PaperMC/Spigot-Server-Patches/Entity-getEntitySpawnReason.patch
Aikar fd5c98a9ef Optimize Network Manager to not need synchronization
Removes synchronization from sending packets
Makes normal packet sends no longer need to be wrapped and queued like it use to work.
Adds more packet queue immunities on top of keep alive to let the following scenarios go out
without delay:
  - Keep Alive
  - Chat
  - Kick
  - All of the packets during the Player Joined World event

Hoping that latter one helps join timeout issues more too for slow connections.

Removes processing packet queue off of main thread
  - for the few cases where it is allowed, order is not necessary nor
    should it even be happening concurrently in first place (handshaking/login/status)

Ensures packets sent asynchronously are dispatched on main thread

This helps ensure safety for ProtocolLib as packet listeners
are commonly accessing world state. This will allow you to schedule
a packet to be sent async, but itll be dispatched sync for packet
listeners to process.

This should solve some deadlock risks

This may provide a decent performance improvement because thread synchronization incurs a cache reset
so by avoiding ever entering a synchronized block, we get to avoid that, and packet sending is a really
hot activity.
2020-05-06 05:22:03 -04:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 24 Mar 2019 00:24:52 -0400
Subject: [PATCH] Entity#getEntitySpawnReason
Allows you to return the SpawnReason for why an Entity Spawned
Pre existing entities will return NATURAL if it was a non
persistenting Living Entity, SPAWNER for spawners,
or DEFAULT since data was not stored.
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 3a1d97c290c..030c9992ebe 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -0,0 +0,0 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
};
List<Entity> entitySlice = null;
+ public org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason spawnReason;
// Paper end
public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
@@ -0,0 +0,0 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
if (this.origin != null) {
nbttagcompound.set("Paper.Origin", this.createList(origin.getX(), origin.getY(), origin.getZ()));
}
+ if (spawnReason != null) {
+ nbttagcompound.setString("Paper.SpawnReason", spawnReason.name());
+ }
// Save entity's from mob spawner status
if (spawnedViaMobSpawner) {
nbttagcompound.setBoolean("Paper.FromMobSpawner", true);
@@ -0,0 +0,0 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
spawnedViaMobSpawner = nbttagcompound.getBoolean("Paper.FromMobSpawner"); // Restore entity's from mob spawner status
+ if (nbttagcompound.hasKey("Paper.SpawnReason")) {
+ String spawnReasonName = nbttagcompound.getString("Paper.SpawnReason");
+ try {
+ spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.valueOf(spawnReasonName);
+ } catch (Exception ignored) {
+ LogManager.getLogger().error("Unknown SpawnReason " + spawnReasonName + " for " + this);
+ }
+ }
+ if (spawnReason == null) {
+ if (spawnedViaMobSpawner) {
+ spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER;
+ } else if (this instanceof EntityInsentient && (this instanceof EntityAnimal || this instanceof EntityFish) && !((EntityInsentient) this).isTypeNotPersistent(0.0)) {
+ if (!nbttagcompound.getBoolean("PersistenceRequired")) {
+ spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL;
+ }
+ }
+ }
+ if (spawnReason == null) {
+ spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.DEFAULT;
+ }
// Paper end
} catch (Throwable throwable) {
diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
index faea0b31ddc..faecf793416 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -0,0 +0,0 @@ public abstract class PlayerList {
// CraftBukkit start
WorldServer finalWorldServer = worldserver;
Entity entity = EntityTypes.a(nbttagcompound1.getCompound("Entity"), finalWorldServer, (entity1) -> {
- return !finalWorldServer.addEntitySerialized(entity1) ? null : entity1;
+ return !finalWorldServer.addEntitySerialized(entity1, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.MOUNT) ? null : entity1; // Paper
// CraftBukkit end
});
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index a75034079b0..955003d5f83 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -0,0 +0,0 @@ public class WorldServer extends World {
// CraftBukkit start
private boolean addEntity0(Entity entity, CreatureSpawnEvent.SpawnReason spawnReason) {
org.spigotmc.AsyncCatcher.catchOp("entity add"); // Spigot
+ if (entity.spawnReason == null) entity.spawnReason = spawnReason; // Paper
// Paper start
if (entity.valid) {
MinecraftServer.LOGGER.error("Attempted Double World add on " + entity, new Throwable());
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index bc2df82a5f4..ff60568ce43 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -0,0 +0,0 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
public boolean fromMobSpawner() {
return getHandle().spawnedViaMobSpawner;
}
+
+ @Override
+ public org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason getEntitySpawnReason() {
+ return getHandle().spawnReason;
+ }
// Paper end
}
--