APM!

AnotherReplayReader.csproj

@@ -34,6 +34,7 @@
     <PackageReference Include="ILMerge" Version="3.0.41" />
     <PackageReference Include="ILMerge.MSBuild.Task" Version="1.0.7" />
     <PackageReference Include="NPinyin.Core" Version="3.0.0" />
+    <PackageReference Include="OxyPlot.Wpf" Version="2.1.0" />
     <PackageReference Include="Pfim" Version="0.10.1" />
     <PackageReference Include="System.Collections.Immutable" Version="5.0.0" />
     <PackageReference Include="System.Text.Json" Version="5.0.2" />

Apm/ApmPlotter.cs

@@ -0,0 +1,236 @@
+using AnotherReplayReader.ReplayFile;
+using OxyPlot;
+using OxyPlot.Axes;
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using System.Linq;
+
+namespace AnotherReplayReader.Apm
+{
+    public class ApmPlotterFilterOptions
+    {
+        public bool CountUnknowns { get; }
+        public bool CountAutos { get; }
+        public bool CountClicks { get; }
+
+        public ApmPlotterFilterOptions(bool countUnknowns, bool countAutos, bool countClicks)
+        {
+            CountUnknowns = countUnknowns;
+            CountAutos = countAutos;
+            CountClicks = countClicks;
+        }
+
+        public bool ShouldSkip(byte command)
+        {
+            if (!CountUnknowns && ApmPlotter.IsUnknown(command))
+            {
+                return true;
+            }
+            if (!CountAutos && ApmPlotter.IsAuto(command))
+            {
+                return true;
+            }
+            if (!CountClicks && ApmPlotter.IsClick(command))
+            {
+                return true;
+            }
+            return false;
+        }
+    }
+
+    internal class ApmPlotter
+    {
+        private static readonly ConcurrentDictionary<byte, byte> UnknownCommands;
+        private static readonly ConcurrentDictionary<byte, byte> AutoCommands;
+        private readonly ImmutableArray<(TimeSpan, ImmutableArray<CommandChunk>)> _commands;
+
+        public Replay Replay { get; }
+        public ImmutableArray<Player> Players { get; }
+        public ImmutableArray<TimeSpan> PlayerLifes { get; }
+        public ImmutableArray<TimeSpan> StricterPlayerLifes { get; }
+        public TimeSpan ReplayLength { get; }
+
+        static ApmPlotter()
+        {
+            static KeyValuePair<byte, byte> Create(byte x) => new(x, default);
+            UnknownCommands = new(RA3Commands.UnknownCommands.Select(Create));
+            AutoCommands = new(RA3Commands.AutoCommands.Select(Create));
+        }
+
+        public ApmPlotter(Replay replay)
+        {
+            if (replay.Body is not { } body)
+            {
+                throw new InvalidOperationException("Replay must be fully parsed!");
+            }
+
+            Replay = replay;
+
+            // player list without post Commentator
+            Players = (replay.Players.Last().PlayerName == Replay.PostCommentator
+                ? replay.Players.Take(replay.Players.Length - 1)
+                : replay.Players).ToImmutableArray();
+
+            // get all commands
+            IEnumerable<CommandChunk> Filter(ReplayChunk chunk)
+            {
+                foreach (var command in CommandChunk.Parse(chunk))
+                {
+                    if (command.PlayerIndex >= Players.Length)
+                    {
+                        Debug.Instance.DebugMessage += $"Unknown command with invalid player index: {command}\r\n";
+                        continue;
+                    }
+                    yield return command;
+                }
+            }
+            var query = from chunk in body
+                        where chunk.Type is 1
+                        select (chunk.Time, Filter(chunk).ToImmutableArray());
+            _commands = query.ToImmutableArray();
+
+            var playerLifes = new TimeSpan[Players.Length];
+            var threeSeconds = TimeSpan.FromSeconds(3);
+            var stricterLifes = new TimeSpan[Players.Length];
+            foreach (var (time, commands) in _commands)
+            {
+                var estimatedTime = time + threeSeconds;
+                foreach (var command in commands)
+                {
+                    var commandId = command.CommandId;
+                    var playerIndex = command.PlayerIndex;
+                    if (commandId == 0x21)
+                    {
+                        if (playerLifes[playerIndex] < estimatedTime)
+                        {
+                            playerLifes[playerIndex] = estimatedTime;
+                        }
+                    }
+                    else if (!IsUnknown(commandId) && !IsAuto(commandId))
+                    {
+                        if (stricterLifes[playerIndex] < estimatedTime)
+                        {
+                            stricterLifes[playerIndex] = estimatedTime;
+                        }
+                    }
+                }
+            }
+            PlayerLifes = playerLifes.ToImmutableArray();
+            StricterPlayerLifes = stricterLifes.ToImmutableArray();
+            ReplayLength = replay.Footer?.ReplayLength ?? PlayerLifes.Max();
+        }
+
+        public DataPoint[][] GetPoints(TimeSpan resolution, ApmPlotterFilterOptions options)
+        {
+            var lists = Players
+                .Select(x => new List<int> { 0 })
+                .ToArray();
+            var currentTime = TimeSpan.Zero;
+            var currentIndex = 0;
+            foreach (var (time, commands) in _commands)
+            {
+                while (time >= currentTime + resolution)
+                {
+                    currentTime += resolution;
+                    ++currentIndex;
+                }
+                foreach (var command in commands)
+                {
+                    if (options.ShouldSkip(command.CommandId))
+                    {
+                        continue;
+                    }
+                    var list = lists[command.PlayerIndex];
+                    var gap = currentIndex - list.Count;
+                    if (gap >= 0)
+                    {
+                        list.AddRange(Enumerable.Repeat(0, gap + 1));
+                    }
+                    ++lists[command.PlayerIndex][currentIndex];
+                }
+            }
+            var apmMultiplier = 1 / resolution.TotalMinutes;
+            DataPoint Create(int v, int i) => new(TimeSpanAxis.ToDouble(resolution) * i,
+                                                  v * apmMultiplier);
+            return lists.Select(l => l.Select(Create).ToArray()).ToArray();
+        }
+
+        public double[] CalculateAverageApm(ApmPlotterFilterOptions options)
+        {
+            var apm = new double[Players.Length];
+            foreach (var (_, commands) in _commands)
+            {
+                foreach (var command in commands)
+                {
+                    if (options.ShouldSkip(command.CommandId))
+                    {
+                        continue;
+                    }
+                    ++apm[command.PlayerIndex];
+                }
+            }
+            for (var i = 0; i < apm.Length; ++i)
+            {
+                apm[i] /= PlayerLifes[i].TotalMinutes;
+            }
+            return apm;
+        }
+
+        public static double[] CalculateInstantApm(DataPoint[][] data, TimeSpan begin, TimeSpan end)
+        {
+            return data.Select(playerData =>
+            {
+                return playerData
+                    .SkipWhile(p => TimeSpanAxis.ToTimeSpan(p.X) < begin)
+                    .TakeWhile(p => TimeSpanAxis.ToTimeSpan(p.X) < end)
+                    .Average(p => new double?(p.Y)) ?? double.NaN;
+            }).ToArray();
+        }
+
+        public Dictionary<byte, int[]> GetCommandCounts(TimeSpan begin, TimeSpan end)
+        {
+            var playerCommands = new Dictionary<byte, int[]>();
+
+            foreach (var (time, commands) in _commands)
+            {
+                if (time < begin)
+                {
+                    continue;
+                }
+                if (time >= end)
+                {
+                    break;
+                }
+                foreach (var command in commands)
+                {
+                    if (!playerCommands.TryGetValue(command.CommandId, out var commandCount))
+                    {
+                        commandCount = playerCommands[command.CommandId] = new int[Players.Length];
+                    }
+                    commandCount[command.PlayerIndex] = commandCount[command.PlayerIndex] + 1;
+                }
+            }
+            return playerCommands;
+        }
+
+        public static bool IsUnknown(byte commandId)
+        {
+            if (UnknownCommands.ContainsKey(commandId))
+            {
+                return true;
+            }
+            if (RA3Commands.IsUnknownCommand(commandId))
+            {
+                UnknownCommands.TryAdd(commandId, default);
+                return true;
+            }
+            return false;
+        }
+
+        public static bool IsAuto(byte commandId) => AutoCommands.ContainsKey(commandId);
+
+        public static bool IsClick(byte commandId) => commandId is 0xF8 or 0xF5;
+    }
+}

