refactor: deduplicate ore type mapping, zone report, drop math, tool tiers

- Extract OreTypes (block -> ore type), previously copy-pasted in
  OreBreakEventHandler and CustomOreLootModifier
- Extract OreZoneCatalog.buildZoneReport, previously ~85 lines
  duplicated between OresCommand and OreBiomeFinderItem (also removes
  the pointless LinkedHashSet allocation used only for its size)
- CustomOreLootModifier now delegates drop math to the unit-tested
  OreDropMath instead of re-implementing fortune inline; per-ore drop
  parameters live in a DropSpec lookup table instead of a 90-line switch
- OreDropMath now draws through a minimal IntRandom functional
  interface: tests keep their seeded java.util.Random (::nextInt,
  pinned values unchanged) while the GLM passes the LootContext's
  world-seeded RandomSource
- Extract ShardDiamondToolTier enum, replacing 4 anonymous Tier clones
  (pickaxe/axe/shovel/paxel)
- Add OreZoneCatalogTest (4 tests)

src/main/java/net/mcreator/customoregen/OreTypes.java

@@ -0,0 +1,44 @@
+package net.mcreator.customoregen;
+
+import net.minecraft.world.level.block.Block;
+
+import net.mcreator.customoregen.init.CustomOreGenModBlocks;
+
+/**
+ * Central mapping between the mod's ore blocks and their logical ore type.
+ *
+ * <p>The ore type drives both item drops ({@code CustomOreLootModifier}) and experience
+ * ({@code ConfigurableOreDropsProcedure} via {@code OreDropMath}). Single source of truth:
+ * previously this mapping was copy-pasted in two classes.</p>
+ */
+public final class OreTypes {
+
+	public static final String SHARD_DIAMOND = "shard_diamond";
+	public static final String CONCENTRATED_DIAMOND = "concentrated_diamond";
+	public static final String CONCENTRATED_COAL = "concentrated_coal";
+	public static final String PURE_GOLDEN = "pure_golden";
+	public static final String IMPURE_IRON = "impure_iron";
+	public static final String LAPIS = "lapis";
+	public static final String REDSTONE = "redstone";
+	public static final String EMERALD = "emerald";
+	public static final String COPPER = "copper";
+
+	private OreTypes() {}
+
+	/**
+	 * Returns the logical ore type for a block, or {@code null} if the block is not one of
+	 * the mod's custom ores.
+	 */
+	public static String of(Block block) {
+		if (block == CustomOreGenModBlocks.SHARDDIAMONDBLOCKORE.get() || block == CustomOreGenModBlocks.DEEPSLATESHARDDIAMONDORE.get()) return SHARD_DIAMOND;
+		if (block == CustomOreGenModBlocks.CONCENTRATEDCOALORE.get()) return CONCENTRATED_COAL;
+		if (block == CustomOreGenModBlocks.PUREGOLDENORE.get() || block == CustomOreGenModBlocks.DEEPSLATEPUREGOLDENORE.get()) return PURE_GOLDEN;
+		if (block == CustomOreGenModBlocks.IRONORE.get() || block == CustomOreGenModBlocks.DEEPSLATEIRONORE.get()) return IMPURE_IRON;
+		if (block == CustomOreGenModBlocks.DEEPSLATEDIAMONDORE.get()) return CONCENTRATED_DIAMOND;
+		if (block == CustomOreGenModBlocks.LAPISORE.get() || block == CustomOreGenModBlocks.DEEPSLATELAPISORE.get()) return LAPIS;
+		if (block == CustomOreGenModBlocks.REDSTONEORE.get() || block == CustomOreGenModBlocks.DEEPSLATEREDSTONEORE.get()) return REDSTONE;
+		if (block == CustomOreGenModBlocks.HIGHEMERALDORE.get() || block == CustomOreGenModBlocks.LOWEREMERALDORE.get()) return EMERALD;
+		if (block == CustomOreGenModBlocks.COPPERHIGHORE.get() || block == CustomOreGenModBlocks.COPPERLOWERORE.get()) return COPPER;
+		return null;
+	}
+}

src/main/java/net/mcreator/customoregen/OresCommand.java

@@ -2,7 +2,6 @@ package net.mcreator.customoregen;
 
 import com.mojang.brigadier.CommandDispatcher;
 import com.mojang.brigadier.context.CommandContext;
-import net.minecraft.ChatFormatting;
 import net.minecraft.commands.CommandSourceStack;
 import net.minecraft.commands.Commands;
 import net.minecraft.network.chat.Component;
@@ -10,35 +9,11 @@ import net.neoforged.neoforge.event.RegisterCommandsEvent;
 import net.neoforged.bus.api.SubscribeEvent;
 import net.neoforged.fml.common.EventBusSubscriber;
 
-import java.util.*;
-
-import net.mcreator.customoregen.worldgen.LatitudeConfig;
+import net.mcreator.customoregen.worldgen.OreZoneCatalog;
 
 @EventBusSubscriber(modid = CustomOreGenMod.MODID, bus = EventBusSubscriber.Bus.GAME)
 public class OresCommand {
 
-	private static final List<String> COLD_ORES = Arrays.asList(
-			"Lapis (stone) [Y: 0 a 32]",
-			"Lapis (deepslate) [Y: -64 a 0]",
-			"Diamant (deepslate) [Y: -64 a 0]");
-
-	private static final List<String> HOT_ORES = Arrays.asList(
-			"Or (stone) [Y: 0 a 320]",
-			"Or (deepslate) [Y: -64 a 0]",
-			"Cuivre (haut) [Y: 15 a 320]",
-			"Cuivre (bas) [Y: -64 a 0]",
-			"Redstone (stone) [Y: -10 a 20]",
-			"Redstone (deepslate) [Y: -80 a -30]");
-
-	private static final List<String> TEMPERATE_ORES = Arrays.asList(
-			"Fer (stone) [Y: 0 a 100]",
-			"Fer (deepslate) [Y: -64 a 0]",
-			"Charbon concentre [Y: 0 a 70]");
-
-	private static final List<String> EVERYWHERE_ORES = Arrays.asList(
-			"Diamant Shard (deepslate) [Y: -64 a -40]",
-			"Bloc Diamant Shard [Y: 0 a 15]");
-
 	@SubscribeEvent
 	public static void onRegisterCommands(RegisterCommandsEvent event) {
 		event.getDispatcher().register(Commands.literal("ores")
@@ -58,48 +33,10 @@ public class OresCommand {
 		int x = player.blockPosition().getX();
 		int z = player.blockPosition().getZ();
 
-		String zone = LatitudeConfig.zoneName(z);
-		int coldZ = LatitudeConfig.getColdZoneZ();
-		int hotZ = LatitudeConfig.getHotZoneZ();
-		ChatFormatting zoneColor = zoneColor(zone);
-
-		context.getSource().sendSuccess(() -> Component.literal(
-				"=== Position: X=" + x + "  Z=" + z + " ===").withStyle(ChatFormatting.GRAY), true);
-		context.getSource().sendSuccess(() -> Component.literal(
-				"Zone determinee par la coordonnee Z : " + zone).withStyle(zoneColor), true);
-		context.getSource().sendSuccess(() -> Component.literal(
-				"Z < " + coldZ + " = froid  |  " + coldZ + " a " + hotZ + " = tempere  |  Z > " + hotZ + " = chaud")
-				.withStyle(ChatFormatting.GRAY), true);
-
-		List<String> zoneOres = new ArrayList<>();
-		switch (zone) {
-			case "COLD" -> zoneOres.addAll(COLD_ORES);
-			case "HOT" -> zoneOres.addAll(HOT_ORES);
-			case "TEMPERATE" -> zoneOres.addAll(TEMPERATE_ORES);
-		}
-
-		Set<String> allOres = new LinkedHashSet<>(zoneOres);
-		allOres.addAll(EVERYWHERE_ORES);
-
-		context.getSource().sendSuccess(() -> Component.literal(
-				"Minerais trouvables (" + allOres.size() + ") :").withStyle(ChatFormatting.WHITE), true);
-		for (String ore : zoneOres) {
-			context.getSource().sendSuccess(() -> Component.literal("  * " + ore).withStyle(zoneColor), true);
-		}
-		for (String ore : EVERYWHERE_ORES) {
-			context.getSource().sendSuccess(() -> Component.literal("  * " + ore)
-					.withStyle(ChatFormatting.LIGHT_PURPLE), true);
+		for (Component line : OreZoneCatalog.buildZoneReport(x, z)) {
+			context.getSource().sendSuccess(() -> line, true);
 		}
 
 		return 1;
 	}
-
-	private static ChatFormatting zoneColor(String zone) {
-		return switch (zone) {
-			case "COLD" -> ChatFormatting.AQUA;
-			case "HOT" -> ChatFormatting.GOLD;
-			case "TEMPERATE" -> ChatFormatting.GREEN;
-			default -> ChatFormatting.WHITE;
-		};
-	}
 }

src/main/java/net/mcreator/customoregen/event/OreBreakEventHandler.java

@@ -3,10 +3,8 @@ package net.mcreator.customoregen.event;
 import net.neoforged.neoforge.event.level.BlockDropsEvent;
 import net.neoforged.bus.api.SubscribeEvent;
 import net.neoforged.fml.common.EventBusSubscriber;
-import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.level.block.Block;
 
