140 lines
6.8 KiB
Java
140 lines
6.8 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_17to1_16_4.packets;
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import com.viaversion.viaversion.api.minecraft.item.Item;
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import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
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import com.viaversion.viaversion.api.protocol.remapper.PacketRemapper;
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import com.viaversion.viaversion.api.type.Type;
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import com.viaversion.viaversion.protocols.protocol1_16_2to1_16_1.ClientboundPackets1_16_2;
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import com.viaversion.viaversion.protocols.protocol1_16_2to1_16_1.ServerboundPackets1_16_2;
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import com.viaversion.viaversion.protocols.protocol1_16to1_15_2.data.RecipeRewriter1_16;
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import com.viaversion.viaversion.protocols.protocol1_17to1_16_4.ClientboundPackets1_17;
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import com.viaversion.viaversion.protocols.protocol1_17to1_16_4.Protocol1_17To1_16_4;
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import com.viaversion.viaversion.protocols.protocol1_17to1_16_4.ServerboundPackets1_17;
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import com.viaversion.viaversion.protocols.protocol1_17to1_16_4.storage.InventoryAcknowledgements;
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import com.viaversion.viaversion.rewriter.ItemRewriter;
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public class InventoryPackets extends ItemRewriter<Protocol1_17To1_16_4> {
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public InventoryPackets(Protocol1_17To1_16_4 protocol) {
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super(protocol);
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}
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@Override
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public void registerPackets() {
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registerSetCooldown(ClientboundPackets1_16_2.COOLDOWN);
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registerWindowItems(ClientboundPackets1_16_2.WINDOW_ITEMS, Type.FLAT_VAR_INT_ITEM_ARRAY);
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registerTradeList(ClientboundPackets1_16_2.TRADE_LIST, Type.FLAT_VAR_INT_ITEM);
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registerSetSlot(ClientboundPackets1_16_2.SET_SLOT, Type.FLAT_VAR_INT_ITEM);
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registerAdvancements(ClientboundPackets1_16_2.ADVANCEMENTS, Type.FLAT_VAR_INT_ITEM);
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registerEntityEquipmentArray(ClientboundPackets1_16_2.ENTITY_EQUIPMENT, Type.FLAT_VAR_INT_ITEM);
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registerSpawnParticle(ClientboundPackets1_16_2.SPAWN_PARTICLE, Type.FLAT_VAR_INT_ITEM, Type.DOUBLE);
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new RecipeRewriter1_16(protocol).registerDefaultHandler(ClientboundPackets1_16_2.DECLARE_RECIPES);
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registerCreativeInvAction(ServerboundPackets1_17.CREATIVE_INVENTORY_ACTION, Type.FLAT_VAR_INT_ITEM);
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protocol.registerServerbound(ServerboundPackets1_17.EDIT_BOOK, new PacketRemapper() {
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@Override
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public void registerMap() {
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handler(wrapper -> handleItemToServer(wrapper.passthrough(Type.FLAT_VAR_INT_ITEM)));
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}
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});
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protocol.registerServerbound(ServerboundPackets1_17.CLICK_WINDOW, new PacketRemapper() {
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@Override
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public void registerMap() {
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map(Type.UNSIGNED_BYTE); // Window Id
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map(Type.SHORT); // Slot
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map(Type.BYTE); // Button
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handler(wrapper -> wrapper.write(Type.SHORT, (short) 0)); // Action id - doesn't matter, as the sent out confirmation packet will be cancelled
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map(Type.VAR_INT); // Action
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handler(wrapper -> {
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// Affected items - throw them away!
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int length = wrapper.read(Type.VAR_INT);
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for (int i = 0; i < length; i++) {
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wrapper.read(Type.SHORT); // Slot
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wrapper.read(Type.FLAT_VAR_INT_ITEM);
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}
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// 1.17 clients send the then carried item, but 1.16 expects the clicked one
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Item item = wrapper.read(Type.FLAT_VAR_INT_ITEM);
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int action = wrapper.get(Type.VAR_INT, 0);
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if (action == 5) {
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// Quick craft (= dragging / mouse movement while clicking on an empty slot)
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// The server always expects an empty item here
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item = null;
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} else {
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// Use the item sent
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handleItemToServer(item);
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}
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wrapper.write(Type.FLAT_VAR_INT_ITEM, item);
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});
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}
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});
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protocol.registerClientbound(ClientboundPackets1_16_2.WINDOW_CONFIRMATION, null, new PacketRemapper() {
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@Override
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public void registerMap() {
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handler(wrapper -> {
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short inventoryId = wrapper.read(Type.UNSIGNED_BYTE);
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short confirmationId = wrapper.read(Type.SHORT);
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boolean accepted = wrapper.read(Type.BOOLEAN);
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if (!accepted) {
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// Use the new ping packet to replace the removed acknowledgement, extra bit for fast dismissal
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int id = (1 << 30) | (inventoryId << 16) | (confirmationId & 0xFFFF);
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wrapper.user().get(InventoryAcknowledgements.class).addId(id);
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PacketWrapper pingPacket = wrapper.create(ClientboundPackets1_17.PING);
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pingPacket.write(Type.INT, id);
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pingPacket.send(Protocol1_17To1_16_4.class);
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}
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wrapper.cancel();
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});
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}
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});
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// New pong packet
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protocol.registerServerbound(ServerboundPackets1_17.PONG, null, new PacketRemapper() {
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@Override
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public void registerMap() {
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handler(wrapper -> {
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int id = wrapper.read(Type.INT);
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// Check extra bit for fast dismissal
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if ((id & (1 << 30)) != 0 && wrapper.user().get(InventoryAcknowledgements.class).removeId(id)) {
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// Decode our requested inventory acknowledgement
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short inventoryId = (short) ((id >> 16) & 0xFF);
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short confirmationId = (short) (id & 0xFFFF);
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PacketWrapper packet = wrapper.create(ServerboundPackets1_16_2.WINDOW_CONFIRMATION);
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packet.write(Type.UNSIGNED_BYTE, inventoryId);
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packet.write(Type.SHORT, confirmationId);
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packet.write(Type.BYTE, (byte) 1); // Accept
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packet.sendToServer(Protocol1_17To1_16_4.class);
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}
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wrapper.cancel();
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});
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}
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});
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}
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}
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