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Merge pull request #308 from rtm516/command-completion

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Command auto-completion
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Redned 2020-04-15 15:31:38 -05:00 committed by GitHub
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connector/src/main/java/org/geysermc/connector/network/translators/java/JavaServerDeclareCommandsTranslator.java Normal file
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/*
* Copyright (c) 2019-2020 GeyserMC. http://geysermc.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @author GeyserMC
* @link https://github.com/GeyserMC/Geyser
*/
package org.geysermc.connector.network.translators.java;
import com.github.steveice10.mc.protocol.data.game.command.CommandNode;
import com.github.steveice10.mc.protocol.data.game.command.CommandParser;
import com.github.steveice10.mc.protocol.packet.ingame.server.ServerDeclareCommandsPacket;
import com.nukkitx.protocol.bedrock.data.CommandData;
import com.nukkitx.protocol.bedrock.data.CommandEnumData;
import com.nukkitx.protocol.bedrock.data.CommandParamData;
import com.nukkitx.protocol.bedrock.packet.AvailableCommandsPacket;
import lombok.Getter;
import org.geysermc.connector.GeyserConnector;
import org.geysermc.connector.network.session.GeyserSession;
import org.geysermc.connector.network.translators.PacketTranslator;
import org.geysermc.connector.network.translators.Translator;
import java.util.*;
@Translator(packet = ServerDeclareCommandsPacket.class)
public class JavaServerDeclareCommandsTranslator extends PacketTranslator<ServerDeclareCommandsPacket> {
@Override
public void translate(ServerDeclareCommandsPacket packet, GeyserSession session) {
List<CommandData> commandData = new ArrayList<>();
Map<Integer, String> commands = new HashMap<>();
Map<Integer, List<CommandNode>> commandArgs = new HashMap<>();
// Get the first node, it should be a root node
CommandNode rootNode = packet.getNodes()[packet.getFirstNodeIndex()];
// Loop through the root nodes to get all commands
for (int nodeIndex : rootNode.getChildIndices()) {
CommandNode node = packet.getNodes()[nodeIndex];
// Make sure we dont have duplicated commands (happens if there is more than 1 root node)
if (commands.containsKey(nodeIndex)) { continue; }
// Get and update the commandArgs list with the found arguments
if (node.getChildIndices().length >= 1) {
for (int childIndex : node.getChildIndices()) {
commandArgs.putIfAbsent(nodeIndex, new ArrayList<>());
commandArgs.get(nodeIndex).add(packet.getNodes()[childIndex]);
}
}
// Insert the command name into the list
commands.put(nodeIndex, node.getName());
}
// The command flags, not sure what these do apart from break things
List<CommandData.Flag> flags = new ArrayList<>();
// Loop through all the found commands
for (int commandID : commands.keySet()) {
String commandName = commands.get(commandID);
// Create a basic alias
CommandEnumData aliases = new CommandEnumData( commandName + "Aliases", new String[] { commandName.toLowerCase() }, false);
// Get and parse all params
CommandParamData[][] params = getParams(commandID, packet.getNodes()[commandID], packet.getNodes());
// Build the completed command and add it to the final list
CommandData data = new CommandData(commandName, "A Java server command", flags, (byte) 0, aliases, params);
commandData.add(data);
}
// Add our commands to the AvailableCommandsPacket for the bedrock client
AvailableCommandsPacket availableCommandsPacket = new AvailableCommandsPacket();
for (CommandData data : commandData) {
availableCommandsPacket.getCommands().add(data);
}
GeyserConnector.getInstance().getLogger().debug("Sending command packet of " + commandData.size() + " commands");
// Finally, send the commands to the client
session.getUpstream().sendPacket(availableCommandsPacket);
}
private CommandParamData[][] getParams(int commandID, CommandNode commandNode, CommandNode[] allNodes) {
// Check if the command is an alias and redirect it
if (commandNode.getRedirectIndex() != -1) {
GeyserConnector.getInstance().getLogger().debug("Redirecting command " + commandNode.getName() + " to " + allNodes[commandNode.getRedirectIndex()].getName());
commandNode = allNodes[commandNode.getRedirectIndex()];
}
if (commandNode.getChildIndices().length >= 1) {
