Code cleanup and refactoring before porting

Fabric/src/main/java/com/hypherionmc/craterlib/mixin/MinecraftMixin.java

@@ -0,0 +1,38 @@
+package com.hypherionmc.craterlib.mixin;
+
+import com.hypherionmc.craterlib.core.systems.internal.CreativeTabRegistry;
+import net.fabricmc.fabric.api.itemgroup.v1.FabricItemGroup;
+import net.fabricmc.fabric.api.itemgroup.v1.ItemGroupEvents;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.main.GameConfig;
+import net.minecraft.network.chat.Component;
+import net.minecraft.world.item.CreativeModeTab;
+import org.apache.commons.lang3.tuple.Pair;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(Minecraft.class)
+public class MinecraftMixin {
+
+    @Inject(method = "<init>", at = @At("RETURN"))
+    private void injectCraterLateInit(GameConfig gameConfig, CallbackInfo ci) {
+        CreativeTabRegistry.getTabs().forEach(tab -> {
+            CreativeModeTab finalTab = FabricItemGroup.builder(tab.getResourceLocation())
+                    .title(Component.translatable("itemGroup." +
+                            tab.getResourceLocation().toString().replace(":", ".")
+                    ))
+                    .icon(tab.getIcon())
+                    .build();
+
+            tab.setTab(finalTab);
+
+            ItemGroupEvents.modifyEntriesEvent(finalTab).register(entries -> CreativeTabRegistry
+                    .getTabItems()
+                    .stream().filter(t -> t.getLeft().get() == finalTab && t.getRight() != null)
+                    .map(Pair::getRight).forEach(itm -> entries.accept(itm.get())));
+        });
+    }
+
+}