#region Copyright & License Information
/*
 * Copyright 2007-2010 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 LICENSE.
 */
#endregion

using OpenRA.Traits;

namespace OpenRA.Mods.RA
{
	class GivesExperienceInfo : TraitInfo<GivesExperience> { public readonly int Experience = -1;	}

	class GivesExperience : INotifyDamage
	{
		public void Damaged(Actor self, AttackInfo e)
		{
			if (e.DamageState == DamageState.Dead)
			{	
				// Prevent TK from giving exp
				if (e.Attacker == null || e.Attacker.Owner.Stances[ self.Owner ] == Stance.Ally )
					return;

				var info = self.Info.Traits.Get<GivesExperienceInfo>();
				var valued = self.Info.Traits.GetOrDefault<ValuedInfo>();

				var exp = info.Experience >= 0
					? info.Experience
					: valued != null ? valued.Cost : 0;

				var killer = e.Attacker.TraitOrDefault<GainsExperience>();
				if (killer != null)
					killer.GiveExperience(exp);
			}
		}
	}
}