0043-Add-source-to-PlayerExpChangeEvent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: AlphaBlend <whizkid3000@hotmail.com>
Date: Thu, 8 Sep 2016 08:47:08 -0700
Subject: [PATCH] Add source to PlayerExpChangeEvent


diff --git a/src/main/java/org/bukkit/event/player/PlayerExpChangeEvent.java b/src/main/java/org/bukkit/event/player/PlayerExpChangeEvent.java
index c99c9281e98e4b510dddb711b8785bcd56b3b92f..7c340f539c31a431d7d9204a8135e0bfc31863a8 100644
--- a/src/main/java/org/bukkit/event/player/PlayerExpChangeEvent.java
+++ b/src/main/java/org/bukkit/event/player/PlayerExpChangeEvent.java
@@ -1,21 +1,43 @@
 package org.bukkit.event.player;
 
+import org.bukkit.entity.Entity; // Paper
 import org.bukkit.entity.Player;
 import org.bukkit.event.HandlerList;
 import org.jetbrains.annotations.NotNull;
 
+import org.jetbrains.annotations.Nullable; // Paper
+
 /**
  * Called when a players experience changes naturally
  */
 public class PlayerExpChangeEvent extends PlayerEvent {
     private static final HandlerList handlers = new HandlerList();
+    // Paper start
+    @Nullable
+    private final Entity source;
     private int exp;
 
     public PlayerExpChangeEvent(@NotNull final Player player, final int expAmount) {
+          this(player, null, expAmount);
+    }
+
+    public PlayerExpChangeEvent(@NotNull final Player player, @Nullable final Entity sourceEntity, final int expAmount) {
          super(player);
+         source = sourceEntity;
          exp = expAmount;
     }
 
+    /**
+     * Get the source that provided the experience.
+     *
+     * @return The source of the experience
+     */
+    @Nullable
+    public Entity getSource() {
+        return source;
+    }
+    // Paper end
+
     /**
      * Get the amount of experience the player will receive
      *