package appeng.tile.inventory;
import java.util.Iterator;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import appeng.api.storage.IMEInventory;
import appeng.core.AELog;
import appeng.me.storage.MEIInventoryWrapper;
import appeng.util.Platform;
import appeng.util.iterators.InvIterator;
public class AppEngInternalInventory implements IInventory, Iterable<ItemStack>
{
protected IAEAppEngInventory te;
protected final int size;
protected int maxStack;
public boolean enableClientEvents = false;
protected final ItemStack[] inv;
public IMEInventory getMEInventory()
{
return new MEIInventoryWrapper( this, null );
}
public boolean isEmpty()
{
for (int x = 0; x < getSizeInventory(); x++)
if ( getStackInSlot( x ) != null )
return false;
return true;
}
public AppEngInternalInventory(IAEAppEngInventory _te, int s) {
te = _te;
size = s;
maxStack = 64;
inv = new ItemStack[s];
}
protected boolean eventsEnabled()
{
return Platform.isServer() || enableClientEvents;
}
public void setMaxStackSize(int s)
{
maxStack = s;
}
@Override
public ItemStack getStackInSlot(int var1)
{
return inv[var1];
}
@Override
public ItemStack decrStackSize(int slot, int qty)
{
if ( inv[slot] != null )
{
ItemStack split = getStackInSlot( slot );
ItemStack ns = null;
if ( qty >= split.stackSize )
{
ns = inv[slot];
inv[slot] = null;
}
else
ns = split.splitStack( qty );
if ( te != null && eventsEnabled() )
{
te.onChangeInventory( this, slot, InvOperation.decreaseStackSize, ns, null );
}
markDirty();
return ns;
}
return null;
}
@Override
public ItemStack getStackInSlotOnClosing(int var1)
{
return null;
}
@Override
public void setInventorySlotContents(int slot, ItemStack newItemStack)
{
ItemStack oldStack = inv[slot];
inv[slot] = newItemStack;
if ( te != null && eventsEnabled() )
{
ItemStack removed = oldStack;
ItemStack added = newItemStack;
if ( oldStack != null && newItemStack != null && Platform.isSameItem( oldStack, newItemStack ) )
{
if ( oldStack.stackSize > newItemStack.stackSize )
{
removed = removed.copy();
removed.stackSize -= newItemStack.stackSize;
added = null;
}
else if ( oldStack.stackSize < newItemStack.stackSize )
{
added = added.copy();
added.stackSize -= oldStack.stackSize;
removed = null;
}
else
{
removed = added = null;
}
}
te.onChangeInventory( this, slot, InvOperation.setInventorySlotContents, removed, added );
markDirty();
}
}
@Override
public void markDirty()
{
if ( te != null && eventsEnabled() )
{
te.onChangeInventory( this, -1, InvOperation.markDirty, null, null );
}
}
// for guis...
public void markDirty(int slotIndex)
{
if ( te != null && eventsEnabled() )
{
te.onChangeInventory( this, slotIndex, InvOperation.markDirty, null, null );
}
}
@Override
public int getInventoryStackLimit()
{
return maxStack > 64 ? 64 : maxStack;
}
@Override
public boolean isUseableByPlayer(EntityPlayer var1)
{
return true;
}
@Override
public void closeInventory()
{
}
@Override
public void openInventory()
{
}
public void writeToNBT(NBTTagCompound target)
{
for (int x = 0; x < size; x++)
{
try
{
NBTTagCompound c = new NBTTagCompound();
if ( inv[x] != null )
{
inv[x].writeToNBT( c );
}
target.setTag( "#" + x, c );
}
catch (Exception ignored)
{
}
}
}
public void readFromNBT(NBTTagCompound target)
{
for (int x = 0; x < size; x++)
{
try
{
NBTTagCompound c = target.getCompoundTag( "#" + x );
if ( c != null )
inv[x] = ItemStack.loadItemStackFromNBT( c );
}
catch (Exception e)
{
AELog.error( e );
}
}
}
public void writeToNBT(NBTTagCompound data, String name)
{
NBTTagCompound c = new NBTTagCompound();
writeToNBT( c );
data.setTag( name, c );
}
public void readFromNBT(NBTTagCompound data, String name)
{
NBTTagCompound c = data.getCompoundTag( name );
if ( c != null )
readFromNBT( c );
}
@Override
public int getSizeInventory()
{
return size;
}
@Override
public String getInventoryName()
{
return "appeng-internal";
}
@Override
public boolean hasCustomInventoryName()
{
return false;
}
@Override
public boolean isItemValidForSlot(int i, ItemStack itemstack)
{
return true;
}
@Override
public Iterator<ItemStack> iterator()
{
return new InvIterator( this );
}
}