Relocate Source to proper directory.

src/main/java/appeng/util/inv/WrapperInvSlot.java

@@ -0,0 +1,117 @@
+package appeng.util.inv;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.inventory.IInventory;
+import net.minecraft.item.ItemStack;
+
+public class WrapperInvSlot
+{
+
+	class InternalInterfaceWrapper implements IInventory
+	{
+
+		private final IInventory inv;
+		private final int slot;
+
+		public InternalInterfaceWrapper(IInventory target, int slot) {
+			this.inv = target;
+			this.slot = slot;
+		}
+
+		@Override
+		public int getSizeInventory()
+		{
+			return 1;
+		}
+
+		@Override
+		public ItemStack getStackInSlot(int i)
+		{
+			return inv.getStackInSlot( slot );
+		}
+
+		@Override
+		public ItemStack decrStackSize(int i, int num)
+		{
+			return inv.decrStackSize( slot, num );
+		}
+
+		@Override
+		public ItemStack getStackInSlotOnClosing(int i)
+		{
+			return inv.getStackInSlotOnClosing( slot );
+		}
+
+		@Override
+		public void setInventorySlotContents(int i, ItemStack itemstack)
+		{
+			inv.setInventorySlotContents( slot, itemstack );
+		}
+
+		@Override
+		public String getInventoryName()
+		{
+			return inv.getInventoryName();
+		}
+
+		@Override
+		public boolean hasCustomInventoryName()
+		{
+			return inv.hasCustomInventoryName();
+		}
+
+		@Override
+		public int getInventoryStackLimit()
+		{
+			return inv.getInventoryStackLimit();
+		}
+
+		@Override
+		public void markDirty()
+		{
+			inv.markDirty();
+		}
+
+		@Override
+		public boolean isUseableByPlayer(EntityPlayer entityplayer)
+		{
+			return inv.isUseableByPlayer( entityplayer );
+		}
+
+		@Override
+		public void openInventory()
+		{
+			inv.openInventory();
+		}
+
+		@Override
+		public void closeInventory()
+		{
+			inv.closeInventory();
+		}
+
+		@Override
+		public boolean isItemValidForSlot(int i, ItemStack itemstack)
+		{
+			return isItemValid( itemstack ) && inv.isItemValidForSlot( slot, itemstack );
+		}
+	};
+
+	private IInventory inv;
+
+	public WrapperInvSlot(IInventory inv) {
+		this.inv = inv;
+	}
+
+	public IInventory getWrapper(int slot)
+	{
+		InternalInterfaceWrapper wrapper = new InternalInterfaceWrapper( inv, slot );
+		return wrapper;
+	}
+
+	protected boolean isItemValid(ItemStack itemstack)
+	{
+		return true;
+	}
+
+}