PrototypeTrousers
100 lines
2.5 KiB
Java
100 lines
2.5 KiB
Java
/*
|
|
* This file is part of Applied Energistics 2.
|
|
* Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
|
|
*
|
|
* Applied Energistics 2 is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Applied Energistics 2 is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
|
|
*/
|
|
|
|
package appeng.util.item;
|
|
|
|
import java.util.Objects;
|
|
|
|
import com.google.common.base.Preconditions;
|
|
|
|
import net.minecraft.item.ItemStack;
|
|
|
|
|
|
final class AESharedItemStack
|
|
{
|
|
|
|
private final ItemStack itemStack;
|
|
private final int itemDamage;
|
|
private final int hashCode;
|
|
|
|
public AESharedItemStack( final ItemStack itemStack )
|
|
{
|
|
this( itemStack, itemStack.getItemDamage() );
|
|
}
|
|
|
|
/**
|
|
* A constructor to explicitly set the damage value and not fetch it from the {@link ItemStack}
|
|
*
|
|
* @param itemStack The {@link ItemStack} to filter
|
|
* @param damage The damage of the item
|
|
*/
|
|
private AESharedItemStack( ItemStack itemStack, int damage )
|
|
{
|
|
this.itemStack = itemStack;
|
|
this.itemDamage = damage;
|
|
|
|
// Ensure this is always called last.
|
|
this.hashCode = this.makeHashCode();
|
|
}
|
|
|
|
ItemStack getDefinition()
|
|
{
|
|
return this.itemStack;
|
|
}
|
|
|
|
int getItemDamage()
|
|
{
|
|
return this.itemDamage;
|
|
}
|
|
|
|
@Override
|
|
public int hashCode()
|
|
{
|
|
return this.hashCode;
|
|
}
|
|
|
|
@Override
|
|
public boolean equals( final Object obj )
|
|
{
|
|
if( this == obj )
|
|
{
|
|
return true;
|
|
}
|
|
if( !( obj instanceof AESharedItemStack ) )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
final AESharedItemStack other = (AESharedItemStack) obj;
|
|
Preconditions.checkState( this.itemStack.getCount() == 1, "ItemStack#getCount() has to be 1" );
|
|
Preconditions.checkArgument( other.getDefinition().getCount() == 1, "ItemStack#getCount() has to be 1" );
|
|
|
|
if( this.itemStack == other.itemStack )
|
|
{
|
|
return true;
|
|
}
|
|
return ItemStack.areItemStacksEqual( this.itemStack, other.itemStack );
|
|
}
|
|
|
|
private int makeHashCode()
|
|
{
|
|
return Objects.hash( this.itemStack.getItem(), this.itemDamage, this.itemStack.hasTagCompound() ? this.itemStack.getTagCompound() : 0 );
|
|
}
|
|
|
|
}
|