-import net.mcreator.customoregen.init.CustomOreGenModBlocks;
+import net.mcreator.customoregen.OreTypes;
 import net.mcreator.customoregen.procedures.ConfigurableOreDropsProcedure;
 
 @EventBusSubscriber
@@ -14,30 +12,13 @@ public class OreBreakEventHandler {
 
 	@SubscribeEvent
 	public static void onBlockDrops(BlockDropsEvent event) {
-		BlockState state = event.getState();
-		Block block = state.getBlock();
-		String oreType = getOreType(block);
+		String oreType = OreTypes.of(event.getState().getBlock());
 
-		if (oreType != null) {
-			// Item drops are now handled by CustomOreLootModifier (Global Loot Modifier)
-			// to ensure compatibility with machines and avoid duplication.
-			
-			if (event.getBreaker() != null) {
-				ConfigurableOreDropsProcedure.execute(event.getLevel(), event.getPos().getX(), event.getPos().getY(), event.getPos().getZ(), event.getBreaker(), oreType);
-			}
+		// Item drops are handled by CustomOreLootModifier (Global Loot Modifier)
+		// to ensure compatibility with machines and avoid duplication.
+		// This handler only spawns the experience orb for player-mined ores.
+		if (oreType != null && event.getBreaker() != null) {
+			ConfigurableOreDropsProcedure.execute(event.getLevel(), event.getPos().getX(), event.getPos().getY(), event.getPos().getZ(), event.getBreaker(), oreType);
 		}
 	}
-
-	private static String getOreType(Block block) {
-		if (block == CustomOreGenModBlocks.SHARDDIAMONDBLOCKORE.get() || block == CustomOreGenModBlocks.DEEPSLATESHARDDIAMONDORE.get()) return "shard_diamond";
-		if (block == CustomOreGenModBlocks.CONCENTRATEDCOALORE.get()) return "concentrated_coal";
-		if (block == CustomOreGenModBlocks.PUREGOLDENORE.get() || block == CustomOreGenModBlocks.DEEPSLATEPUREGOLDENORE.get()) return "pure_golden";
-		if (block == CustomOreGenModBlocks.IRONORE.get() || block == CustomOreGenModBlocks.DEEPSLATEIRONORE.get()) return "impure_iron";
-		if (block == CustomOreGenModBlocks.DEEPSLATEDIAMONDORE.get()) return "concentrated_diamond";
-		if (block == CustomOreGenModBlocks.LAPISORE.get() || block == CustomOreGenModBlocks.DEEPSLATELAPISORE.get()) return "lapis";
-		if (block == CustomOreGenModBlocks.REDSTONEORE.get() || block == CustomOreGenModBlocks.DEEPSLATEREDSTONEORE.get()) return "redstone";
-		if (block == CustomOreGenModBlocks.HIGHEMERALDORE.get() || block == CustomOreGenModBlocks.LOWEREMERALDORE.get()) return "emerald";
-		if (block == CustomOreGenModBlocks.COPPERHIGHORE.get() || block == CustomOreGenModBlocks.COPPERLOWERORE.get()) return "copper";
-		return null;
-	}
 }

src/main/java/net/mcreator/customoregen/item/OreBiomeFinderItem.java

@@ -1,6 +1,5 @@
 package net.mcreator.customoregen.item;
 
-import net.minecraft.ChatFormatting;
 import net.minecraft.network.chat.Component;
 import net.minecraft.world.InteractionHand;
 import net.minecraft.world.InteractionResultHolder;
@@ -9,34 +8,10 @@ import net.minecraft.world.item.Item;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.Level;
 
-import java.util.*;
-
-import net.mcreator.customoregen.worldgen.LatitudeConfig;
+import net.mcreator.customoregen.worldgen.OreZoneCatalog;
 
 public class OreBiomeFinderItem extends Item {
 
-	private static final List<String> COLD_ORES = Arrays.asList(
-			"Lapis (stone) [Y: 0 a 32]",
-			"Lapis (deepslate) [Y: -64 a 0]",
-			"Diamant (deepslate) [Y: -64 a 0]");
-
-	private static final List<String> HOT_ORES = Arrays.asList(
-			"Or (stone) [Y: 0 a 320]",
-			"Or (deepslate) [Y: -64 a 0]",
-			"Cuivre (haut) [Y: 15 a 320]",
-			"Cuivre (bas) [Y: -64 a 0]",
-			"Redstone (stone) [Y: -10 a 20]",
-			"Redstone (deepslate) [Y: -80 a -30]");
-
-	private static final List<String> TEMPERATE_ORES = Arrays.asList(
-			"Fer (stone) [Y: 0 a 100]",
-			"Fer (deepslate) [Y: -64 a 0]",
-			"Charbon concentre [Y: 0 a 70]");
-
-	private static final List<String> EVERYWHERE_ORES = Arrays.asList(
-			"Diamant Shard (deepslate) [Y: -64 a -40]",
-			"Bloc Diamant Shard [Y: 0 a 15]");
-
 	public OreBiomeFinderItem() {
 		super(new Item.Properties().stacksTo(1));
 	}
@@ -49,49 +24,11 @@ public class OreBiomeFinderItem extends Item {
 			int x = player.blockPosition().getX();
 			int z = player.blockPosition().getZ();
 
-			String zone = LatitudeConfig.zoneName(z);
-			int coldZ = LatitudeConfig.getColdZoneZ();
-			int hotZ = LatitudeConfig.getHotZoneZ();
-			ChatFormatting zoneColor = zoneColor(zone);
-
-			player.displayClientMessage(Component.literal(
-					"=== Position: X=" + x + "  Z=" + z + " ===").withStyle(ChatFormatting.GRAY), false);
-			player.displayClientMessage(Component.literal(
-					"Zone determinee par la coordonnee Z : " + zone).withStyle(zoneColor), false);
-			player.displayClientMessage(Component.literal(
-					"Z < " + coldZ + " = froid  |  " + coldZ + " a " + hotZ + " = tempere  |  Z > " + hotZ + " = chaud")
-					.withStyle(ChatFormatting.GRAY), false);
-
-			List<String> zoneOres = new ArrayList<>();
-			switch (zone) {
-				case "COLD" -> zoneOres.addAll(COLD_ORES);
-				case "HOT" -> zoneOres.addAll(HOT_ORES);
-				case "TEMPERATE" -> zoneOres.addAll(TEMPERATE_ORES);
-			}
-
-			Set<String> allOres = new LinkedHashSet<>(zoneOres);
-			allOres.addAll(EVERYWHERE_ORES);
-
-			player.displayClientMessage(Component.literal(
-					"Minerais trouvables (" + allOres.size() + ") :").withStyle(ChatFormatting.WHITE), false);
-			for (String ore : zoneOres) {
-				player.displayClientMessage(Component.literal("  * " + ore).withStyle(zoneColor), false);
-			}
-			for (String ore : EVERYWHERE_ORES) {
-				player.displayClientMessage(Component.literal("  * " + ore)
-						.withStyle(ChatFormatting.LIGHT_PURPLE), false);
+			for (Component line : OreZoneCatalog.buildZoneReport(x, z)) {
+				player.displayClientMessage(line, false);
 			}
 		}
 
