Add ExperienceTrickler trait.

OpenRA.Mods.Common/Traits/ExperienceTrickler.cs

@@ -0,0 +1,60 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2019 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, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[Desc("Lets the actor gain experience in a set periodic time.")]
+	public class ExperienceTricklerInfo : PausableConditionalTraitInfo, Requires<GainsExperienceInfo>
+	{
+		[Desc("Number of ticks to wait between giving experience.")]
+		public readonly int Interval = 50;
+
+		[Desc("Number of ticks to wait before giving first experience.")]
+		public readonly int InitialDelay = 0;
+
+		[Desc("Amount of experience to give each time.")]
+		public readonly int Amount = 15;
+
+		public override object Create(ActorInitializer init) { return new ExperienceTrickler(init.Self, this); }
+	}
+
+	public class ExperienceTrickler : PausableConditionalTrait<ExperienceTricklerInfo>, ITick, ISync
+	{
+		readonly ExperienceTricklerInfo info;
+		GainsExperience gainsExperience;
+		[Sync] int ticks;
+
+		public ExperienceTrickler(Actor self, ExperienceTricklerInfo info)
+			: base(info)
+		{
+			this.info = info;
+			ticks = info.InitialDelay;
+			gainsExperience = self.Trait<GainsExperience>();
+		}
+
+		void ITick.Tick(Actor self)
+		{
+			if (IsTraitDisabled)
+				ticks = info.Interval;
+
+			if (IsTraitPaused || IsTraitDisabled)
+				return;
+
+			if (--ticks < 0)
+			{
+				ticks = info.Interval;
+				gainsExperience.GiveExperience(info.Amount);
+			}
+		}
+	}
+}