222 lines
8.6 KiB
C#
222 lines
8.6 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Collections.Immutable;
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using System.IO;
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using System.Text;
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namespace AnotherReplayReader.ReplayFile
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{
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internal static class RA3Commands
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{
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private interface IArgumentReader
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{
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object Read(BinaryReader reader, int count);
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}
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private sealed class ArgumentReader<T> : IArgumentReader
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{
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private readonly Func<BinaryReader, T> _reader;
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public ArgumentReader(Func<BinaryReader, T> reader) => _reader = reader;
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public object Read(BinaryReader reader, int count)
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{
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if (count == 1)
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{
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return _reader(reader)!;
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}
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var result = new T[count];
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for (int i = 0; i < count; i++)
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{
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result[i] = _reader(reader);
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}
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return result;
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}
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}
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private static readonly Dictionary<CommandArgumentType, IArgumentReader> _readers = new()
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{
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[CommandArgumentType.Int32] = new ArgumentReader<int>(r => r.ReadInt32()),
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[CommandArgumentType.Float32] = new ArgumentReader<float>(r => r.ReadSingle()),
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[CommandArgumentType.Bool] = new ArgumentReader<bool>(r => r.ReadByte() != 0),
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[CommandArgumentType.UInt16] = new ArgumentReader<ushort>(r => r.ReadUInt16()),
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[CommandArgumentType.UInt32] = new ArgumentReader<uint>(r => r.ReadUInt32()),
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[CommandArgumentType.UInt32_2] = new ArgumentReader<uint>(r => r.ReadUInt32()),
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[CommandArgumentType.ObjectId] = new ArgumentReader<uint>(r => r.ReadUInt32()),
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[CommandArgumentType.ObjectId_2] = new ArgumentReader<uint>(r => r.ReadUInt32()),
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[CommandArgumentType.Vector3] = new ArgumentReader<Vector3>(ReadVector3),
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[CommandArgumentType.AssetId] = new ArgumentReader<AssetId>(ReadAssetId),
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[CommandArgumentType.AsciiString] = new ArgumentReader<string>(r => ReadString(r, CommandArgumentType.AsciiString)),
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[CommandArgumentType.UnicodeString] = new ArgumentReader<string>(r => ReadString(r, CommandArgumentType.UnicodeString)),
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};
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private static readonly Dictionary<int, string> _commandNames;
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public static ImmutableArray<int> UnknownCommands { get; } = new[]
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{
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0x1FD, // unk
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0x25F, // unk
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}.ToImmutableArray();
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public static ImmutableArray<int> AutoCommands { get; } = new[]
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{
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0x1,
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0x221, // 3 seconds heartbeat
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0x233, // uuid
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0x234, // uuid
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0x235, // player info
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0x237, // indeterminate autogen
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0x247, // 5th frame auto gen
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0x252, // another player quits
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}.ToImmutableArray();
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static RA3Commands()
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{
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_commandNames = new()
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{
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[0x1] = "[游戏结束]", // 1
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[0x1F5] = "选择单位", // 501
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[0x1F6] = "选择相同单位（W）", // 502
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[0x1F8] = "取消选择", // 504
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[0x1F9] = "从选择中移除单位", // 505
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[0x1FA] = "创建编队", // 506
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[0x1FB] = "选择编队", // 507
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[0x1FC] = "将编队加入选择", // 508
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[0x1FD] = "（未知指令 0x1FD）", // 509
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[0x1FE] = "释放特殊能力（无目标）", // 510
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[0x1FF] = "释放特殊能力（指定位置）", // 511
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[0x200] = "释放特殊能力（指定位置和角度）", // 512
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[0x201] = "释放特殊能力（指定目标）", // 513
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[0x202] = "设置集结点", // 514
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[0x203] = "开始升级", // 515
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[0x204] = "暂停/中止升级", // 516
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[0x205] = "开始出兵", // 517
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[0x206] = "暂停/取消出兵", // 518
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[0x207] = "开始建造", // 519
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[0x208] = "暂停/取消建造", // 520
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[0x209] = "摆放建筑", // 521
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[0x20A] = "出售建筑", // 522
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// 523
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[0x20C] = "从进驻的建筑撤出（？）", // 524
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[0x20D] = "集火攻击", // 525
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[0x20E] = "强制攻击单位（Ctrl）", // 526
