More recipe Serializer changes

- added Interface IExtendedProcessingRecipe supporting requiredHeat, fluid inputs and fluid outputs
- set Mixing recipes to use the extended serializer in AllRecipeTypes
- removed constructor parameters specifying fluid usage in recipes that do not support fluids (and changed the ConversionRecipe JEI support class back)
- cleaned up annotations, ordered AllRecipeType enum values and imports, reformatted recipe code

src/main/java/com/simibubi/create/AllRecipeTypes.java

@@ -1,7 +1,5 @@
 package com.simibubi.create;
 
-import java.util.function.Supplier;
-
 import com.simibubi.create.compat.jei.ConversionRecipe;
 import com.simibubi.create.content.contraptions.components.crafter.MechanicalCraftingRecipe;
 import com.simibubi.create.content.contraptions.components.crusher.CrushingRecipe;
@@ -12,11 +10,11 @@ import com.simibubi.create.content.contraptions.components.press.PressingRecipe;
 import com.simibubi.create.content.contraptions.components.saw.CuttingRecipe;
 import com.simibubi.create.content.contraptions.processing.ProcessingRecipe;
 import com.simibubi.create.content.contraptions.processing.ProcessingRecipeSerializer;
+import com.simibubi.create.content.contraptions.processing.ProcessingRecipeSerializer.IExtendedRecipeFactory;
 import com.simibubi.create.content.contraptions.processing.ProcessingRecipeSerializer.IRecipeFactory;
 import com.simibubi.create.content.curiosities.tools.SandPaperPolishingRecipe;
 import com.simibubi.create.content.curiosities.zapper.blockzapper.BlockzapperUpgradeRecipe;
 import com.simibubi.create.foundation.utility.Lang;
-
 import net.minecraft.inventory.IInventory;
 import net.minecraft.item.crafting.IRecipe;
 import net.minecraft.item.crafting.IRecipeSerializer;
@@ -26,18 +24,20 @@ import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.registry.Registry;
 import net.minecraftforge.event.RegistryEvent;
 
+import java.util.function.Supplier;
+
 public enum AllRecipeTypes {
 
 	BLOCKZAPPER_UPGRADE(BlockzapperUpgradeRecipe.Serializer::new, IRecipeType.CRAFTING),
-	MECHANICAL_CRAFTING(MechanicalCraftingRecipe.Serializer::new),
-	CRUSHING(processingSerializer(CrushingRecipe::new)),
-	MILLING(processingSerializer(MillingRecipe::new)),
-	SPLASHING(processingSerializer(SplashingRecipe::new)),
-	PRESSING(processingSerializer(PressingRecipe::new)),
-	CUTTING(processingSerializer(CuttingRecipe::new)),
-	MIXING(processingSerializer(MixingRecipe::new)),
-	SANDPAPER_POLISHING(processingSerializer(SandPaperPolishingRecipe::new)),
 	CONVERSION(processingSerializer(ConversionRecipe::new)),
+	CRUSHING(processingSerializer(CrushingRecipe::new)),
+	CUTTING(processingSerializer(CuttingRecipe::new)),
+	MECHANICAL_CRAFTING(MechanicalCraftingRecipe.Serializer::new),
+	MILLING(processingSerializer(MillingRecipe::new)),
+	MIXING(extendedProcessingSerializer(MixingRecipe::new)),
+	PRESSING(processingSerializer(PressingRecipe::new)),
+	SANDPAPER_POLISHING(processingSerializer(SandPaperPolishingRecipe::new)),
+	SPLASHING(processingSerializer(SplashingRecipe::new)),
 
 	;
 
@@ -45,11 +45,6 @@ public enum AllRecipeTypes {
 	public Supplier<IRecipeSerializer<?>> supplier;
 	public IRecipeType<? extends IRecipe<? extends IInventory>> type;
 
-	@SuppressWarnings("unchecked")
-	public <T extends IRecipeType<?>> T getType() {
-		return (T) type;
-	}
-
 	AllRecipeTypes(Supplier<IRecipeSerializer<?>> supplier) {
 		this(supplier, null);
 	}
@@ -87,4 +82,13 @@ public enum AllRecipeTypes {
 		return () -> new ProcessingRecipeSerializer<>(factory);
 	}
 
