1 files changed, 47 insertions, 5 deletions
diff --git a/src/main/java/gregtech/nei/NEI_GT_Config.java b/src/main/java/gregtech/nei/NEI_GT_Config.java
index 5aef5b2901..0b4476eeef 100644
--- a/src/main/java/gregtech/nei/NEI_GT_Config.java
+++ b/src/main/java/gregtech/nei/NEI_GT_Config.java
@@ -1,24 +1,66 @@
 package gregtech.nei;
 
 import codechicken.nei.api.IConfigureNEI;
+import codechicken.nei.recipe.GuiCraftingRecipe;
+import codechicken.nei.recipe.GuiUsageRecipe;
+import codechicken.nei.recipe.TemplateRecipeHandler;
+import com.google.common.collect.ImmutableMap;
 import cpw.mods.fml.common.FMLCommonHandler;
+import cpw.mods.fml.common.event.FMLInterModComms;
+import gregtech.api.enums.GT_Values;
 import gregtech.api.enums.ItemList;
 import gregtech.api.util.GT_Recipe;
 
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+
 public class NEI_GT_Config implements IConfigureNEI {
+    /**
+     * This map determines the order in which NEI handlers will be registered and displayed in tabs.
+     *
+     * <p>Handlers will be displayed in ascending order of integer value. Any recipe map that is not
+     * present in this map will be assigned a value of 0. Negative values are fine.
+     */
+    private static final ImmutableMap<GT_Recipe.GT_Recipe_Map, Integer> RECIPE_MAP_ORDERING =
+            ImmutableMap.<GT_Recipe.GT_Recipe_Map, Integer>builder()
+                    .put(GT_Recipe.GT_Recipe_Map.sAssemblylineVisualRecipes, 1)
+                    .put(GT_Recipe.GT_Recipe_Map.sScannerFakeRecipes, 2)
+                    .build();
+
+    private static final Comparator<RecipeMapHandler> RECIPE_MAP_HANDLER_COMPARATOR =
+            Comparator.comparingInt(
+                    handler -> RECIPE_MAP_ORDERING.getOrDefault(handler.getRecipeMap(), 0));
+
     public static boolean sIsAdded = true;
     public static GT_NEI_AssLineHandler ALH;
 
+    private static void addHandler(TemplateRecipeHandler handler) {
+        FMLInterModComms.sendRuntimeMessage(
+                GT_Values.GT, "NEIPlugins", "register-crafting-handler",
+                "gregtech@" + handler.getRecipeName() + "@" + handler.getOverlayIdentifier());
+        GuiCraftingRecipe.craftinghandlers.add(handler);
+        GuiUsageRecipe.usagehandlers.add(handler);
+    }
+
     @Override
     public void loadConfig() {
         sIsAdded = false;
-        for (GT_Recipe.GT_Recipe_Map tMap : GT_Recipe.GT_Recipe_Map.sMappings) {
-            if (tMap.mNEIAllowed) {
-                new GT_NEI_DefaultHandler(tMap);
-            }
-        }
         if (FMLCommonHandler.instance().getEffectiveSide().isClient()) {
+            List<RecipeMapHandler> handlers = new ArrayList<>();
+
             ALH = new GT_NEI_AssLineHandler(GT_Recipe.GT_Recipe_Map.sAssemblylineVisualRecipes);
+            handlers.add(ALH);
+
+            for (GT_Recipe.GT_Recipe_Map tMap : GT_Recipe.GT_Recipe_Map.sMappings) {
+                if (tMap.mNEIAllowed) {
+                    handlers.add(new GT_NEI_DefaultHandler(tMap));
+                }
+            }
+
+            handlers.sort(RECIPE_MAP_HANDLER_COMPARATOR);
+            handlers.forEach(NEI_GT_Config::addHandler);
+
             codechicken.nei.api.API.addItemListEntry(ItemList.VOLUMETRIC_FLASK.get(1));
         }
         sIsAdded = true;