Apm/DataRow.cs

@@ -0,0 +1,146 @@
+using AnotherReplayReader.ReplayFile;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace AnotherReplayReader.Apm
+{
+    internal class DataRow
+    {
+        public const string AverageApmRow = "APM（整局游戏）";
+        public const string PartialApmRow = "APM（当前时间段）";
+
+        public string Name { get; }
+        public bool IsDisabled { get; }
+        public DataValue Player1Value => _values[0];
+        public DataValue Player2Value => _values[1];
+        public DataValue Player3Value => _values[2];
+        public DataValue Player4Value => _values[3];
+        public DataValue Player5Value => _values[4];
+        public DataValue Player6Value => _values[5];
+
+        private readonly IReadOnlyList<DataValue> _values;
+
+        public DataRow(string name,
+                       IEnumerable<string> values,
+                       bool isDisabled = false)
+        {
+            Name = name;
+            IsDisabled = isDisabled;
+
+            if (values.Count() < 6)
+            {
+                values = values.Concat(new string[6 - values.Count()]);
+            }
+            _values = values.Select(x => new DataValue(x)).ToArray();
+        }
+
+        public static List<DataRow> GetList(ApmPlotter plotter,
+                                            ApmPlotterFilterOptions options,
+                                            PlayerIdentity identity,
+                                            TimeSpan begin,
+                                            TimeSpan end,
+                                            out int apmRowIndex)
+        {
+            // these commands should appear in this order by default
+            var orderedCommands = new List<byte>();
+            orderedCommands.AddRange(RA3Commands.UnknownCommands);
+            orderedCommands.AddRange(RA3Commands.AutoCommands);
+            orderedCommands.AddRange(new byte[]
+            {
+                0xF5,
+                0xF8,
+                0x2A,
+                0xFA,
+                0xFB,
+                0x07,
+                0x08,
+                0x05,
+                0x06,
+                0x09,
+                0x00,
+                0x0A,
+                0x03,
+                0x04,
+                0x28,
+                0x29,
+                0x0D,
+                0x0E,
+                0x15,
+                0x14,
+                0x36,
+                0x16,
+                0x2C,
+                0x1A,
+                0x4E,
+                0xFE,
+                0xFF,
+                0x32,
+                0x2E,
+                0x2F,
+                0x4B,
+                0x4C,
+                0x02,
+                0x0C,
+                0x10,
+            });
+
+            var dataList = new List<DataRow>
+            {
+                new("ID", plotter.Players.Select(x => x.PlayerName))
+            };
+            var isPartial = begin > TimeSpan.Zero || end <= plotter.ReplayLength;
+            if (isPartial)
+            {
+                string GetStatus(Player player, int i)
+                {
+                    if (player.IsComputer)
+                    {
+                        return "这是 AI";
+                    }
+                    if (begin < plotter.StricterPlayerLifes[i])
+                    {
+                        return "存活";
+                    }
+                    return begin < plotter.PlayerLifes[i]
+                            ? "变身天眼帝国，或双手离开键盘"
+                            : "可能已离开房间";
+                }
+                dataList.Add(new("存活状态（推测）", plotter.Players.Select(GetStatus)));
+            }
+            if (plotter.Replay.Type is ReplayType.Lan && identity.IsUsable)
+            {
+                string GetIpAndName(Player player) => player.IsComputer
+                    ? "这是 AI"
+                    : identity.QueryRealNameAndIP(player.PlayerIp);
+                dataList.Add(new("局域网 IP", plotter.Players.Select(GetIpAndName)));
+            }
+            apmRowIndex = dataList.Count;
+            // get commands
+            var commandCounts = plotter.GetCommandCounts(begin, end);
+            // add commands in the order specified by the list
+            foreach (var command in orderedCommands)
+            {
+                var counts = commandCounts.TryGetValue(command, out var stored) 
+                    ? stored 
+                    : new int[plotter.Players.Length];
+                if (!isPartial || counts.Any(x => x > 0))
+                {
+                    dataList.Add(new(RA3Commands.GetCommandName(command),
+                                     counts.Select(x => $"{x}"),
+                                     options.ShouldSkip(command)));
+                }
+                commandCounts.Remove(command);
+            }
+            // add other commands
+            foreach (var commandCount in commandCounts)
+            {
+                dataList.Add(new(RA3Commands.GetCommandName(commandCount.Key),
+                                 commandCount.Value.Select(x => $"{x}"),
+                                 options.ShouldSkip(commandCount.Key)));
+            }
+
+            return dataList;
+        }
+    }
+}

Apm/DataValue.cs

@@ -0,0 +1,43 @@
+using System;
+
+namespace AnotherReplayReader.Apm
+{
+    internal class DataValue : IComparable<DataValue>, IComparable
+    {
+        public int? NumberValue { get; }
+        public string Value { get; }
+
+        public DataValue(string value)
+        {
+            Value = value;
+            if (int.TryParse(value, out var numberValue))
+            {
+                NumberValue = numberValue;
+            }
+        }
+
+        public override string ToString() => Value;
+
+        public int CompareTo(DataValue other)
+        {
+            if (NumberValue.HasValue == other.NumberValue.HasValue)
+            {
+                if (!NumberValue.HasValue)
+                {
+                    return Value.CompareTo(other.Value);
+                }
+                return NumberValue.Value.CompareTo(other.NumberValue!.Value);
+            }
+            return NumberValue.HasValue ? 1 : -1;
+        }
+
+        public int CompareTo(object obj)
+        {
+            if (obj is DataValue other)
+            {
+                return CompareTo(other);
+            }
+            throw new NotSupportedException();
+        }
+    }
+}

