Highly incomplete code. First work on porting to 1.12. Still need to rework a LOT of things.

src/main/java/appeng/recipes/game/ShapedRecipe.java

@@ -27,6 +27,7 @@ import net.minecraft.inventory.InventoryCrafting;
 import net.minecraft.item.ItemStack;
 import net.minecraft.item.crafting.IRecipe;
 import net.minecraft.util.NonNullList;
+import net.minecraft.util.ResourceLocation;
 import net.minecraft.world.World;
 import net.minecraftforge.common.ForgeHooks;
 import net.minecraftforge.oredict.OreDictionary;
@@ -35,6 +36,7 @@ import appeng.api.exceptions.MissingIngredientError;
 import appeng.api.exceptions.RegistrationError;
 import appeng.api.recipes.IIngredient;
 
+import javax.annotation.Nullable;
 
 public class ShapedRecipe implements IRecipe, IRecipeBakeable
 {
@@ -176,9 +178,8 @@ public class ShapedRecipe implements IRecipe, IRecipeBakeable
 	}
 
 	@Override
-	public int getRecipeSize()
-	{
-		return this.input.length;
+	public boolean canFit(int i, int i1) {
+		return false;
 	}
 
 	@Override
@@ -302,7 +303,7 @@ public class ShapedRecipe implements IRecipe, IRecipeBakeable
 		return this.height;
 	}
 
-	public Object[] getIngredients()
+	public Object[] getIIngredients()
 	{
 		return this.input;
 	}
@@ -333,4 +334,41 @@ public class ShapedRecipe implements IRecipe, IRecipeBakeable
 		return ForgeHooks.defaultRecipeGetRemainingItems( inv );
 	}
 
+	/**
+	 * Sets a unique name for this Item. This should be used for uniquely identify the instance of the Item.
+	 * This is the valid replacement for the atrocious 'getUnlocalizedName().substring(6)' stuff that everyone does.
+	 * Unlocalized names have NOTHING to do with unique identifiers. As demonstrated by vanilla blocks and items.
+	 * <p>
+	 * The supplied name will be prefixed with the currently active mod's modId.
+	 * If the supplied name already has a prefix that is different, it will be used and a warning will be logged.
+	 * <p>
+	 * If a name already exists, or this Item is already registered in a registry, then an IllegalStateException is thrown.
+	 * <p>
+	 * Returns 'this' to allow for chaining.
+	 *
+	 * @param name Unique registry name
+	 * @return This instance
+	 */
+	@Override
+	public IRecipe setRegistryName(ResourceLocation name) {
+		return null;
+	}
+
+	/**
+	 * A unique identifier for this entry, if this entry is registered already it will return it's official registry name.
+	 * Otherwise it will return the name set in setRegistryName().
+	 * If neither are valid null is returned.
+	 *
+	 * @return Unique identifier or null.
+	 */
+	@Nullable
+	@Override
+	public ResourceLocation getRegistryName() {
+		return null;
+	}
+
+	@Override
+	public Class<IRecipe> getRegistryType() {
+		return null;
+	}
 }