From 00f1db61dce7a42a6605e117d1f6954967c39784 Mon Sep 17 00:00:00 2001
From: Mary <33456283+FourIsTheNumber@users.noreply.github.com>
Date: Sat, 21 Sep 2024 02:16:52 -0400
Subject: [PATCH] Prevent duplicate material registry (#3240)

---
 src/main/java/gregtech/api/enums/OrePrefixes.java | 15 +++++++++++++++
 .../loaders/oreprocessing/ProcessingPlate.java    |  1 -
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/main/java/gregtech/api/enums/OrePrefixes.java b/src/main/java/gregtech/api/enums/OrePrefixes.java
index 418fe716816..27cf37a2de3 100644
--- a/src/main/java/gregtech/api/enums/OrePrefixes.java
+++ b/src/main/java/gregtech/api/enums/OrePrefixes.java
@@ -15,6 +15,7 @@
 
 import com.google.common.collect.ImmutableList;
 
+import gregtech.api.GregTechAPI;
 import gregtech.api.enums.TCAspects.TC_AspectStack;
 import gregtech.api.interfaces.ICondition;
 import gregtech.api.interfaces.IOreRecipeRegistrator;
@@ -1179,6 +1180,8 @@ public enum OrePrefixes {
         } else if (name().startsWith("battery")) {
             new TC_AspectStack(TCAspects.ELECTRUM, 1).addToAspectList(mAspects);
         }
+
+        GregTechAPI.sGTCompleteLoad.add(this::onLoadComplete);
     }
 
     public static boolean isInstanceOf(String aName, OrePrefixes aPrefix) {
@@ -1297,12 +1300,20 @@ public boolean add(IOreRecipeRegistrator aRegistrator) {
         return mOreProcessing.add(aRegistrator);
     }
 
+    // Hack to prevent duplicate registry of oredicted materials
+    HashSet<Materials> used = new HashSet<>();
+
     public void processOre(Materials aMaterial, String aOreDictName, String aModName, ItemStack aStack) {
 
         if (aMaterial == null) {
             return;
         }
 
+        if (aMaterial != Materials._NULL && !used.add(aMaterial)) {
+            GTLog.out.println("Duplicate material registry attempted by " + aModName + " for " + aOreDictName);
+            return;
+        }
+
         if (aMaterial.contains(SubTag.NO_RECIPES)) {
             return;
         }
@@ -1325,6 +1336,10 @@ public void processOre(Materials aMaterial, String aOreDictName, String aModName
         }
     }
 
+    public void onLoadComplete() {
+        used = null;
+    }
+
     public Object get(Object aMaterial) {
         if (aMaterial instanceof Materials) return new ItemData(this, (Materials) aMaterial);
         return name() + aMaterial;
diff --git a/src/main/java/gregtech/loaders/oreprocessing/ProcessingPlate.java b/src/main/java/gregtech/loaders/oreprocessing/ProcessingPlate.java
index 05e6aaeeb35..beedad1d7ab 100644
--- a/src/main/java/gregtech/loaders/oreprocessing/ProcessingPlate.java
+++ b/src/main/java/gregtech/loaders/oreprocessing/ProcessingPlate.java
@@ -19,7 +19,6 @@
 import static gregtech.api.util.GTRecipeBuilder.TICKS;
 import static gregtech.api.util.GTRecipeBuilder.WILDCARD;
 import static gregtech.api.util.GTRecipeConstants.ADDITIVE_AMOUNT;
-import static gregtech.api.util.GTRecipeConstants.COMPRESSION_TIER;
 import static gregtech.api.util.GTRecipeConstants.FUEL_TYPE;
 import static gregtech.api.util.GTRecipeConstants.FUEL_VALUE;
 import static gregtech.api.util.GTUtility.calculateRecipeEU;