ApmWindow.xaml

@@ -1,38 +1,103 @@
 <Window x:Class="AnotherReplayReader.ApmWindow"
         x:ClassModifier="internal"
+        x:Name="ApmWindowInstance"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:AnotherReplayReader"
+        xmlns:ox="http://oxyplot.org/wpf"
         mc:Ignorable="d"
         Title="APM"
-        Height="450"
+        Height="550"
-        Width="800">
+        Width="800"
-    <Grid>
+        Loaded="OnApmWindowLoaded">
-        <Label Margin="20,10,0,0"
+    <Grid Margin="0">
-               HorizontalAlignment="Left"
+        <Grid.RowDefinitions>
-               Height="30"
+            <RowDefinition Height="200*" />
-               VerticalAlignment="Top">
+            <RowDefinition Height="300*" />
+        </Grid.RowDefinitions>
+        <GridSplitter Grid.Row="0"
+                      VerticalAlignment="Bottom"
+                      HorizontalAlignment="Stretch"
+                      Height="6"
+                      BorderBrush="Gray"
+                      BorderThickness="1" />
+        <DockPanel Grid.Row="0"
+                   Margin="0,0,0,12">
+            <StackPanel DockPanel.Dock="Bottom"
+                        Margin="16,0"
+                        Orientation="Horizontal">
+                <Label Content="分辨率"
+                       VerticalAlignment="Center" />
+                <TextBox x:Name="_resolution"
+                         Width="42"
+                         TextAlignment="Right"
+                         VerticalAlignment="Center"
+                         PreviewTextInput="OnResolutionPreviewTextInput"
+                         TextChanged="OnResolutionTextChanged" />
+                <Label Content="秒"
+                       VerticalAlignment="Center" />
+                <CheckBox x:Name="_skipUnknowns"
+                          Margin="24,0,0,0"
+                          Content="忽略未知操作"
+                          IsChecked="True"
+                          VerticalAlignment="Center"
+                          Checked="OnSkipUnknownsCheckedChanged"
+                          Unchecked="OnSkipUnknownsCheckedChanged" />
+                <CheckBox x:Name="_skipAutos"
+                          Margin="24,0,0,0"
+                          Content="忽略自动操作"
+                          IsChecked="True"
+                          VerticalAlignment="Center"
+                          Checked="OnSkipAutosCheckedChanged"
+                          Unchecked="OnSkipAutosCheckedChanged" />
+                <CheckBox x:Name="_skipClicks"
+                          Margin="24,0,0,0"
+                          Content="忽略左键点选"
+                          IsChecked="False"
+                          VerticalAlignment="Center"
+                          Checked="OnSkipClicksCheckedChanged"
+                          Unchecked="OnSkipClicksCheckedChanged" />
+            </StackPanel>
+            <ox:PlotView x:Name="_plot"
+                         DataContext="{Binding ElementName=ApmWindowInstance, Path=PlotModel}"
+                         Model="{Binding Model}" />
+        </DockPanel>
+        <DockPanel Grid.Row="1"
+                   Margin="16,8,16,16">
+            <DockPanel DockPanel.Dock="Top">
+                <Button x:Name="_setPlayerButton"
+                        DockPanel.Dock="Right"
+                        Content="设置玩家信息..."
+                        VerticalAlignment="Center"
+                        Padding="8,4"
+                        Visibility="Visible"
+                        Click="OnSetPlayerButtonClick" />
+                <Label x:Name="_label"
+                       Grid.Column="1"
+                       Margin="0"
+                       VerticalAlignment="Center">
                     选择表格之后按 Ctrl+C 可以复制内容
                 </Label>
-        <Button x:Name="_setPlayerButton"
+            </DockPanel>
-                Content="设置玩家信息..."
-                Margin="0,19,22,0"
-                VerticalAlignment="Top"
-                Padding="5,2"
-                Visibility="Hidden"
-                Click="OnSetPlayerButtonClick"
-                HorizontalAlignment="Right"/>
             <DataGrid x:Name="_table"
-                  Margin="20,40,22,19"
+                      CanUserSortColumns="True"
-                  Grid.ColumnSpan="2"
+                      VirtualizingPanel.ScrollUnit="Pixel">
-                  CanUserSortColumns="True">
                 <DataGrid.Resources>
                     <Style TargetType="DataGridCell">
                         <EventSetter Event="MouseDoubleClick"
                                      Handler="OnTableMouseDoubleClick" />
                     </Style>
+                    <Style TargetType="DataGridRow">
+                        <Style.Triggers>
+                            <DataTrigger Binding="{Binding Path=IsDisabled}"
+                                         Value="True">
+                                <Setter Property="Foreground"
+                                        Value="Gray" />
+                            </DataTrigger>
+                        </Style.Triggers>
+                    </Style>
                 </DataGrid.Resources>
                 <DataGrid.Columns>
                     <DataGridTextColumn Header="项"
@@ -58,6 +123,6 @@
                                         IsReadOnly="True" />
                 </DataGrid.Columns>
             </DataGrid>
-
+        </DockPanel>
     </Grid>
 </Window>

ApmWindow.xaml.cs

@@ -1,174 +1,64 @@
-using AnotherReplayReader.ReplayFile;
+using AnotherReplayReader.Apm;
+using AnotherReplayReader.ReplayFile;
+using AnotherReplayReader.Utils;
+using OxyPlot;
+using OxyPlot.Annotations;
+using OxyPlot.Axes;
+using OxyPlot.Legends;
+using OxyPlot.Series;
 using System;
-using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Input;
 
 namespace AnotherReplayReader
 {
-    internal class DataValue : IComparable<DataValue>, IComparable
-    {
-        public int? NumberValue { get; }
-        public string Value { get; }
-
-        public DataValue(string value)
-        {
-            Value = value;
-            if (int.TryParse(value, out var numberValue))
-            {
-                NumberValue = numberValue;
-            }
-        }
-
-        public override string ToString() => Value;
-
-        public int CompareTo(DataValue other)
-        {
-            if (NumberValue.HasValue == other.NumberValue.HasValue)
-            {
-                if (!NumberValue.HasValue)
-                {
-                    return Value.CompareTo(other.Value);
-                }
-                return NumberValue.Value.CompareTo(other.NumberValue!.Value);
-            }
-            return NumberValue.HasValue ? 1 : -1;
-        }
-
-        public int CompareTo(object obj)
-        {
-            if (obj is DataValue other)
-            {
-                return CompareTo(other);
-            }
-            throw new NotSupportedException();
-        }
-    }
-
-    internal class DataRow
-    {
-        public string Name { get; }
-        public DataValue Player1Value => _values[0];
-        public DataValue Player2Value => _values[1];
-        public DataValue Player3Value => _values[2];
-        public DataValue Player4Value => _values[3];
-        public DataValue Player5Value => _values[4];
-        public DataValue Player6Value => _values[5];
-
-        private readonly IReadOnlyList<DataValue> _values;
-
-        public DataRow(string name, IEnumerable<string> values)
-        {
-            Name = name;
-
-            if (values.Count() < 6)
-            {
-                values = values.Concat(new string[6 - values.Count()]);
-            }
-            _values = values.Select(x => new DataValue(x)).ToArray();
-        }
-
-        public static List<DataRow> GetList(Replay replay, PlayerIdentity identity)
-        {
-            var list = new List<byte>
-            {
-                0x0F,
-                0x5F,
-                0x12,
-                0x1B,
-                0x48,
-                0x52,
-                0xFC,
-                0xFD,
-                0x01,
-                0x21,
-                0x33,
-                0x34,
-                0x35,
-                0x37,
-                0x47,
-                0xF6,
-                0xF9,
-                0xF5,
-                0xF8,
-                0x2A,
-                0xFA,
-                0xFB,
-                0x07,
-                0x08,
-                0x05,
-                0x06,
-                0x09,
-                0x00,
-                0x0A,
-                0x03,
-                0x04,
-                0x28,
-                0x29,
-                0x0D,
-                0x0E,
-                0x15,
-                0x14,
-                0x36,
-                0x16,
-                0x2C,
-                0x1A,
-                0x4E,
-                0xFE,
-                0xFF,
-                0x32,
-                0x2E,
-                0x2F,
-                0x4B,
-                0x4C,
-                0x02,
-                0x0C,
-                0x10,
-            };
-
-            var dataList = new List<DataRow>
-            {
-                new DataRow("ID", replay.Players.Select(x => x.PlayerName))
-            };
-            if (replay.Type == ReplayType.Lan && identity.IsUsable)
-            {
-                dataList.Add(new DataRow("局域网IP", replay.Players.Select(x => identity.QueryRealNameAndIP(x.PlayerIp))));
-            }
-
-            var commandCounts = replay.GetCommandCounts();
-            foreach (var command in list)
-            {
-                var counts = commandCounts.TryGetValue(command, out var stored) ? stored : new int[replay.Players.Count];
-                dataList.Add(new DataRow(RA3Commands.GetCommandName(command), counts.Select(x => $"{x}")));
-                commandCounts.Remove(command);
-            }
-
-            foreach (var commandCount in commandCounts)
-            {
-                dataList.Add(new DataRow(RA3Commands.GetCommandName(commandCount.Key), commandCount.Value.Select(x => $"{x}")));
-            }
-
-            return dataList;
-        }
-    }
-
     /// <summary>
     /// APM.xaml 的交互逻辑
     /// </summary>
     internal partial class ApmWindow : Window
     {
+        public static readonly TimeSpan DefaultResolution = TimeSpan.FromSeconds(15);
+        private readonly Regex _resolutionRegex = new(@"[^0-9]+");
         private readonly PlayerIdentity _identity;
+        private readonly Replay _replay;
+        private readonly Task<ApmPlotter> _plotter;
+        private readonly ApmWindowPlotController _plotController;
+
+        public ApmWindowPlotViewModel PlotModel { get; } = new();
+        public TimeSpan PlotResolution { get; private set; } = DefaultResolution;
+        public bool SkipUnknowns { get; private set; } = true;
+        public bool SkipAutos { get; private set; } = true;
+        public bool SkipClicks { get; private set; } = false;
 
         public ApmWindow(Replay replay, PlayerIdentity identity)
         {
             _identity = identity;
+            _replay = replay;
+            _plotter = Task.Run(() => new ApmPlotter(replay));
+            _plotController = new(this);
             InitializeComponent();
-            InitializeApmWindowData(replay);
         }
 
