351 lines
14 KiB
Java
351 lines
14 KiB
Java
/*
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* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
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* Copyright (C) 2016-2022 ViaVersion and contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package com.viaversion.viaversion.api.protocol.version;
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import com.google.common.base.Preconditions;
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import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
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import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
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import org.checkerframework.checker.nullness.qual.NonNull;
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import org.checkerframework.checker.nullness.qual.Nullable;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.LinkedHashSet;
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import java.util.List;
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import java.util.Set;
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public class ProtocolVersion {
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private static final Int2ObjectMap<ProtocolVersion> VERSIONS = new Int2ObjectOpenHashMap<>();
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private static final List<ProtocolVersion> VERSION_LIST = new ArrayList<>();
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// Before the Netty rewrite
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public static final ProtocolVersion v1_4_6 = register(51, "1.4.6/7", new VersionRange("1.4", 6, 7));
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public static final ProtocolVersion v1_5_1 = register(60, "1.5.1");
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public static final ProtocolVersion v1_5_2 = register(61, "1.5.2");
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public static final ProtocolVersion v_1_6_1 = register(73, "1.6.1");
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public static final ProtocolVersion v_1_6_2 = register(74, "1.6.2");
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public static final ProtocolVersion v_1_6_3 = register(77, "1.6.3");
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public static final ProtocolVersion v_1_6_4 = register(78, "1.6.4");
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// After the Netty rewrite
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public static final ProtocolVersion v1_7_1 = register(4, "1.7-1.7.5", new VersionRange("1.7", 0, 5));
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public static final ProtocolVersion v1_7_6 = register(5, "1.7.6-1.7.10", new VersionRange("1.7", 6, 10));
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public static final ProtocolVersion v1_8 = register(47, "1.8.x");
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public static final ProtocolVersion v1_9 = register(107, "1.9");
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public static final ProtocolVersion v1_9_1 = register(108, "1.9.1");
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public static final ProtocolVersion v1_9_2 = register(109, "1.9.2");
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public static final ProtocolVersion v1_9_3 = register(110, "1.9.3/4", new VersionRange("1.9", 3, 4));
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public static final ProtocolVersion v1_10 = register(210, "1.10.x");
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public static final ProtocolVersion v1_11 = register(315, "1.11");
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public static final ProtocolVersion v1_11_1 = register(316, "1.11.1/2", new VersionRange("1.11", 1, 2));
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public static final ProtocolVersion v1_12 = register(335, "1.12");
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public static final ProtocolVersion v1_12_1 = register(338, "1.12.1");
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public static final ProtocolVersion v1_12_2 = register(340, "1.12.2");
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public static final ProtocolVersion v1_13 = register(393, "1.13");
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public static final ProtocolVersion v1_13_1 = register(401, "1.13.1");
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public static final ProtocolVersion v1_13_2 = register(404, "1.13.2");
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public static final ProtocolVersion v1_14 = register(477, "1.14");
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public static final ProtocolVersion v1_14_1 = register(480, "1.14.1");
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public static final ProtocolVersion v1_14_2 = register(485, "1.14.2");
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public static final ProtocolVersion v1_14_3 = register(490, "1.14.3");
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public static final ProtocolVersion v1_14_4 = register(498, "1.14.4");
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public static final ProtocolVersion v1_15 = register(573, "1.15");
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public static final ProtocolVersion v1_15_1 = register(575, "1.15.1");
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public static final ProtocolVersion v1_15_2 = register(578, "1.15.2");
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public static final ProtocolVersion v1_16 = register(735, "1.16");
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public static final ProtocolVersion v1_16_1 = register(736, "1.16.1");
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public static final ProtocolVersion v1_16_2 = register(751, "1.16.2");
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public static final ProtocolVersion v1_16_3 = register(753, "1.16.3");
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public static final ProtocolVersion v1_16_4 = register(754, "1.16.4/5", new VersionRange("1.16", 4, 5));
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public static final ProtocolVersion v1_17 = register(755, "1.17");
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public static final ProtocolVersion v1_17_1 = register(756, "1.17.1");
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public static final ProtocolVersion v1_18 = register(757, "1.18/1.18.1", new VersionRange("1.18", 0, 1));
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public static final ProtocolVersion v1_18_2 = register(758, "1.18.2");
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public static final ProtocolVersion unknown = register(-1, "UNKNOWN");
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public static ProtocolVersion register(int version, String name) {
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return register(version, -1, name);
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}
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public static ProtocolVersion register(int version, int snapshotVersion, String name) {
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return register(version, snapshotVersion, name, null);
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}
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public static ProtocolVersion register(int version, String name, @Nullable VersionRange versionRange) {
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return register(version, -1, name, versionRange);
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}
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/**
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* Registers a protocol version.
