use MiningLevelManager

src/main/java/io/github/fabricators_of_create/porting_lib/PortingLib.java

@@ -2,17 +2,10 @@
 
 import io.github.fabricators_of_create.porting_lib.loot.LootModifierManager;
 import io.github.fabricators_of_create.porting_lib.loot.LootTableIdCondition;
-import io.github.fabricators_of_create.porting_lib.transfer.item.ItemStackHandler;
 import io.github.fabricators_of_create.porting_lib.util.CanToolPerformAction;
 import io.github.fabricators_of_create.porting_lib.util.UsernameCache;
-import net.fabricmc.fabric.api.transfer.v1.item.ItemVariant;
-import net.fabricmc.fabric.api.transfer.v1.transaction.Transaction;
 import net.minecraft.core.Registry;
 
-import net.minecraft.world.item.ItemStack;
-
-import net.minecraft.world.item.Items;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -29,8 +22,6 @@
 import net.fabricmc.api.ModInitializer;
 import net.minecraft.resources.ResourceLocation;
 
-import java.util.Arrays;
-
 public class PortingLib implements ModInitializer {
 	public static final String ID = "porting_lib";
 	public static final Logger LOGGER = LoggerFactory.getLogger(ID);

src/main/java/io/github/fabricators_of_create/porting_lib/mixin/common/hack/Tags$BlocksMixin.java

@@ -0,0 +1,29 @@
+package io.github.fabricators_of_create.porting_lib.mixin.common.hack;
+
+import me.alphamode.forgetags.Tags;
+
+import net.fabricmc.fabric.api.mininglevel.v1.MiningLevelManager;
+import net.minecraft.tags.TagKey;
+
+import net.minecraft.world.item.Tiers;
+import net.minecraft.world.level.block.Block;
+
+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.CallbackInfoReturnable;
+
+/**
+ * ForgeTags is not being updated as it has been merged into newer Porting Lib versions.
+ * Gross fix for #70
+ */
+@Mixin(value = Tags.Blocks.class, remap = false)
+public class Tags$BlocksMixin {
+	@Inject(method = "tag", at = @At("HEAD"), cancellable = true)
+	private static void useFapiTags(String name, CallbackInfoReturnable<TagKey<Block>> cir) {
+		if ("needs_netherite_tool".equals(name)) {
+			TagKey<Block> fapiTag = MiningLevelManager.getBlockTag(Tiers.NETHERITE.getLevel());
+			cir.setReturnValue(fapiTag);
+		}
+	}
+}

src/main/java/io/github/fabricators_of_create/porting_lib/util/TierSortingRegistry.java

@@ -14,6 +14,7 @@
 
 import io.github.fabricators_of_create.porting_lib.PortingLib;
 
+import net.fabricmc.fabric.api.mininglevel.v1.MiningLevelManager;
 import net.fabricmc.fabric.api.resource.IdentifiableResourceReloadListener;
 import net.fabricmc.fabric.api.resource.ResourceManagerHelper;
 
@@ -190,15 +191,10 @@ public static List<Tier> getTiersLowerThan(Tier tier) {
 	}
 
 	/**
-	 * Fallback for when a tier isn't in the registry, copy of the logic in {@link DiggerItem#isCorrectToolForDrops}
+	 * Fallback for when a tier isn't in the registry
 	 */
 	private static boolean isCorrectTierVanilla(Tier tier, BlockState state) {
-		int i = tier.getLevel();
-		if (i < 3 && state.is(BlockTags.NEEDS_DIAMOND_TOOL)) {
-			return false;
-		} else if (i < 2 && state.is(BlockTags.NEEDS_IRON_TOOL)) {
-			return false;
-		} else return i >= 1 || !state.is(BlockTags.NEEDS_STONE_TOOL);
+		return tier.getLevel() >= MiningLevelManager.getRequiredMiningLevel(state);
 	}
 
 	private static void processTier(Tier tier, ResourceLocation name, List<Object> afters, List<Object> befores) {

src/main/resources/porting_lib.mixins.common.json

@@ -161,7 +161,8 @@
     "accessor.SlotAccessor",
     "accessor.StairBlockAccessor",
     "accessor.StructureTemplateAccessor",
-    "accessor.TagValueAccessor"
+    "accessor.TagValueAccessor",
+    "hack.Tags$BlocksMixin"
   ],
   "injectors": {
     "defaultRequire": 1,