Applied-Energistics-2-tiler.../me/storage/MEMonitorIInventory.java

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package appeng.me.storage;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map.Entry;
import java.util.TreeMap;
import net.minecraft.item.ItemStack;
import appeng.api.AEApi;
import appeng.api.config.AccessRestriction;
import appeng.api.config.Actionable;
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import appeng.api.networking.security.BaseActionSource;
import appeng.api.networking.ticking.TickRateModulation;
import appeng.api.storage.IMEInventory;
import appeng.api.storage.IMEMonitor;
import appeng.api.storage.IMEMonitorHandlerReceiver;
import appeng.api.storage.StorageChannel;
import appeng.api.storage.data.IAEItemStack;
import appeng.api.storage.data.IItemList;
import appeng.util.InventoryAdaptor;
import appeng.util.Platform;
import appeng.util.inv.ItemSlot;
public class MEMonitorIInventory implements IMEInventory<IAEItemStack>, IMEMonitor<IAEItemStack>
{
class CachedItemStack
{
public CachedItemStack(ItemStack is) {
if ( is == null )
{
itemStack = null;
aeStack = null;
}
else
{
itemStack = is.copy();
aeStack = AEApi.instance().storage().createItemStack( is );
}
}
final ItemStack itemStack;
final IAEItemStack aeStack;
};
final InventoryAdaptor adaptor;
final TreeMap<Integer, CachedItemStack> memory;
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final IItemList<IAEItemStack> list = AEApi.instance().storage().createItemList();
final HashMap<IMEMonitorHandlerReceiver<IAEItemStack>, Object> listeners = new HashMap();
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public BaseActionSource mySource;
@Override
public void addListener(IMEMonitorHandlerReceiver<IAEItemStack> l, Object verificationToken)
{
listeners.put( l, verificationToken );
}
@Override
public void removeListener(IMEMonitorHandlerReceiver<IAEItemStack> l)
{
listeners.remove( l );
}
public MEMonitorIInventory(InventoryAdaptor adaptor) {
this.adaptor = adaptor;
memory = new TreeMap();
}
@Override
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public IAEItemStack injectItems(IAEItemStack input, Actionable type, BaseActionSource src)
{
ItemStack out = null;
if ( type == Actionable.SIMULATE )
out = adaptor.simulateAdd( input.getItemStack() );
else
out = adaptor.addItems( input.getItemStack() );
if ( out == null )
return null;
// better then doing construction from scratch :3
IAEItemStack o = input.copy();
o.setStackSize( out.stackSize );
return o;
}
@Override
public AccessRestriction getAccess()
{
return AccessRestriction.READ_WRITE;
}
@Override
public boolean isPrioritized(IAEItemStack input)
{
return false;
}
@Override
public boolean canAccept(IAEItemStack input)
{
return true;
}
@Override
public int getPriority()
{
return 0;
}
@Override
public int getSlot()
{
return 0;
}
@Override
public IItemList<IAEItemStack> getStorageList()
{
return list;
}
@Override
public IItemList<IAEItemStack> getAvailableItems(IItemList out)
{
for (ItemSlot is : adaptor)
out.addStorage( is.getAEItemStack() );
return out;
}
@Override
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public IAEItemStack extractItems(IAEItemStack request, Actionable type, BaseActionSource src)
{
ItemStack out = null;
if ( type == Actionable.SIMULATE )
out = adaptor.simulateRemove( (int) request.getStackSize(), request.getItemStack(), null );
else
out = adaptor.removeItems( (int) request.getStackSize(), request.getItemStack(), null );
if ( out == null )
return null;
// better then doing construction from scratch :3
IAEItemStack o = request.copy();
o.setStackSize( out.stackSize );
return o;
}
public TickRateModulation onTick()
{
boolean changed = false;
list.resetStatus();
for (ItemSlot is : adaptor)
{
CachedItemStack old = memory.get( is.slot );
ItemStack newIS = is == null ? null : is.getItemStack();
ItemStack oldIS = old == null ? null : old.itemStack;
if ( isDiffrent( newIS, oldIS ) )
{
CachedItemStack cis = new CachedItemStack( is.getItemStack() );
memory.put( is.slot, cis );
if ( old != null && old.aeStack != null )
{
old.aeStack.setStackSize( -old.aeStack.getStackSize() );
postDiffrence( old.aeStack );
}
if ( cis != null && cis.aeStack != null )
{
postDiffrence( cis.aeStack );
list.add( cis.aeStack );
}
changed = true;
}
else if ( is != null )
{
int newSize = (newIS == null ? 0 : newIS.stackSize);
int diff = newSize - (oldIS == null ? 0 : oldIS.stackSize);
IAEItemStack stack = (old == null || old.aeStack == null ? AEApi.instance().storage().createItemStack( newIS ) : old.aeStack.copy());
if ( stack != null )
{
stack.setStackSize( newSize );
list.add( stack );
}
if ( diff != 0 && stack != null )
{
CachedItemStack cis = new CachedItemStack( is.getItemStack() );
memory.put( is.slot, cis );
IAEItemStack a = stack.copy();
a.setStackSize( diff );
postDiffrence( a );
changed = true;
}
}
}
return changed ? TickRateModulation.URGENT : TickRateModulation.SLOWER;
}
private boolean isDiffrent(ItemStack a, ItemStack b)
{
if ( a == b && b == null )
return false;
if ( (a == null && b != null) || (a != null && b == null) )
return true;
return !Platform.isSameItemPrecise( a, b );
}
private void postDiffrence(IAEItemStack a)
{
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// AELog.info( a.getItemStack().getUnlocalizedName() + " @ " + a.getStackSize() );
if ( a != null )
{
Iterator<Entry<IMEMonitorHandlerReceiver<IAEItemStack>, Object>> i = listeners.entrySet().iterator();
while (i.hasNext())
{
Entry<IMEMonitorHandlerReceiver<IAEItemStack>, Object> l = i.next();
IMEMonitorHandlerReceiver<IAEItemStack> key = l.getKey();
if ( key.isValid( l.getValue() ) )
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key.postChange( this, a, mySource );
else
i.remove();
}
}
}
@Override
public StorageChannel getChannel()
{
return StorageChannel.ITEMS;
}
}