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*
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* @param version release protocol version
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* @param snapshotVersion snapshot protocol version, or -1 if not a snapshot
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* @param name version name
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* @param versionRange range of versions that are supported by this protocol version, null if not a range
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* @return registered {@link ProtocolVersion}
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*/
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public static ProtocolVersion register(int version, int snapshotVersion, String name, @Nullable VersionRange versionRange) {
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ProtocolVersion protocol = new ProtocolVersion(version, snapshotVersion, name, versionRange);
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VERSION_LIST.add(protocol);
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VERSIONS.put(protocol.getVersion(), protocol);
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if (protocol.isSnapshot()) {
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VERSIONS.put(protocol.getFullSnapshotVersion(), protocol);
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}
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return protocol;
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}
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/**
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* Returns whether a protocol with the given protocol version is registered.
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*
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* @param version protocol version
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* @return true if this protocol version has been registered
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*/
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public static boolean isRegistered(int version) {
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return VERSIONS.containsKey(version);
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}
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/**
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* Returns a {@link ProtocolVersion} instance, even if this protocol version
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* has not been registered. See {@link #isRegistered(int)} berorehand or {@link #isKnown()}.
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*
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* @param version protocol version
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* @return registered or unknown {@link ProtocolVersion}
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*/
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public static @NonNull ProtocolVersion getProtocol(int version) {
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ProtocolVersion protocolVersion = VERSIONS.get(version);
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if (protocolVersion != null) {
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return protocolVersion;
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} else {
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return new ProtocolVersion(version, "Unknown (" + version + ")");
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}
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}
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/**
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* Returns the internal index of the stored protocol version.
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*
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* @param version protocol version instance
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* @return internal index of the stored protocol version
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*/
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public static int getIndex(ProtocolVersion version) {
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return VERSION_LIST.indexOf(version);
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}
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/**
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* Returns an immutable list of registered protocol versions.
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*
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* @return immutable list of registered protocol versions
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*/
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public static List<ProtocolVersion> getProtocols() {
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return Collections.unmodifiableList(VERSION_LIST);
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}
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/**
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* Returns the registered protocol version if present, else null.
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* This accepts the actual registered names (like "1.16.4/5") as well as
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* included versions for version ranges and wildcards.
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*
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* @param protocol version name, e.g. "1.16.3"
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* @return registered protocol version if present, else null
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*/
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public static @Nullable ProtocolVersion getClosest(String protocol) {
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for (ProtocolVersion version : VERSIONS.values()) {
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String name = version.getName();
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if (name.equals(protocol)) {
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return version;
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}
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if (version.isVersionWildcard()) {
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// Test against the major version with and without a minor version
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String majorVersion = name.substring(0, name.length() - 2);
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if (majorVersion.equals(protocol) || (protocol.startsWith(name.substring(0, name.length() - 1)))) {
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return version;
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}
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} else if (version.isRange()) {
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if (version.getIncludedVersions().contains(protocol)) {
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return version;
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}
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}
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}
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return null;
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}
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private final int version;
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private final int snapshotVersion;
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private final String name;
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private final boolean versionWildcard;
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private final Set<String> includedVersions;
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/**
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* @param version protocol version
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* @param name version name
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*/
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public ProtocolVersion(int version, String name) {
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this(version, -1, name, null);
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}
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/**
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* @param version protocol version
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* @param snapshotVersion actual snapshot protocol version, -1 if not a snapshot
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* @param name version name
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* @param versionRange range of versions that are supported by this protocol version, null if not a range
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*/
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public ProtocolVersion(int version, int snapshotVersion, String name, @Nullable VersionRange versionRange) {
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this.version = version;
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this.snapshotVersion = snapshotVersion;
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this.name = name;
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this.versionWildcard = name.endsWith(".x");
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Preconditions.checkArgument(!versionWildcard || versionRange == null, "A version cannot be a wildcard and a range at the same time!");
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if (versionRange != null) {
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includedVersions = new LinkedHashSet<>();
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for (int i = versionRange.rangeFrom(); i <= versionRange.rangeTo(); i++) {
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if (i == 0) {
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includedVersions.add(versionRange.baseVersion()); // Keep both the base version and with ".0" appended
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}
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includedVersions.add(versionRange.baseVersion() + "." + i);
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}
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} else {
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includedVersions = Collections.singleton(name);
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}
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}
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/**
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* Returns the release protocol version.
