ItemFirework.java

package net.minecraft.item;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import java.util.ArrayList;
import java.util.List;
import net.minecraft.entity.item.EntityFireworkRocket;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.util.StatCollector;
import net.minecraft.world.World;

public class ItemFirework extends Item
{
    public ItemFirework(int par1)
    {
        super(par1);
    }

    /**
     * Callback for item usage. If the item does something special on right clicking, he will have one of those. Return
     * True if something happen and false if it don't. This is for ITEMS, not BLOCKS
     */
    public boolean onItemUse(ItemStack par1ItemStack, EntityPlayer par2EntityPlayer, World par3World, int par4, int par5, int par6, int par7, float par8, float par9, float par10)
    {
        if (!par3World.isRemote)
        {
            EntityFireworkRocket var11 = new EntityFireworkRocket(par3World, (double)((float)par4 + par8), (double)((float)par5 + par9), (double)((float)par6 + par10), par1ItemStack);
            par3World.spawnEntityInWorld(var11);

            if (!par2EntityPlayer.capabilities.isCreativeMode)
            {
                --par1ItemStack.stackSize;
            }

            return true;
        }
        else
        {
            return false;
        }
    }

    @SideOnly(Side.CLIENT)

    /**
     * allows items to add custom lines of information to the mouseover description
     */
    public void addInformation(ItemStack par1ItemStack, EntityPlayer par2EntityPlayer, List par3List, boolean par4)
    {
        if (par1ItemStack.hasTagCompound())
        {
            NBTTagCompound var5 = par1ItemStack.getTagCompound().getCompoundTag("Fireworks");

            if (var5 != null)
            {
                if (var5.hasKey("Flight"))
                {
                    par3List.add(StatCollector.translateToLocal("item.fireworks.flight") + " " + var5.getByte("Flight"));
                }

                NBTTagList var6 = var5.getTagList("Explosions");

                if (var6 != null && var6.tagCount() > 0)
                {
                    for (int var7 = 0; var7 < var6.tagCount(); ++var7)
                    {
                        NBTTagCompound var8 = (NBTTagCompound)var6.tagAt(var7);
                        ArrayList var9 = new ArrayList();
                        ItemFireworkCharge.func_92107_a(var8, var9);

                        if (var9.size() > 0)
                        {
                            for (int var10 = 1; var10 < var9.size(); ++var10)
                            {
                                var9.set(var10, "  " + (String)var9.get(var10));
                            }

                            par3List.addAll(var9);
                        }
                    }
                }
            }
        }
    }
}