forked from GeyserMC/Geyser
366 lines
15 KiB
Java
366 lines
15 KiB
Java
/*
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* Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @author GeyserMC
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* @link https://github.com/GeyserMC/Geyser
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*/
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package org.geysermc.connector.network.translators.java;
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import com.github.steveice10.mc.protocol.data.game.command.CommandNode;
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import com.github.steveice10.mc.protocol.data.game.command.CommandParser;
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import com.github.steveice10.mc.protocol.packet.ingame.server.ServerDeclareCommandsPacket;
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import com.nukkitx.protocol.bedrock.data.command.CommandData;
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import com.nukkitx.protocol.bedrock.data.command.CommandEnumData;
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import com.nukkitx.protocol.bedrock.data.command.CommandParamData;
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import com.nukkitx.protocol.bedrock.data.command.CommandParamType;
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import com.nukkitx.protocol.bedrock.packet.AvailableCommandsPacket;
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import it.unimi.dsi.fastutil.Hash;
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import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
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import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
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import it.unimi.dsi.fastutil.ints.IntOpenHashSet;
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import it.unimi.dsi.fastutil.ints.IntSet;
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import it.unimi.dsi.fastutil.objects.Object2ObjectOpenCustomHashMap;
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import lombok.Getter;
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import org.geysermc.connector.GeyserConnector;
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import org.geysermc.connector.network.session.GeyserSession;
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import org.geysermc.connector.network.translators.PacketTranslator;
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import org.geysermc.connector.network.translators.Translator;
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import java.util.*;
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@Translator(packet = ServerDeclareCommandsPacket.class)
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public class JavaDeclareCommandsTranslator extends PacketTranslator<ServerDeclareCommandsPacket> {
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private static final String[] ENUM_BOOLEAN = {"true", "false"};
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private static final Hash.Strategy<CommandParamData[][]> PARAM_STRATEGY = new Hash.Strategy<CommandParamData[][]>() {
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@Override
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public int hashCode(CommandParamData[][] o) {
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return Arrays.deepHashCode(o);
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}
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@Override
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public boolean equals(CommandParamData[][] a, CommandParamData[][] b) {
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if (a == b) return true;
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if (a == null || b == null) return false;
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if (a.length != b.length) return false;
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for (int i = 0; i < a.length; i++) {
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CommandParamData[] a1 = a[i];
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CommandParamData[] b1 = b[i];
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if (a1.length != b1.length) return false;
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for (int i2 = 0; i2 < a1.length; i2++) {
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if (!a1[i].equals(b1[i])) return false;
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}
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}
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return true;
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}
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};
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/**
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* Build the command parameter array for the given command
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*
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* @param commandNode The command to build the parameters for
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* @param allNodes Every command node
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* @return An array of parameter option arrays
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*/
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private static CommandParamData[][] getParams(CommandNode commandNode, CommandNode[] allNodes) {
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// Check if the command is an alias and redirect it
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if (commandNode.getRedirectIndex() != -1) {
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GeyserConnector.getInstance().getLogger().debug("Redirecting command " + commandNode.getName() + " to " + allNodes[commandNode.getRedirectIndex()].getName());
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commandNode = allNodes[commandNode.getRedirectIndex()];
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}
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if (commandNode.getChildIndices().length >= 1) {
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// Create the root param node and build all the children
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ParamInfo rootParam = new ParamInfo(commandNode, null);
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rootParam.buildChildren(allNodes);
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List<CommandParamData[]> treeData = rootParam.getTree();
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return treeData.toArray(new CommandParamData[0][]);
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}
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return new CommandParamData[0][0];
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}
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/**
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* Convert Java edition command types to Bedrock edition
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*
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* @param parser Command type to convert
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* @return Bedrock parameter data type
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*/
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private static Object mapCommandType(CommandParser parser) {
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if (parser == null) {
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return CommandParamType.STRING;
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}
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switch (parser) {
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case FLOAT:
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case ROTATION:
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case DOUBLE:
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return CommandParamType.FLOAT;
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case INTEGER:
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return CommandParamType.INT;
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case ENTITY:
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case GAME_PROFILE:
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return CommandParamType.TARGET;
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case BLOCK_POS:
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return CommandParamType.BLOCK_POSITION;
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case COLUMN_POS:
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case VEC3:
