ItemMobCrystal.java

package fox.spiteful.forbidden.items;

import java.util.List;

import fox.spiteful.forbidden.Forbidden;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.IIcon;
import net.minecraft.util.StatCollector;
import thaumcraft.api.aspects.Aspect;

import fox.spiteful.forbidden.Config;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

public class ItemMobCrystal extends Item {

    IIcon[] icons;

    public ItemMobCrystal() {
        this.setMaxStackSize(1);
        // this.setHasSubtypes(true);
        this.setMaxDamage(0);
        this.setCreativeTab(Forbidden.crysTab);
    }

    @SideOnly(Side.CLIENT)
    @Override
    public void addInformation(ItemStack stack, EntityPlayer player, List list, boolean z) {
        if (stack.hasTagCompound()) {
            NBTTagCompound nbttagcompound = stack.getTagCompound();
            if(nbttagcompound.hasKey("mob")) {
                String string = nbttagcompound.getString("mob");

                if (string != null) {
                    Aspect mobAspect = Config.spawnerMobs.get(string);
                    if (mobAspect != null)
                        list.add(mobAspect.getName());
                }
            }
        }
    }

    @SideOnly(Side.CLIENT)
    @Override
    public void registerIcons(IIconRegister ir) {
        icons = new IIcon[2];

        icons[0] = ir.registerIcon("forbidden:emptycrystal");
        icons[1] = ir.registerIcon("forbidden:mobcrystal");
    }

    @SideOnly(Side.CLIENT)
    @Override
    public IIcon getIcon(ItemStack stack, int renderPass, EntityPlayer player, ItemStack usingItem, int useRemaining) {
        if (stack.hasTagCompound()) {
            NBTTagCompound nbttagcompound = stack.getTagCompound();
            String string = nbttagcompound.getString("mob");

            if (string != null)
                return icons[1];
        }

        return icons[0];
    }

    @SideOnly(Side.CLIENT)
    @Override
    public IIcon getIconIndex(ItemStack stack) {
        if (stack.hasTagCompound()) {
            NBTTagCompound nbttagcompound = stack.getTagCompound();
            if (nbttagcompound.hasKey("mob"))
                return icons[1];
        }

        return icons[0];
    }

    @SideOnly(Side.CLIENT)
    @Override
    public void getSubItems(Item item, CreativeTabs tab, List list) {
        list.add(new ItemStack(item, 1, 0));

        for (String mob : Config.spawnerMobs.keySet()) {
            ItemStack crystal = new ItemStack(item, 1, 0);
            crystal.setTagCompound(new NBTTagCompound());
            crystal.stackTagCompound.setString("mob", mob);
            list.add(crystal);
        }
    }

    @Override
    public String getItemStackDisplayName(ItemStack stack) {
        if (stack.hasTagCompound()) {
            NBTTagCompound nbttagcompound = stack.getTagCompound();
            if(nbttagcompound.hasKey("mob")) {
                String string = nbttagcompound.getString("mob");

                if (string != null)
                    return ("" + StatCollector.translateToLocal("item.MobCrystal.name").replace("%s", StatCollector.translateToLocal("entity." + string + ".name"))).trim();
            }
        }

        return ("" + StatCollector.translateToLocal("item.MobCrystalEmpty.name")).trim();
    }
}