109 lines
6.7 KiB
Java
109 lines
6.7 KiB
Java
/*
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* This file is part of ViaLegacy - https://github.com/RaphiMC/ViaLegacy
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* Copyright (C) 2020-2024 RK_01/RaphiMC 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 net.raphimc.vialegacy.api;
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import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
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import com.viaversion.viaversion.api.protocol.version.VersionRange;
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import java.util.ArrayList;
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import java.util.List;
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public class LegacyProtocolVersion {
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public static final List<ProtocolVersion> PROTOCOLS = new ArrayList<>();
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// Pre Netty
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public static final ProtocolVersion c0_0_15a_1 = registerLegacy(-2 << 2 | 1, "c0.0.15a-1"); // this version has no protocol id
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public static final ProtocolVersion c0_0_16a_02 = registerLegacy(-3 << 2 | 1, "c0.0.16a-02");
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public static final ProtocolVersion c0_0_18a_02 = registerLegacy(-4 << 2 | 1, "c0.0.18a-02");
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public static final ProtocolVersion c0_0_19a_06 = registerLegacy(-5 << 2 | 1, "c0.0.19a-06");
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public static final ProtocolVersion c0_0_20ac0_27 = registerLegacy(-6 << 2 | 1, "c0.0.20a-c0.27");
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public static final ProtocolVersion c0_28toc0_30 = registerLegacy(-7 << 2 | 1, "c0.28-c0.30");
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public static final ProtocolVersion a1_0_15 = registerLegacy(-13 << 2 | 1, "a1.0.15");
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public static final ProtocolVersion a1_0_16toa1_0_16_2 = registerLegacy(-14 << 2 | 1, "a1.0.16-a1.0.16.2", new VersionRange("a1.0.16", 0, 2));
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public static final ProtocolVersion a1_0_17toa1_0_17_4 = registerLegacy(-27 << 2, "a1.0.17-a1.0.17.4", new VersionRange("a1.0.17", 0, 4));
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public static final ProtocolVersion a1_1_0toa1_1_2_1 = registerLegacy(-2 << 2, "a1.1.0-a1.1.2.1", new VersionRange("a1.1", 0, 2));
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public static final ProtocolVersion a1_2_0toa1_2_1_1 = registerLegacy(-3 << 2, "a1.2.0-a1.2.1.1", new VersionRange("a1.2", 0, 1));
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public static final ProtocolVersion a1_2_2 = registerLegacy(-4 << 2, "a1.2.2");
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public static final ProtocolVersion a1_2_3toa1_2_3_4 = registerLegacy(-5 << 2, "a1.2.3-a1.2.3.4", new VersionRange("a1.2.3", 0, 4));
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public static final ProtocolVersion a1_2_3_5toa1_2_6 = registerLegacy(-6 << 2, "a1.2.3.5-a1.2.6", new VersionRange("a1.2.3", 5, 6));
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public static final ProtocolVersion b1_0tob1_1_1 = registerLegacy(-7 << 2, "b1.0-b1.1.1", new VersionRange("b1.0", 0, 1));
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public static final ProtocolVersion b1_1_2 = registerLegacy(-8 << 2 | 1, "b1.1.2"); // yes its id 8 and incompatible with b1.2-b1.2.2. Thanks mojank
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public static final ProtocolVersion b1_2_0tob1_2_2 = registerLegacy(-8 << 2, "b1.2-b1.2.2", new VersionRange("b1.2", 0, 2));
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public static final ProtocolVersion b1_3tob1_3_1 = registerLegacy(-9 << 2, "b1.3-b1.3.1", new VersionRange("b1.3", 0, 1));
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public static final ProtocolVersion b1_4tob1_4_1 = registerLegacy(-10 << 2, "b1.4-b1.4.1", new VersionRange("b1.4", 0, 1));
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public static final ProtocolVersion b1_5tob1_5_2 = registerLegacy(-11 << 2, "b1.5-b1.5.2", new VersionRange("b1.5", 0, 2));
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public static final ProtocolVersion b1_6tob1_6_6 = registerLegacy(-13 << 2, "b1.6-b1.6.6", new VersionRange("b1.6", 0, 6));
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public static final ProtocolVersion b1_7tob1_7_3 = registerLegacy(-14 << 2, "b1.7-b1.7.3", new VersionRange("b1.7", 0, 3));
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public static final ProtocolVersion b1_8tob1_8_1 = registerLegacy(-17 << 2, "b1.8-b1.8.1", new VersionRange("b1.8", 0, 1));
