95 lines
4.1 KiB
Java
95 lines
4.1 KiB
Java
/*
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* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
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* Copyright (C) 2016-2021 ViaVersion and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the 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,
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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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU 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.viaversion.viaversion.protocols.protocol1_13to1_12_2.providers;
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import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
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import com.github.steveice10.opennbt.tag.builtin.Tag;
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import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
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import com.viaversion.viaversion.api.Via;
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import com.viaversion.viaversion.api.connection.UserConnection;
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import com.viaversion.viaversion.api.minecraft.Position;
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import com.viaversion.viaversion.api.platform.providers.Provider;
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import com.viaversion.viaversion.api.type.Type;
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import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.Protocol1_13To1_12_2;
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import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.providers.blockentities.BannerHandler;
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import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.providers.blockentities.BedHandler;
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import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.providers.blockentities.CommandBlockHandler;
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import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.providers.blockentities.FlowerPotHandler;
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import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.providers.blockentities.SkullHandler;
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import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.providers.blockentities.SpawnerHandler;
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import java.util.HashMap;
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import java.util.Map;
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public class BlockEntityProvider implements Provider {
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private final Map<String, BlockEntityHandler> handlers = new HashMap<>();
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public BlockEntityProvider() {
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handlers.put("minecraft:flower_pot", new FlowerPotHandler());
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handlers.put("minecraft:bed", new BedHandler());
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handlers.put("minecraft:banner", new BannerHandler());
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handlers.put("minecraft:skull", new SkullHandler());
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handlers.put("minecraft:mob_spawner", new SpawnerHandler());
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handlers.put("minecraft:command_block", new CommandBlockHandler());
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}
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/**
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* Transforms the BlockEntities to blocks!
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*
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* @param user UserConnection instance
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* @param position Block Position - WARNING: Position is null when called from a chunk
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* @param tag BlockEntity NBT
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* @param sendUpdate send a block change update
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* @return new block id
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* @throws Exception Gotta throw that exception
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*/
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public int transform(UserConnection user, Position position, CompoundTag tag, boolean sendUpdate) throws Exception {
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Tag idTag = tag.get("id");
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if (idTag == null) return -1;
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String id = (String) idTag.getValue();
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BlockEntityHandler handler = handlers.get(id);
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if (handler == null) {
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if (Via.getManager().isDebug()) {
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Via.getPlatform().getLogger().warning("Unhandled BlockEntity " + id + " full tag: " + tag);
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}
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return -1;
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}
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int newBlock = handler.transform(user, tag);
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if (sendUpdate && newBlock != -1) {
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sendBlockChange(user, position, newBlock);
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}
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return newBlock;
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}
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private void sendBlockChange(UserConnection user, Position position, int blockId) throws Exception {
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PacketWrapper wrapper = PacketWrapper.create(0x0B, null, user);
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wrapper.write(Type.POSITION, position);
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wrapper.write(Type.VAR_INT, blockId);
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wrapper.send(Protocol1_13To1_12_2.class, true, true);
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}
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public interface BlockEntityHandler {
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int transform(UserConnection user, CompoundTag tag);
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}
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}
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