From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
Date: Fri, 19 Jan 2018 08:15:29 -0600
Subject: [PATCH] PlayerAdvancementCriterionGrantEvent


diff --git a/src/main/java/net/minecraft/server/PlayerAdvancements.java b/src/main/java/net/minecraft/server/PlayerAdvancements.java
index 8df1803754817707a5ad292f65276871dacc4508..5ab62fc74085bbbb0c81b2f4d16a35c9345cd1f1 100644
--- a/src/main/java/net/minecraft/server/PlayerAdvancements.java
+++ b/src/main/java/net/minecraft/server/PlayerAdvancements.java
@@ -297,6 +297,12 @@ public class PlayerAdvancements {
         boolean flag1 = advancementprogress.isDone();
 
         if (advancementprogress.a(criterionName)) {
+            // Paper start
+            if (!new com.destroystokyo.paper.event.player.PlayerAdvancementCriterionGrantEvent(this.player.getBukkitEntity(), advancement.bukkit, criterionName).callEvent()) {
+                advancementprogress.b(criterionName);
+                return false;
+            }
+            // Paper end
             this.unregisterListeners(advancement);
             this.progressChanged.add(advancement);
             flag = true;