I'm making a multiple item, and i managed to set different icons for it, but i'm stuck at names... Here's the code.

package net.railowar.src;

import java.util.List;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.util.Icon;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

public class ItemWideRails extends Item
{
    public static final String[] wNames = new String[] {"Straight", "Right", "Left", "S", "Z"};
    public static final String[] wTex = new String[] {"rails", "rails_r", "rails_l", "rails_s", "rails_z"};
    @SideOnly(Side.CLIENT)
    private Icon[] ico;
    
    public ItemWideRails(int par1)
    {
        super(par1);
        this.setHasSubtypes(true);
        this.setMaxDamage(0);
        this.maxStackSize = 1;
        setCreativeTab(CreativeTabs.tabTransport);
        setUnlocalizedName("Rails");
    }
    
    @SideOnly(Side.CLIENT)
    public Icon getIconFromDamage(int par1)
    {
        int j = MathHelper.clamp_int(par1, 0, 4);
        return this.ico[j];
    }

    public String getUnlocalizedName(ItemStack par1ItemStack)
    {
        int i = MathHelper.clamp_int(par1ItemStack.getItemDamage(), 0, 4);
        return super.getUnlocalizedName() + "." + wNames[i];
    }

@SideOnly(Side.CLIENT)
public void getSubItems(int par1, CreativeTabs par2CreativeTabs, List par3List)
    {
        for (int j = 0; j < 5; ++j)
        {
            par3List.add(new ItemStack(par1, 1, j));
        }
    }

    @SideOnly(Side.CLIENT)
    public void updateIcons(IconRegister par1IconRegister)
    {
        this.ico = new Icon[wTex.length];
        for (int i = 0; i < wTex.length; ++i)
        {
            this.ico[i] = par1IconRegister.registerIcon("RoW:" + wTex[i]);
        }
    }
}

Please, help.

So, no ideas?

In your item constructor, put:

 

LanguageRegistry.addName(this, "Your Item Name Here");

 

EDIT: Ah, wait, I missed a word - let me get back to you on this.

 

EDIT 2: Check this out - it looks like you need to pass in the names one at a time while also passing in an ItemStack with the desired damage value:

http://www.minecraftforge.net/wiki/Metadata_Based_Subblocks#Block_and_Language_Registration

Thanks, that helped.