Units gain exp for kills and level up

OpenRA.Mods.RA/GainsExperience.cs

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+#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 OpenRA.Traits;
+using System.Linq;
+using System.Collections.Generic;
+namespace OpenRA.Mods.RA
+{
+	public class GainsExperienceInfo : ITraitInfo
+	{
+		//public readonly float[] LevelThresholds = {2,4,8};
+		public readonly float[] LevelThresholds = {1, 1.5f, 2};
+		public object Create(Actor self) { return new GainsExperience(self); }
+	}
+
+	public class GainsExperience
+	{
+		readonly Actor self;
+		readonly List<float> Levels;
+		public GainsExperience(Actor self)
+		{
+			this.self = self;
+			System.Console.WriteLine(self.Info.Name);
+			var cost = self.Info.Traits.Get<ValuedInfo>().Cost;
+			Levels = self.Info.Traits.Get<GainsExperienceInfo>().LevelThresholds.Select(t => t*cost).ToList();
+		}
+		
+		[Sync]
+		int Experience = 0;
+		[Sync]
+		int Level = 0;
+		
+		public void GiveExperience(int amount)
+		{
+			// Already at max level
+			if (Level == Levels.Count() - 1)
+				return;
+			
+			Experience += amount;
+			
+			if (Experience > Levels[Level])
+			{
+				Level++;
+				
+				// TODO: Show an effect or play a sound or something
+				System.Console.WriteLine("{0} became Level {1}",self.Info.Name, Level);
+			}
+		}
+	}
+}