+	private static Supplier<IRecipeSerializer<?>> extendedProcessingSerializer(
+		IExtendedRecipeFactory<? extends ProcessingRecipe<?>> factory) {
+		return () -> new ProcessingRecipeSerializer<>(factory);
+	}
+
+	@SuppressWarnings("unchecked")
+	public <T extends IRecipeType<?>> T getType() {
+		return (T) type;
+	}
 }

src/main/java/com/simibubi/create/compat/jei/ConversionRecipe.java

@@ -3,7 +3,6 @@ package com.simibubi.create.compat.jei;
 import java.util.Collections;
 import java.util.List;
 
-import javax.annotation.Nullable;
 import javax.annotation.ParametersAreNonnullByDefault;
 
 import com.simibubi.create.AllRecipeTypes;
@@ -16,7 +15,6 @@ import net.minecraft.item.ItemStack;
 import net.minecraft.item.crafting.Ingredient;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.world.World;
-import net.minecraftforge.fluids.FluidStack;
 import net.minecraftforge.items.wrapper.RecipeWrapper;
 
 /**
@@ -29,8 +27,7 @@ import net.minecraftforge.items.wrapper.RecipeWrapper;
 public class ConversionRecipe extends ProcessingRecipe<RecipeWrapper> {
 
 	public ConversionRecipe(ResourceLocation id, String group, List<ProcessingIngredient> ingredients,
-		List<ProcessingOutput> results, int processingDuration, @Nullable List<FluidStack> fluidIngredients,
+		List<ProcessingOutput> results, int processingDuration) {
-		@Nullable List<FluidStack> fluidResults) {
 		super(AllRecipeTypes.CONVERSION, id, group, ingredients, results, processingDuration);
 	}
 
@@ -45,7 +42,7 @@ public class ConversionRecipe extends ProcessingRecipe<RecipeWrapper> {
 
 	public ConversionRecipe(ResourceLocation id, List<ProcessingIngredient> ingredients,
 		List<ProcessingOutput> results) {
-		this(id, "conversions", ingredients, results, -1, null, null);
+		this(id, "conversions", ingredients, results, -1);
 	}
 
 	@Override

src/main/java/com/simibubi/create/content/contraptions/components/crusher/CrushingRecipe.java

@@ -1,21 +1,20 @@
 package com.simibubi.create.content.contraptions.components.crusher;
 
-import java.util.List;
-
 import com.simibubi.create.AllRecipeTypes;
 import com.simibubi.create.content.contraptions.processing.ProcessingIngredient;
 import com.simibubi.create.content.contraptions.processing.ProcessingOutput;
-
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.world.World;
-import net.minecraftforge.fluids.FluidStack;
 import net.minecraftforge.items.wrapper.RecipeWrapper;
 
+import javax.annotation.ParametersAreNonnullByDefault;
+import java.util.List;
+
+@ParametersAreNonnullByDefault
 public class CrushingRecipe extends AbstractCrushingRecipe {
 
 	public CrushingRecipe(ResourceLocation id, String group, List<ProcessingIngredient> ingredients,
-		List<ProcessingOutput> results, int processingDuration, List<FluidStack> fluidIngredients,
+		List<ProcessingOutput> results, int processingDuration) {
-		List<FluidStack> fluidResults) {
 		super(AllRecipeTypes.CRUSHING, id, group, ingredients, results, processingDuration);
 	}
 

src/main/java/com/simibubi/create/content/contraptions/components/fan/SplashingRecipe.java

@@ -1,26 +1,22 @@
 package com.simibubi.create.content.contraptions.components.fan;
 
-import java.util.List;
-
 import com.simibubi.create.AllRecipeTypes;
 import com.simibubi.create.content.contraptions.processing.ProcessingIngredient;
 import com.simibubi.create.content.contraptions.processing.ProcessingOutput;
 import com.simibubi.create.content.contraptions.processing.ProcessingRecipe;
 import com.simibubi.create.content.logistics.InWorldProcessing;
 import com.simibubi.create.content.logistics.InWorldProcessing.SplashingInv;
-
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.world.World;
-import net.minecraftforge.fluids.FluidStack;
 
 import javax.annotation.ParametersAreNonnullByDefault;
+import java.util.List;
 
