Add Entity#fromMobSpawner API

Merges and closes GH-752

Spigot-API-Patches/0060-Entity-fromMobSpawner.patch

@@ -0,0 +1,26 @@
+From e694e778d2f5ac074f8e76ae11fb181d762d8c32 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/org/bukkit/entity/Entity.java b/src/main/java/org/bukkit/entity/Entity.java
+index c86c1c5f..b3d59a39 100644
+--- a/src/main/java/org/bukkit/entity/Entity.java
++++ b/src/main/java/org/bukkit/entity/Entity.java
+@@ -505,5 +505,12 @@ public interface Entity extends Metadatable, CommandSender, Nameable {
+      * @return Location where entity originates or null if not yet added
+      */
+     Location getOrigin();
++
++    /**
++     * Returns whether this entity was spawned from a mob spawner.
++     *
++     * @return True if entity spawned from a mob spawner
++     */
++    boolean fromMobSpawner();
+     // Paper end
+ }
+-- 
+2.13.2.windows.1
+

Spigot-Server-Patches/0221-Entity-fromMobSpawner.patch

@@ -0,0 +1,68 @@
+From 1b9e03fd489394f2f426ae65854e6c4ae2cd1932 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/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
+index d34ec4ff..65d7e1a1 100644
+--- a/src/main/java/net/minecraft/server/Entity.java
++++ b/src/main/java/net/minecraft/server/Entity.java
+@@ -169,6 +169,7 @@ public abstract class Entity implements ICommandListener {
+     public final boolean defaultActivationState;
+     public long activatedTick = Integer.MIN_VALUE;
+     public boolean fromMobSpawner;
++    public boolean spawnedViaMobSpawner; // Paper - Yes this name is similar to above, upstream took the better one
+     protected int numCollisions = 0; // Paper
+     public void inactiveTick() { }
+     // Spigot end
+@@ -1584,6 +1585,10 @@ public abstract class Entity implements ICommandListener {
+             if (origin != null) {
+                 nbttagcompound.set("Paper.Origin", this.createList(origin.getX(), origin.getY(), origin.getZ()));
+             }
++            // Save entity's from mob spawner status
++            if (spawnedViaMobSpawner) {
++                nbttagcompound.setBoolean("Paper.FromMobSpawner", true);
++            }
+             // Paper end
+             return nbttagcompound;
+         } catch (Throwable throwable) {
+@@ -1734,6 +1739,8 @@ public abstract class Entity implements ICommandListener {
+             if (!originTag.isEmpty()) {
+                 origin = new Location(world.getWorld(), originTag.getDoubleAt(0), originTag.getDoubleAt(1), originTag.getDoubleAt(2));
+             }
++
++            spawnedViaMobSpawner = nbttagcompound.getBoolean("Paper.FromMobSpawner"); // Restore entity's from mob spawner status
+             // 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 dd740276..a5b5ef0f 100644
+--- a/src/main/java/net/minecraft/server/MobSpawnerAbstract.java
++++ b/src/main/java/net/minecraft/server/MobSpawnerAbstract.java
+@@ -106,6 +106,7 @@ public abstract class MobSpawnerAbstract {
+                         if (this.spawnData.b().d() == 1 && this.spawnData.b().hasKeyOfType("id", 8) && entity instanceof EntityInsentient) {
+                             ((EntityInsentient) entity).prepare(world.D(new BlockPosition(entity)), (GroupDataEntity) null);
+                         }
++                        entity.spawnedViaMobSpawner = true; // Paper
+                         // Spigot Start
+                         if ( entity.world.spigotConfig.nerfSpawnerMobs )
+                         {
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+index 05f3df4e..d23a72d6 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+@@ -788,5 +788,10 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
+         Location origin = getHandle().origin;
+         return origin == null ? null : origin.clone();
+     }
++
++    @Override
++    public boolean fromMobSpawner() {
++        return getHandle().spawnedViaMobSpawner;
++    }
+     // Paper end
+ }
+-- 
+2.13.2.windows.1
+