85 lines
2.2 KiB
C#
85 lines
2.2 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;
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using OpenRA.Primitives;
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namespace OpenRA.Platforms.Default
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{
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static class MultiTapDetection
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{
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static readonly Cache<(Keycode Key, Modifiers Mods), TapHistory> KeyHistoryCache =
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new(_ => new TapHistory(DateTime.Now - TimeSpan.FromSeconds(1)));
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static readonly Cache<byte, TapHistory> ClickHistoryCache =
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new(_ => new TapHistory(DateTime.Now - TimeSpan.FromSeconds(1)));
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public static int DetectFromMouse(byte button, int2 xy)
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{
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return ClickHistoryCache[button].GetTapCount(xy);
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}
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public static int InfoFromMouse(byte button)
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{
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return ClickHistoryCache[button].LastTapCount();
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}
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public static int DetectFromKeyboard(Keycode key, Modifiers mods)
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{
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return KeyHistoryCache[(key, mods)].GetTapCount(int2.Zero);
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}
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public static int InfoFromKeyboard(Keycode key, Modifiers mods)
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{
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return KeyHistoryCache[(key, mods)].LastTapCount();
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}
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}
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sealed class TapHistory
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{
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public (DateTime Time, int2 Location) FirstRelease, SecondRelease, ThirdRelease;
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public TapHistory(DateTime now)
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{
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FirstRelease = SecondRelease = ThirdRelease = (now, int2.Zero);
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}
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static bool CloseEnough((DateTime Time, int2 Location) a, (DateTime Time, int2 Location) b)
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{
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return a.Time - b.Time < TimeSpan.FromMilliseconds(250)
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&& (a.Location - b.Location).Length < 4;
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}
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public int GetTapCount(int2 xy)
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{
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FirstRelease = SecondRelease;
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SecondRelease = ThirdRelease;
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ThirdRelease = (DateTime.Now, xy);
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if (!CloseEnough(ThirdRelease, SecondRelease))
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return 1;
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if (!CloseEnough(SecondRelease, FirstRelease))
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return 2;
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return 3;
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}
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public int LastTapCount()
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{
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if (!CloseEnough(ThirdRelease, SecondRelease))
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return 1;
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if (!CloseEnough(SecondRelease, FirstRelease))
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return 2;
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return 3;
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}
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}
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}
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