-        private async void InitializeApmWindowData(Replay replay)
+        public async void FilterData(TimeSpan begin, TimeSpan end, bool updatePlot)
+        {
+            await FilterDataAsync(begin, end, updatePlot);
+        }
+
+        private async void OnApmWindowLoaded(object sender, RoutedEventArgs e)
+        {
+            _plot.Controller = _plotController;
+            _resolution.Text = PlotResolution.TotalSeconds.ToString();
+            _skipUnknowns.IsChecked = SkipUnknowns;
+            _skipAutos.IsChecked = SkipAutos;
+            _skipClicks.IsChecked = SkipClicks;
+            await InitializeApmWindowData();
+        }
+
+        private async Task InitializeApmWindowData()
         {
             if (_identity.IsUsable)
             {
@@ -181,9 +71,62 @@ namespace AnotherReplayReader
                 _setPlayerButton.Visibility = Visibility.Hidden;
             }
 
+            await FilterDataAsync(TimeSpan.MinValue, TimeSpan.MaxValue, true);
+            _label.Content = "选择表格之后按 Ctrl+C 可以复制内容";
+        }
+
+        private async Task FilterDataAsync(TimeSpan begin, TimeSpan end, bool updatePlot)
+        {
             try
             {
-                var dataList = await Task.Run(() => DataRow.GetList(replay, _identity));
+                await FilterDataAsyncThrowable(begin, end, updatePlot);
+            }
+            catch (Exception e)
+            {
+                MessageBox.Show($"加载录像信息失败：\r\n{e}");
+            }
+        }
+
+        private async Task FilterDataAsyncThrowable(TimeSpan begin, TimeSpan end, bool updatePlot)
+        {
+            var resolution = PlotResolution;
+            var options = new ApmPlotterFilterOptions(!SkipUnknowns, !SkipAutos, !SkipClicks);
+            var (dataList, plotData, replayLength, isPartial) = await Task.Run(async () =>
+            {
+                var plotter = await _plotter.ConfigureAwait(false);
+                var list = DataRow.GetList(plotter, options, _identity, begin, end, out var apmIndex);
+                // avg apm
+                var avg = plotter.CalculateAverageApm(options);
+                // data for plotting and partial apm
+                var data = plotter.GetPoints(resolution, options);
+                // partial apm
+                var isPartial = begin > TimeSpan.Zero || end <= plotter.ReplayLength;
+                if (isPartial)
+                {
+                    var instantApms = ApmPlotter.CalculateInstantApm(data, begin, end);
+                    string PartialApmToString(double v, int i)
+                    {
+                        if (plotter.Players[i].IsComputer)
+                        {
+                            return "这是 AI";
+                        }
+                        return plotter.PlayerLifes[i] < begin
+                            ? "玩家已战败"
+                            : $"{v:#.##}";
+                    }
+                    list.Insert(apmIndex, new(DataRow.PartialApmRow, 
+                                              instantApms.Select(PartialApmToString)));
+                }
+                list.Insert(apmIndex, new(DataRow.AverageApmRow, 
+                                                  avg.Select(v => $"{v:#.##}")));
+
+                return (list, data, plotter.ReplayLength, isPartial);
+            });
+            if (updatePlot)
+            {
+                BuildPlot(plotData, replayLength);
+            }
+
             _table.Items.Clear();
             foreach (var row in dataList)
             {
@@ -196,11 +139,55 @@ namespace AnotherReplayReader
             _table.Columns[4].Header = dataList[0].Player4Value;
             _table.Columns[5].Header = dataList[0].Player5Value;
             _table.Columns[6].Header = dataList[0].Player6Value;
-            }
+            if (isPartial)
-            catch (Exception e)
             {
-                MessageBox.Show($"加载录像信息失败：\r\n{e}");
+                _label.Content = $"{(ShortTimeSpan)begin} 至 {(ShortTimeSpan)end} 之间的 APM 数据";
+                _label.FontWeight = System.Windows.FontWeights.Bold;
             }
+            else
+            {
+                _label.Content = "以下是整局游戏的 APM 数据：";
+                _label.FontWeight = System.Windows.FontWeights.Normal;
+            }
+        }
+
+        private void BuildPlot(DataPoint[][] data, TimeSpan replayLength)
+        {
+            var model = new PlotModel();
+            model.Annotations.Add(new ApmWindowPlotTextAnnotation
+            {
+                Text = "鼠标左键拖拽选择，滚轮缩放，右键拖拽移动",
+            });
+            var maxApm = data.SelectMany(x => x).Max(x => x.Y);
+            var yaxis = new LinearAxis
+            {
+                Position = AxisPosition.Right,
+                IsZoomEnabled = false,
+                AbsoluteMinimum = -maxApm / 10,
+                AbsoluteMaximum = maxApm,
+                MajorStep = 50,
+            };
+            var lengthInSeconds = replayLength.TotalSeconds;
+            var limit = lengthInSeconds / 10;
+            var xaxis = new TimeSpanAxis
+            {
+                Position = AxisPosition.Bottom,
+                AbsoluteMinimum = -limit,
+                AbsoluteMaximum = lengthInSeconds + limit,
+            };
+            model.Axes.Add(yaxis);
+            model.Axes.Add(xaxis);
+            foreach (var (points, i) in data.Select((v, i) => (v, i)))
+            {
+                var series = new LineSeries
+                {
+                    Title = _replay.Players[i].PlayerName,
+                };
+                series.Points.AddRange(points);
+                model.Series.Add(series);
+                model.Legends.Add(new Legend());
+            }
+            PlotModel.Model = model;
         }
 
