151 lines
5.2 KiB
Java
151 lines
5.2 KiB
Java
/*
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* Minecraft Forge
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* Copyright (c) 2016-2020.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package net.minecraftforge.common.crafting;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.function.Consumer;
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import java.util.function.Supplier;
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import com.google.gson.JsonArray;
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import com.google.gson.JsonElement;
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import com.google.gson.JsonObject;
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import com.google.gson.JsonSyntaxException;
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import net.minecraft.advancements.Advancement;
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import net.minecraft.data.IFinishedRecipe;
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import net.minecraft.util.JSONUtils;
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import net.minecraftforge.common.crafting.conditions.ICondition;
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import javax.annotation.Nullable;
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public class ConditionalAdvancement
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{
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public static Builder builder()
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{
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return new Builder();
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}
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@Deprecated
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public static boolean processConditions(JsonObject json) {
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return processConditional(json) != null;
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}
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/**
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* Processes the conditional advancement during loading.
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* @param json The incoming json from the advancement file.
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* @return The advancement that passed the conditions, or null if none did.
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*/
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@Nullable
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public static JsonObject processConditional(JsonObject json) {
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JsonArray entries = JSONUtils.getJsonArray(json, "advancements", null);
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if (entries == null)
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{
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return CraftingHelper.processConditions(json, "conditions") ? json : null;
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}
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int idx = 0;
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for (JsonElement ele : entries)
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{
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if (!ele.isJsonObject())
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throw new JsonSyntaxException("Invalid advancement entry at index " + idx + " Must be JsonObject");
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if (CraftingHelper.processConditions(JSONUtils.getJsonArray(ele.getAsJsonObject(), "conditions")))
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return JSONUtils.getJsonObject(ele.getAsJsonObject(), "advancement");
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idx++;
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}
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return null;
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}
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public static class Builder
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{
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private List<ICondition[]> conditions = new ArrayList<>();
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private List<Supplier<JsonElement>> advancements = new ArrayList<>();
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private List<ICondition> currentConditions = new ArrayList<>();
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private boolean locked = false;
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public Builder addCondition(ICondition condition)
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{
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if (locked)
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throw new IllegalStateException("Attempted to modify finished builder");
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currentConditions.add(condition);
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return this;
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}
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public Builder addAdvancement(Consumer<Consumer<Advancement.Builder>> callable)
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{
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if (locked)
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throw new IllegalStateException("Attempted to modify finished builder");
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callable.accept(this::addAdvancement);
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return this;
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}
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public Builder addAdvancement(Advancement.Builder advancement)
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{
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return addAdvancement(advancement::serialize);
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}
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public Builder addAdvancement(IFinishedRecipe fromRecipe)
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{
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return addAdvancement(fromRecipe::getAdvancementJson);
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}
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private Builder addAdvancement(Supplier<JsonElement> jsonSupplier)
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{
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if (locked)
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throw new IllegalStateException("Attempted to modify finished builder");
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if (currentConditions.isEmpty())
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throw new IllegalStateException("Can not add a advancement with no conditions.");
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conditions.add(currentConditions.toArray(new ICondition[currentConditions.size()]));
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advancements.add(jsonSupplier);
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currentConditions.clear();
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return this;
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}
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public JsonObject write()
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{
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if (!locked)
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{
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if (!currentConditions.isEmpty())
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throw new IllegalStateException("Invalid builder state: Orphaned conditions");
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if (advancements.isEmpty())
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throw new IllegalStateException("Invalid builder state: No Advancements");
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locked = true;
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}
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JsonObject json = new JsonObject();
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JsonArray array = new JsonArray();
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json.add("advancements", array);
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for (int x = 0; x < conditions.size(); x++)
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{
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JsonObject holder = new JsonObject();
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JsonArray conds = new JsonArray();
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for (ICondition c : conditions.get(x))
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conds.add(CraftingHelper.serialize(c));
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holder.add("conditions", conds);
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holder.add("advancement", advancements.get(x).get());
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array.add(holder);
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}
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return json;
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}
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}
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}
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