 		return InteractionResultHolder.sidedSuccess(stack, level.isClientSide);
 	}
-
-	private static ChatFormatting zoneColor(String zone) {
-		return switch (zone) {
-			case "COLD" -> ChatFormatting.AQUA;
-			case "HOT" -> ChatFormatting.GOLD;
-			case "TEMPERATE" -> ChatFormatting.GREEN;
-			default -> ChatFormatting.WHITE;
-		};
-	}
 }

src/main/java/net/mcreator/customoregen/item/ShardDiamondToolTier.java

@@ -0,0 +1,87 @@
+package net.mcreator.customoregen.item;
+
+import java.util.function.DoubleSupplier;
+import java.util.function.IntSupplier;
+
+import net.minecraft.tags.BlockTags;
+import net.minecraft.tags.TagKey;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.Tier;
+import net.minecraft.world.item.crafting.Ingredient;
+import net.minecraft.world.level.block.Block;
+
+import net.mcreator.customoregen.config.ModConfigs;
+import net.mcreator.customoregen.init.CustomOreGenModItems;
+
+/**
+ * Shared {@link Tier} for all Shard Diamond tools (previously an anonymous Tier
+ * copy-pasted in each tool class). Stats are read live from the config, with
+ * fallbacks for the pre-config-load phase (item registration).
+ */
+public enum ShardDiamondToolTier implements Tier {
+	PICKAXE(200, 7.0f, 1.0f, 9,
+			() -> ModConfigs.TOOL_STATS.shardDiamondPickaxeDurability.get(),
+			() -> ModConfigs.TOOL_STATS.shardDiamondPickaxeSpeed.get(),
+			() -> ModConfigs.TOOL_STATS.shardDiamondPickaxeAttackDamage.get()),
+	AXE(200, 7.0f, 6.0f, 9,
+			() -> ModConfigs.TOOL_STATS.shardDiamondAxeDurability.get(),
+			() -> ModConfigs.TOOL_STATS.shardDiamondAxeSpeed.get(),
+			() -> ModConfigs.TOOL_STATS.shardDiamondAxeAttackDamage.get()),
+	SHOVEL(200, 4.0f, 2.0f, 9,
+			() -> ModConfigs.TOOL_STATS.shardDiamondShovelDurability.get(),
+			() -> ModConfigs.TOOL_STATS.shardDiamondShovelSpeed.get(),
+			() -> ModConfigs.TOOL_STATS.shardDiamondShovelAttackDamage.get()),
+	PAXEL(1000, 6.5f, 4.0f, 14,
+			() -> ModConfigs.TOOL_STATS.shardDiamondPaxelDurability.get(),
+			() -> ModConfigs.TOOL_STATS.shardDiamondPaxelSpeed.get(),
+			() -> ModConfigs.TOOL_STATS.shardDiamondPaxelAttackDamage.get());
+
+	private final int fallbackUses;
+	private final float fallbackSpeed;
+	private final float fallbackAttackDamage;
+	private final int enchantmentValue;
+	private final IntSupplier uses;
+	private final DoubleSupplier speed;
+	private final IntSupplier attackDamage;
+
+	ShardDiamondToolTier(int fallbackUses, float fallbackSpeed, float fallbackAttackDamage, int enchantmentValue,
+			IntSupplier uses, DoubleSupplier speed, IntSupplier attackDamage) {
+		this.fallbackUses = fallbackUses;
+		this.fallbackSpeed = fallbackSpeed;
+		this.fallbackAttackDamage = fallbackAttackDamage;
+		this.enchantmentValue = enchantmentValue;
+		this.uses = uses;
+		this.speed = speed;
+		this.attackDamage = attackDamage;
+	}
+
+	@Override
+	public int getUses() {
+		return ModConfigs.isLoaded() ? uses.getAsInt() : fallbackUses;
+	}
+
+	@Override
+	public float getSpeed() {
+		return ModConfigs.isLoaded() ? (float) speed.getAsDouble() : fallbackSpeed;
+	}
+
+	@Override
+	public float getAttackDamageBonus() {
+		return ModConfigs.isLoaded() ? attackDamage.getAsInt() : fallbackAttackDamage;
+	}
+
+	@Override
+	public int getEnchantmentValue() {
+		return enchantmentValue;
+	}
+
+	@Override
+	public Ingredient getRepairIngredient() {
+		return Ingredient.of(new ItemStack(CustomOreGenModItems.DIAMONDSHARD.get()));
+	}
+
+	@Override
+	public TagKey<Block> getIncorrectBlocksForDrops() {
+		return BlockTags.INCORRECT_FOR_DIAMOND_TOOL;
+	}
+}

src/main/java/net/mcreator/customoregen/item/SharddiamondaxeItem.java

@@ -1,46 +1,16 @@
 package net.mcreator.customoregen.item;
 
-import net.minecraft.world.item.crafting.Ingredient;
-import net.minecraft.world.item.Tier;
-import net.minecraft.world.item.Item;
 import net.minecraft.world.item.AxeItem;
 import net.minecraft.world.item.ItemStack;
-import net.minecraft.tags.TagKey;
+import net.minecraft.world.item.Item;
 import net.minecraft.tags.BlockTags;
 import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.level.block.Block;
 
-import net.mcreator.customoregen.init.CustomOreGenModItems;
 import net.mcreator.customoregen.config.ModConfigs;
 
 public class SharddiamondaxeItem extends AxeItem {
 	public SharddiamondaxeItem() {
-		super(new Tier() {
-			public int getUses() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondAxeDurability.get() : 200;
-			}
-
-			public float getSpeed() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondAxeSpeed.get().floatValue() : 7.0f;
-			}
-
-			public float getAttackDamageBonus() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondAxeAttackDamage.get().floatValue() : 6.0f;
-			}
-
-			public int getEnchantmentValue() {
-				return 9;
-			}
-
-			public Ingredient getRepairIngredient() {
-				return Ingredient.of(new ItemStack(CustomOreGenModItems.DIAMONDSHARD.get()));
-			}
-
-			// 1.21 - new method required - returns diamond-tier incorrect blocks
-			public TagKey<Block> getIncorrectBlocksForDrops() {
-				return BlockTags.INCORRECT_FOR_DIAMOND_TOOL;
-			}
-		}, new Item.Properties());
+		super(ShardDiamondToolTier.AXE, new Item.Properties());
 	}
 
 	@Override

src/main/java/net/mcreator/customoregen/item/SharddiamondpaxelItem.java

@@ -1,46 +1,16 @@
 package net.mcreator.customoregen.item;
 
-import net.minecraft.world.item.crafting.Ingredient;
-import net.minecraft.world.item.Tier;
 import net.minecraft.world.item.PickaxeItem;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.Item;
-import net.minecraft.tags.TagKey;
 import net.minecraft.tags.BlockTags;
 import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.level.block.Block;
 
-import net.mcreator.customoregen.init.CustomOreGenModItems;
 import net.mcreator.customoregen.config.ModConfigs;
 
 public class SharddiamondpaxelItem extends PickaxeItem {
 	public SharddiamondpaxelItem() {
-		super(new Tier() {
-			public int getUses() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondPaxelDurability.get() : 1000;
-			}
-
-			public float getSpeed() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondPaxelSpeed.get().floatValue() : 6.5f;
-			}
-
-			public float getAttackDamageBonus() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondPaxelAttackDamage.get().floatValue() : 4.0f;
-			}
-
-			public int getEnchantmentValue() {
-				return 14;
-			}
-
-			public Ingredient getRepairIngredient() {
-				return Ingredient.of(new ItemStack(CustomOreGenModItems.DIAMONDSHARD.get()));
-			}
-
-			// 1.21 - new method required - returns diamond-tier incorrect blocks
-			public TagKey<Block> getIncorrectBlocksForDrops() {
-				return BlockTags.INCORRECT_FOR_DIAMOND_TOOL;
-			}
-		}, new Item.Properties());
+		super(ShardDiamondToolTier.PAXEL, new Item.Properties());
 	}
 
 	@Override

src/main/java/net/mcreator/customoregen/item/SharddiamondpickaxeItem.java

@@ -1,47 +1,16 @@
-
 package net.mcreator.customoregen.item;
 
-import net.minecraft.world.item.crafting.Ingredient;
-import net.minecraft.world.item.Tier;
 import net.minecraft.world.item.PickaxeItem;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.Item;
-import net.minecraft.tags.TagKey;
 import net.minecraft.tags.BlockTags;
 import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.level.block.Block;
 
