Applied-Energistics-2-tilera-Edition/items/misc/ItemCrystalSeed.java

package appeng.items.misc;

import java.util.EnumSet;
import java.util.List;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.Entity;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Items;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.IIcon;
import net.minecraft.world.World;
import appeng.api.AEApi;
import appeng.api.implementations.items.IGrowableCrystal;
import appeng.core.AppEng;
import appeng.core.features.AEFeature;
import appeng.entity.EntityGrowingCrystal;
import appeng.entity.EntityIds;
import appeng.items.AEBaseItem;
import appeng.util.Platform;
import cpw.mods.fml.common.registry.EntityRegistry;

public class ItemCrystalSeed extends AEBaseItem implements IGrowableCrystal
{

	public static final int LEVEL_OFFSET = 200;
	public static final int SINGLE_OFFSET = LEVEL_OFFSET * 3;

	public static final int Certus = 0;
	public static final int Nether = SINGLE_OFFSET;
	public static final int Fluix = SINGLE_OFFSET * 2;
	public static final int END = SINGLE_OFFSET * 3;

	IIcon certus[] = new IIcon[3];
	IIcon fluix[] = new IIcon[3];
	IIcon nether[] = new IIcon[3];

	private int getProgress(ItemStack is)
	{
		if ( is.hasTagCompound() )
		{
			return is.getTagCompound().getInteger( "progress" );
		}
		else
		{
			int progress;
			NBTTagCompound comp = Platform.openNbtData( is );
			comp.setInteger( "progress", progress = is.getItemDamage() );
			is.setItemDamage( (is.getItemDamage() / SINGLE_OFFSET) * SINGLE_OFFSET );
			return progress;
		}
	}

	private void setProgress(ItemStack is, int newDamage)
	{
		NBTTagCompound comp = Platform.openNbtData( is );
		comp.setInteger( "progress", newDamage );
		is.setItemDamage( (int) (is.getItemDamage() / LEVEL_OFFSET) * LEVEL_OFFSET );
	}

	public ItemCrystalSeed() {
		super( ItemCrystalSeed.class );
		setHasSubtypes( true );
		setMaxStackSize( 8 );
		setfeature( EnumSet.of( AEFeature.Core ) );

		EntityRegistry.registerModEntity( EntityGrowingCrystal.class, EntityGrowingCrystal.class.getSimpleName(), EntityIds.get( EntityGrowingCrystal.class ),
				AppEng.instance, 16, 4, true );
	}

	@Override
	public String getUnlocalizedName(ItemStack is)
	{
		int damage = getProgress( is );

		if ( damage < Certus + SINGLE_OFFSET )
			return getUnlocalizedName() + ".Certus";

		if ( damage < Nether + SINGLE_OFFSET )
			return getUnlocalizedName() + ".Nether";

		if ( damage < Fluix + SINGLE_OFFSET )
			return getUnlocalizedName() + ".Fluix";

		return getUnlocalizedName();
	}

	@Override
	public ItemStack triggerGrowth(ItemStack is)
	{
		int newDamage = getProgress( is ) + 1;

		if ( newDamage == Certus + SINGLE_OFFSET )
			return AEApi.instance().materials().materialPureifiedCertusQuartzCrystal.stack( is.stackSize );
		if ( newDamage == Nether + SINGLE_OFFSET )
			return AEApi.instance().materials().materialPureifiedNetherQuartzCrystal.stack( is.stackSize );
		if ( newDamage == Fluix + SINGLE_OFFSET )
			return AEApi.instance().materials().materialPureifiedFluixCrystal.stack( is.stackSize );
		if ( newDamage > END )
			return null;

		setProgress( is, newDamage );
		return is;
	}

	@Override
	public boolean isDamageable()
	{
		return false;
	}

	@Override
	public void addInformation(ItemStack stack, EntityPlayer p, List l, boolean b)
	{
		int progress = getProgress( stack ) % SINGLE_OFFSET;
		l.add( Math.floor( (float) progress / (float) (SINGLE_OFFSET / 100) ) + "%" );
		super.addInformation( stack, p, l, b );
	}

