Ok so when I try to enchant my tool or sword in anvil, it costs 1 EXP then after you enchant the tool, you won't see the violet glow as an indication that this tool is enchanted and it's not really even enchanted just plain unenchanted modded sword. But Armor just works fine in enchantments.

ModTools: https://pastebin.com/SCWLWTde

ModArmour: https://pastebin.com/AWv5cCNZ

 

ItemArmour:

package com.TheRPGAdventurer.ROTD.client.items;

import com.TheRPGAdventurer.ROTD.RealmOfTheDragons;

import net.minecraft.inventory.EntityEquipmentSlot;
import net.minecraft.item.ItemArmor;
import net.minecraft.item.ItemStack;
import net.minecraft.util.ResourceLocation;

public class ItemModArmour extends ItemArmor {
	
    private final ItemArmor.ArmorMaterial material;

	public ItemModArmour(ArmorMaterial materialIn, int renderIndexIn, EntityEquipmentSlot equipmentSlotIn, String unlocalizedName) {
		super(materialIn, renderIndexIn, equipmentSlotIn);
		this.setUnlocalizedName(unlocalizedName);
		this.material = materialIn;
		this.setRegistryName(new ResourceLocation(RealmOfTheDragons.MODID, unlocalizedName));
		
	}
	
}

PickAxe

package com.TheRPGAdventurer.ROTD.client.items;

import com.TheRPGAdventurer.ROTD.RealmOfTheDragons;

import net.minecraft.item.ItemPickaxe;
import net.minecraft.item.ItemStack;
import net.minecraft.util.ResourceLocation;

public class ItemModPickAxe extends ItemPickaxe {

	public ItemModPickAxe(ToolMaterial material, String unlocalizedName) {
		super(material);
		this.setUnlocalizedName(unlocalizedName);
		this.isRepairable();
		this.setRegistryName(new ResourceLocation(RealmOfTheDragons.MODID, unlocalizedName));
		
	}
	
}

Sword

package com.TheRPGAdventurer.ROTD.client.items;

import com.TheRPGAdventurer.ROTD.RealmOfTheDragons;

import net.minecraft.item.ItemStack;
import net.minecraft.item.ItemSword;
import net.minecraft.util.ResourceLocation;

public class ItemModSword extends ItemSword {

	public ItemModSword(ToolMaterial material, String unlocalizedName) {
		super(material);
		this.setUnlocalizedName(unlocalizedName);
		this.setRegistryName(new ResourceLocation(RealmOfTheDragons.MODID, unlocalizedName));
		
	}
	
	
}

Registry: https://pastebin.com/yvR0WxWu

Override 'getItemEnchantability' and return respective tool material enchantability.

Just now, Alexiy said:

Override 'getItemEnchantability' and return respective tool material enchantability.

Edit: Only happens on swords, other tools are fine