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return CommandParamType.POSITION;
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case MESSAGE:
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return CommandParamType.MESSAGE;
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case NBT:
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case NBT_COMPOUND_TAG:
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case NBT_TAG:
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case NBT_PATH:
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return CommandParamType.JSON;
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case RESOURCE_LOCATION:
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case FUNCTION:
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return CommandParamType.FILE_PATH;
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case INT_RANGE:
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return CommandParamType.INT_RANGE;
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case BOOL:
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return ENUM_BOOLEAN;
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case OPERATION: // Possibly OPERATOR
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return CommandParamType.OPERATOR;
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case STRING:
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case VEC2:
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case BLOCK_STATE:
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case BLOCK_PREDICATE:
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case ITEM_STACK:
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case ITEM_PREDICATE:
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case COLOR:
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case COMPONENT:
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case OBJECTIVE:
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case OBJECTIVE_CRITERIA:
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case PARTICLE:
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case SCOREBOARD_SLOT:
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case SCORE_HOLDER:
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case SWIZZLE:
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case TEAM:
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case ITEM_SLOT:
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case MOB_EFFECT:
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case ENTITY_ANCHOR:
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case RANGE:
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case FLOAT_RANGE:
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case ITEM_ENCHANTMENT:
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case ENTITY_SUMMON:
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case DIMENSION:
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case TIME:
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default:
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return CommandParamType.STRING;
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}
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}
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@Override
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public void translate(ServerDeclareCommandsPacket packet, GeyserSession session) {
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// Don't send command suggestions if they are disabled
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if (!session.getConnector().getConfig().isCommandSuggestions()) {
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session.getConnector().getLogger().debug("Not sending command suggestions as they are disabled.");
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return;
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}
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CommandNode[] nodes = packet.getNodes();
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List<CommandData> commandData = new ArrayList<>();
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IntSet commandNodes = new IntOpenHashSet();
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Set<String> knownAliases = new HashSet<>();
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Map<CommandParamData[][], Set<String>> commands = new Object2ObjectOpenCustomHashMap<>(PARAM_STRATEGY);
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Int2ObjectMap<List<CommandNode>> commandArgs = new Int2ObjectOpenHashMap<>();
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// Get the first node, it should be a root node
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CommandNode rootNode = nodes[packet.getFirstNodeIndex()];
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// Loop through the root nodes to get all commands
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for (int nodeIndex : rootNode.getChildIndices()) {
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CommandNode node = nodes[nodeIndex];
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// Make sure we don't have duplicated commands (happens if there is more than 1 root node)
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if (!commandNodes.add(nodeIndex) || !knownAliases.add(node.getName().toLowerCase())) continue;
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// Get and update the commandArgs list with the found arguments
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if (node.getChildIndices().length >= 1) {
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for (int childIndex : node.getChildIndices()) {
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commandArgs.putIfAbsent(nodeIndex, new ArrayList<>());
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commandArgs.get(nodeIndex).add(nodes[childIndex]);
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}
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}
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// Get and parse all params
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CommandParamData[][] params = getParams(nodes[nodeIndex], nodes);
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// Insert the alias name into the command list
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commands.computeIfAbsent(params, index -> new HashSet<>()).add(node.getName().toLowerCase());
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}
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// The command flags, not sure what these do apart from break things
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List<CommandData.Flag> flags = new ArrayList<>();
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// Loop through all the found commands
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for (Map.Entry<CommandParamData[][], Set<String>> entry : commands.entrySet()) {
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String commandName = entry.getValue().iterator().next(); // We know this has a value
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// Create a basic alias
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CommandEnumData aliases = new CommandEnumData(commandName + "Aliases", entry.getValue().toArray(new String[0]), false);
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// Build the completed command and add it to the final list
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CommandData data = new CommandData(commandName, session.getConnector().getCommandManager().getDescription(commandName), flags, (byte) 0, aliases, entry.getKey());
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commandData.add(data);
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}
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// Add our commands to the AvailableCommandsPacket for the bedrock client
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AvailableCommandsPacket availableCommandsPacket = new AvailableCommandsPacket();
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for (CommandData data : commandData) {
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availableCommandsPacket.getCommands().add(data);
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}
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GeyserConnector.getInstance().getLogger().debug("Sending command packet of " + commandData.size() + " commands");
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// Finally, send the commands to the client
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session.sendUpstreamPacket(availableCommandsPacket);
