161 lines
5.2 KiB
Java
161 lines
5.2 KiB
Java
/*
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* WorldEdit, a Minecraft world manipulation toolkit
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* Copyright (C) sk89q <http://www.sk89q.com>
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* Copyright (C) WorldEdit team and contributors
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.sk89q.worldedit.world.registry;
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import com.google.common.io.Resources;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import com.google.gson.JsonDeserializer;
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import com.google.gson.JsonPrimitive;
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import com.google.gson.reflect.TypeToken;
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import com.sk89q.worldedit.WorldEdit;
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import com.sk89q.worldedit.extension.platform.Capability;
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import com.sk89q.worldedit.math.Vector3;
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import com.sk89q.worldedit.util.gson.VectorAdapter;
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import com.sk89q.worldedit.util.io.ResourceLoader;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import javax.annotation.Nullable;
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import java.io.IOException;
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import java.net.URL;
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import java.nio.charset.Charset;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* Provides block data based on the built-in block database that is bundled
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* with WorldEdit.
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*
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* <p>A new instance cannot be created. Use {@link #getInstance()} to get
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* an instance.</p>
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*
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* <p>The data is read from a JSON file that is bundled with WorldEdit. If
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* reading fails (which occurs when this class is first instantiated), then
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* the methods will return {@code null}s for all blocks.</p>
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*/
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public final class BundledBlockData {
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private static final Logger log = LoggerFactory.getLogger(BundledBlockData.class);
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private static BundledBlockData INSTANCE;
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private final Map<String, BlockEntry> idMap = new HashMap<>();
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/**
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* Create a new instance.
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*/
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private BundledBlockData() {
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try {
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loadFromResource();
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} catch (Throwable e) {
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log.warn("Failed to load the built-in block registry", e);
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}
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}
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/**
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* Attempt to load the data from file.
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*
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* @throws IOException thrown on I/O error
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*/
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private void loadFromResource() throws IOException {
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GsonBuilder gsonBuilder = new GsonBuilder();
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gsonBuilder.registerTypeAdapter(Vector3.class, new VectorAdapter());
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gsonBuilder.registerTypeAdapter(int.class, (JsonDeserializer<Integer>) (json, typeOfT, context) -> {
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JsonPrimitive primitive = (JsonPrimitive) json;
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if (primitive.isString()) {
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String value = primitive.getAsString();
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if (value.charAt(0) == '#') return Integer.parseInt(value.substring(1), 16);
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return Integer.parseInt(value);
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}
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return primitive.getAsInt();
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});
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Gson gson = gsonBuilder.create();
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URL url = null;
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final int dataVersion = WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING).getDataVersion();
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if (dataVersion > 1900) { // > MC 1.13
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url = ResourceLoader.getResource(BundledBlockData.class, "blocks.114.json");
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}
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if (url == null) {
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url = ResourceLoader.getResource(BundledBlockData.class, "blocks.json");
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}
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if (url == null) {
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throw new IOException("Could not find blocks.json");
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}
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log.debug("Using {} for bundled block data.", url);
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String data = Resources.toString(url, Charset.defaultCharset());
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List<BlockEntry> entries = gson.fromJson(data, new TypeToken<List<BlockEntry>>() {}.getType());
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for (BlockEntry entry : entries) {
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idMap.put(entry.id, entry);
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}
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}
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/**
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* Return the entry for the given block ID.
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*
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* @param id the ID
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* @return the entry, or null
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*/
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@Nullable
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public BlockEntry findById(String id) {
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// If it has no namespace, assume minecraft.
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if (!id.contains(":")) {
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id = "minecraft:" + id;
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}
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return idMap.get(id);
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}
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/**
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* Get the material properties for the given block.
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*
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* @param id the string ID
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* @return the material's properties, or null
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*/
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@Nullable
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public BlockMaterial getMaterialById(String id) {
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BlockEntry entry = findById(id);
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if (entry != null) {
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return entry.material;
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} else {
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return null;
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}
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}
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/**
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* Get a singleton instance of this object.
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*
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* @return the instance
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*/
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public static BundledBlockData getInstance() {
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if (INSTANCE == null) {
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INSTANCE = new BundledBlockData();
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}
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return INSTANCE;
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}
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public static class BlockEntry {
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public String id;
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public String localizedName;
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public SimpleBlockMaterial material = new SimpleBlockMaterial();
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}
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}
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