Proper Reloading of OreDict Ingredient Cache on Servers (#2771)

Author: IntegerLimit

src/main/java/gregtech/common/CommonProxy.java

@@ -64,6 +64,7 @@
 import net.minecraftforge.event.RegistryEvent;
 import net.minecraftforge.event.furnace.FurnaceFuelBurnTimeEvent;
 import net.minecraftforge.fml.client.event.ConfigChangedEvent;
+import net.minecraftforge.fml.common.FMLCommonHandler;
 import net.minecraftforge.fml.common.Loader;
 import net.minecraftforge.fml.common.LoaderState;
 import net.minecraftforge.fml.common.Mod;
@@ -445,9 +446,13 @@ public void onLoadComplete() {
         // If JEI and GS is not loaded, refresh ore dict ingredients
         // Not needed if JEI is loaded, as done in the JEI plugin (and this runs after that)
         // Not needed if GS is loaded, as done after script loads (and this runs after that)
-        if (!GregTechAPI.moduleManager.isModuleEnabled(GregTechModules.MODULE_JEI) &&
-                !GroovyScriptModule.isCurrentlyRunning())
-            GTRecipeOreInput.refreshStackCache();
+        if (!GroovyScriptModule.isCurrentlyRunning()) {
+            // EXCEPTION: IF GrS is not loaded, and JEI is loaded, and we are in a dedicated server env, refresh
+            // This is due to JEI Plugin Register not taking place on server, and GrS not acting as the backup.
+            if (!GregTechAPI.moduleManager.isModuleEnabled(GregTechModules.MODULE_JEI) ||
+                    FMLCommonHandler.instance().getSide().isServer())
+                GTRecipeOreInput.refreshStackCache();
+        }
     }
 
     public boolean isFancyGraphics() {

src/main/java/gregtech/integration/groovy/GroovyScriptModule.java

@@ -33,6 +33,7 @@
 import net.minecraft.item.crafting.IRecipe;
 import net.minecraft.util.ResourceLocation;
 import net.minecraftforge.event.RegistryEvent;
+import net.minecraftforge.fml.common.FMLCommonHandler;
 import net.minecraftforge.fml.common.Optional;
 import net.minecraftforge.fml.common.eventhandler.EventPriority;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
@@ -93,8 +94,9 @@ public static void onRecipeEvent(RegistryEvent.Register<IRecipe> event) {
     @SubscribeEvent
     @Optional.Method(modid = Mods.Names.GROOVY_SCRIPT)
     public static void afterScriptLoad(ScriptRunEvent.Post event) {
-        // Not Needed if JEI Module is enabled
-        if (!GregTechAPI.moduleManager.isModuleEnabled(GregTechModules.MODULE_JEI))
+        // Not Needed if JEI Module is enabled, unless we are on server (JEI Plugin Register doesn't take place)
+        if (!GregTechAPI.moduleManager.isModuleEnabled(GregTechModules.MODULE_JEI) ||
+                FMLCommonHandler.instance().getSide().isServer())
             GTRecipeOreInput.refreshStackCache();
     }