do so from this event instead.

Cancelling CreatureSpawnEvent rapidly causes a lot of garbage collection and CPU waste
as it's done after the Entity object has been fully created.

Mob Limiting plugins and blanket "ban this type of monster" plugins should use this event
instead and save a lot of server resources.

See: https://github.com/PaperMC/Paper/issues/917
2018-01-14 17:12:13 -05:00

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From c44f974b3550e4eadae976624a6184c3fd8d78a3 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/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 4bbebb25a..c4d9344a7 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -20,7 +20,7 @@ import org.bukkit.Server; // CraftBukkit
public class Chunk {
private static final Logger e = 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 final byte[] g;
private final int[] h;
@@ -675,6 +675,7 @@ public class Chunk {
return !block.isTileEntity() ? null : ((ITileEntity) block).a(this.world, iblockdata.getBlock().toLegacyData(iblockdata));
}
+ @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
diff --git a/src/main/java/net/minecraft/server/ChunkCoordIntPair.java b/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
index 239440888..aafd23beb 100644
--- a/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
+++ b/src/main/java/net/minecraft/server/ChunkCoordIntPair.java
@@ -15,6 +15,8 @@ public class ChunkCoordIntPair {
this.z = blockposition.getZ() >> 4;
}
+ public static long asLong(final BlockPosition pos) { return a(pos.getX() >> 4, pos.getZ() >> 4); } // Paper - OBFHELPER
+ public static long asLong(int x, int z) { return a(x, z); } // Paper - OBFHELPER
public static long a(int i, int j) {
return (long) i & 4294967295L | ((long) j & 4294967295L) << 32;
}
diff --git a/src/main/java/net/minecraft/server/DataPaletteBlock.java b/src/main/java/net/minecraft/server/DataPaletteBlock.java
index 1f2fe87b6..2cb462b8e 100644
--- a/src/main/java/net/minecraft/server/DataPaletteBlock.java
+++ b/src/main/java/net/minecraft/server/DataPaletteBlock.java
@@ -5,7 +5,7 @@ import javax.annotation.Nullable;
public class DataPaletteBlock implements DataPaletteExpandable {
private static final DataPalette d = new DataPaletteGlobal();
- protected static final IBlockData a = Blocks.AIR.getBlockData();
+ protected static final IBlockData a = Blocks.AIR.getBlockData(); public static final IBlockData DEFAULT_BLOCK_DATA = DataPaletteBlock.a; // Paper - OBFHELPER
protected DataBits b;
protected DataPalette c;
private int e;
diff --git a/src/main/java/net/minecraft/server/EntityTypes.java b/src/main/java/net/minecraft/server/EntityTypes.java
index ba461ad48..66c270493 100644
--- a/src/main/java/net/minecraft/server/EntityTypes.java
+++ b/src/main/java/net/minecraft/server/EntityTypes.java
@@ -237,6 +237,10 @@ public class EntityTypes {
a("zombie_villager", 5651507, 7969893);
EntityTypes.d.add(EntityTypes.a);
}
+ // Paper start
+ public static Map<Class<? extends Entity>, MinecraftKey> clsToKeyMap = new java.util.HashMap<>();
+ public static Map<Class<? extends Entity>, org.bukkit.entity.EntityType> clsToTypeMap = new java.util.HashMap<>();
+ // Paper end
private static void a(int i, String s, Class<? extends Entity> oclass, String s1) {
try {
@@ -252,6 +256,8 @@ public class EntityTypes {
EntityTypes.b.a(i, minecraftkey, oclass);
EntityTypes.d.add(minecraftkey);
+ clsToKeyMap.put(oclass, minecraftkey); // Paper
+ clsToTypeMap.put(oclass, org.bukkit.entity.EntityType.fromName(s)); // Paper
while (EntityTypes.g.size() <= i) {
EntityTypes.g.add(null); // Paper - Decompile fix
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 000000000..a4b0901cf
--- /dev/null
+++ b/src/main/java/net/minecraft/server/MCUtil.java
@@ -0,0 +1,201 @@
+package net.minecraft.server;
+
+import com.google.common.util.concurrent.ThreadFactoryBuilder;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.util.Waitable;
+import org.spigotmc.AsyncCatcher;
+
+import javax.annotation.Nullable;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+import java.util.function.Supplier;