         private void OnSetPlayerButtonClick(object sender, RoutedEventArgs e)
@@ -213,5 +200,207 @@ namespace AnotherReplayReader
         {
             _table.SelectAll();
         }
+
+        private int NormalizeResolutionInput(string text)
+        {
+            if(!int.TryParse(text, out var value))
+            {
+                value = (int)PlotResolution.TotalSeconds;
+            }
+            return Math.Min(Math.Max(1, value), 3600);
+        }
+
+        private void OnResolutionPreviewTextInput(object sender, TextCompositionEventArgs e)
+        {
+            e.Handled = _resolutionRegex.IsMatch(e.Text);
+        }
+
+        private async void OnResolutionTextChanged(object sender, EventArgs e)
+        {
+            var seconds = NormalizeResolutionInput(_resolution.Text);
+            if (Math.Abs(seconds - PlotResolution.TotalSeconds) >= 0.5)
+            {
+                PlotResolution = TimeSpan.FromSeconds(seconds);
+                _resolution.Text = seconds.ToString();
+                _plotController.DiscardRectangle();
+                await FilterDataAsync(TimeSpan.MinValue, TimeSpan.MaxValue, true);
+            }
+        }
+
+        private async void OnSkipUnknownsCheckedChanged(object sender, RoutedEventArgs e)
+        {
+            if (_skipUnknowns.IsChecked != SkipUnknowns)
+            {
+                SkipUnknowns = _skipUnknowns.IsChecked is true;
+                _plotController.DiscardRectangle();
+                await FilterDataAsync(TimeSpan.MinValue, TimeSpan.MaxValue, true);
+            }
+        }
+
+        private async void OnSkipAutosCheckedChanged(object sender, RoutedEventArgs e)
+        {
+            if (_skipAutos.IsChecked != SkipAutos)
+            {
+                SkipAutos = _skipAutos.IsChecked is true;
+                _plotController.DiscardRectangle();
+                await FilterDataAsync(TimeSpan.MinValue, TimeSpan.MaxValue, true);
+            }
+        }
+
+        private async void OnSkipClicksCheckedChanged(object sender, RoutedEventArgs e)
+        {
+            if (_skipClicks.IsChecked != SkipClicks)
+            {
+                SkipClicks = _skipClicks.IsChecked is true;
+                _plotController.DiscardRectangle();
+                await FilterDataAsync(TimeSpan.MinValue, TimeSpan.MaxValue, true);
+            }
+        }
+    }
+
+    internal class ApmWindowPlotViewModel : INotifyPropertyChanged
+    {
+        private PlotModel _model = new();
+        public event PropertyChangedEventHandler? PropertyChanged;
+        public PlotModel Model
+        {
+            get => _model;
+            set
+            {
+                _model = value;
+                PropertyChanged?.Invoke(this, new(nameof(Model)));
+            }
+        }
+    }
+
+    internal class ApmWindowPlotController : PlotController
+    {
+        private readonly ApmWindow _window;
+        private RectangleAnnotation? _current;
+        private PlotModel Plot => _window.PlotModel.Model;
+        private double Resolution => _window.PlotResolution.TotalSeconds;
+        // private readonly Func<OxyMouseDownEventArgs>
+
+        public ApmWindowPlotController(ApmWindow window)
+        {
+            _window = window;
+        }
+
+        public void DiscardRectangle()
+        {
+            _current = null;
+            RemoveSelections();
+            Plot.InvalidatePlot(false);
+        }
+
+        public override bool HandleMouseDown(IView view, OxyMouseDownEventArgs args)
+        {
+            TryBeginDragRectagle(args);
+            return base.HandleMouseDown(view, args);
+        }
+
+        public override bool HandleMouseMove(IView view, OxyMouseEventArgs args)
+        {
+            TryDragRectangle(args);
+            return base.HandleMouseMove(view, args);
+        }
+
+        public override bool HandleMouseUp(IView view, OxyMouseEventArgs args)
+        {
+            TryEndDragRectangle();
+            return base.HandleMouseUp(view, args);
+        }
+
+        private void RemoveSelections()
+        {
+            var list = Plot.Annotations
+                .Select((x, i) => (Item: x, Index: i))
+                .Where(t => t.Item is RectangleAnnotation)
+                .Reverse()
+                .ToArray();
+            foreach (var (_, index) in list)
+            {
+                Plot.Annotations.RemoveAt(index);
+            }
+        }
+
+        private void TryBeginDragRectagle(OxyMouseDownEventArgs args)
+        {
+            if (args.ChangedButton == OxyMouseButton.Left)
+            {
+                var x = Plot.Axes[1].InverseTransform(args.Position.X);
+                x = Math.Round(x / Resolution) * Resolution;
+                RemoveSelections();
+                _current = new()
+                {
+                    ClipByYAxis = true,
+                    Fill = OxyColor.FromArgb(128, 0, 128, 255),
+                    MinimumY = double.NegativeInfinity,
+                    MaximumY = double.PositiveInfinity,
+                    MinimumX = x,
+                    MaximumX = x
+                };
+                Plot.Annotations.Add(_current);
+                Plot.InvalidatePlot(false);
+            }
+        }
+
+        private void TryDragRectangle(OxyMouseEventArgs args)
+        {
+            if (_current is not null)
+            {
+                var x = Plot.Axes[1].InverseTransform(args.Position.X);
+                var offsetMultiplier = Math.Round((x - _current.MinimumX) / Resolution);
+                x = offsetMultiplier * Resolution;
+                _current.MaximumX = _current.MinimumX + x;
+                if (_current.MaximumX < _current.MinimumX)
+                {
+                    var temp = _current.MinimumX;
+                    _current.MinimumX = _current.MaximumX;
+                    _current.MaximumX = temp;
+                }
+                Plot.InvalidatePlot(false);
+            }
+        }
+
+        private void TryEndDragRectangle()
+        {
+            if (_current is not null)
+            {
+                if (Math.Abs(_current.MaximumX - _current.MinimumX) < Resolution)
+                {
+                    RemoveSelections();
+                    Plot.InvalidatePlot(false);
+                    _window.FilterData(TimeSpan.MinValue, TimeSpan.MaxValue, false);
+                }
+                else
+                {
+                    _window.FilterData(TimeSpan.FromSeconds(_current.MinimumX),
+                                       TimeSpan.FromSeconds(_current.MaximumX),
+                                       false);
+                }
+                _current = null;
+            }
+        }
+    }
+
+    public class ApmWindowPlotTextAnnotation : Annotation
+    {
+        public string Text { get; set; } = string.Empty;
+        public double X { get; set; } = 8;
+        public double Y { get; set; } = 8;
+
+        public override void Render(IRenderContext rc)
+        {
+            base.Render(rc);
+            double pX = PlotModel.PlotArea.Left + X;
+            double pY = PlotModel.PlotArea.Top + Y;
+            rc.DrawMultilineText(new(pX, pY),
+                                 Text,
+                                 PlotModel.TextColor,
+                                 PlotModel.DefaultFont,
+                                 PlotModel.DefaultFontSize,
+                                 PlotModel.SubtitleFontWeight);
+        }
     }
 }

ReplayFile/CommandChunk.cs

@@ -1,264 +1,15 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using System.Linq;
 
