Paper/patches/server-remapped/0290-PreSpawnerSpawnEvent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Phoenix616 <mail@moep.tv>
Date: Tue, 18 Sep 2018 23:53:23 +0100
Subject: [PATCH] PreSpawnerSpawnEvent

This adds a separate event before an entity is spawned by a spawner
which contains the location of the spawner too similarly to how the
SpawnerSpawnEvent gets called instead of the CreatureSpawnEvent for
spawners.

diff --git a/src/main/java/net/minecraft/world/level/BaseSpawner.java b/src/main/java/net/minecraft/world/level/BaseSpawner.java
index ac572eba10a7239d71dfae060f623b076d4252ce..1ce675d0d24ceb5724f5ac2d8f671e38f2735f74 100644
--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
+++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
@@ -132,11 +132,11 @@ public abstract class BaseSpawner {
 
                             org.bukkit.entity.EntityType type = org.bukkit.entity.EntityType.fromName(key);
                             if (type != null) {
-                                com.destroystokyo.paper.event.entity.PreCreatureSpawnEvent event;
-                                event = new com.destroystokyo.paper.event.entity.PreCreatureSpawnEvent(
+                        com.destroystokyo.paper.event.entity.PreSpawnerSpawnEvent event;
+                        event = new com.destroystokyo.paper.event.entity.PreSpawnerSpawnEvent(
                                     MCUtil.toLocation(world, d3, d4, d5),
                                     type,
-                                    org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER
+                            MCUtil.toLocation(world, blockposition)
                                 );
                                 if (!event.callEvent()) {
                                     flag = true;