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path: root/patches/unapplied/server/0140-Entity-fromMobSpawner.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
Date: Sun, 18 Jun 2017 18:17:05 -0500
Subject: [PATCH] Entity#fromMobSpawner()


diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 9b0ae983caa12ea50284d9945a7f312429852795..c22b1ef0751d244310dee880565eef83bdb61114 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -406,6 +406,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
     public void inactiveTick() { }
     // Spigot end
     protected int numCollisions = 0; // Paper - Cap entity collisions
+    public boolean spawnedViaMobSpawner; // Paper - Yes this name is similar to above, upstream took the better one
     // Paper start - Entity origin API
     @javax.annotation.Nullable
     private org.bukkit.util.Vector origin;
@@ -2376,6 +2377,10 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
                 }
                 nbttagcompound.put("Paper.Origin", this.newDoubleList(origin.getX(), origin.getY(), origin.getZ()));
             }
+            // Save entity's from mob spawner status
+            if (spawnedViaMobSpawner) {
+                nbttagcompound.putBoolean("Paper.FromMobSpawner", true);
+            }
             // Paper end
             return nbttagcompound;
         } catch (Throwable throwable) {
@@ -2517,6 +2522,8 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
                 this.originWorld = originWorld;
                 origin = new org.bukkit.util.Vector(originTag.getDouble(0), originTag.getDouble(1), originTag.getDouble(2));
             }
+
+            spawnedViaMobSpawner = nbt.getBoolean("Paper.FromMobSpawner"); // Restore entity's from mob spawner status
             // 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 7b918001d36a8f14ed0d3ee4d6783588f48eb78f..e424c23c22809a307175b5dcc7f7b0084464493f 100644
--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
+++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
@@ -176,6 +176,7 @@ public abstract class BaseSpawner {
                             // Spigot End
                         }
 
+                        entity.spawnedViaMobSpawner = true; // Paper
                         // CraftBukkit start
                         if (org.bukkit.craftbukkit.event.CraftEventFactory.callSpawnerSpawnEvent(entity, pos).isCancelled()) {
                             continue;
diff --git a/src/main/java/net/minecraft/world/level/block/entity/trialspawner/TrialSpawner.java b/src/main/java/net/minecraft/world/level/block/entity/trialspawner/TrialSpawner.java
index 28c8b8cd2ad0a368f7856a407d91742978490728..f0163b7fa8b27823db9df5b8d2b6adcb63023164 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/trialspawner/TrialSpawner.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/trialspawner/TrialSpawner.java
@@ -230,6 +230,7 @@ public final class TrialSpawner {
                                 optional1.ifPresent(entityinsentient::equip);
                             }
 
+                            entity.spawnedViaMobSpawner = true; // Paper
                             // CraftBukkit start
                             if (org.bukkit.craftbukkit.event.CraftEventFactory.callTrialSpawnerSpawnEvent(entity, pos).isCancelled()) {
                                 return Optional.empty();
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index 0bec53dc1be4aa997be9f03bc3cde30d22cc8160..0480fbeffd19011d3cd63021225f376c464b480c 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -1011,4 +1011,11 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
         return originVector.toLocation(world);
     }
     // Paper end - entity origin API
+
+    // Paper start - Entity#fromMobSpawner
+    @Override
+    public boolean fromMobSpawner() {
+        return this.getHandle().spawnedViaMobSpawner;
+    }
+    // Paper end - Entity#fromMobSpawner
 }