 namespace AnotherReplayReader.ReplayFile
 {
-    internal static class RA3Commands
-    {
-        private static readonly Dictionary<byte, Action<BinaryReader>> _commandParser;
-        private static readonly Dictionary<byte, string> _commandNames;
-
-        static RA3Commands()
-        {
-            Action<BinaryReader> fixedSizeParser(byte command, int size)
-            {
-                return (BinaryReader current) =>
-                {
-                    var lastByte = current.ReadBytes(size - 2).Last();
-                    if (lastByte != 0xFF)
-                    {
-                        throw new InvalidDataException($"Failed to parse command {command:X}, last byte is {lastByte:X}");
-                    }
-                };
-            }
-
-            Action<BinaryReader> variableSizeParser(byte command, int offset)
-            {
-                return (BinaryReader current) =>
-                {
-                    var totalBytes = 2;
-                    totalBytes += current.ReadBytes(offset - 2).Length;
-                    for (var x = current.ReadByte(); x != 0xFF; x = current.ReadByte())
-                    {
-                        totalBytes += 1;
-
-
-                        var size = ((x >> 4) + 1) * 4;
-                        totalBytes += current.ReadBytes(size).Length;
-                    }
-                    totalBytes += 1;
-                    var chk = totalBytes;
-                };
-            };
-
-            var list = new List<(byte, Func<byte, int, Action<BinaryReader>>, int, string)>
-            {
-                (0x00, fixedSizeParser, 45, "展开建筑/建造碉堡（？）"),
-                (0x03, fixedSizeParser, 17, "开始升级"),
-                (0x04, fixedSizeParser, 17, "暂停/中止升级"),
-                (0x05, fixedSizeParser, 20, "开始生产单位或纳米核心"),
-                (0x06, fixedSizeParser, 20, "暂停/取消生产单位或纳米核心"),
-                (0x07, fixedSizeParser, 17, "开始建造建筑"),
-                (0x08, fixedSizeParser, 17, "暂停/取消建造建筑"),
-                (0x09, fixedSizeParser, 35, "摆放建筑"),
-                (0x0F, fixedSizeParser, 16, "（未知指令）"),
-                (0x14, fixedSizeParser, 16, "移动"),
-                (0x15, fixedSizeParser, 16, "移动攻击（A）"),
-                (0x16, fixedSizeParser, 16, "强制移动/碾压（G）"),
-                (0x21, fixedSizeParser, 20, "[游戏每3秒自动产生的指令]"),
-                (0x2C, fixedSizeParser, 29, "队形移动（左右键）"),
-                (0x32, fixedSizeParser, 53, "释放技能或协议（多个目标，如侦察扫描协议）"),
-                (0x34, fixedSizeParser, 45, "[游戏自动产生的UUID]"),
-                (0x35, fixedSizeParser, 1049, "[玩家信息（？）]"),
-                (0x36, fixedSizeParser, 16, "倒车移动（D）"),
-                (0x5F, fixedSizeParser, 11, "（未知指令）"),
-
-                (0x0A, variableSizeParser, 2, "出售建筑"),
-                (0x0D, variableSizeParser, 2, "右键攻击"),
-                (0x0E, variableSizeParser, 2, "强制攻击（Ctrl）"),
-                (0x12, variableSizeParser, 2, "（未知指令）"),
-                (0x1A, variableSizeParser, 2, "停止（S）"),
-                (0x1B, variableSizeParser, 2, "（未知指令）"),
-                (0x28, variableSizeParser, 2, "开始维修建筑"),
-                (0x29, variableSizeParser, 2, "停止维修建筑"),
-                (0x2A, variableSizeParser, 2, "选择所有单位（Q）"),
-                (0x2E, variableSizeParser, 2, "切换警戒/侵略/固守/停火模式"),
-                (0x2F, variableSizeParser, 2, "路径点模式（Alt）（？）"),
-                (0x37, variableSizeParser, 2, "[游戏不定期自动产生的指令]"),
-                (0x47, variableSizeParser, 2, "[游戏在第五帧自动产生的指令]"),
-                (0x48, variableSizeParser, 2, "（未知指令）"),
-                (0x4C, variableSizeParser, 2, "删除信标（或F9？）"),
-                (0x4E, variableSizeParser, 2, "选择协议"),
-                (0x52, variableSizeParser, 2, "（未知指令）"),
-                (0xF5, variableSizeParser, 5, "选择单位"),
-                (0xF6, variableSizeParser, 5, "[未知指令，貌似会在展开兵营核心时自动产生？]"),
-                (0xF8, variableSizeParser, 4, "鼠标左键单击/取消选择"),
-                (0xF9, variableSizeParser, 2, "[可能是步兵自行从进驻的建筑撤出]"),
-                (0xFA, variableSizeParser, 7, "创建编队"),
-                (0xFB, variableSizeParser, 2, "选择编队"),
-                (0xFC, variableSizeParser, 2, "（未知指令）"),
-                (0xFD, variableSizeParser, 7, "（未知指令）"),
-                (0xFE, variableSizeParser, 15, "释放技能或协议（无目标）"),
-                (0xFF, variableSizeParser, 34, "释放技能或协议（单个目标）"),
-            };
-
-            var specialList = new List<(byte, Action<BinaryReader>, string)>
-            {
-                (0x01,  ParseSpecialChunk0x01, "[游戏自动生成的指令]"),
-                (0x02,  ParseSetRallyPoint0x02, "设计集结点"),
-                (0x0C,  ParseUngarrison0x0C, "从进驻的建筑撤出（？）"),
-                (0x10,  ParseGarrison0x10, "进驻建筑"),
-                (0x33,  ParseUuid0x33, "[游戏自动生成的UUID指令]"),
-                (0x4B,  ParsePlaceBeacon0x4B, "信标")
-            };
-
-            _commandParser = new Dictionary<byte, Action<BinaryReader>>();
-            _commandNames = new Dictionary<byte, string>();
-
-            foreach (var (id, maker, size, description) in list)
-            {
-                _commandParser.Add(id, maker(id, size));
-                _commandNames.Add(id, description);
-            }
-
-            foreach (var (id, parser, description) in specialList)
-            {
-                _commandParser.Add(id, parser);
-                _commandNames.Add(id, description);
-            }
-
-            _commandNames.Add(0x4D, "在信标里输入文字");
-        }
-
-        public static void ReadCommandData(this BinaryReader reader, byte commandId)
-        {
-            if (_commandParser.TryGetValue(commandId, out var parser))
-            {
-                _commandParser[commandId](reader);
-            }
-            else
-            {
-                UnknownCommandParser(reader, commandId);
-            }
-        }
-
-        public static string GetCommandName(byte commandId)
-        {
-            return _commandNames.TryGetValue(commandId, out var storedName) ? storedName : $"（未知指令 0x{commandId:X2}）";
-        }
-
-        public static void UnknownCommandParser(BinaryReader current, byte commandId)
-        {
-            while (true)
-            {
-                var value = current.ReadByte();
-                if (value == 0xFF)
-                {
-                    break;
-                }
-            }
-
-            //return $"（未知指令 0x{commandID:2X}）";
-        }
-
-        private static void ParseSpecialChunk0x01(BinaryReader current)
-        {
-            var firstByte = current.ReadByte();
-            if (firstByte == 0xFF)
-            {
-                return;
-            }
-
-            var sixthByte = current.ReadBytes(5).Last();
-            if (sixthByte == 0xFF)
-            {
-                return;
-            }
-
-            var sixteenthByte = current.ReadBytes(10).Last();
-            var size = (int)(sixteenthByte + 1) * 4 + 14;
-            var lastByte = current.ReadBytes(size).Last();
-            if (lastByte != 0xFF)
-            {
-                throw new InvalidDataException();
-            }
-
-            return;
-        }
-
-        private static void ParseSetRallyPoint0x02(BinaryReader current)
-        {
-            var size = (current.ReadBytes(23).Last() + 1) * 2 + 1;
-            var lastByte = current.ReadBytes(size).Last();
-            if (lastByte != 0xFF)
-            {
-                throw new InvalidDataException();
-            }
-        }
-
-        private static void ParseUngarrison0x0C(BinaryReader current)
-        {
-            current.ReadByte();
-            var size = (current.ReadByte() + 1) * 4 + 1;
-            var lastByte = current.ReadBytes(size).Last();
-            if (lastByte != 0xFF)
-            {
-                throw new InvalidDataException();
-            }
-        }
-
-        private static void ParseGarrison0x10(BinaryReader current)
-        {
-            var type = current.ReadByte();
-            var size = -1;
-            if (type == 0x14)
-            {
-                size = 9;
-            }
-            else if (type == 0x04)
-            {
-                size = 10;
-            }
-
-            var lastByte = current.ReadBytes(size).Last();
-            if (lastByte != 0xFF)
-            {
-                throw new InvalidDataException();
-            }
-        }
-
-        private static void ParseUuid0x33(BinaryReader current)
-        {
-            current.ReadByte();
-            var firstStringLength = (int)current.ReadByte();
-            current.ReadBytes(firstStringLength + 1);
-            var secondStringLength = current.ReadByte() * 2;
-            var lastByte = current.ReadBytes(secondStringLength + 6).Last();
-            if (lastByte != 0xFF)
-            {
-                throw new InvalidDataException();
-            }
-        }
-
-        private static void ParsePlaceBeacon0x4B(BinaryReader current)
-        {
-            var type = current.ReadByte();
-            var size = -1;
-            if (type == 0x04)
-            {
-                size = 5;
-            }
-            else if (type == 0x07)
-            {
-                size = 13;
-            }
-
-            var lastByte = current.ReadBytes(size).Last();
-            if (lastByte != 0xFF)
-            {
-                throw new InvalidDataException();
-            }
-        }
-    }
-
     internal sealed class CommandChunk
     {
         public byte CommandId { get; private set; }
         public int PlayerIndex { get; private set; }
 
-        public static List<CommandChunk> Parse(in ReplayChunk chunk)
+        public static List<CommandChunk> Parse(ReplayChunk chunk)
         {
             if (chunk.Type != 1)
             {
@@ -297,5 +48,10 @@ namespace AnotherReplayReader.ReplayFile
 
             return list;
         }
+
+        public override string ToString()
+        {
+            return $"[玩家 {PlayerIndex}，{RA3Commands.GetCommandName(CommandId)}]";
+        }
     }
 }

ReplayFile/Player.cs

@@ -12,6 +12,7 @@ namespace AnotherReplayReader.ReplayFile
             { "B", "凶残" },
         };
 
+        public bool IsComputer { get; }
         public string PlayerName { get; }
         public uint PlayerIp { get; }
         public int FactionId { get; }
@@ -19,11 +20,11 @@ namespace AnotherReplayReader.ReplayFile
 
         public Player(string[] playerEntry)
         {
-            var isComputer = playerEntry[0][0] == 'C';
+            IsComputer = playerEntry[0][0] == 'C';
 
             PlayerName = playerEntry[0].Substring(1);
 
-            if (isComputer)
+            if (IsComputer)
             {
                 PlayerName = ComputerNames[PlayerName];
                 PlayerIp = 0;

