converted to GPLv3

OpenRa.Game/Traits/TraitsInterfaces.cs

@@ -1,9 +1,29 @@
-using System.Collections.Generic;
+#region Copyright & License Information
+/*
+ * Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
+ * This file is part of OpenRA.
+ * 
+ *  OpenRA is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  OpenRA is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ * 
+ *  You should have received a copy of the GNU General Public License
+ *  along with OpenRA.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#endregion
+
+using System.Collections.Generic;
 using System.Drawing;
+using OpenRa.FileFormats;
 using OpenRa.GameRules;
 using OpenRa.Graphics;
 using OpenRa.Traits.Activities;
-using OpenRa.FileFormats;
 
 namespace OpenRa.Traits
 {
@@ -105,4 +125,11 @@ namespace OpenRa.Traits
 	public interface INotifySelection { void SelectionChanged(); }
 	public interface ILoadWorldHook { void WorldLoaded(World w); }
 	public interface IOnGameStart { void SpawnStartingUnits(Player p, int2 sp); }
+
+	public interface IActivity
+	{
+		IActivity NextActivity { get; set; }
+		IActivity Tick(Actor self);
+		void Cancel(Actor self);
+	}
 }