-import net.mcreator.customoregen.init.CustomOreGenModItems;
 import net.mcreator.customoregen.config.ModConfigs;
 
 public class SharddiamondpickaxeItem extends PickaxeItem {
 	public SharddiamondpickaxeItem() {
-		super(new Tier() {
-			public int getUses() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondPickaxeDurability.get() : 200;
-			}
-
-			public float getSpeed() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondPickaxeSpeed.get().floatValue() : 7.0f;
-			}
-
-			public float getAttackDamageBonus() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondPickaxeAttackDamage.get().floatValue() : 1.0f;
-			}
-
-			public int getEnchantmentValue() {
-				return 9;
-			}
-
-			public Ingredient getRepairIngredient() {
-				return Ingredient.of(new ItemStack(CustomOreGenModItems.DIAMONDSHARD.get()));
-			}
-
-			// 1.21 - new method required - returns diamond-tier incorrect blocks
-			public TagKey<Block> getIncorrectBlocksForDrops() {
-				return BlockTags.INCORRECT_FOR_DIAMOND_TOOL;
-			}
-		}, new Item.Properties());
+		super(ShardDiamondToolTier.PICKAXE, new Item.Properties());
 	}
 
 	@Override

src/main/java/net/mcreator/customoregen/item/SharddiamondshovelItem.java

@@ -1,47 +1,16 @@
-
 package net.mcreator.customoregen.item;
 
-import net.minecraft.world.item.crafting.Ingredient;
-import net.minecraft.world.item.Tier;
 import net.minecraft.world.item.ShovelItem;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.Item;
-import net.minecraft.tags.TagKey;
 import net.minecraft.tags.BlockTags;
 import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.level.block.Block;
 
-import net.mcreator.customoregen.init.CustomOreGenModItems;
 import net.mcreator.customoregen.config.ModConfigs;
 
 public class SharddiamondshovelItem extends ShovelItem {
 	public SharddiamondshovelItem() {
-		super(new Tier() {
-			public int getUses() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondShovelDurability.get() : 200;
-			}
-
-			public float getSpeed() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondShovelSpeed.get().floatValue() : 4.0f;
-			}
-
-			public float getAttackDamageBonus() {
-				return ModConfigs.isLoaded() ? ModConfigs.TOOL_STATS.shardDiamondShovelAttackDamage.get().floatValue() : 2.0f;
-			}
-
-			public int getEnchantmentValue() {
-				return 9;
-			}
-
-			public Ingredient getRepairIngredient() {
-				return Ingredient.of(new ItemStack(CustomOreGenModItems.DIAMONDSHARD.get()));
-			}
-
-			// 1.21 - new method required - returns diamond-tier incorrect blocks
-			public TagKey<Block> getIncorrectBlocksForDrops() {
-				return BlockTags.INCORRECT_FOR_DIAMOND_TOOL;
-			}
-		}, new Item.Properties());
+		super(ShardDiamondToolTier.SHOVEL, new Item.Properties());
 	}
 
 	@Override

src/main/java/net/mcreator/customoregen/loot/CustomOreLootModifier.java

@@ -3,6 +3,8 @@ package net.mcreator.customoregen.loot;
 import com.mojang.serialization.MapCodec;
 import com.mojang.serialization.codecs.RecordCodecBuilder;
 import it.unimi.dsi.fastutil.objects.ObjectArrayList;
+import net.minecraft.util.RandomSource;
+import net.minecraft.world.item.Item;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.Items;
 import net.minecraft.world.level.block.Block;
@@ -16,18 +18,57 @@ import net.neoforged.neoforge.common.loot.LootModifier;
 import net.minecraft.core.registries.Registries;
 import net.minecraft.world.item.enchantment.Enchantments;
 
+import net.mcreator.customoregen.OreTypes;
 import net.mcreator.customoregen.init.CustomOreGenModBlocks;
 import net.mcreator.customoregen.init.CustomOreGenModItems;
 import net.mcreator.customoregen.config.ModConfigs;
+import net.mcreator.customoregen.procedures.OreDropMath;
 import net.mcreator.customoregen.CustomOreGenMod;
 
+import java.util.Map;
+import java.util.function.Supplier;
+
 import javax.annotation.Nonnull;
 
 public class CustomOreLootModifier extends LootModifier {
-	public static final MapCodec<CustomOreLootModifier> CODEC = RecordCodecBuilder.mapCodec(inst -> 
+	public static final MapCodec<CustomOreLootModifier> CODEC = RecordCodecBuilder.mapCodec(inst ->
 		codecStart(inst).apply(inst, CustomOreLootModifier::new)
 	);
 
+	/** Drop parameters for one ore type, read live from the config. */
+	private record DropSpec(Supplier<Integer> minDrops, Supplier<Integer> maxDrops,
+							Supplier<Boolean> enableFortune, Supplier<Item> item) {}
+
+	private static final Map<String, DropSpec> DROP_SPECS = Map.of(
+			OreTypes.SHARD_DIAMOND, new DropSpec(ModConfigs.DROPS.shardDiamondOreMinDrops::get,
+					ModConfigs.DROPS.shardDiamondOreMaxDrops::get, ModConfigs.DROPS.shardDiamondOreEnableFortune::get,
+					CustomOreGenModItems.DIAMONDSHARD::get),
+			OreTypes.CONCENTRATED_DIAMOND, new DropSpec(ModConfigs.DROPS.concentratedDiamondOreMinDrops::get,
+					ModConfigs.DROPS.concentratedDiamondOreMaxDrops::get, ModConfigs.DROPS.concentratedDiamondOreEnableFortune::get,
+					() -> Items.DIAMOND),
+			OreTypes.CONCENTRATED_COAL, new DropSpec(ModConfigs.DROPS.concentratedCoalOreMinDrops::get,
+					ModConfigs.DROPS.concentratedCoalOreMaxDrops::get, ModConfigs.DROPS.concentratedCoalOreEnableFortune::get,
+					() -> Items.COAL),
+			OreTypes.PURE_GOLDEN, new DropSpec(ModConfigs.DROPS.pureGoldenOreMinDrops::get,
+					ModConfigs.DROPS.pureGoldenOreMaxDrops::get, ModConfigs.DROPS.pureGoldenOreEnableFortune::get,
+					() -> Items.RAW_GOLD),
+			OreTypes.IMPURE_IRON, new DropSpec(ModConfigs.DROPS.impureIronOreMinDrops::get,
+					ModConfigs.DROPS.impureIronOreMaxDrops::get, ModConfigs.DROPS.impureIronOreEnableFortune::get,
+					() -> Items.RAW_IRON),
+			OreTypes.LAPIS, new DropSpec(ModConfigs.DROPS.lapisOreMinDrops::get,
+					ModConfigs.DROPS.lapisOreMaxDrops::get, ModConfigs.DROPS.lapisOreEnableFortune::get,
+					() -> Items.LAPIS_LAZULI),
+			OreTypes.REDSTONE, new DropSpec(ModConfigs.DROPS.redstoneOreMinDrops::get,
+					ModConfigs.DROPS.redstoneOreMaxDrops::get, ModConfigs.DROPS.redstoneOreEnableFortune::get,
+					() -> Items.REDSTONE),
+			OreTypes.EMERALD, new DropSpec(ModConfigs.DROPS.emeraldOreMinDrops::get,
+					ModConfigs.DROPS.emeraldOreMaxDrops::get, () -> true,
+					() -> Items.EMERALD),
+			OreTypes.COPPER, new DropSpec(ModConfigs.DROPS.copperOreMinDrops::get,
+					ModConfigs.DROPS.copperOreMaxDrops::get, ModConfigs.DROPS.copperOreEnableFortune::get,
+					() -> Items.RAW_COPPER)
+	);
+
 	public CustomOreLootModifier(LootItemCondition[] conditionsIn) {
 		super(conditionsIn);
 	}
@@ -45,44 +86,40 @@ public class CustomOreLootModifier extends LootModifier {
 			if (state == null) return generatedLoot;
 