 @ParametersAreNonnullByDefault
 public class SplashingRecipe extends ProcessingRecipe<InWorldProcessing.SplashingInv> {
 
 	public SplashingRecipe(ResourceLocation id, String group, List<ProcessingIngredient> ingredients,
-		List<ProcessingOutput> results, int processingDuration, List<FluidStack> fluidIngredients,
+		List<ProcessingOutput> results, int processingDuration) {
-		List<FluidStack> fluidResults) {
 		super(AllRecipeTypes.SPLASHING, id, group, ingredients, results, processingDuration);
 	}
 

src/main/java/com/simibubi/create/content/contraptions/components/millstone/MillingRecipe.java

@@ -1,25 +1,21 @@
 package com.simibubi.create.content.contraptions.components.millstone;
 
-import java.util.List;
-
 import com.simibubi.create.AllRecipeTypes;
 import com.simibubi.create.content.contraptions.components.crusher.AbstractCrushingRecipe;
 import com.simibubi.create.content.contraptions.processing.ProcessingIngredient;
 import com.simibubi.create.content.contraptions.processing.ProcessingOutput;
-
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.world.World;
-import net.minecraftforge.fluids.FluidStack;
 import net.minecraftforge.items.wrapper.RecipeWrapper;
 
 import javax.annotation.ParametersAreNonnullByDefault;
+import java.util.List;
 
 @ParametersAreNonnullByDefault
 public class MillingRecipe extends AbstractCrushingRecipe {
 
 	public MillingRecipe(ResourceLocation id, String group, List<ProcessingIngredient> ingredients,
-		List<ProcessingOutput> results, int processingDuration, List<FluidStack> fluidIngredients,
+		List<ProcessingOutput> results, int processingDuration) {
-		List<FluidStack> fluidResults) {
 		super(AllRecipeTypes.MILLING, id, group, ingredients, results, processingDuration);
 	}
 
@@ -35,5 +31,4 @@ public class MillingRecipe extends AbstractCrushingRecipe {
 	protected int getMaxOutputCount() {
 		return 4;
 	}
-
 }

src/main/java/com/simibubi/create/content/contraptions/components/mixer/MixingRecipe.java

@@ -1,20 +1,11 @@
 package com.simibubi.create.content.contraptions.components.mixer;
 
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.LinkedList;
-import java.util.List;
-
-import javax.annotation.Nonnull;
-
 import com.simibubi.create.AllRecipeTypes;
 import com.simibubi.create.content.contraptions.processing.BasinTileEntity.BasinInputInventory;
 import com.simibubi.create.content.contraptions.processing.ProcessingIngredient;
 import com.simibubi.create.content.contraptions.processing.ProcessingOutput;
 import com.simibubi.create.content.contraptions.processing.ProcessingRecipe;
-
 import net.minecraft.item.ItemStack;
 import net.minecraft.item.crafting.IRecipe;
 import net.minecraft.item.crafting.Ingredient;
@@ -23,18 +14,21 @@ import net.minecraft.util.ResourceLocation;
 import net.minecraft.world.World;
 import net.minecraftforge.fluids.FluidStack;
 
+import javax.annotation.Nonnull;
+import java.util.*;
+
 public class MixingRecipe extends ProcessingRecipe<BasinInputInventory> {
 
     public MixingRecipe(ResourceLocation id, String group, List<ProcessingIngredient> ingredients,
-		List<ProcessingOutput> results, int processingDuration) {
+                        List<ProcessingOutput> results, int processingDuration, List<FluidStack> fluidIngredients,
-		super(AllRecipeTypes.MIXING, id, group, ingredients, results, processingDuration);
+                        List<FluidStack> fluidResults, int requiredHeat) {
+        super(AllRecipeTypes.MIXING, id, group, ingredients, results, processingDuration, fluidIngredients,
+                fluidResults, requiredHeat);
     }
 
-	public MixingRecipe(ResourceLocation id, String group, List<ProcessingIngredient> ingredients,
+    public static MixingRecipe of(IRecipe<?> recipe) {
-		List<ProcessingOutput> results, int processingDuration, List<FluidStack> fluidIngredients,
+        return new MixingRecipe(recipe.getId(), recipe.getGroup(), ProcessingIngredient.list(recipe.getIngredients()),
-		List<FluidStack> fluidResults) {
+                Collections.singletonList(new ProcessingOutput(recipe.getRecipeOutput(), 1)), -1, null, null, 0);
-		super(AllRecipeTypes.MIXING, id, group, ingredients, results, processingDuration, fluidIngredients,
-			fluidResults);
     }
 
