4a04f8df83
The last 50 valid commands starting with / are saved to memory. Regular chat messages are not saved to prevent spam. The command history persists across single-player and multiplayer games. Press arrow up/down to show the previously typed commands within the current OpenRA session.
90 lines
1.7 KiB
C#
90 lines
1.7 KiB
C#
#region Copyright & License Information
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/*
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* Copyright (c) The OpenRA Developers and Contributors
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System.Collections.Generic;
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namespace OpenRA.Mods.Common.Widgets.Logic
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{
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public sealed class CommandHistory
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{
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const int MaxHistorySize = 50;
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static CommandHistory instance;
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static readonly object LockObject = new();
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readonly List<string> history = [];
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int currentIndex = -1;
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CommandHistory() { }
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public static CommandHistory Instance
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{
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get
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{
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if (instance == null)
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{
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lock (LockObject)
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{
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instance ??= new CommandHistory();
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}
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}
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return instance;
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}
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}
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public void AddCommand(string command)
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{
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if (string.IsNullOrWhiteSpace(command) || !command.StartsWith('/'))
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return;
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var trimmedCommand = command.Trim();
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history.RemoveAll(c => c == trimmedCommand);
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history.Insert(0, trimmedCommand);
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if (history.Count > MaxHistorySize)
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history.RemoveAt(history.Count - 1);
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currentIndex = -1;
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}
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public string GetPrevious()
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{
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if (history.Count == 0)
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return null;
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if (currentIndex < history.Count - 1)
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currentIndex++;
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return history[currentIndex];
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}
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public string GetNext()
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{
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if (history.Count == 0)
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return null;
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if (currentIndex > 0)
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{
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currentIndex--;
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return history[currentIndex];
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}
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if (currentIndex == 0)
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currentIndex = -1;
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return null;
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}
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public void Reset()
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{
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currentIndex = -1;
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}
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}
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}
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