I was following Harry talks tutorial to weapons and tools, and while following, i encountered an error when making the SwordItem on this line:

 

 

"ItemList.wooden_katana = new SwordItem(ToolMaterialList.katana_wooden_material, -1.0f, 6.0f, new Item.Properties().group(ItemGroup.MISC)).setRegistryName(location(wooden_katana));"

 

 

At the end of this line, where it says "wooden_katana", it gives the following error:

 

"wooden_katana cannot be resolved to a variable"

 

even though i set the variable in the class "ToolMaterialList".

 

The second error on the line is shown in the typical red underlines from "new SwordItem" to "ItemGroup.Misc))" which says:

 

"The constructor SwordItem(ToolMaterialList, float, float, Item.Properties) is undefined"

 

How do I fix these errors?

 

ToolMaterialList.java

 

package redstonewiz.asianweaponry.lists;

import net.minecraft.item.IItemTier;
import net.minecraft.item.Item;
import net.minecraft.item.crafting.Ingredient;

public enum ToolMaterialList implements IItemTier 
{
	katana_diamond_material(3.0F, 0.0F, 2000, 3, 14, ItemList.katana_diamond_material),
	katana_iron_material(2.5F, 0.0F, 2000, 3, 14, ItemList.katana_diamond_material),
	katana_gold_material(1F, 0.0F, 2000, 3, 14, ItemList.katana_diamond_material),
	katana_stone_material(2.0F, 0.0F, 2000, 3, 14, ItemList.katana_diamond_material),
	katana_wooden_material(1.0F, 0.0F, 2000, 3, 14, ItemList.katana_diamond_material);
	
	private float attackDamage, efficiency;
	private int durability, HarvestLevel, enchantibility;
	private Item repairMaterial;
	
	private ToolMaterialList(float attackDamage, float efficiency, int durability, int HarvestLevel, int enchantibility, Item repairMaterial) 
	{
		// TODO Auto-generated constructor stub
		this.attackDamage = attackDamage;
		this.efficiency = efficiency;
		this.durability = durability;
		this.HarvestLevel = HarvestLevel;
		this.enchantibility = enchantibility;
		this.repairMaterial = repairMaterial;
	}

	@Override
	public int getMaxUses() {
		// TODO Auto-generated method stub
		return this.durability;
	}

	@Override
	public float getEfficiency() {
		// TODO Auto-generated method stub
		return this.efficiency;
	}

	@Override
	public float getAttackDamage() {
		// TODO Auto-generated method stub
		return this.attackDamage;
	}

	@Override
	public int getHarvestLevel() {
		// TODO Auto-generated method stub
		return this.HarvestLevel;
	}

	@Override
	public int getEnchantability() {
		// TODO Auto-generated method stub
		return this.enchantibility;
	}

	@Override
	public Ingredient getRepairMaterial() {
		// TODO Auto-generated method stub
		return Ingredient.fromItems(this.repairMaterial);
	}
}

 

ItemList.java

 

package redstonewiz.asianweaponry.lists;

import net.minecraft.item.Item;
import net.minecraft.item.SwordItem;

public class ItemList 
{
	public static Item bluesteel_ingot;
	
	public static Item katana_diamond_material;
	
	public static SwordItem diamond_katana;
	public static SwordItem iron_katana;
	public static SwordItem golden_katana;
	public static SwordItem stone_katana;
	public static SwordItem wooden_katana;
}

 

AsianWeaponryMod.java (my main)

 

package redstonewiz.asianweaponry;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import net.minecraft.item.Item;
import net.minecraft.item.ItemGroup;
import net.minecraft.item.SwordItem;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.RegistryEvent;
import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
import redstonewiz.asianweaponry.items.ItemCustomKatana;
import redstonewiz.asianweaponry.lists.ItemList;
import redstonewiz.asianweaponry.lists.ToolMaterialList;

@Mod("asianweaponrymod")
public class AsianWeaponryMod 
{
	
	public static AsianWeaponryMod instance;
	public static final String modid = "asianweaponrymod";
	private static final Logger logger = LogManager.getLogger(modid);
	
	public AsianWeaponryMod() 
	{
		
		instance = this;
		
		FMLJavaModLoadingContext.get().getModEventBus().addListener(this::setup);
		FMLJavaModLoadingContext.get().getModEventBus().addListener(this::clientRegistries);
		// TODO Auto-generated constructor stub
		MinecraftForge.EVENT_BUS.register(this);
	}
	
	private void setup(final FMLCommonSetupEvent event)
	{
		logger.info("Setup method registered");
	}
	
	private void clientRegistries(final FMLCommonSetupEvent event)
	{
		logger.info("clientRegistries method registered");
	}
	
	@Mod.EventBusSubscriber(bus=Mod.EventBusSubscriber.Bus.MOD)
	public static class RegistryEvents
	{
		@SubscribeEvent
		public static void registerItems(final RegistryEvent.Register<Item> event)
		{
			event.getRegistry().registerAll
			(
					ItemList.wooden_katana = new SwordItem(ToolMaterialList.katana_wooden_material, -1.0f, 6.0f, new Item.Properties().group(ItemGroup.MISC)).setRegistryName(location(wooden_katana));

			logger.info("Items registered.");
		}
		
		private static ResourceLocation location(String name) 
		{
			return new ResourceLocation(modid, name);
		}
	}
}

 

1.

25 minutes ago, TheRedstoneWiz said:

"The constructor SwordItem(ToolMaterialList, float, float, Item.Properties) is undefined"

Attackdamage is an int, but you have it as a float. If you're using an IDE it should be able to tell you what each constructor expects. (Actually followed a similar tutorial and had the same mistake),

 

2.

26 minutes ago, TheRedstoneWiz said:

"ItemList.wooden_katana = new SwordItem(ToolMaterialList.katana_wooden_material, -1.0f, 6.0f, new Item.Properties().group(ItemGroup.MISC)).setRegistryName(location(wooden_katana));"

Don't use static initializers for registration, the new preferred method is deferred registration. Check out the docs, but basically you create a deferred registry and use the register method of that object (takes the item name as a string and a supplier (i.e. a function that returns a new instance of that object).

1 hour ago, TheRedstoneWiz said:

At the end of this line, where it says "wooden_katana", it gives the following error:

"wooden_katana cannot be resolved to a variable"

Yes. Because it wooden_katana as a variable name doesn't exist. The method accepts a string, pass it a string.

4 hours ago, TheRedstoneWiz said:

I was following Harry talks tutorial to weapons and tools

It is recommended to not follow such tutorials on YouTube, as their quality is subpar, as well as producing code that does not follow established conventions (including problematic code).

 

4 hours ago, TheRedstoneWiz said:

even though i set the variable in the class "ToolMaterialList".

It is not in the same class as the current one, so you need to reference the class first. This should be basic Java.