     @Override
@@ -73,7 +67,8 @@ public class MixingRecipe extends ProcessingRecipe<BasinInputInventory> {
         // sort by leniency
         List<Ingredient> sortedIngredients = new LinkedList<>(ingredients);
         sortedIngredients.sort(Comparator.comparingInt(i -> i.getMatchingStacks().length));
-		Ingredients: for (Ingredient ingredient : sortedIngredients) {
+        Ingredients:
+        for (Ingredient ingredient : sortedIngredients) {
             for (ItemStack stack : remaining) {
                 if (stack.isEmpty())
                     continue;
@@ -87,11 +82,6 @@ public class MixingRecipe extends ProcessingRecipe<BasinInputInventory> {
         return true;
     }
 
-	public static MixingRecipe of(IRecipe<?> recipe) {
-		return new MixingRecipe(recipe.getId(), recipe.getGroup(), ProcessingIngredient.list(recipe.getIngredients()),
-			Collections.singletonList(new ProcessingOutput(recipe.getRecipeOutput(), 1)), -1);
-	}
-
     @Override
     protected boolean canHaveFluidIngredient() {
         return true;
@@ -101,4 +91,9 @@ public class MixingRecipe extends ProcessingRecipe<BasinInputInventory> {
     protected boolean canHaveFluidOutput() {
         return true;
     }
+
+    @Override
+    protected boolean requiresHeating() {
+        return this.requiredHeat > 0;
+    }
 }

src/main/java/com/simibubi/create/content/contraptions/components/press/PressingRecipe.java

@@ -1,25 +1,21 @@
 package com.simibubi.create.content.contraptions.components.press;
 
-import java.util.List;
-
 import com.simibubi.create.AllRecipeTypes;
 import com.simibubi.create.content.contraptions.components.press.MechanicalPressTileEntity.PressingInv;
 import com.simibubi.create.content.contraptions.processing.ProcessingIngredient;
 import com.simibubi.create.content.contraptions.processing.ProcessingOutput;
 import com.simibubi.create.content.contraptions.processing.ProcessingRecipe;
-
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.world.World;
-import net.minecraftforge.fluids.FluidStack;
 
 import javax.annotation.ParametersAreNonnullByDefault;
+import java.util.List;
 
 @ParametersAreNonnullByDefault
 public class PressingRecipe extends ProcessingRecipe<MechanicalPressTileEntity.PressingInv> {
 
 	public PressingRecipe(ResourceLocation id, String group, List<ProcessingIngredient> ingredients,
-		List<ProcessingOutput> results, int processingDuration, List<FluidStack> fluidIngredients,
+		List<ProcessingOutput> results, int processingDuration) {
-		List<FluidStack> fluidResults) {
 		super(AllRecipeTypes.PRESSING, id, group, ingredients, results, processingDuration);
 	}
 

src/main/java/com/simibubi/create/content/contraptions/components/saw/CuttingRecipe.java

@@ -1,25 +1,21 @@
 package com.simibubi.create.content.contraptions.components.saw;
 
-import java.util.List;
-
 import com.simibubi.create.AllRecipeTypes;
 import com.simibubi.create.content.contraptions.processing.ProcessingIngredient;
 import com.simibubi.create.content.contraptions.processing.ProcessingOutput;
 import com.simibubi.create.content.contraptions.processing.ProcessingRecipe;
-
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.world.World;
-import net.minecraftforge.fluids.FluidStack;
 import net.minecraftforge.items.wrapper.RecipeWrapper;
 
 import javax.annotation.ParametersAreNonnullByDefault;
+import java.util.List;
 
 @ParametersAreNonnullByDefault
 public class CuttingRecipe extends ProcessingRecipe<RecipeWrapper> {
 
 	public CuttingRecipe(ResourceLocation id, String group, List<ProcessingIngredient> ingredients,
-		List<ProcessingOutput> results, int processingDuration, List<FluidStack> fluidIngredients,
+		List<ProcessingOutput> results, int processingDuration) {
-		List<FluidStack> fluidResults) {
 		super(AllRecipeTypes.CUTTING, id, group, ingredients, results, processingDuration);
 	}
 

src/main/java/com/simibubi/create/content/contraptions/processing/ProcessingRecipe.java

@@ -1,11 +1,7 @@
 package com.simibubi.create.content.contraptions.processing;
 
