From 6ea0fcabc304c601563a7cc9c904fb5373954b4e Mon Sep 17 00:00:00 2001 From: DoctorMacc Date: Wed, 8 Apr 2020 17:42:36 -0400 Subject: [PATCH] Sign editing --- .../BedrockBlockEntityDataTranslator.java | 101 ++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 connector/src/main/java/org/geysermc/connector/network/translators/bedrock/BedrockBlockEntityDataTranslator.java diff --git a/connector/src/main/java/org/geysermc/connector/network/translators/bedrock/BedrockBlockEntityDataTranslator.java b/connector/src/main/java/org/geysermc/connector/network/translators/bedrock/BedrockBlockEntityDataTranslator.java new file mode 100644 index 000000000..4aeaafa58 --- /dev/null +++ b/connector/src/main/java/org/geysermc/connector/network/translators/bedrock/BedrockBlockEntityDataTranslator.java @@ -0,0 +1,101 @@ +/* + * Copyright (c) 2019 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.bedrock; + +import com.github.steveice10.mc.protocol.data.game.entity.metadata.Position; +import com.github.steveice10.mc.protocol.data.message.Message; +import com.github.steveice10.mc.protocol.packet.ingame.client.world.ClientUpdateSignPacket; +import com.nukkitx.math.vector.Vector3i; +import com.nukkitx.nbt.CompoundTagBuilder; +import com.nukkitx.nbt.tag.CompoundTag; +import com.nukkitx.nbt.tag.StringTag; +import com.nukkitx.protocol.bedrock.packet.BlockEntityDataPacket; + +import org.geysermc.connector.network.session.GeyserSession; +import org.geysermc.connector.network.translators.PacketTranslator; +import org.geysermc.connector.network.translators.Translator; +import org.geysermc.connector.network.translators.Translators; +import org.geysermc.connector.network.translators.block.entity.SignBlockEntityTranslator; +import org.geysermc.connector.utils.BlockEntityUtils; +import org.geysermc.connector.utils.MessageUtils; + +import java.util.HashMap; +import java.util.concurrent.TimeUnit; + +@Translator(packet = BlockEntityDataPacket.class) +public class BedrockBlockEntityDataTranslator extends PacketTranslator { + + // In case two people are editing signs at the same time this array holds the temporary messages to be sent + // Position -> Message being held + protected static HashMap lastMessages = new HashMap<>(); + + @Override + public void translate(BlockEntityDataPacket packet, GeyserSession session) { + if (packet.getData() instanceof CompoundTag) { + CompoundTag tag = (CompoundTag) packet.getData(); + if (tag.getString("id").equals("Sign")) { + // This is the reason why this all works - Bedrock sends packets every time you update the sign, Java only wants the final packet + // But Bedrock sends one final packet when you're done editing the sign, which should be equal to the last message since there's no edits + // So if the latest update does not match the last cached update then it's still being edited + Position pos = new Position(tag.getInt("x"), tag.getInt("y"), tag.getInt("z")); + if (!tag.getString("Text").equals(lastMessages.get(pos))) { + lastMessages.put(pos, tag.getString("Text")); + return; + } + // Otherwise the two messages are identical and we can get to work deconstructing + StringBuilder newMessage = new StringBuilder(); + // While Bedrock's sign lines are one string, Java's is an array of each line + // (Initialized all with empty strings because it complains about null) + String[] lines = new String[] {"", "", "", ""}; + int iterator = 0; + // This converts the message into the array'd message Java wants + for (char character : tag.getString("Text").toCharArray()) { + // If we get a return in Bedrock, that signals to use the next line. + if (character == '\n') { + lines[iterator] = newMessage.toString(); + iterator++; + // Bedrock, for whatever reason, can hold a message out of bounds + // We don't care about that so we discard that + if (iterator > lines.length - 1) { + break; + } + newMessage = new StringBuilder(); + } else newMessage.append(character); + } + // Put the final line on since it isn't done in the for loop + if (iterator < lines.length) lines[iterator] = newMessage.toString(); + ClientUpdateSignPacket clientUpdateSignPacket = new ClientUpdateSignPacket(pos, lines); + session.getDownstream().getSession().send(clientUpdateSignPacket); + //TODO (potentionally): originally I was going to update the sign blocks so Bedrock and Java users would match visually + // However Java can still store a lot per-line and visuals are still messed up so that doesn't work + + // We remove the sign position from map to indicate there is no work-in-progress sign + lastMessages.remove(pos); + } + } + + } +}