 			Block block = state.getBlock();
-			String oreType = getOreType(block);
+			String oreType = OreTypes.of(block);
 
 			if (oreType != null) {
 				ItemStack tool = context.getParamOrNull(LootContextParams.TOOL);
-				
-				// Check for Silk Touch
-				if (tool != null && !tool.isEmpty()) {
-					var registry = context.getLevel().registryAccess().lookupOrThrow(Registries.ENCHANTMENT);
-					int silkLevel = tool.getEnchantmentLevel(registry.getOrThrow(Enchantments.SILK_TOUCH));
-					
-					if (silkLevel > 0) {
-						// For Diamond Shard, we want to keep the modded block itself
-						if (oreType.equals("shard_diamond")) {
-							ObjectArrayList<ItemStack> shardLoot = new ObjectArrayList<>();
-							shardLoot.add(new ItemStack(block));
-							return shardLoot;
-						}
-						// For others, convert to vanilla block equivalent
-						ItemStack vanillaBlock = getVanillaBlockDrop(block);
-						if (!vanillaBlock.isEmpty()) {
-							ObjectArrayList<ItemStack> silkLoot = new ObjectArrayList<>();
-							silkLoot.add(vanillaBlock);
-							return silkLoot;
-						}
-						return generatedLoot;
+				var enchantmentRegistry = context.getLevel().registryAccess().lookupOrThrow(Registries.ENCHANTMENT);
+
+				// Silk Touch: drop the ore block itself instead of the custom drops
+				if (tool != null && !tool.isEmpty()
+						&& tool.getEnchantmentLevel(enchantmentRegistry.getOrThrow(Enchantments.SILK_TOUCH)) > 0) {
+					// For Diamond Shard, we want to keep the modded block itself
+					if (oreType.equals(OreTypes.SHARD_DIAMOND)) {
+						ObjectArrayList<ItemStack> shardLoot = new ObjectArrayList<>();
+						shardLoot.add(new ItemStack(block));
+						return shardLoot;
 					}
+					// For others, convert to vanilla block equivalent
+					ItemStack vanillaBlock = getVanillaBlockDrop(block);
+					if (!vanillaBlock.isEmpty()) {
+						ObjectArrayList<ItemStack> silkLoot = new ObjectArrayList<>();
+						silkLoot.add(vanillaBlock);
+						return silkLoot;
+					}
+					return generatedLoot;
 				}
 
-				// If not silk touch, replace with custom drops
-				ObjectArrayList<ItemStack> customDrops = new ObjectArrayList<>();
+				// No Silk Touch: replace with custom drops (fortune-aware)
 				int fortuneLevel = 0;
 				if (tool != null && !tool.isEmpty()) {
-					var registry = context.getLevel().registryAccess().lookupOrThrow(Registries.ENCHANTMENT);
-					fortuneLevel = tool.getEnchantmentLevel(registry.getOrThrow(Enchantments.FORTUNE));
+					fortuneLevel = tool.getEnchantmentLevel(enchantmentRegistry.getOrThrow(Enchantments.FORTUNE));
 				}
 
+				ObjectArrayList<ItemStack> customDrops = new ObjectArrayList<>();
 				addCustomDrops(customDrops, oreType, fortuneLevel, context.getRandom());
-				
+
 				// Only return custom drops if we generated some, otherwise fallback to original
 				if (!customDrops.isEmpty()) {
 					return customDrops;
@@ -91,21 +128,8 @@ public class CustomOreLootModifier extends LootModifier {
 		} catch (Exception e) {
 			CustomOreGenMod.LOGGER.error("Error applying CustomOreLootModifier", e);
 		}
-		
-		return generatedLoot;
-	}
 
-	private String getOreType(Block block) {
-		if (block == CustomOreGenModBlocks.SHARDDIAMONDBLOCKORE.get() || block == CustomOreGenModBlocks.DEEPSLATESHARDDIAMONDORE.get()) return "shard_diamond";
-		if (block == CustomOreGenModBlocks.CONCENTRATEDCOALORE.get()) return "concentrated_coal";
-		if (block == CustomOreGenModBlocks.PUREGOLDENORE.get() || block == CustomOreGenModBlocks.DEEPSLATEPUREGOLDENORE.get()) return "pure_golden";
-		if (block == CustomOreGenModBlocks.IRONORE.get() || block == CustomOreGenModBlocks.DEEPSLATEIRONORE.get()) return "impure_iron";
-		if (block == CustomOreGenModBlocks.DEEPSLATEDIAMONDORE.get()) return "concentrated_diamond";
-		if (block == CustomOreGenModBlocks.LAPISORE.get() || block == CustomOreGenModBlocks.DEEPSLATELAPISORE.get()) return "lapis";
-		if (block == CustomOreGenModBlocks.REDSTONEORE.get() || block == CustomOreGenModBlocks.DEEPSLATEREDSTONEORE.get()) return "redstone";
-		if (block == CustomOreGenModBlocks.HIGHEMERALDORE.get() || block == CustomOreGenModBlocks.LOWEREMERALDORE.get()) return "emerald";
-		if (block == CustomOreGenModBlocks.COPPERHIGHORE.get() || block == CustomOreGenModBlocks.COPPERLOWERORE.get()) return "copper";
-		return null;
+		return generatedLoot;
 	}
 
 	private ItemStack getVanillaBlockDrop(Block block) {
@@ -126,87 +150,14 @@ public class CustomOreLootModifier extends LootModifier {
 		return ItemStack.EMPTY;
 	}
 
-	private void addCustomDrops(ObjectArrayList<ItemStack> drops, String oreType, int fortuneLevel, net.minecraft.util.RandomSource random) {
-		int minDrops = 1;
-		int maxDrops = 1;
-		boolean enableFortune = true;
-		ItemStack dropItem = ItemStack.EMPTY;
-
-		switch (oreType) {
-			case "shard_diamond":
-				minDrops = ModConfigs.DROPS.shardDiamondOreMinDrops.get();
-				maxDrops = ModConfigs.DROPS.shardDiamondOreMaxDrops.get();
-				enableFortune = ModConfigs.DROPS.shardDiamondOreEnableFortune.get();
-				dropItem = new ItemStack(CustomOreGenModItems.DIAMONDSHARD.get());
-				break;
-			case "concentrated_diamond":
-				minDrops = ModConfigs.DROPS.concentratedDiamondOreMinDrops.get();
-				maxDrops = ModConfigs.DROPS.concentratedDiamondOreMaxDrops.get();
-				enableFortune = ModConfigs.DROPS.concentratedDiamondOreEnableFortune.get();
-				dropItem = new ItemStack(Items.DIAMOND);
-				break;
-			case "concentrated_coal":
-				minDrops = ModConfigs.DROPS.concentratedCoalOreMinDrops.get();
-				maxDrops = ModConfigs.DROPS.concentratedCoalOreMaxDrops.get();
-				enableFortune = ModConfigs.DROPS.concentratedCoalOreEnableFortune.get();
-				dropItem = new ItemStack(Items.COAL);
-				break;
-			case "pure_golden":
-				minDrops = ModConfigs.DROPS.pureGoldenOreMinDrops.get();
-				maxDrops = ModConfigs.DROPS.pureGoldenOreMaxDrops.get();
-				enableFortune = ModConfigs.DROPS.pureGoldenOreEnableFortune.get();
-				dropItem = new ItemStack(Items.RAW_GOLD);
-				break;
-			case "impure_iron":
-				minDrops = ModConfigs.DROPS.impureIronOreMinDrops.get();
-				maxDrops = ModConfigs.DROPS.impureIronOreMaxDrops.get();
-				enableFortune = ModConfigs.DROPS.impureIronOreEnableFortune.get();
-				dropItem = new ItemStack(Items.RAW_IRON);
-				break;
-			case "lapis":
-				minDrops = ModConfigs.DROPS.lapisOreMinDrops.get();
-				maxDrops = ModConfigs.DROPS.lapisOreMaxDrops.get();
-				enableFortune = ModConfigs.DROPS.lapisOreEnableFortune.get();
-				dropItem = new ItemStack(Items.LAPIS_LAZULI);
-				break;
-			case "redstone":
-				minDrops = ModConfigs.DROPS.redstoneOreMinDrops.get();
-				maxDrops = ModConfigs.DROPS.redstoneOreMaxDrops.get();
-				enableFortune = ModConfigs.DROPS.redstoneOreEnableFortune.get();
-				dropItem = new ItemStack(Items.REDSTONE);
-				break;
-			case "emerald":
-				minDrops = ModConfigs.DROPS.emeraldOreMinDrops.get();
-				maxDrops = ModConfigs.DROPS.emeraldOreMaxDrops.get();
-				dropItem = new ItemStack(Items.EMERALD);
-				break;
-			case "copper":
-				minDrops = ModConfigs.DROPS.copperOreMinDrops.get();
-				maxDrops = ModConfigs.DROPS.copperOreMaxDrops.get();
-				enableFortune = ModConfigs.DROPS.copperOreEnableFortune.get();
-				dropItem = new ItemStack(Items.RAW_COPPER);
-				break;
-		}
-
-		if (dropItem.isEmpty()) return;
-
-		int dropCount = minDrops + (maxDrops > minDrops ? random.nextInt(maxDrops - minDrops + 1) : 0);
-
-		if (enableFortune && fortuneLevel > 0) {
-			if (oreType.equals("lapis") || oreType.equals("copper") || oreType.equals("redstone")) {
-				int multiplier = random.nextInt(fortuneLevel + 2) - 1;
-				if (multiplier < 0) multiplier = 0;
-				dropCount *= (multiplier + 1);
-			} else {
-				int fortuneBonus = random.nextInt(fortuneLevel + 2) - 1;
-				if (fortuneBonus < 0) fortuneBonus = 0;
-				dropCount += fortuneBonus;
-			}
-		}
+	private void addCustomDrops(ObjectArrayList<ItemStack> drops, String oreType, int fortuneLevel, RandomSource random) {
+		DropSpec spec = DROP_SPECS.get(oreType);
+		if (spec == null) return;
 