-import java.util.List;
-import java.util.stream.Collectors;
-
 import com.simibubi.create.AllRecipeTypes;
 import com.simibubi.create.Create;
-
 import mcp.MethodsReturnNonnullByDefault;
 import net.minecraft.inventory.IInventory;
 import net.minecraft.item.ItemStack;
@@ -19,37 +15,31 @@ import net.minecraftforge.fluids.FluidStack;
 
 import javax.annotation.Nullable;
 import javax.annotation.ParametersAreNonnullByDefault;
+import java.util.List;
+import java.util.stream.Collectors;
 
 @MethodsReturnNonnullByDefault
 @ParametersAreNonnullByDefault
 public abstract class ProcessingRecipe<T extends IInventory> implements IRecipe<T> {
 	protected final List<ProcessingIngredient> ingredients;
-	private final List<ProcessingOutput> results;
-	private final IRecipeType<?> type;
-	private final IRecipeSerializer<?> serializer;
 	protected final ResourceLocation id;
 	protected final String group;
 	protected final int processingDuration;
 	protected final List<FluidStack> fluidIngredients;
 	protected final List<FluidStack> fluidResults;
+	protected final int requiredHeat;
+	private final List<ProcessingOutput> results;
+	private final IRecipeType<?> type;
+	private final IRecipeSerializer<?> serializer;
 
 	public ProcessingRecipe(AllRecipeTypes recipeType, ResourceLocation id, String group,
 		List<ProcessingIngredient> ingredients, List<ProcessingOutput> results, int processingDuration) {
-		this.type = recipeType.type;
+		this(recipeType, id, group, ingredients, results, processingDuration, null, null, 0);
-		this.serializer = recipeType.serializer;
-		this.id = id;
-		this.group = group;
-		this.ingredients = ingredients;
-		this.results = results;
-		this.processingDuration = processingDuration;
-		this.fluidIngredients = null;
-		this.fluidResults = null;
-		validate(recipeType);
 	}
 
 	public ProcessingRecipe(AllRecipeTypes recipeType, ResourceLocation id, String group,
 		List<ProcessingIngredient> ingredients, List<ProcessingOutput> results, int processingDuration,
-		@Nullable List<FluidStack> fluidIngredients, @Nullable List<FluidStack> fluidResults) {
+		@Nullable List<FluidStack> fluidIngredients, @Nullable List<FluidStack> fluidResults, int requiredHeat) {
 		this.type = recipeType.type;
 		this.serializer = recipeType.serializer;
 		this.id = id;
@@ -59,6 +49,7 @@ public abstract class ProcessingRecipe<T extends IInventory> implements IRecipe<
 		this.processingDuration = processingDuration;
 		this.fluidIngredients = fluidIngredients;
 		this.fluidResults = fluidResults;
+		this.requiredHeat = requiredHeat;
 		validate(recipeType);
 	}
 
@@ -167,4 +158,8 @@ public abstract class ProcessingRecipe<T extends IInventory> implements IRecipe<
 	protected boolean canHaveFluidOutput() {
 		return false;
 	}
+
+	protected boolean requiresHeating() {
+		return false;
+	}
 }

src/main/java/com/simibubi/create/content/contraptions/processing/ProcessingRecipeSerializer.java

@@ -1,11 +1,7 @@
 package com.simibubi.create.content.contraptions.processing;
 
-import java.util.ArrayList;
-import java.util.List;
-
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
-
 import mcp.MethodsReturnNonnullByDefault;
 import net.minecraft.fluid.Fluid;
 import net.minecraft.item.ItemStack;
@@ -17,7 +13,10 @@ import net.minecraft.util.registry.Registry;
 import net.minecraftforge.fluids.FluidStack;
 import net.minecraftforge.registries.ForgeRegistries;
 
+import javax.annotation.Nullable;
 import javax.annotation.ParametersAreNonnullByDefault;
+import java.util.ArrayList;
+import java.util.List;
 