	@Override
	public boolean isDamaged(ItemStack stack)
	{
		return false;
	}

	@Override
	public int getMaxDamage(ItemStack stack)
	{
		return END;
	}

	@Override
	public IIcon getIcon(ItemStack stack, int pass)
	{
		return getIconIndex( stack );
	}

	@Override
	public IIcon getIconIndex(ItemStack stack)
	{
		IIcon list[] = null;

		int damage = getProgress( stack );

		if ( damage < Certus + SINGLE_OFFSET )
			list = certus;

		else if ( damage < Nether + SINGLE_OFFSET )
		{
			damage -= Nether;
			list = nether;
		}

		else if ( damage < Fluix + SINGLE_OFFSET )
		{
			damage -= Fluix;
			list = fluix;
		}

		if ( list == null )
			return Items.diamond.getIconFromDamage( 0 );

		if ( damage < LEVEL_OFFSET )
			return list[0];
		else if ( damage < LEVEL_OFFSET * 2 )
			return list[1];
		else
			return list[2];
	}

	@Override
	public float getMultiplier(Block blk, Material mat)
	{
		return 0.5f;
	}

	@Override
	public void registerIcons(IIconRegister ir)
	{
		String preFix = "appliedenergistics2:ItemCrystalSeed.";

		certus[0] = ir.registerIcon( preFix + "Certus" );
		certus[1] = ir.registerIcon( preFix + "Certus2" );
		certus[2] = ir.registerIcon( preFix + "Certus3" );

		nether[0] = ir.registerIcon( preFix + "Nether" );
		nether[1] = ir.registerIcon( preFix + "Nether2" );
		nether[2] = ir.registerIcon( preFix + "Nether3" );

		fluix[0] = ir.registerIcon( preFix + "Fluix" );
		fluix[1] = ir.registerIcon( preFix + "Fluix2" );
		fluix[2] = ir.registerIcon( preFix + "Fluix3" );
	}

	@Override
	public boolean hasCustomEntity(ItemStack stack)
	{
		return true;
	}

	@Override
	public Entity createEntity(World world, Entity location, ItemStack itemstack)
	{
		EntityGrowingCrystal egc = new EntityGrowingCrystal( world, location.posX, location.posY, location.posZ, itemstack );

		egc.motionX = location.motionX;
		egc.motionY = location.motionY;
		egc.motionZ = location.motionZ;

		if ( location instanceof EntityItem && egc instanceof EntityItem )
			((EntityItem) egc).delayBeforeCanPickup = ((EntityItem) location).delayBeforeCanPickup;

		return egc;
	}

	@Override
	public void getSubItems(Item i, CreativeTabs t, List l)
	{
		// lvl 0
		l.add( newStyle( new ItemStack( this, 1, Certus ) ) );
		l.add( newStyle( new ItemStack( this, 1, Nether ) ) );
		l.add( newStyle( new ItemStack( this, 1, Fluix ) ) );

		// lvl 1
		l.add( newStyle( new ItemStack( this, 1, LEVEL_OFFSET + Certus ) ) );
		l.add( newStyle( new ItemStack( this, 1, LEVEL_OFFSET + Nether ) ) );
		l.add( newStyle( new ItemStack( this, 1, LEVEL_OFFSET + Fluix ) ) );

		// lvl 2
		l.add( newStyle( new ItemStack( this, 1, LEVEL_OFFSET * 2 + Certus ) ) );
		l.add( newStyle( new ItemStack( this, 1, LEVEL_OFFSET * 2 + Nether ) ) );
		l.add( newStyle( new ItemStack( this, 1, LEVEL_OFFSET * 2 + Fluix ) ) );
	}

	private ItemStack newStyle(ItemStack itemStack)
	{
		getProgress( itemStack );
		return itemStack;
	}

}