+		int dropCount = OreDropMath.dropCount(oreType, spec.minDrops().get(), spec.maxDrops().get(),
+				spec.enableFortune().get(), fortuneLevel, random::nextInt);
 		if (dropCount > 0) {
-			dropItem.setCount(dropCount);
-			drops.add(dropItem);
+			drops.add(new ItemStack(spec.item().get(), dropCount));
 		}
 	}
 }

src/main/java/net/mcreator/customoregen/procedures/ConfigurableOreDropsProcedure.java

@@ -34,7 +34,7 @@ public class ConfigurableOreDropsProcedure {
 			return;
 		}
 
-		int expAmount = OreDropMath.experienceFor(oreType, new Random());
+		int expAmount = OreDropMath.experienceFor(oreType, new Random()::nextInt);
 		if (expAmount > 0 && world instanceof ServerLevel serverLevel) {
 			serverLevel.addFreshEntity(new ExperienceOrb(serverLevel, x + 0.5, y + 0.5, z + 0.5, expAmount));
 		}

src/main/java/net/mcreator/customoregen/procedures/OreDropMath.java

@@ -1,18 +1,24 @@
 package net.mcreator.customoregen.procedures;
 
-import java.util.Random;
-
 /**
  * Pure (Minecraft-free) ore drop math, extracted from {@link ConfigurableOreDropsProcedure}
  * so it can be unit-tested without a game server. The procedure delegates the drop-count and
  * experience calculations here, which mirrors vanilla 1.21 behaviour for the multi-drop ores
  * (Lapis, Copper, Redstone) vs the discrete ores (Diamond, Coal, Emerald).
  *
- * <p>All methods are deterministic given the {@link Random} argument, so tests can pin exact
- * outputs with a seeded {@code Random}.</p>
+ * <p>All methods draw randomness through {@link IntRandom}, so they accept both
+ * {@code new Random(seed)::nextInt} (deterministic unit tests) and
+ * {@code lootContext.getRandom()::nextInt} (world-seeded Minecraft {@code RandomSource}).</p>
  */
 public final class OreDropMath {
 
+	/** Minimal random source abstraction: compatible with both {@link java.util.Random} and
+	 * Minecraft's {@code RandomSource} via a {@code ::nextInt} method reference. */
+	@FunctionalInterface
+	public interface IntRandom {
+		int nextInt(int bound);
+	}
+
 	private OreDropMath() {}
 
 	/**
@@ -29,7 +35,7 @@ public final class OreDropMath {
 	 * {@code minDrops + random.nextInt(maxDrops - minDrops + 1)} when {@code maxDrops > minDrops},
 	 * else {@code minDrops} (no-op random draw when the range is a single value).
 	 */
-	public static int baseDropCount(int minDrops, int maxDrops, Random random) {
+	public static int baseDropCount(int minDrops, int maxDrops, IntRandom random) {
 		if (maxDrops > minDrops) {
 			return minDrops + random.nextInt(maxDrops - minDrops + 1);
 		}
@@ -49,7 +55,7 @@ public final class OreDropMath {
 	 * (and no random draw is consumed, matching the procedure guard).</p>
 	 */
 	public static int applyFortune(String oreType, int baseCount, boolean enableFortune,
-								  int fortuneLevel, Random random) {
+								  int fortuneLevel, IntRandom random) {
 		if (!enableFortune || fortuneLevel <= 0) {
 			return baseCount;
 		}
@@ -69,7 +75,7 @@ public final class OreDropMath {
 	 * single fortune draw).
 	 */
 	public static int dropCount(String oreType, int minDrops, int maxDrops,
-							   boolean enableFortune, int fortuneLevel, Random random) {
+							   boolean enableFortune, int fortuneLevel, IntRandom random) {
 		int base = baseDropCount(minDrops, maxDrops, random);
 		return applyFortune(oreType, base, enableFortune, fortuneLevel, random);
 	}
@@ -80,7 +86,7 @@ public final class OreDropMath {
 	 *
 	 * @return XP amount in {@code [0, max]} for the ore type, or 0 if the type does not drop XP
 	 */
-	public static int experienceFor(String oreType, Random random) {
+	public static int experienceFor(String oreType, IntRandom random) {
 		switch (oreType) {
 			case "concentrated_coal":
 				return random.nextInt(3);                 // 0-2

src/main/java/net/mcreator/customoregen/worldgen/OreZoneCatalog.java

@@ -0,0 +1,86 @@
+package net.mcreator.customoregen.worldgen;
+
+import java.util.List;
+import java.util.ArrayList;
+
+import net.minecraft.ChatFormatting;
+import net.minecraft.network.chat.Component;
+
+/**
+ * Shared "which ores generate at this Z" report, used by both the {@code /ores} command
+ * and the Ore Biome Finder item (previously copy-pasted in both classes).
+ *
+ * <p>Each caller decides how to deliver the lines (command feedback vs client chat).</p>
+ */
+public final class OreZoneCatalog {
+
+	private static final List<String> COLD_ORES = List.of(
+			"Lapis (stone) [Y: 0 a 32]",
+			"Lapis (deepslate) [Y: -64 a 0]",
+			"Diamant (deepslate) [Y: -64 a 0]");
+
+	private static final List<String> HOT_ORES = List.of(
+			"Or (stone) [Y: 0 a 320]",
+			"Or (deepslate) [Y: -64 a 0]",
+			"Cuivre (haut) [Y: 15 a 320]",
+			"Cuivre (bas) [Y: -64 a 0]",
+			"Redstone (stone) [Y: -10 a 20]",
+			"Redstone (deepslate) [Y: -80 a -30]");
+
+	private static final List<String> TEMPERATE_ORES = List.of(
+			"Fer (stone) [Y: 0 a 100]",
+			"Fer (deepslate) [Y: -64 a 0]",
+			"Charbon concentre [Y: 0 a 70]");
+
+	private static final List<String> EVERYWHERE_ORES = List.of(
+			"Diamant Shard (deepslate) [Y: -64 a -40]",
+			"Bloc Diamant Shard [Y: 0 a 15]");
+
+	private OreZoneCatalog() {}
+
+	/** Ores specific to the given zone ("COLD", "HOT" or "TEMPERATE"). */
+	public static List<String> oresForZone(String zone) {
+		return switch (zone) {
+			case "COLD" -> COLD_ORES;
+			case "HOT" -> HOT_ORES;
+			default -> TEMPERATE_ORES;
+		};
+	}
+
+	/** Color associated with a zone for chat output. */
+	public static ChatFormatting zoneColor(String zone) {
+		return switch (zone) {
+			case "COLD" -> ChatFormatting.AQUA;
+			case "HOT" -> ChatFormatting.GOLD;
+			case "TEMPERATE" -> ChatFormatting.GREEN;
+			default -> ChatFormatting.WHITE;
+		};
+	}
+
+	/**
+	 * Builds the full zone report (position, zone, thresholds, ore list) as chat components,
+	 * one per line.
+	 */
+	public static List<Component> buildZoneReport(int x, int z) {
+		String zone = LatitudeConfig.zoneName(z);
+		int coldZ = LatitudeConfig.getColdZoneZ();
+		int hotZ = LatitudeConfig.getHotZoneZ();
+		ChatFormatting zoneColor = zoneColor(zone);
+		List<String> zoneOres = oresForZone(zone);
+
+		List<Component> lines = new ArrayList<>();
+		lines.add(Component.literal("=== Position: X=" + x + "  Z=" + z + " ===").withStyle(ChatFormatting.GRAY));
+		lines.add(Component.literal("Zone determinee par la coordonnee Z : " + zone).withStyle(zoneColor));
+		lines.add(Component.literal("Z < " + coldZ + " = froid  |  " + coldZ + " a " + hotZ + " = tempere  |  Z > " + hotZ + " = chaud")
+				.withStyle(ChatFormatting.GRAY));
+		lines.add(Component.literal("Minerais trouvables (" + (zoneOres.size() + EVERYWHERE_ORES.size()) + ") :")
+				.withStyle(ChatFormatting.WHITE));
+		for (String ore : zoneOres) {
+			lines.add(Component.literal("  * " + ore).withStyle(zoneColor));
+		}
+		for (String ore : EVERYWHERE_ORES) {
+			lines.add(Component.literal("  * " + ore).withStyle(ChatFormatting.LIGHT_PURPLE));
+		}
+		return lines;
+	}
+}