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public static final ProtocolVersion r1_0_0tor1_0_1 = registerLegacy(-22 << 2, "1.0.0-1.0.1", new VersionRange("1.0", 0, 1));
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public static final ProtocolVersion r1_1 = registerLegacy(-23 << 2, "1.1");
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public static final ProtocolVersion r1_2_1tor1_2_3 = registerLegacy(-28 << 2, "1.2.1-1.2.3", new VersionRange("1.2", 1, 3));
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public static final ProtocolVersion r1_2_4tor1_2_5 = registerLegacy(-29 << 2, "1.2.4-1.2.5", new VersionRange("1.2", 4, 5));
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public static final ProtocolVersion r1_3_1tor1_3_2 = registerLegacy(-39 << 2, "1.3.1-1.3.2", new VersionRange("1.3", 1, 2));
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public static final ProtocolVersion r1_4_2 = registerLegacy(-47 << 2, "1.4.2");
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public static final ProtocolVersion r1_4_4tor1_4_5 = registerLegacy(-49 << 2, "1.4.4-1.4.5", new VersionRange("1.4", 4, 5));
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public static final ProtocolVersion r1_4_6tor1_4_7 = registerLegacy(-51 << 2, "1.4.6-1.4.7", new VersionRange("1.4", 6, 7));
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public static final ProtocolVersion r1_5tor1_5_1 = registerLegacy(-60 << 2, "1.5-1.5.1", new VersionRange("1.5", 0, 1));
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public static final ProtocolVersion r1_5_2 = registerLegacy(-61 << 2, "1.5.2");
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public static final ProtocolVersion r1_6_1 = registerLegacy(-73 << 2, "1.6.1");
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public static final ProtocolVersion r1_6_2 = registerLegacy(-74 << 2, "1.6.2");
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public static final ProtocolVersion r1_6_4 = registerLegacy(-78 << 2, "1.6.4");
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// Special protocols
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public static final ProtocolVersion c0_30cpe = registerLegacy(-7 << 2 | 2, "c0.30 CPE");
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public static int protocolCompare(int a, int b) {
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if (a >= 0 || b >= 0) {
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// If at least one is modern, then a straight compare works fine.
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return a - b;
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}
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// Both are legacy
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final int baseProtocolA = getRealProtocolVersion(a);
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final int baseProtocolB = getRealProtocolVersion(b);
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if (baseProtocolA != baseProtocolB) {
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return baseProtocolA - baseProtocolB;
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}
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// They're either the same version or one where the protocol overlaps.
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final int discriminatorA = a & 3;
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final int discriminatorB = b & 3;
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return discriminatorB - discriminatorA; // Higher discriminator means older version
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}
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public static int getRealProtocolVersion(final int protocolVersion) {
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if (protocolVersion >= 0) {
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return protocolVersion;
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}
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return -(protocolVersion >> 2);
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}
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private static ProtocolVersion registerLegacy(final int version, final String name) {
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return registerLegacy(version, name, null);
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}
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private static ProtocolVersion registerLegacy(final int version, final String name, final VersionRange versionRange) {
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final ProtocolVersion protocolVersion = ProtocolVersion.register(version, name, versionRange);
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PROTOCOLS.add(protocolVersion);
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return protocolVersion;
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}
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}
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