Added multiplier modifier traits, removing GainsStatUpgrades, InvulnerabilityUpgrade, & Invulnerable.

OpenRA.Mods.Common/Traits/Multipliers/DamageMultiplier.cs

@@ -0,0 +1,31 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2015 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 OpenRA.GameRules;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[Desc("Damage taken by this actor is multiplied based on upgrade level.",
+		"Decrease to increase actor's apparent strength.",
+		"Use 0 to make actor invulnerable.")]
+	public class DamageMultiplierInfo : UpgradeMultiplierTraitInfo, ITraitInfo
+	{
+		public object Create(ActorInitializer init) { return new DamageMultiplier(this, init.Self.Info.Name); }
+	}
+
+	public class DamageMultiplier : UpgradeMultiplierTrait, IDamageModifier
+	{
+		public DamageMultiplier(DamageMultiplierInfo info, string actorType)
+			: base(info, "DamageMultiplier", actorType) { }
+
+		public int GetDamageModifier(Actor attacker, IWarhead warhead) { return GetModifier(); }
+	}
+}