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*
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* @return release version
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*/
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public int getVersion() {
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return version;
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}
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/**
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* Returns the snapshot protocol version without the snapshot indicator bit if this is a snapshot protocol version.
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*
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* @return snapshot protocol version without the snapshot indicator bit
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* @throws IllegalArgumentException if the version if not a snapshot version
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* @see #isSnapshot()
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*/
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public int getSnapshotVersion() {
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Preconditions.checkArgument(isSnapshot());
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return snapshotVersion;
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}
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/**
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* Returns the snapshot protocol version with the snapshot indicator bit if this is a snapshot protocol version.
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*
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* @return snapshot protocol version with the snapshot indicator bit
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* @throws IllegalArgumentException if the version if not a snapshot version
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* @see #isSnapshot()
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*/
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public int getFullSnapshotVersion() {
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Preconditions.checkArgument(isSnapshot());
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return (1 << 30) | snapshotVersion; // Bit indicating snapshot versions
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}
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/**
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* Returns the release version if release, snapshot version (with the snapshot indicator bit) if snapshot.
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*
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* @return release version if release, snapshot version (with the snapshot indicator bit) if snapshot
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*/
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public int getOriginalVersion() {
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return snapshotVersion == -1 ? version : ((1 << 30) | snapshotVersion);
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}
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/**
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* Returns whether the protocol is set. Should only be unknown for unregistered protocols returned by {@link #getProtocol(int)}.
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*
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* @return true if the protocol is set
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*/
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public boolean isKnown() {
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return version != -1;
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}
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/**
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* Returns whether the protocol includes a range of versions (but not an entire major version range), for example 1.7-1.7.5.
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*
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* @return true if the protocol includes a range of versions
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* @see #getIncludedVersions()
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*/
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public boolean isRange() {
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return includedVersions.size() != 1;
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}
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/**
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* Returns an immutable set of all included versions if the protocol is a version range.
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* If the protocol only includes a single Minecraft version or the entire major version as a wildcard ({@link #isVersionWildcard()}),
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* the set will only contain the string given in {@link #getName()}.
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*
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* @return immutable set of all included versions if the protocol is a version range
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* @see #isRange()
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*/
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public Set<String> getIncludedVersions() {
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return Collections.unmodifiableSet(includedVersions);
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}
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/**
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* Returns whether the protocol includes an entire major version range (for example 1.8.x).
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*
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* @return true if the protocol includes an entire major version range
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*/
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public boolean isVersionWildcard() {
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return versionWildcard;
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}
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/**
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* Returns the version name.
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*
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* @return version name
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*/
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public String getName() {
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return name;
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}
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/**
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* Returns whether this represents a snapshot version.
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*
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* @return true if this represents a snapshot version, false otherwise
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*/
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public boolean isSnapshot() {
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return snapshotVersion != -1;
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) return true;
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if (o == null || getClass() != o.getClass()) return false;
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ProtocolVersion that = (ProtocolVersion) o;
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return version == that.version;
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}
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@Override
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public int hashCode() {
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return version;
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}
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@Override
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public String toString() {
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return String.format("%s (%d)", this.name, this.version);
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}
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}
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