 @MethodsReturnNonnullByDefault
 @ParametersAreNonnullByDefault
@@ -39,18 +38,11 @@ public class ProcessingRecipeSerializer<T extends ProcessingRecipe<?>>
 		for (JsonElement e : JSONUtils.getJsonArray(json, "ingredients")) {
 			JsonObject entry = e.getAsJsonObject();
 			if (JSONUtils.hasField(entry, "fluid")) {
-				Fluid fluid = ForgeRegistries.FLUIDS
+				addFluidToList(fluidIngredients, entry);
-					.getValue(ResourceLocation.tryCreate(JSONUtils.getString(entry.get("fluid"), "fluid")));
-				int amount = 1;
-				if (JSONUtils.hasField((JsonObject) e, "amount")) {
-					amount = JSONUtils.getInt(entry.get("amount"), "amount");
-				}
-				if (fluid != null && amount > 0)
-					fluidIngredients.add(new FluidStack(fluid, amount));
 			} else {
 				int count = 1;
-				if (JSONUtils.hasField((JsonObject) e, "count")) {
+				if (JSONUtils.hasField(entry, "count")) {
-					count = JSONUtils.getInt(entry.get("count"), "count");
+					count = JSONUtils.getInt(entry, "count");
 				}
 				for (int i = 0; i < count; i++) {
 					ingredients.add(ProcessingIngredient.parse(entry));
@@ -63,20 +55,13 @@ public class ProcessingRecipeSerializer<T extends ProcessingRecipe<?>>
 		for (JsonElement e : JSONUtils.getJsonArray(json, "results")) {
 			JsonObject entry = e.getAsJsonObject();
 			if (JSONUtils.hasField(entry, "fluid")) {
-				Fluid fluid = ForgeRegistries.FLUIDS
+				addFluidToList(fluidResults, entry);
-					.getValue(ResourceLocation.tryCreate(JSONUtils.getString(entry.get("fluid"), "fluid")));
-				int amount = 1;
-				if (JSONUtils.hasField((JsonObject) e, "amount")) {
-					amount = JSONUtils.getInt(entry.get("amount"), "amount");
-				}
-				if (fluid != null && amount > 0)
-					fluidResults.add(new FluidStack(fluid, amount));
 			} else {
-				String s1 = JSONUtils.getString(entry.get("item"), "item");
+				String s1 = JSONUtils.getString(entry, "item");
-				int i = JSONUtils.getInt(entry.get("count"), "count");
+				int i = JSONUtils.getInt(entry, "count");
 				float chance = 1;
-				if (JSONUtils.hasField((JsonObject) e, "chance"))
+				if (JSONUtils.hasField(entry, "chance"))
-					chance = JSONUtils.getFloat(entry.get("chance"), "chance");
+					chance = JSONUtils.getFloat(entry, "chance");
 				ItemStack itemstack = new ItemStack(Registry.ITEM.getOrDefault(new ResourceLocation(s1)), i);
 				results.add(new ProcessingOutput(itemstack, chance));
 			}
@@ -86,7 +71,22 @@ public class ProcessingRecipeSerializer<T extends ProcessingRecipe<?>>
 		if (JSONUtils.hasField(json, "processingTime"))
 			duration = JSONUtils.getInt(json, "processingTime");
 
-		return this.factory.create(recipeId, s, ingredients, results, duration, fluidIngredients, fluidResults);
+		int requiredHeat = 0;
+		if (JSONUtils.hasField(json, "requiredHeat"))
+			requiredHeat = JSONUtils.getInt(json, "requiredHeat");
+
+		return this.factory.create(recipeId, s, ingredients, results, duration, fluidIngredients, fluidResults,
+			requiredHeat);
+	}
+
+	private void addFluidToList(List<FluidStack> fluidStacks, JsonObject entry) {
+		Fluid fluid = ForgeRegistries.FLUIDS.getValue(ResourceLocation.tryCreate(JSONUtils.getString(entry, "fluid")));
+		int amount = 1;
+		if (JSONUtils.hasField(entry, "amount")) {
+			amount = JSONUtils.getInt(entry, "amount");
+		}
+		if (fluid != null && amount > 0)
+			fluidStacks.add(new FluidStack(fluid, amount));
 	}
 
 	public T read(ResourceLocation recipeId, PacketBuffer buffer) {
@@ -113,8 +113,10 @@ public class ProcessingRecipeSerializer<T extends ProcessingRecipe<?>>
 			fluidResults.add(FluidStack.readFromPacket(buffer));
 
 		int duration = buffer.readInt();
+		int requiredHeat = buffer.readInt();
 
