Relocate Source to proper directory.

src/main/java/appeng/recipes/GroupIngredient.java

@@ -0,0 +1,121 @@
+package appeng.recipes;
+
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
+
+import net.minecraft.item.ItemStack;
+import net.minecraftforge.oredict.OreDictionary;
+import appeng.api.exceptions.MissingIngredientError;
+import appeng.api.exceptions.RecipeError;
+import appeng.api.exceptions.RegistrationError;
+import appeng.api.recipes.IIngredient;
+
+public class GroupIngredient implements IIngredient
+{
+
+	int qty = 0;
+	final String name;
+	final List<IIngredient> ingredients;
+	ItemStack[] baked;
+
+	boolean isInside = false;
+
+	public GroupIngredient(String myName, List<IIngredient> ingredients) throws RecipeError {
+		name = myName;
+
+		for (IIngredient I : ingredients)
+			if ( I.isAir() )
+				throw new RecipeError( "Cannot include air in a group." );
+
+		this.ingredients = ingredients;
+	}
+
+	public IIngredient copy(int qty) throws RecipeError
+	{
+		GroupIngredient gi = new GroupIngredient( name, ingredients );
+		gi.qty = qty;
+		return gi;
+	}
+
+	public int getDamageValue()
+	{
+		return OreDictionary.WILDCARD_VALUE;
+	}
+
+	@Override
+	public String getItemName()
+	{
+		return name;
+	}
+
+	@Override
+	public ItemStack getItemStack() throws RegistrationError, MissingIngredientError
+	{
+		throw new RegistrationError( "Cannot pass group of items to a recipe which desires a single recipe item." );
+	}
+
+	@Override
+	public ItemStack[] getItemStackSet() throws RegistrationError, MissingIngredientError
+	{
+		if ( baked != null )
+			return baked;
+
+		if ( isInside )
+			return new ItemStack[0];
+
+		List<ItemStack> out = new LinkedList();
+		isInside = true;
+		try
+		{
+			for (IIngredient i : ingredients)
+			{
+				try
+				{
+					out.addAll( Arrays.asList( i.getItemStackSet() ) );
+				}
+				catch (MissingIngredientError mir)
+				{
+					// oh well this is a group!
+				}
+			}
+		}
+		finally
+		{
+			isInside = false;
+		}
+
+		if ( out.size() == 0 )
+			throw new MissingIngredientError( toString() + " - group could not be resolved to any items." );
+
+		for (ItemStack is : out)
+			is.stackSize = qty;
+
+		return out.toArray( new ItemStack[out.size()] );
+	}
+
+	public String getNameSpace()
+	{
+		return "";
+	}
+
+	@Override
+	public int getQty()
+	{
+		return 0;
+	}
+
+	@Override
+	public boolean isAir()
+	{
+		return false;
+	}
+
+	@Override
+	public void bake() throws RegistrationError, MissingIngredientError
+	{
+		baked = null;
+		baked = getItemStackSet();
+	}
+
+}