1 files changed, 121 insertions, 0 deletions
diff --git a/patches/server/0314-Entity-getEntitySpawnReason.patch b/patches/server/0314-Entity-getEntitySpawnReason.patch
new file mode 100644
index 0000000000..6d3489374b
--- /dev/null
+++ b/patches/server/0314-Entity-getEntitySpawnReason.patch
@@ -0,0 +1,121 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <[email protected]>
+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/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 5abcae55b2dc37eea514d194803bc9a851f18c25..2950ad995f322570cd647d3217f340327cc3e7c8 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -1185,6 +1185,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
+             return true;
+         }
+         // Paper end
++        if (entity.spawnReason == null) entity.spawnReason = spawnReason; // Paper
+         if (entity.isRemoved()) {
+             // Paper start
+             if (DEBUG_ENTITIES) {
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index 25da9e3252154415303db662286e89e3aa7cfcd8..eea7a625fb00af13944b21e1af4bf1804c5ce6d9 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
++++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -342,7 +342,7 @@ public abstract class PlayerList {
+             // CraftBukkit start
+             ServerLevel finalWorldServer = worldserver1;
+             Entity entity = EntityType.loadEntityRecursive(nbttagcompound1.getCompound("Entity"), finalWorldServer, (entity1) -> {
+-                return !finalWorldServer.addWithUUID(entity1) ? null : entity1;
++                return !finalWorldServer.addWithUUID(entity1, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.MOUNT) ? null : entity1; // Paper
+                 // CraftBukkit end
+             });
+ 
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index f015b1990a509071b6154a9eb7405fa2cbacb111..aa5fdc74a3b06b8d8b82b86fb4f1469ddd4c629e 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -67,6 +67,8 @@ import net.minecraft.world.InteractionHand;
+ import net.minecraft.world.InteractionResult;
+ import net.minecraft.world.Nameable;
+ import net.minecraft.world.damagesource.DamageSource;
++import net.minecraft.world.entity.animal.AbstractFish;
++import net.minecraft.world.entity.animal.Animal;
+ import net.minecraft.world.entity.item.ItemEntity;
+ import net.minecraft.world.entity.player.Player;
+ import net.minecraft.world.entity.vehicle.Boat;
+@@ -165,6 +167,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i
+             }
+         }
+     };
++    public org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason spawnReason;
+     // Paper end
+ 
+     public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
+@@ -1859,6 +1862,9 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i
+                 }
+                 nbt.put("Paper.Origin", this.newDoubleList(origin.getX(), origin.getY(), origin.getZ()));
+             }
++            if (spawnReason != null) {
++                nbt.putString("Paper.SpawnReason", spawnReason.name());
++            }
+             // Save entity's from mob spawner status
+             if (spawnedViaMobSpawner) {
+                 nbt.putBoolean("Paper.FromMobSpawner", true);
+@@ -2004,6 +2010,26 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i
+             }
+ 
+             spawnedViaMobSpawner = nbt.getBoolean("Paper.FromMobSpawner"); // Restore entity's from mob spawner status
++            if (nbt.contains("Paper.SpawnReason")) {
++                String spawnReasonName = nbt.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 Mob && (this instanceof Animal || this instanceof AbstractFish) && !((Mob) this).removeWhenFarAway(0.0)) {
++                    if (!nbt.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/world/level/BaseSpawner.java b/src/main/java/net/minecraft/world/level/BaseSpawner.java
+index f08c5ae9d41ec9efb627665f5de4dd6165fd0092..30930a24c197c45f2ed86eaf7a150252005e7a37 100644
+--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
++++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
+@@ -179,6 +179,7 @@ public abstract class BaseSpawner {
+                             // Spigot End
+                         }
+                         entity.spawnedViaMobSpawner = true; // Paper
++                        entity.spawnReason = org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER; // Paper
+                         flag = true; // Paper
+                         // Spigot Start
+                         if (org.bukkit.craftbukkit.event.CraftEventFactory.callSpawnerSpawnEvent(entity, pos).isCancelled()) {
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+index 989824be9c26d138ceed62ac533fcf2bbf37755f..fd811e2ba455d7e4eb618d48ca2c4983797a265c 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+@@ -1230,5 +1230,10 @@ 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
+ }