Begun work on the crafting memory / tree

crafting/CraftingJob.java

@@ -0,0 +1,80 @@
+package appeng.crafting;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Iterator;
+
+import net.minecraft.nbt.NBTTagCompound;
+import appeng.api.storage.data.IAEItemStack;
+import appeng.api.storage.data.IItemList;
+
+import com.google.common.collect.Multimap;
+
+public class CraftingJob implements ICraftingParent
+{
+
+	IAEItemStack output;
+
+	IItemList<IAEItemStack> storage;
+
+	HashSet<IAEItemStack> prophecies;
+
+	Multimap<IAEItemStack, CraftingTask> bottom;
+	CraftingTask top;
+
+	public Collection<CraftingTask> getBottom()
+	{
+		return bottom.values();
+	}
+
+	public IAEItemStack addProgress(IAEItemStack progress)
+	{
+		Collection<CraftingTask> task = bottom.get( progress );
+
+		if ( task == null )
+			return progress;
+
+		Iterator<CraftingTask> i = task.iterator();
+
+		while (i.hasNext())
+		{
+			// adding to the first item..
+			progress = i.next().addProgress( progress );
+
+			// if nothing remains return
+			if ( progress == null )
+				return null;
+
+			// if something remains continue..
+			i = task.iterator();
+		}
+
+		return null;
+	}
+
+	@Override
+	public void writeToNBT(NBTTagCompound out)
+	{
+
+	}
+
+	@Override
+	public void removeChild(CraftingTask craftingTask)
+	{
+		// TODO Auto-generated method stub
+	}
+
+	public ICraftingHost getHost()
+	{
+		// TODO Auto-generated method stub
+		return null;
+	}
+
+	@Override
+	public Collection<? extends ICraftingParent> getSubJobs()
+	{
+		return Collections.singleton( top );
+	}
+
+}