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CraftingHelper.java
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CraftingHelper.java
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/*
* Copyright (c) Forge Development LLC and contributors
* SPDX-License-Identifier: LGPL-2.1-only
*/
package net.minecraftforge.common.crafting;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import com.google.common.collect.BiMap;
import com.google.common.collect.HashBiMap;
import com.google.common.collect.Lists;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonSyntaxException;
import com.mojang.brigadier.exceptions.CommandSyntaxException;
import net.minecraft.world.item.Item;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.Items;
import net.minecraft.world.item.crafting.Ingredient;
import net.minecraftforge.common.crafting.conditions.ICondition;
import net.minecraftforge.common.crafting.conditions.IConditionSerializer;
import net.minecraft.nbt.TagParser;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.network.FriendlyByteBuf;
import net.minecraft.util.GsonHelper;
import net.minecraft.resources.ResourceLocation;
import net.minecraftforge.registries.ForgeRegistries;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.Marker;
import org.apache.logging.log4j.MarkerManager;
import org.jetbrains.annotations.Nullable;
public class CraftingHelper
{
@SuppressWarnings("unused")
private static final Logger LOGGER = LogManager.getLogger();
@SuppressWarnings("unused")
private static final Marker CRAFTHELPER = MarkerManager.getMarker("CRAFTHELPER");
private static Gson GSON = new GsonBuilder().setPrettyPrinting().disableHtmlEscaping().create();
private static final Map<ResourceLocation, IConditionSerializer<?>> conditions = new HashMap<>();
private static final BiMap<ResourceLocation, IIngredientSerializer<?>> ingredients = HashBiMap.create();
public static IConditionSerializer<?> register(IConditionSerializer<?> serializer)
{
ResourceLocation key = serializer.getID();
if (conditions.containsKey(key))
throw new IllegalStateException("Duplicate recipe condition serializer: " + key);
conditions.put(key, serializer);
return serializer;
}
public static <T extends Ingredient> IIngredientSerializer<T> register(ResourceLocation key, IIngredientSerializer<T> serializer)
{
if (ingredients.containsKey(key))
throw new IllegalStateException("Duplicate recipe ingredient serializer: " + key);
if (ingredients.containsValue(serializer))
throw new IllegalStateException("Duplicate recipe ingredient serializer: " + key + " " + serializer);
ingredients.put(key, serializer);
return serializer;
}
@Nullable
public static ResourceLocation getID(IIngredientSerializer<?> serializer)
{
return ingredients.inverse().get(serializer);
}
public static <T extends Ingredient> void write(FriendlyByteBuf buffer, T ingredient)
{
@SuppressWarnings("unchecked") //I wonder if there is a better way generic wise...
IIngredientSerializer<T> serializer = (IIngredientSerializer<T>)ingredient.getSerializer();
ResourceLocation key = ingredients.inverse().get(serializer);
if (key == null)
throw new IllegalArgumentException("Tried to serialize unregistered Ingredient: " + ingredient + " " + serializer);
if (serializer != VanillaIngredientSerializer.INSTANCE)
{
buffer.writeVarInt(-1); //Marker to know there is a custom ingredient
buffer.writeResourceLocation(key);
}
serializer.write(buffer, ingredient);
}
public static Ingredient getIngredient(ResourceLocation type, FriendlyByteBuf buffer)
{
IIngredientSerializer<?> serializer = ingredients.get(type);
if (serializer == null)
throw new IllegalArgumentException("Can not deserialize unknown Ingredient type: " + type);
return serializer.parse(buffer);
}
public static Ingredient getIngredient(JsonElement json)
{
if (json == null || json.isJsonNull())
throw new JsonSyntaxException("Json cannot be null");
if (json.isJsonArray())
{
List<Ingredient> ingredients = Lists.newArrayList();
List<Ingredient> vanilla = Lists.newArrayList();
json.getAsJsonArray().forEach((ele) ->
