Remove legacy renderers.

OpenRA.Renderer.Sdl2/MultiTapDetection.cs

@@ -0,0 +1,84 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2013 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made 
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using System;
+using OpenRA;
+using OpenRA.Primitives;
+
+namespace OpenRA.Renderer.Sdl2
+{
+	public static class MultiTapDetection
+	{
+		static Cache<Keycode, TapHistory> keyHistoryCache =
+			new Cache<Keycode, TapHistory>(_ => new TapHistory(DateTime.Now - TimeSpan.FromSeconds(1)));
+		static Cache<byte, TapHistory> clickHistoryCache =
+			new Cache<byte, TapHistory>(_ => new TapHistory(DateTime.Now - TimeSpan.FromSeconds(1)));
+
+		public static int DetectFromMouse(byte button, int2 xy)
+		{
+			return clickHistoryCache[button].GetTapCount(xy);
+		}
+
+		public static int InfoFromMouse(byte button)
+		{
+			return clickHistoryCache[button].LastTapCount();
+		}
+
+		public static int DetectFromKeyboard(Keycode key)
+		{
+			return keyHistoryCache[key].GetTapCount(int2.Zero);
+		}
+
+		public static int InfoFromKeyboard(Keycode key)
+		{
+			return keyHistoryCache[key].LastTapCount();
+		}
+	}
+
+	class TapHistory
+	{
+		public Pair<DateTime, int2> FirstRelease, SecondRelease, ThirdRelease;
+
+		public TapHistory(DateTime now)
+		{
+			FirstRelease = SecondRelease = ThirdRelease = Pair.New(now, int2.Zero);
+		}
+
+		static bool CloseEnough(Pair<DateTime, int2> a, Pair<DateTime, int2> b)
+		{
+			return a.First - b.First < TimeSpan.FromMilliseconds(250)
+				&& (a.Second - b.Second).Length < 4;
+		}
+
+		public int GetTapCount(int2 xy)
+		{
+			FirstRelease = SecondRelease;
+			SecondRelease = ThirdRelease;
+			ThirdRelease = Pair.New(DateTime.Now, xy);
+
+			if (!CloseEnough(ThirdRelease, SecondRelease))
+				return 1;
+			if (!CloseEnough(SecondRelease, FirstRelease))
+				return 2;
+
+			return 3;
+		}
+
+		public int LastTapCount()
+		{
+			if (!CloseEnough(ThirdRelease, SecondRelease))
+				return 1;
+			if (!CloseEnough(SecondRelease, FirstRelease))
+				return 2;
+
+			return 3;
+		}
+	}
+}