PaperMC/Spigot-Server-Patches/0423-Entity-getEntitySpawnReason.patch
Aikar b66154b26e
Fix a concurrency issue with legacy structure data loading
This code could get hit by many threads at once, causing multiple
chunk loads to convert legacy data, leading to all sorts of fun.

Additionally, go ahead and preload it async on world load.
2019-03-29 03:38:22 -04:00

128 lines
6.7 KiB
Diff

From 1dbf386fc08f6efe1e5dcdea5c9df5bf427cd8b5 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/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
index 7734712af..dce52ac0f 100644
--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
@@ -1134,7 +1134,7 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
while (iterator.hasNext()) {
Entity entity1 = (Entity) iterator.next();
- a(entity1, generatoraccess);
+ a(entity1, generatoraccess, reason); // Paper
}
}
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 3c2e79b14..0c58a4766 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -63,6 +63,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
};
List<Entity> entitySlice = null;
+ public org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason spawnReason;
// Paper end
static boolean isLevelAtLeast(NBTTagCompound tag, int level) {
return tag.hasKey("Bukkit.updateLevel") && tag.getInt("Bukkit.updateLevel") >= level;
@@ -1671,6 +1672,9 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
if (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);
@@ -1824,6 +1828,26 @@ 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 IAnimal && !((EntityInsentient) this).isTypeNotPersistent()) {
+ 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/MobSpawnerAbstract.java b/src/main/java/net/minecraft/server/MobSpawnerAbstract.java
index b2d2de7f8..af38e5396 100644
--- a/src/main/java/net/minecraft/server/MobSpawnerAbstract.java
+++ b/src/main/java/net/minecraft/server/MobSpawnerAbstract.java
@@ -117,7 +117,7 @@ public abstract class MobSpawnerAbstract {
}
}
// Paper end
- Entity entity = ChunkRegionLoader.a(nbttagcompound, world, d3, d4, d5, false);
+ Entity entity = ChunkRegionLoader.spawnEntity(nbttagcompound, world, d3, d4, d5, false, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER); // Paper
if (entity == null) {
this.i();
diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
index b1630137e..df416e3b5 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -196,7 +196,7 @@ public abstract class PlayerList {
if (nbttagcompound != null && nbttagcompound.hasKeyOfType("RootVehicle", 10)) {
NBTTagCompound nbttagcompound1 = nbttagcompound.getCompound("RootVehicle");
- Entity entity = ChunkRegionLoader.a(nbttagcompound1.getCompound("Entity"), worldserver, true);
+ Entity entity = ChunkRegionLoader.spawnEntity(nbttagcompound1.getCompound("Entity"), worldserver, true, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.MOUNT); // Paper
if (entity != null) {
UUID uuid = nbttagcompound1.a("Attach");
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 5b4bce464..2d436feab 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -1084,6 +1084,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
public boolean addEntity(Entity entity, SpawnReason spawnReason) { // Changed signature, added SpawnReason
// Paper start
+ if (entity.spawnReason == null) entity.spawnReason = spawnReason;
if (regionLimited != null) {
return regionLimited.addEntity(entity, spawnReason);
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index d4a8fb16b..51f70c5ee 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -845,5 +845,9 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
public boolean fromMobSpawner() {
return getHandle().spawnedViaMobSpawner;
}
+
+ public org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason getEntitySpawnReason() {
+ return getHandle().spawnReason;
+ }
// Paper end
}
--
2.21.0