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}
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@Getter
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private static class ParamInfo {
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private CommandNode paramNode;
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private CommandParamData paramData;
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private List<ParamInfo> children;
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/**
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* Create a new parameter info object
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*
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* @param paramNode CommandNode the parameter is for
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* @param paramData The existing parameters for the command
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*/
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public ParamInfo(CommandNode paramNode, CommandParamData paramData) {
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this.paramNode = paramNode;
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this.paramData = paramData;
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this.children = new ArrayList<>();
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}
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/**
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* Build the array of all the child parameters (recursive)
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*
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* @param allNodes Every command node
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*/
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public void buildChildren(CommandNode[] allNodes) {
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int enumIndex = -1;
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for (int paramID : paramNode.getChildIndices()) {
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CommandNode paramNode = allNodes[paramID];
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if (paramNode.getParser() == null) {
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if (enumIndex == -1) {
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enumIndex = children.size();
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// Create the new enum command
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Object mappedType = mapCommandType(paramNode.getParser());
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CommandEnumData enumData;
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CommandParamType type = null;
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if (mappedType instanceof String[]) {
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enumData = new CommandEnumData(paramNode.getName(), (String[]) mappedType, false);
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} else {
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enumData = new CommandEnumData(paramNode.getName(), new String[]{paramNode.getName()}, false);
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type = (CommandParamType) mappedType;
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}
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children.add(new ParamInfo(paramNode, new CommandParamData(paramNode.getName(), false, enumData, type, null, Collections.emptyList())));
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} else {
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// Get the existing enum
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ParamInfo enumParamInfo = children.get(enumIndex);
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// Extend the current list of enum values
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String[] enumOptions = Arrays.copyOf(enumParamInfo.getParamData().getEnumData().getValues(), enumParamInfo.getParamData().getEnumData().getValues().length + 1);
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enumOptions[enumOptions.length - 1] = paramNode.getName();
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// Re-create the command using the updated values
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CommandEnumData enumData = new CommandEnumData(enumParamInfo.getParamData().getEnumData().getName(), enumOptions, false);
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children.set(enumIndex, new ParamInfo(enumParamInfo.getParamNode(), new CommandParamData(enumParamInfo.getParamData().getName(), false, enumData, enumParamInfo.getParamData().getType(), null, Collections.emptyList())));
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}
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} else {
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// Put the non-enum param into the list
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Object mappedType = mapCommandType(paramNode.getParser());
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CommandEnumData enumData = null;
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CommandParamType type = null;
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if (mappedType instanceof String[]) {
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enumData = new CommandEnumData(paramNode.getName(), new String[]{paramNode.getName()}, false);
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} else {
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type = (CommandParamType) mappedType;
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}
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children.add(new ParamInfo(paramNode, new CommandParamData(paramNode.getName(), false, enumData, type, null, Collections.emptyList())));
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}
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}
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// Recursively build all child options
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for (ParamInfo child : children) {
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child.buildChildren(allNodes);
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}
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}
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/**
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* Get the tree of every parameter node (recursive)
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*
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* @return List of parameter options arrays for the command
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*/
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public List<CommandParamData[]> getTree() {
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List<CommandParamData[]> treeParamData = new ArrayList<>();
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for (ParamInfo child : children) {
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// Get the tree from the child
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List<CommandParamData[]> childTree = child.getTree();
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// Un-pack the tree append the child node to it and push into the list
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for (CommandParamData[] subchild : childTree) {
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CommandParamData[] tmpTree = new ArrayList<CommandParamData>() {
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{
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add(child.getParamData());
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addAll(Arrays.asList(subchild));
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}
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}.toArray(new CommandParamData[0]);
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treeParamData.add(tmpTree);
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}
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// If we have no more child parameters just the child
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if (childTree.size() == 0) {
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treeParamData.add(new CommandParamData[] { child.getParamData() });
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}
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}
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return treeParamData;
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}
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}
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}
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