+import java.util.regex.Pattern;
+
+public final class MCUtil {
+ private static final Executor asyncExecutor = Executors.newSingleThreadExecutor(new ThreadFactoryBuilder().setNameFormat("Paper Async Task Handler Thread - %1$d").build());
+
+ private MCUtil() {}
+
+
+ /**
+ * 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().primaryThread) {
+ new IllegalStateException( "Asynchronous " + reason + "! Blocking thread until it returns ").printStackTrace();
+ Waitable<T> wait = new Waitable<T>() {
+ @Override
+ protected T evaluate() {
+ return run.get();
+ }
+ };
+ MinecraftServer.getServer().processQueue.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 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);
+ }
+
+ /**
+ * Gets a chunk without changing its boolean for should unload
+ * @param world
+ * @param x
+ * @param z
+ * @return
+ */
+ @Nullable
+ public static Chunk getLoadedChunkWithoutMarkingActive(World world, int x, int z) {
+ return ((ChunkProviderServer) world.chunkProvider).chunks.get(ChunkCoordIntPair.a(x, z));
+ }
+
+ /**
+ * Gets a chunk without changing its boolean for should unload
+ * @param provider
+ * @param x
+ * @param z
+ * @return
+ */
+ @Nullable
+ public static Chunk getLoadedChunkWithoutMarkingActive(IChunkProvider provider, int x, int z) {
+ return ((ChunkProviderServer)provider).chunks.get(ChunkCoordIntPair.a(x, z));
+ }
+
+ /**
+ * 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.getBlockData(pos).getBlock() == Blocks.HOPPER) {
+ TileEntity tileEntity = chunk.getTileEntityImmediately(pos);
+ if (tileEntity instanceof TileEntityHopper) {
+ return (TileEntityHopper) tileEntity;
+ }
+ }
+ return null;
+ }
+}
diff --git a/src/main/java/net/minecraft/server/NBTTagCompound.java b/src/main/java/net/minecraft/server/NBTTagCompound.java
index aa1ca6d91..e15c23367 100644
--- a/src/main/java/net/minecraft/server/NBTTagCompound.java
+++ b/src/main/java/net/minecraft/server/NBTTagCompound.java
@@ -22,7 +22,7 @@ public class NBTTagCompound extends NBTBase {
private static final Logger b = LogManager.getLogger();
private static final Pattern c = Pattern.compile("[A-Za-z0-9._+-]+");
- private final Map<String, NBTBase> map = Maps.newHashMap();
+ public final Map<String, NBTBase> map = Maps.newHashMap(); // Paper
public NBTTagCompound() {}
@@ -94,11 +94,13 @@ public class NBTTagCompound extends NBTBase {
this.map.put(s, new NBTTagLong(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());
}
+ 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/NBTTagList.java b/src/main/java/net/minecraft/server/NBTTagList.java
index e0cb6aa6e..bc6383669 100644
--- a/src/main/java/net/minecraft/server/NBTTagList.java
+++ b/src/main/java/net/minecraft/server/NBTTagList.java
@@ -13,7 +13,7 @@ import org.apache.logging.log4j.Logger;
public class NBTTagList extends NBTBase {
private static final Logger b = LogManager.getLogger();
- private List<NBTBase> list = Lists.newArrayList();
+ public List<NBTBase> list = Lists.newArrayList(); // Paper
private byte type = 0;
public NBTTagList() {}
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 8cede938a..cd2d58bfb 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -65,9 +65,9 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
private final MinecraftServer minecraftServer;
public EntityPlayer player;
private int e;
- private long f;
- private boolean g;
- private long h;
+ private long f; private void setLastPing(long lastPing) { this.f = lastPing;}; private long getLastPing() { return this.f;}; // Paper - OBFHELPER
+ private boolean g; private void setPendingPing(boolean isPending) { this.g = isPending;}; private boolean isPendingPing() { return this.g;}; // 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");
@@ -2158,6 +2158,7 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
}
+ private long getCurrentMillis() { return d(); } // Paper - OBFHELPER
private long d() {
return System.nanoTime() / 1000000L;
}
--
2.15.1
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