91 lines
3.5 KiB
Java
91 lines
3.5 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_9to1_8.providers;
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import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
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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.protocol.packet.PacketWrapper;
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import com.viaversion.viaversion.api.type.Type;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.ClientboundPackets1_9;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.Protocol1_9To1_8;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.storage.CommandBlockStorage;
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import com.viaversion.viaversion.protocols.protocol1_9to1_8.storage.EntityTracker1_9;
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import java.util.Optional;
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public class CommandBlockProvider implements Provider {
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public void addOrUpdateBlock(UserConnection user, Position position, CompoundTag tag) throws Exception {
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checkPermission(user);
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if (isEnabled())
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getStorage(user).addOrUpdateBlock(position, tag);
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}
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public Optional<CompoundTag> get(UserConnection user, Position position) throws Exception {
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checkPermission(user);
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if (isEnabled())
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return getStorage(user).getCommandBlock(position);
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return Optional.empty();
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}
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public void unloadChunk(UserConnection user, int x, int z) throws Exception {
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checkPermission(user);
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if (isEnabled())
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getStorage(user).unloadChunk(x, z);
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}
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private CommandBlockStorage getStorage(UserConnection connection) {
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return connection.get(CommandBlockStorage.class);
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}
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public void sendPermission(UserConnection user) throws Exception {
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if (!isEnabled())
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return;
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PacketWrapper wrapper = PacketWrapper.create(ClientboundPackets1_9.ENTITY_STATUS, null, user); // Entity status
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EntityTracker1_9 tracker = user.getEntityTracker(Protocol1_9To1_8.class);
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wrapper.write(Type.INT, tracker.getProvidedEntityId()); // Entity ID
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wrapper.write(Type.BYTE, (byte) 26); // Hardcoded op permission level
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wrapper.scheduleSend(Protocol1_9To1_8.class);
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user.get(CommandBlockStorage.class).setPermissions(true);
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}
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// Fix for Bungee since the join game is not sent after the first one
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private void checkPermission(UserConnection user) throws Exception {
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if (!isEnabled())
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return;
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CommandBlockStorage storage = getStorage(user);
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if (!storage.isPermissions()) {
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sendPermission(user);
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}
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}
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public boolean isEnabled() {
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return true;
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}
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public void unloadChunks(UserConnection userConnection) {
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if (isEnabled())
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getStorage(userConnection).unloadChunks();
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}
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}
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