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[0x20F] = "强制攻击地板（Ctrl）", // 527
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[0x210] = "进驻建筑", // 528
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// 529
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[0x212] = "命令矿车交矿", // 530
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// 531
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[0x214] = "移动", // 532
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[0x215] = "行进攻击（A）", // 533
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[0x216] = "强制移动/碾压（G）", // 534
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// 535
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// 536
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// 537
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[0x21A] = "停止（S）", // 538
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[0x21B] = "散开（X）", // 539
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// 0x21E 542 有可能是 AI 信标相关的？
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[0x221] = "[游戏每3秒自动产生的检测不同步指令]", // 545
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[0x228] = "开始维修建筑", // 552
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[0x229] = "停止维修建筑", // 553
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[0x22A] = "选择所有单位（Q）", // 554
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// 555
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[0x22C] = "队形操作（左右键）", // 556
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// 557
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[0x22E] = "切换姿态（警戒/侵略/固守/停火模式）", // 558
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[0x22F] = "路径点模式/计划模式（Alt）", // 559
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// 560
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// 561
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[0x232] = "释放特殊能力（一个或多个目标）", // 562
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[0x233] = "[游戏自动生成的UUID指令]", // 563
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[0x234] = "[游戏自动产生的UUID]", // 564
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[0x235] = "[玩家信息（？）]", // 565
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[0x236] = "倒车（D）", // 566
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[0x237] = "[游戏不定期自动产生的指令]", // 567
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[0x247] = "[游戏在第五帧自动产生的指令]", // 583
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[0x248] = "让矿车去采矿", // 584
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[0x24B] = "信标", // 587
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[0x24C] = "删除信标", // 588
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[0x24D] = "在信标里输入文字", // 589
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[0x24E] = "选择协议", // 590
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[0x252] = "[其他玩家主动退出游戏]", // 594
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[0x25F] = "（未知指令 0x25F）", // 607
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};
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}
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public static List<CommandArgumentEntry> ReadCommandData(this BinaryReader reader)
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{
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var list = new List<CommandArgumentEntry>();
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while (true)
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{
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byte head = reader.ReadByte();
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if (head == 0xFF)
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break;
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int count = (head >> 4) + 1;
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var type = (CommandArgumentType)(head & 0xF);
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var value = _readers[type].Read(reader, count);
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list.Add(new CommandArgumentEntry(type, value, count));
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}
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return list;
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}
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public static bool IsUnknownCommand(int commandId)
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{
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return !_commandNames.ContainsKey(commandId);
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}
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public static string GetCommandName(int commandId)
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{
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return _commandNames.TryGetValue(commandId, out var storedName)
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? storedName
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: $"（未知指令 0x{commandId:X2}）";
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}
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private static AssetId ReadAssetId(BinaryReader reader)
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{
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var version = reader.ReadByte();
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var typeId = reader.ReadUInt32();
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var instanceId = reader.ReadUInt32();
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return new(TypeId: typeId, InstanceId: instanceId);
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}
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private static Vector3 ReadVector3(BinaryReader reader)
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{
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var x = reader.ReadSingle();
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var y = reader.ReadSingle();
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var z = reader.ReadSingle();
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return new(X: x, Y: y, Z: z);
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}
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private static string ReadString(BinaryReader current, CommandArgumentType type)
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{
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var length = (int)current.ReadByte();
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if (length == 0xFF)
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{
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length = current.ReadInt32();
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}
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// read byte string or wchar_t string based on T type
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switch (type)
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{
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case CommandArgumentType.AsciiString:
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return Encoding.UTF8.GetString(current.ReadBytes(length));
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case CommandArgumentType.UnicodeString:
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return Encoding.Unicode.GetString(current.ReadBytes(length * 2));
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}
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throw new InvalidDataException($"Invalid string type {type}");
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}
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}
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}
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