From 2f5f9968e465b2170ec0c8e0f74ce6faea26d547 Mon Sep 17 00:00:00 2001
From: LexManos <LexManos@gmail.com>
Date: Sat, 28 May 2016 22:31:48 -0700
Subject: [PATCH] Reinitalize statistics information on Mapping changes. Fixes
 mismatched stats to item/block ids. And auto registers stats for modded
 items. Closes #2454

---
 .../net/minecraft/stats/StatList.java.patch   | 37 +++++++++++++++++++
 .../common/ForgeModContainer.java             |  7 ++++
 2 files changed, 44 insertions(+)

diff --git a/patches/minecraft/net/minecraft/stats/StatList.java.patch b/patches/minecraft/net/minecraft/stats/StatList.java.patch
index 1efa70d8f..53807504d 100644
--- a/patches/minecraft/net/minecraft/stats/StatList.java.patch
+++ b/patches/minecraft/net/minecraft/stats/StatList.java.patch
@@ -99,3 +99,40 @@
  
          if (p_151180_0_[i] != null && p_151180_0_[j] == null)
          {
+@@ -306,4 +313,36 @@
+     {
+         return (StatBase)field_188093_a.get(p_151177_0_);
+     }
++
++    @Deprecated //MODDER DO NOT CALL THIS ITS JUST A EVENT CALLBACK FOR FORGE
++    public static void reinit()
++    {
++        field_188093_a.clear();
++        field_188094_c.clear();
++        field_188095_d.clear();
++        field_188096_e.clear();
++
++        for (StatBase[] sb : new StatBase[][]{field_188065_ae,  field_188066_af, field_75929_E, field_75930_F, field_188067_ai, field_188068_aj})
++        {
++            for (int x = 0; x < sb.length; x++)
++            {
++                if (sb[x] != null)
++                {
++                    field_75940_b.remove(sb[x]);
++                    sb[x] = null;
++                }
++            }
++        }
++        List<StatBase> unknown = Lists.newArrayList(field_75940_b);
++        field_75940_b.clear();
++
++        for (StatBase b : unknown)
++            b.func_75971_g();
++
++        func_151181_c();
++        func_75925_c();
++        func_151179_e();
++        func_75918_d();
++        func_188054_f();
++    }
+ }
diff --git a/src/main/java/net/minecraftforge/common/ForgeModContainer.java b/src/main/java/net/minecraftforge/common/ForgeModContainer.java
index b18562cdf..6ec37cd47 100644
--- a/src/main/java/net/minecraftforge/common/ForgeModContainer.java
+++ b/src/main/java/net/minecraftforge/common/ForgeModContainer.java
@@ -20,6 +20,7 @@ import java.util.Map;
 
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.stats.StatList;
 import net.minecraft.world.storage.SaveHandler;
 import net.minecraft.world.storage.WorldInfo;
 import net.minecraftforge.classloading.FMLForgePlugin;
@@ -350,6 +351,12 @@ public class ForgeModContainer extends DummyModContainer implements WorldAccessC
         }
     }
 
+    @Subscribe
+    public void mappingChange(FMLModIdMappingEvent evt)
+    {
+        StatList.reinit();
+    }
+
     @Subscribe
     public void postInit(FMLPostInitializationEvent evt)
     {