-		return this.factory.create(recipeId, s, ingredients, results, duration, fluidIngredients, fluidResults);
+		return this.factory.create(recipeId, s, ingredients, results, duration, fluidIngredients, fluidResults,
+			requiredHeat);
 	}
 
 	public void write(PacketBuffer buffer, T recipe) {
@@ -141,12 +143,30 @@ public class ProcessingRecipeSerializer<T extends ProcessingRecipe<?>>
 		}
 
 		buffer.writeInt(recipe.processingDuration);
+		buffer.writeInt(recipe.requiredHeat);
 	}
 
 	public interface IRecipeFactory<T extends ProcessingRecipe<?>> {
-		T create(ResourceLocation recipeId, String s, List<ProcessingIngredient> ingredients,
+		default T create(ResourceLocation recipeId, String s, List<ProcessingIngredient> ingredients,
-			List<ProcessingOutput> results, int duration, List<FluidStack> fluidIngredients,
+			List<ProcessingOutput> results, int duration, @Nullable List<FluidStack> fluidIngredients,
-			List<FluidStack> fluidResults);
+			@Nullable List<FluidStack> fluidResults, int requiredHeat) {
+			return create(recipeId, s, ingredients, results, duration);
 		}
 
+		T create(ResourceLocation recipeId, String s, List<ProcessingIngredient> ingredients,
+			List<ProcessingOutput> results, int duration);
+	}
+
+	public interface IExtendedRecipeFactory<T extends ProcessingRecipe<?>> extends IRecipeFactory<T> {
+		@Override
+		T create(ResourceLocation recipeId, String s, List<ProcessingIngredient> ingredients,
+			List<ProcessingOutput> results, int duration, @Nullable List<FluidStack> fluidIngredients,
+			@Nullable List<FluidStack> fluidResults, int requiredHeat);
+
+		@Override
+		default T create(ResourceLocation recipeId, String s, List<ProcessingIngredient> ingredients,
+			List<ProcessingOutput> results, int duration) {
+			throw new IllegalStateException("Incorrect recipe creation function used: " + recipeId);
+		}
+	}
 }

src/main/java/com/simibubi/create/content/curiosities/tools/SandPaperPolishingRecipe.java

@@ -1,30 +1,26 @@
 package com.simibubi.create.content.curiosities.tools;
 
-import java.util.List;
-
 import com.simibubi.create.AllRecipeTypes;
 import com.simibubi.create.content.contraptions.processing.ProcessingIngredient;
 import com.simibubi.create.content.contraptions.processing.ProcessingOutput;
 import com.simibubi.create.content.contraptions.processing.ProcessingRecipe;
 import com.simibubi.create.content.curiosities.tools.SandPaperPolishingRecipe.SandPaperInv;
-
 import net.minecraft.item.ItemStack;
 import net.minecraft.item.crafting.IRecipe;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.Vec3d;
 import net.minecraft.world.World;
-import net.minecraftforge.fluids.FluidStack;
 import net.minecraftforge.items.ItemStackHandler;
 import net.minecraftforge.items.wrapper.RecipeWrapper;
 
 import javax.annotation.ParametersAreNonnullByDefault;
+import java.util.List;
 
 @ParametersAreNonnullByDefault
 public class SandPaperPolishingRecipe extends ProcessingRecipe<SandPaperInv> {
 
 	public SandPaperPolishingRecipe(ResourceLocation id, String group, List<ProcessingIngredient> ingredients,
-		List<ProcessingOutput> results, int processingDuration, List<FluidStack> fluidIngredients,
+		List<ProcessingOutput> results, int processingDuration) {
-		List<FluidStack> fluidResults) {
 		super(AllRecipeTypes.SANDPAPER_POLISHING, id, group, ingredients, results, processingDuration);
 	}
 
@@ -41,17 +37,17 @@ public class SandPaperPolishingRecipe extends ProcessingRecipe<SandPaperInv> {
 		return stack;
 	}
 
+	public static List<IRecipe<SandPaperInv>> getMatchingRecipes(World world, ItemStack stack) {
+		return world.getRecipeManager()
+			.getRecipes(AllRecipeTypes.SANDPAPER_POLISHING.getType(), new SandPaperInv(stack), world);
+	}
+
 	@Override
 	public boolean matches(SandPaperInv inv, World worldIn) {
 		return ingredients.get(0)
 			.test(inv.getStackInSlot(0));
 	}
 
-	public static List<IRecipe<SandPaperInv>> getMatchingRecipes(World world, ItemStack stack) {
-		return world.getRecipeManager()
-			.getRecipes(AllRecipeTypes.SANDPAPER_POLISHING.getType(), new SandPaperInv(stack), world);
-	}
-
 	@Override
 	protected int getMaxOutputCount() {
 		return 1;