src/test/java/net/mcreator/customoregen/procedures/OreDropMathTest.java

@@ -52,7 +52,7 @@ class OreDropMathTest {
 	void baseDropCount_range() {
 		Random rng = new Random(42L);
 		for (int i = 0; i < 10_000; i++) {
-			int c = OreDropMath.baseDropCount(2, 5, rng);
+			int c = OreDropMath.baseDropCount(2, 5, rng::nextInt);
 			assertTrue(c >= 2 && c <= 5, "out of [2,5]: " + c);
 		}
 	}
@@ -64,7 +64,7 @@ class OreDropMathTest {
 		Random rng = new Random(7L);
 		boolean[] seen = new boolean[10];
 		for (int i = 0; i < 60_000; i++) {
-			seen[OreDropMath.baseDropCount(4, 9, rng)] = true;
+			seen[OreDropMath.baseDropCount(4, 9, rng::nextInt)] = true;
 		}
 		for (int v = 4; v <= 9; v++) {
 			assertTrue(seen[v], "value " + v + " never appeared in [4,9] base draw");
@@ -79,7 +79,7 @@ class OreDropMathTest {
 		// Vanilla Emerald default: 1..1 -> always 1, and the random must NOT be consumed
 		// (so that the subsequent Fortune draw lands on the same sequence).
 		Random rngA = new Random(123L);
-		int c = OreDropMath.baseDropCount(1, 1, rngA);
+		int c = OreDropMath.baseDropCount(1, 1, rngA::nextInt);
 		assertEquals(1, c);
 
 		// Verify no random draw happened: an identical RNG feeding dropCount()+fortune must
@@ -102,7 +102,7 @@ class OreDropMathTest {
 		// When Fortune is disabled, the RNG must not be consumed at all.
 		Random rngA = new Random(999L);
 		Random rngB = new Random(999L);
-		int with = OreDropMath.applyFortune("shard_diamond", 3, false, 3, rngA);
+		int with = OreDropMath.applyFortune("shard_diamond", 3, false, 3, rngA::nextInt);
 		assertEquals(3, with);
 		assertEquals(rngB.nextInt(), rngA.nextInt(),
 				"disabled fortune must not consume a random draw");
@@ -113,7 +113,7 @@ class OreDropMathTest {
 	void applyFortune_zeroLevelIsNoOp() {
 		Random rngA = new Random(999L);
 		Random rngB = new Random(999L);
-		int with = OreDropMath.applyFortune("shard_diamond", 3, true, 0, rngA);
+		int with = OreDropMath.applyFortune("shard_diamond", 3, true, 0, rngA::nextInt);
 		assertEquals(3, with);
 		assertEquals(rngB.nextInt(), rngA.nextInt(),
 				"fortune level 0 must not consume a random draw");
@@ -131,7 +131,7 @@ class OreDropMathTest {
 				Random rng = new Random(1L);
 				for (int i = 0; i < 5_000; i++) {
 					int base = 1 + rng.nextInt(8);
-					int with = OreDropMath.applyFortune(t, base, true, fortune, rng);
+					int with = OreDropMath.applyFortune(t, base, true, fortune, rng::nextInt);
 					assertTrue(with >= base,
 							t + " fortune=" + fortune + " base=" + base + " -> " + with + " < base");
 					assertTrue(with >= 0, t + " fortune result negative: " + with);
@@ -154,7 +154,7 @@ class OreDropMathTest {
 				Random rng = new Random(t.hashCode() + fortune);
 				int min = Integer.MAX_VALUE, max = Integer.MIN_VALUE;
 				for (int i = 0; i < 20_000; i++) {
-					int with = OreDropMath.applyFortune(t, 1, true, fortune, rng);
+					int with = OreDropMath.applyFortune(t, 1, true, fortune, rng::nextInt);
 					// base=1, so 'with' equals 1 + bonus in [1, 1+fortune]
 					assertTrue(with >= 1 && with <= 1 + fortune,
 							t + " fortune=" + fortune + " with=" + with + " outside [1," + (1 + fortune) + "]");
@@ -176,7 +176,7 @@ class OreDropMathTest {
 		int[] counts = new int[5]; // index 0..4
 		int n = 200_000;
 		for (int i = 0; i < n; i++) {
-			counts[OreDropMath.applyFortune("shard_diamond", 1, true, 3, rng)]++;
+			counts[OreDropMath.applyFortune("shard_diamond", 1, true, 3, rng::nextInt)]++;
 		}
 		// Allow generous tolerance ±5% for RNG noise.
 		assertRatio("discrete fortune III base=1 -> outcome 1 (+0)", counts[1] / (double) n, 0.40, 0.05);
@@ -201,7 +201,7 @@ class OreDropMathTest {
 				Random rng = new Random(t.hashCode() + fortune * 7);
 				for (int i = 0; i < 10_000; i++) {
 					int base = 4; // vanilla lapis-ish
-					int with = OreDropMath.applyFortune(t, base, true, fortune, rng);
+					int with = OreDropMath.applyFortune(t, base, true, fortune, rng::nextInt);
 					assertTrue(with % base == 0,
 							t + " multiplier result " + with + " is not a multiple of base " + base);
 					assertTrue(with >= base && with <= base * (fortune + 1),
@@ -220,7 +220,7 @@ class OreDropMathTest {
 		int[] counts = new int[8];
 		int n = 200_000;
 		for (int i = 0; i < n; i++) {
-			counts[OreDropMath.applyFortune("lapis", 1, true, 3, rng)]++;
+			counts[OreDropMath.applyFortune("lapis", 1, true, 3, rng::nextInt)]++;
 		}
 		assertRatio("lapis multiplier fortune III -> result 1 (x1)", counts[1] / (double) n, 0.40, 0.05);
 		assertRatio("lapis multiplier fortune III -> result 2 (x2)", counts[2] / (double) n, 0.20, 0.05);
@@ -239,11 +239,11 @@ class OreDropMathTest {
 		// SAME continuation of the RNG. This guards against subtle behaviour drift if a refactor
 		// reorders the random draws.
 		Random rngA = new Random(55L);
-		int base = OreDropMath.baseDropCount(4, 9, rngA);
-		int fortune = OreDropMath.applyFortune("lapis", base, true, 3, rngA);
+		int base = OreDropMath.baseDropCount(4, 9, rngA::nextInt);
+		int fortune = OreDropMath.applyFortune("lapis", base, true, 3, rngA::nextInt);
 