ReplayFile/RA3Commands.cs

@@ -0,0 +1,288 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.Immutable;
+using System.IO;
+using System.Linq;
+
+namespace AnotherReplayReader.ReplayFile
+{
+    internal static class RA3Commands
+    {
+        private static readonly Dictionary<byte, Action<BinaryReader>> _commandParser;
+        private static readonly Dictionary<byte, string> _commandNames;
+
+        public static ImmutableArray<byte> UnknownCommands { get; } = new byte[]
+        {
+            0x0F, // unk
+            0x5F, // unk
+            0x12, // unk
+            0x1B, // unk
+            0x48, // unk
+            0x52, // unk
+            0xFC, // unk
+            0xFD, // unk
+        }.ToImmutableArray();
+
+        public static ImmutableArray<byte> AutoCommands { get; } = new byte[]
+        {
+            0x01, // auto gen
+            0x21, // 3 seconds heartbeat
+            0x33, // uuid
+            0x34, // uuid
+            0x35, // player info
+            0x37, // indeterminate autogen
+            0x47, // 5th frame auto gen
+            0xF6, // auto, maybe from barrack deploy
+            0xF9, // auto, maybe unit from structures
+        }.ToImmutableArray();
+
+        static RA3Commands()
+        {
+            Action<BinaryReader> FixedSizeParser(byte command, int size)
+            {
+                return (BinaryReader current) =>
+                {
+                    var lastByte = current.ReadBytes(size - 2).Last();
+                    if (lastByte != 0xFF)
+                    {
+                        throw new InvalidDataException($"Failed to parse command {command:X}, last byte is {lastByte:X}");
+                    }
+                };
+            }
+
+            Action<BinaryReader> VariableSizeParser(byte command, int offset)
+            {
+                return (BinaryReader current) =>
+                {
+                    var totalBytes = 2;
+                    totalBytes += current.ReadBytes(offset - 2).Length;
+                    for (var x = current.ReadByte(); x != 0xFF; x = current.ReadByte())
+                    {
+                        totalBytes += 1;
+
+
+                        var size = ((x >> 4) + 1) * 4;
+                        totalBytes += current.ReadBytes(size).Length;
+                    }
+                    totalBytes += 1;
+                    var chk = totalBytes;
+                };
+            };
+
+            var list = new List<(byte, Func<byte, int, Action<BinaryReader>>, int, string)>
+            {
+                (0x00, FixedSizeParser, 45, "展开建筑/建造碉堡（？）"),
+                (0x03, FixedSizeParser, 17, "开始升级"),
+                (0x04, FixedSizeParser, 17, "暂停/中止升级"),
+                (0x05, FixedSizeParser, 20, "开始生产单位或纳米核心"),
+                (0x06, FixedSizeParser, 20, "暂停/取消生产单位或纳米核心"),
+                (0x07, FixedSizeParser, 17, "开始建造建筑"),
+                (0x08, FixedSizeParser, 17, "暂停/取消建造建筑"),
+                (0x09, FixedSizeParser, 35, "摆放建筑"),
+                (0x0F, FixedSizeParser, 16, "（未知指令 0x0F）"),
+                (0x14, FixedSizeParser, 16, "移动"),
+                (0x15, FixedSizeParser, 16, "移动攻击（A）"),
+                (0x16, FixedSizeParser, 16, "强制移动/碾压（G）"),
+                (0x21, FixedSizeParser, 20, "[游戏每3秒自动产生的指令]"),
+                (0x2C, FixedSizeParser, 29, "队形移动（左右键）"),
+                (0x32, FixedSizeParser, 53, "释放技能或协议（多个目标，如侦察扫描协议）"),
+                (0x34, FixedSizeParser, 45, "[游戏自动产生的UUID]"),
+                (0x35, FixedSizeParser, 1049, "[玩家信息（？）]"),
+                (0x36, FixedSizeParser, 16, "倒车移动（D）"),
+                (0x5F, FixedSizeParser, 11, "（未知指令 0x5F）"),
+
+                (0x0A, VariableSizeParser, 2, "出售建筑"),
+                (0x0D, VariableSizeParser, 2, "右键攻击"),
+                (0x0E, VariableSizeParser, 2, "强制攻击（Ctrl）"),
+                (0x12, VariableSizeParser, 2, "（未知指令 0x12）"),
+                (0x1A, VariableSizeParser, 2, "停止（S）"),
+                (0x1B, VariableSizeParser, 2, "（未知指令 0x1B）"),
+                (0x28, VariableSizeParser, 2, "开始维修建筑"),
+                (0x29, VariableSizeParser, 2, "停止维修建筑"),
+                (0x2A, VariableSizeParser, 2, "选择所有单位（Q）"),
+                (0x2E, VariableSizeParser, 2, "切换警戒/侵略/固守/停火模式"),
+                (0x2F, VariableSizeParser, 2, "路径点模式（Alt）（？）"),
+                (0x37, VariableSizeParser, 2, "[游戏不定期自动产生的指令]"),
+                (0x47, VariableSizeParser, 2, "[游戏在第五帧自动产生的指令]"),
+                (0x48, VariableSizeParser, 2, "（未知指令 0x48）"),
+                (0x4C, VariableSizeParser, 2, "删除信标（或 F9？）"),
+                (0x4E, VariableSizeParser, 2, "选择协议"),
+                (0x52, VariableSizeParser, 2, "（未知指令 0x52）"),
+                (0xF5, VariableSizeParser, 5, "选择单位"),
+                (0xF6, VariableSizeParser, 5, "[未知指令，貌似会在展开兵营核心时自动产生？]"),
+                (0xF8, VariableSizeParser, 4, "鼠标左键单击/取消选择"),
+                (0xF9, VariableSizeParser, 2, "[可能是步兵自行从进驻的建筑撤出]"),
+                (0xFA, VariableSizeParser, 7, "创建编队"),
+                (0xFB, VariableSizeParser, 2, "选择编队"),
+                (0xFC, VariableSizeParser, 2, "（未知指令 0xFC）"),
+                (0xFD, VariableSizeParser, 7, "（未知指令 0xFD）"),
+                (0xFE, VariableSizeParser, 15, "释放技能或协议（无目标）"),
+                (0xFF, VariableSizeParser, 34, "释放技能或协议（单个目标）"),
+            };
+
+            var specialList = new List<(byte, Action<BinaryReader>, string)>
+            {
+                (0x01,  ParseSpecialChunk0x01, "[游戏自动生成的指令]"),
+                (0x02,  ParseSetRallyPoint0x02, "设计集结点"),
+                (0x0C,  ParseUngarrison0x0C, "从进驻的建筑撤出（？）"),
+                (0x10,  ParseGarrison0x10, "进驻建筑"),
+                (0x33,  ParseUuid0x33, "[游戏自动生成的UUID指令]"),
+                (0x4B,  ParsePlaceBeacon0x4B, "信标")
+            };
+
+            _commandParser = new Dictionary<byte, Action<BinaryReader>>();
+            _commandNames = new Dictionary<byte, string>();
+
+            foreach (var (id, maker, size, description) in list)
+            {
+                _commandParser.Add(id, maker(id, size));
+                _commandNames.Add(id, description);
+            }
+
+            foreach (var (id, parser, description) in specialList)
+            {
+                _commandParser.Add(id, parser);
+                _commandNames.Add(id, description);
+            }
+
+            _commandNames.Add(0x4D, "在信标里输入文字");
+        }
+
+        public static void ReadCommandData(this BinaryReader reader, byte commandId)
+        {
+            if (_commandParser.TryGetValue(commandId, out var parser))
+            {
+                _commandParser[commandId](reader);
+            }
+            else
+            {
+                UnknownCommandParser(reader, commandId);
+            }
+        }
+
+        public static bool IsUnknownCommand(byte commandId)
+        {
+            return !_commandNames.ContainsKey(commandId);
+        }
+
+        public static string GetCommandName(byte commandId)
+        {
+            return _commandNames.TryGetValue(commandId, out var storedName) 
+                ? storedName 
+                : $"（未知指令 0x{commandId:X2}）";
+        }
+
+        public static void UnknownCommandParser(BinaryReader current, byte commandId)
+        {
+            while (true)
+            {
+                var value = current.ReadByte();
+                if (value == 0xFF)
+                {
+                    break;
+                }
+            }
+
+            //return $"（未知指令 0x{commandID:2X}）";
+        }
+
+        private static void ParseSpecialChunk0x01(BinaryReader current)
+        {
+            var firstByte = current.ReadByte();
+            if (firstByte == 0xFF)
+            {
+                return;
+            }
+
+            var sixthByte = current.ReadBytes(5).Last();
+            if (sixthByte == 0xFF)
+            {
+                return;
+            }
+
+            var sixteenthByte = current.ReadBytes(10).Last();
+            var size = (int)(sixteenthByte + 1) * 4 + 14;
+            var lastByte = current.ReadBytes(size).Last();
+            if (lastByte != 0xFF)
+            {
+                throw new InvalidDataException();
+            }
+
+            return;
+        }
+
+        private static void ParseSetRallyPoint0x02(BinaryReader current)
+        {
+            var size = (current.ReadBytes(23).Last() + 1) * 2 + 1;
+            var lastByte = current.ReadBytes(size).Last();
+            if (lastByte != 0xFF)
+            {
+                throw new InvalidDataException();
+            }
+        }
+
+        private static void ParseUngarrison0x0C(BinaryReader current)
+        {
+            current.ReadByte();
+            var size = (current.ReadByte() + 1) * 4 + 1;
+            var lastByte = current.ReadBytes(size).Last();
+            if (lastByte != 0xFF)
+            {
+                throw new InvalidDataException();
+            }
+        }
+
+        private static void ParseGarrison0x10(BinaryReader current)
+        {
+            var type = current.ReadByte();
+            var size = -1;
+            if (type == 0x14)
+            {
+                size = 9;
+            }
+            else if (type == 0x04)
+            {
+                size = 10;
+            }
+
+            var lastByte = current.ReadBytes(size).Last();
+            if (lastByte != 0xFF)
+            {
+                throw new InvalidDataException();
+            }
+        }
+
+        private static void ParseUuid0x33(BinaryReader current)
+        {
+            current.ReadByte();
+            var firstStringLength = (int)current.ReadByte();
+            current.ReadBytes(firstStringLength + 1);
+            var secondStringLength = current.ReadByte() * 2;
+            var lastByte = current.ReadBytes(secondStringLength + 6).Last();
+            if (lastByte != 0xFF)
+            {
+                throw new InvalidDataException();
+            }
+        }
+
+        private static void ParsePlaceBeacon0x4B(BinaryReader current)
+        {
+            var type = current.ReadByte();
+            var size = -1;
+            if (type == 0x04)
+            {
+                size = 5;
+            }
+            else if (type == 0x07)
+            {
+                size = 13;
+            }
+
+            var lastByte = current.ReadBytes(size).Last();
+            if (lastByte != 0xFF)
+            {
+                throw new InvalidDataException();
+            }
+        }
+    }
+}