// Create the root param node and build all the children
ParamInfo rootParam = new ParamInfo(commandNode, null);
rootParam.buildChildren(allNodes);
List<CommandParamData[]> treeData = rootParam.getTree();
CommandParamData[][] params = new CommandParamData[treeData.size()][];
// Fill the nested params array
int i = 0;
for (CommandParamData[] tree : treeData) {
params[i] = tree;
i++;
}
return params;
}
return new CommandParamData[0][0];
}
private CommandParamData.Type mapCommandType(CommandParser parser) {
if (parser == null) { return CommandParamData.Type.STRING; }
switch (parser) {
case FLOAT:
return CommandParamData.Type.FLOAT;
case INTEGER:
return CommandParamData.Type.INT;
case ENTITY:
case GAME_PROFILE:
return CommandParamData.Type.TARGET;
case BLOCK_POS:
return CommandParamData.Type.BLOCK_POSITION;
case COLUMN_POS:
case VEC3:
return CommandParamData.Type.POSITION;
case MESSAGE:
return CommandParamData.Type.MESSAGE;
case NBT:
case NBT_COMPOUND_TAG:
case NBT_TAG:
case NBT_PATH:
return CommandParamData.Type.JSON;
case RESOURCE_LOCATION:
return CommandParamData.Type.FILE_PATH;
case INT_RANGE:
return CommandParamData.Type.INT_RANGE;
case BOOL:
case DOUBLE:
case STRING:
case VEC2:
case BLOCK_STATE:
case BLOCK_PREDICATE:
case ITEM_STACK:
case ITEM_PREDICATE:
case COLOR:
case COMPONENT:
case OBJECTIVE:
case OBJECTIVE_CRITERIA:
case OPERATION: // Possibly OPERATOR
case PARTICLE:
case ROTATION:
case SCOREBOARD_SLOT:
case SCORE_HOLDER:
case SWIZZLE:
case TEAM:
case ITEM_SLOT:
case MOB_EFFECT:
case FUNCTION:
case ENTITY_ANCHOR:
case RANGE:
case FLOAT_RANGE:
case ITEM_ENCHANTMENT:
case ENTITY_SUMMON:
case DIMENSION:
case TIME:
default:
return CommandParamData.Type.STRING;
}
}
@Getter
private class ParamInfo {
private CommandNode paramNode;
private CommandParamData paramData;
private List<ParamInfo> children;
public ParamInfo(CommandNode paramNode, CommandParamData paramData) {
this.paramNode = paramNode;
this.paramData = paramData;
this.children = new ArrayList<>();
}
public void buildChildren(CommandNode[] allNodes) {
int enumIndex = -1;
for (int paramID : paramNode.getChildIndices()) {
CommandNode paramNode = allNodes[paramID];
if (paramNode.getParser() == null) {
if (enumIndex == -1) {
enumIndex = children.size();
// Create the new enum command
CommandEnumData enumData = new CommandEnumData(paramNode.getName(), new String[] { paramNode.getName() }, false);
children.add(new ParamInfo(paramNode, new CommandParamData(paramNode.getName(), false, enumData, mapCommandType(paramNode.getParser()), null, Collections.emptyList())));
} else {
// Get the existing enum
ParamInfo enumParamInfo = children.get(enumIndex);
// Extend the current list of enum values
String[] enumOptions = Arrays.copyOf(enumParamInfo.getParamData().getEnumData().getValues(), enumParamInfo.getParamData().getEnumData().getValues().length + 1);
enumOptions[enumOptions.length - 1] = paramNode.getName();
// Re-create the command using the updated values
CommandEnumData enumData = new CommandEnumData(enumParamInfo.getParamData().getEnumData().getName(), enumOptions, false);
children.set(enumIndex, new ParamInfo(enumParamInfo.getParamNode(), new CommandParamData(enumParamInfo.getParamData().getName(), false, enumData, enumParamInfo.getParamData().getType(), null, Collections.emptyList())));
}
}else{
// Put the non-enum param into the list
children.add(new ParamInfo(paramNode, new CommandParamData(paramNode.getName(), false, null, mapCommandType(paramNode.getParser()), null, Collections.emptyList())));
}
}
// Recursively build all child options
for (ParamInfo child : children) {
child.buildChildren(allNodes);
}
}
public List<CommandParamData[]> getTree() {
List<CommandParamData[]> treeParamData = new ArrayList<>();
for (ParamInfo child : children) {
// Get the tree from the child
List<CommandParamData[]> childTree = child.getTree();
// Un-pack the tree append the child node to it and push into the list
for (CommandParamData[] subchild : childTree) {
CommandParamData[] tmpTree = new ArrayList<CommandParamData>() {
{
add(child.getParamData());
addAll(Arrays.asList(subchild));
}
}.toArray(new CommandParamData[0]);
treeParamData.add(tmpTree);
}
// If we have no more child parameters just the child
if (childTree.size() == 0) {
treeParamData.add(new CommandParamData[] { child.getParamData() });
}
}
return treeParamData;
}
}
}