 		Random rngB = new Random(55L);
-		int combined = OreDropMath.dropCount("lapis", 4, 9, true, 3, rngB);
+		int combined = OreDropMath.dropCount("lapis", 4, 9, true, 3, rngB::nextInt);
 
 		assertEquals(fortune, combined, "dropCount must be base+fortune in order");
 	}
@@ -256,12 +256,12 @@ class OreDropMathTest {
 	@DisplayName("XP: iron/gold/copper/unknown drop 0 raw XP")
 	void experienceFor_zeroXpTypes() {
 		Random rng = new Random(1L);
-		assertEquals(0, OreDropMath.experienceFor("impure_iron", rng));
-		assertEquals(0, OreDropMath.experienceFor("impure_gold", rng));
-		assertEquals(0, OreDropMath.experienceFor("pure_golden", rng));
-		assertEquals(0, OreDropMath.experienceFor("copper", rng));
-		assertEquals(0, OreDropMath.experienceFor("unknown", rng));
-		assertEquals(0, OreDropMath.experienceFor("", rng));
+		assertEquals(0, OreDropMath.experienceFor("impure_iron", rng::nextInt));
+		assertEquals(0, OreDropMath.experienceFor("impure_gold", rng::nextInt));
+		assertEquals(0, OreDropMath.experienceFor("pure_golden", rng::nextInt));
+		assertEquals(0, OreDropMath.experienceFor("copper", rng::nextInt));
+		assertEquals(0, OreDropMath.experienceFor("unknown", rng::nextInt));
+		assertEquals(0, OreDropMath.experienceFor("", rng::nextInt));
 	}
 
 	@Test
@@ -270,24 +270,24 @@ class OreDropMathTest {
 		Random rng = new Random(2L);
 		// coal: 0-2
 		for (int i = 0; i < 5_000; i++) {
-			int xp = OreDropMath.experienceFor("concentrated_coal", rng);
+			int xp = OreDropMath.experienceFor("concentrated_coal", rng::nextInt);
 			assertTrue(xp >= 0 && xp <= 2, "coal XP " + xp + " out of [0,2]");
 		}
 		// diamond/emerald/shard: 3-7
 		for (String t : new String[]{"shard_diamond", "concentrated_diamond", "emerald"}) {
 			for (int i = 0; i < 5_000; i++) {
-				int xp = OreDropMath.experienceFor(t, rng);
+				int xp = OreDropMath.experienceFor(t, rng::nextInt);
 				assertTrue(xp >= 3 && xp <= 7, t + " XP " + xp + " out of [3,7]");
 			}
 		}
 		// lapis: 2-5
 		for (int i = 0; i < 5_000; i++) {
-			int xp = OreDropMath.experienceFor("lapis", rng);
+			int xp = OreDropMath.experienceFor("lapis", rng::nextInt);
 			assertTrue(xp >= 2 && xp <= 5, "lapis XP " + xp + " out of [2,5]");
 		}
 		// redstone: 1-5
 		for (int i = 0; i < 5_000; i++) {
-			int xp = OreDropMath.experienceFor("redstone", rng);
+			int xp = OreDropMath.experienceFor("redstone", rng::nextInt);
 			assertTrue(xp >= 1 && xp <= 5, "redstone XP " + xp + " out of [1,5]");
 		}
 	}
@@ -300,9 +300,9 @@ class OreDropMathTest {
 		boolean[] redstoneSeen = new boolean[6];    // 1..5
 		boolean[] diamondSeen = new boolean[8];      // 3..7
 		for (int i = 0; i < 100_000; i++) {
-			coalSeen[OreDropMath.experienceFor("concentrated_coal", rng)] = true;
-			redstoneSeen[OreDropMath.experienceFor("redstone", rng)] = true;
-			diamondSeen[OreDropMath.experienceFor("emerald", rng)] = true;
+			coalSeen[OreDropMath.experienceFor("concentrated_coal", rng::nextInt)] = true;
+			redstoneSeen[OreDropMath.experienceFor("redstone", rng::nextInt)] = true;
+			diamondSeen[OreDropMath.experienceFor("emerald", rng::nextInt)] = true;
 		}
 		for (int v = 0; v <= 2; v++) assertTrue(coalSeen[v], "coal XP " + v + " never observed");
 		for (int v = 1; v <= 5; v++) assertTrue(redstoneSeen[v], "redstone XP " + v + " never observed");
@@ -321,11 +321,11 @@ class OreDropMathTest {
 		Random rngA = new Random(0xC0FFEE);
 		Random rngB = new Random(0xC0FFEE);
 		for (String t : oreTypes) {
-			int da = OreDropMath.dropCount(t, 2, 5, true, 3, rngA);
-			int db = OreDropMath.dropCount(t, 2, 5, true, 3, rngB);
+			int da = OreDropMath.dropCount(t, 2, 5, true, 3, rngA::nextInt);
+			int db = OreDropMath.dropCount(t, 2, 5, true, 3, rngB::nextInt);
 			assertEquals(da, db, t + " dropCount diverged with same seed");
-			int xa = OreDropMath.experienceFor(t, rngA);
-			int xb = OreDropMath.experienceFor(t, rngB);
+			int xa = OreDropMath.experienceFor(t, rngA::nextInt);
+			int xb = OreDropMath.experienceFor(t, rngB::nextInt);
 			assertEquals(xa, xb, t + " XP diverged with same seed");
 		}
 	}

src/test/java/net/mcreator/customoregen/worldgen/OreZoneCatalogTest.java

@@ -0,0 +1,72 @@
+package net.mcreator.customoregen.worldgen;
+
+import net.minecraft.network.chat.Component;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+/**
+ * Tests for the shared zone report used by the /ores command and the Ore Biome Finder item.
+ *
+ * Note: the default config thresholds (cold: Z < -8000, hot: Z > 8000) apply because
+ * the config is not loaded in unit tests (LatitudeConfig falls back to its defaults).
+ */
+@DisplayName("OreZoneCatalog Tests")
+class OreZoneCatalogTest {
+
+    private static String reportText(int x, int z) {
+        List<Component> report = OreZoneCatalog.buildZoneReport(x, z);
+        StringBuilder sb = new StringBuilder();
+        for (Component line : report) {
+            sb.append(line.getString()).append('\n');
+        }
+        return sb.toString();
+    }
+
+    @Test
+    @DisplayName("Cold zone report lists cold ores plus shard ores")
+    void testReport_ColdZone() {
+        String report = reportText(100, -10000);
+        assertTrue(report.contains("COLD"), "should name the COLD zone");
+        assertTrue(report.contains("Lapis"), "cold zone should list lapis");
+        assertTrue(report.contains("Diamant Shard"), "everywhere ores should always be listed");
+        assertFalse(report.contains("Cuivre"), "cold zone should not list hot ores");
+        // 3 cold ores + 2 everywhere ores
+        assertTrue(report.contains("Minerais trouvables (5)"), "should count 3 zone ores + 2 everywhere ores");
+    }
+
+    @Test
+    @DisplayName("Hot zone report lists hot ores plus shard ores")
+    void testReport_HotZone() {
+        String report = reportText(0, 20000);
+        assertTrue(report.contains("HOT"), "should name the HOT zone");
+        assertTrue(report.contains("Cuivre"), "hot zone should list copper");
+        assertTrue(report.contains("Redstone"), "hot zone should list redstone");
+        // 6 hot ores + 2 everywhere ores
+        assertTrue(report.contains("Minerais trouvables (8)"), "should count 6 zone ores + 2 everywhere ores");
+    }
+
+    @Test
+    @DisplayName("Temperate zone report lists temperate ores plus shard ores")
+    void testReport_TemperateZone() {
+        String report = reportText(-50, 0);
+        assertTrue(report.contains("TEMPERATE"), "should name the TEMPERATE zone");
+        assertTrue(report.contains("Fer"), "temperate zone should list iron");
+        assertFalse(report.contains("Lapis"), "temperate zone should not list cold ores");
+        // 3 temperate ores + 2 everywhere ores
+        assertTrue(report.contains("Minerais trouvables (5)"), "should count 3 zone ores + 2 everywhere ores");
+    }
+
+    @Test
+    @DisplayName("Report includes position and zone thresholds")
+    void testReport_ContainsPositionAndThresholds() {
+        String report = reportText(123, -456);
+        assertTrue(report.contains("X=123"), "should show the X coordinate");
+        assertTrue(report.contains("Z=-456"), "should show the Z coordinate");
+        assertTrue(report.contains("-8000"), "should show the cold threshold");
+        assertTrue(report.contains("8000"), "should show the hot threshold");
+    }
+}