ReplayFile/Replay.cs

@@ -1,6 +1,7 @@
 using AnotherReplayReader.Utils;
 using System;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.IO;
 using System.Linq;
 using System.Text;
@@ -23,6 +24,8 @@ namespace AnotherReplayReader.ReplayFile
             { ReplayType.Lan, "局域网录像" },
             { ReplayType.Online, "官网录像" },
         };
+        public const double FrameRate = 15.0;
+        public const string PostCommentator = "post Commentator";
 
         private readonly byte _replaySaverIndex;
         private readonly byte[]? _rawHeader;
@@ -31,7 +34,7 @@ namespace AnotherReplayReader.ReplayFile
         public DateTime Date { get; }
         public string MapName { get; }
         public string MapPath { get; }
-        public IReadOnlyList<Player> Players { get; }
+        public ImmutableArray<Player> Players { get; }
         public int NumberOfPlayingPlayers { get; }
         public Mod Mod { get; }
         public ReplayType Type { get; }
@@ -39,7 +42,7 @@ namespace AnotherReplayReader.ReplayFile
 
         public long Size { get; }
         public ReplayFooter? Footer { get; }
-        public IReadOnlyList<ReplayChunk>? Body { get; }
+        public ImmutableArray<ReplayChunk>? Body { get; }
 
         public string FileName => System.IO.Path.GetFileNameWithoutExtension(Path);
         public Player ReplaySaver => Players[_replaySaverIndex];
@@ -119,7 +122,7 @@ namespace AnotherReplayReader.ReplayFile
                 Players = entries["S"].Split(':')
                     .TakeWhile(x => !string.IsNullOrWhiteSpace(x) && x[0] != 'X')
                     .Select(x => new Player(x.Split(',')))
-                    .ToList();
+                    .ToImmutableArray();
             }
             catch (Exception exception)
             {
@@ -219,40 +222,7 @@ namespace AnotherReplayReader.ReplayFile
             }
 
             _rawHeader = rawHeader;
-            Body = body;
+            Body = body.ToImmutableArray();
-        }
-
-        public Dictionary<byte, int[]> GetCommandCounts()
-        {
-            if (Body is null)
-            {
-                throw new InvalidOperationException("Replay body must be parsed before retrieving command chunks");
-            }
-
-            var playerCommands = new Dictionary<byte, int[]>();
-
-            foreach (var chunk in Body)
-            {
-                if (chunk.Type != 1)
-                {
-                    continue;
-                }
-
-                foreach (var command in CommandChunk.Parse(chunk))
-                {
-                    var commandCount = playerCommands.TryGetValue(command.CommandId, out var current) ? current : new int[Players.Count];
-                    if (command.PlayerIndex >= commandCount.Length) // unknown or unparsable command?
-                    {
-                        commandCount = commandCount
-                            .Concat(new int[command.PlayerIndex - commandCount.Length + 1])
-                            .ToArray();
-                    }
-                    commandCount[command.PlayerIndex] = commandCount[command.PlayerIndex] + 1;
-                    playerCommands[command.CommandId] = commandCount;
-                }
-            }
-
-            return playerCommands;
         }
 
         public Replay CloneHeader()
@@ -283,7 +253,7 @@ namespace AnotherReplayReader.ReplayFile
             string size = GetSizeString(Size);
             string length = Length?.ToString() ?? "录像已损坏，请先修复录像";
 
-            var replaySaver = _replaySaverIndex < Players.Count
+            var replaySaver = _replaySaverIndex < Players.Length
                 ? ReplaySaver.PlayerName
                 : "[无法获取保存录像的玩家]";
 
@@ -298,7 +268,7 @@ namespace AnotherReplayReader.ReplayFile
             writer.WriteLine("玩家列表：");
             foreach (var player in Players)
             {
-                if (player == Players.Last() && player.PlayerName.Equals("post Commentator"))
+                if (player == Players.Last() && player.PlayerName.Equals(PostCommentator))
                 {
                     break;
                 }

ReplayFile/ReplayChunk.cs

@@ -1,4 +1,5 @@
-using System.IO;
+using System;
+using System.IO;
 
 namespace AnotherReplayReader.ReplayFile
 {
@@ -9,6 +10,8 @@ namespace AnotherReplayReader.ReplayFile
         public uint TimeCode { get; }
         public byte Type { get; }
 
+        public TimeSpan Time => TimeSpan.FromSeconds(TimeCode / Replay.FrameRate);
+
         public ReplayChunk(uint timeCode, BinaryReader reader)
         {
             TimeCode = timeCode; // reader.ReadUInt32();

ReplayFile/ReplayFooter.cs

@@ -20,7 +20,7 @@ namespace AnotherReplayReader.ReplayFile
         private readonly byte[] _data;
 
         public uint FinalTimeCode { get; }
-        public TimeSpan ReplayLength => TimeSpan.FromSeconds(FinalTimeCode / 15.0);
+        public TimeSpan ReplayLength => TimeSpan.FromSeconds(FinalTimeCode / Replay.FrameRate);
 
         public ReplayFooter(BinaryReader reader, ReplayFooterOption option)
         {