{
Ingredient ing = CraftingHelper.getIngredient(ele);
if (ing.getClass() == Ingredient.class) //Vanilla, Due to how we read it splits each itemstack, so we pull out to re-merge later
vanilla.add(ing);
else
ingredients.add(ing);
});
if (!vanilla.isEmpty())
ingredients.add(Ingredient.merge(vanilla));
if (ingredients.size() == 0)
throw new JsonSyntaxException("Item array cannot be empty, at least one item must be defined");
if (ingredients.size() == 1)
return ingredients.get(0);
return new CompoundIngredient(ingredients);
}
if (!json.isJsonObject())
throw new JsonSyntaxException("Expcted ingredient to be a object or array of objects");
JsonObject obj = (JsonObject)json;
String type = GsonHelper.getAsString(obj, "type", "minecraft:item");
if (type.isEmpty())
throw new JsonSyntaxException("Ingredient type can not be an empty string");
IIngredientSerializer<?> serializer = ingredients.get(new ResourceLocation(type));
if (serializer == null)
throw new JsonSyntaxException("Unknown ingredient type: " + type);
return serializer.parse(obj);
}
public static ItemStack getItemStack(JsonObject json, boolean readNBT)
{
return getItemStack(json, readNBT, false);
}
public static Item getItem(String itemName, boolean disallowsAirInRecipe)
{
ResourceLocation itemKey = new ResourceLocation(itemName);
if (!ForgeRegistries.ITEMS.containsKey(itemKey))
throw new JsonSyntaxException("Unknown item '" + itemName + "'");
Item item = ForgeRegistries.ITEMS.getValue(itemKey);
if (disallowsAirInRecipe && item == Items.AIR)
throw new JsonSyntaxException("Invalid item: " + itemName);
return Objects.requireNonNull(item);
}
public static CompoundTag getNBT(JsonElement element)
{
try
{
if (element.isJsonObject())
return TagParser.parseTag(GSON.toJson(element));
else
return TagParser.parseTag(GsonHelper.convertToString(element, "nbt"));
}
catch (CommandSyntaxException e)
{
throw new JsonSyntaxException("Invalid NBT Entry: " + e);
}
}
public static ItemStack getItemStack(JsonObject json, boolean readNBT, boolean disallowsAirInRecipe)
{
String itemName = GsonHelper.getAsString(json, "item");
Item item = getItem(itemName, disallowsAirInRecipe);
if (readNBT && json.has("nbt"))
{
CompoundTag nbt = getNBT(json.get("nbt"));
CompoundTag tmp = new CompoundTag();
if (nbt.contains("ForgeCaps"))
{
tmp.put("ForgeCaps", nbt.get("ForgeCaps"));
nbt.remove("ForgeCaps");
}
tmp.put("tag", nbt);
tmp.putString("id", itemName);
tmp.putInt("Count", GsonHelper.getAsInt(json, "count", 1));
return ItemStack.of(tmp);
}
return new ItemStack(item, GsonHelper.getAsInt(json, "count", 1));
}
public static boolean processConditions(JsonObject json, String memberName, ICondition.IContext context)
{
return !json.has(memberName) || processConditions(GsonHelper.getAsJsonArray(json, memberName), context);
}
public static boolean processConditions(JsonArray conditions, ICondition.IContext context)
{
for (int x = 0; x < conditions.size(); x++)
{
if (!conditions.get(x).isJsonObject())
throw new JsonSyntaxException("Conditions must be an array of JsonObjects");
JsonObject json = conditions.get(x).getAsJsonObject();
if (!CraftingHelper.getCondition(json).test(context))
return false;
}
return true;
}
public static ICondition getCondition(JsonObject json)
{
ResourceLocation type = new ResourceLocation(GsonHelper.getAsString(json, "type"));
IConditionSerializer<?> serializer = conditions.get(type);
if (serializer == null)
throw new JsonSyntaxException("Unknown condition type: " + type.toString());
return serializer.read(json);
}
public static <T extends ICondition> JsonObject serialize(T condition)
{
@SuppressWarnings("unchecked")
IConditionSerializer<T> serializer = (IConditionSerializer<T>)conditions.get(condition.getID());
if (serializer == null)
throw new JsonSyntaxException("Unknown condition type: " + condition.getID().toString());
return serializer.getJson(condition);
}
public static JsonArray serialize(ICondition... conditions)
{
JsonArray arr = new JsonArray();
for(ICondition iCond : conditions)
{
arr.add(serialize(iCond));
}
return arr;
}
}