Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

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

@@ -0,0 +1,46 @@
+#region Copyright & License Information
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * 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("Modifies the power usage/output of this actor.")]
+	public class PowerMultiplierInfo : ConditionalTraitInfo
+	{
+		[FieldLoader.Require]
+		[Desc("Percentage modifier to apply.")]
+		public readonly int Modifier = 100;
+
+		public override object Create(ActorInitializer init) { return new PowerMultiplier(init.Self, this); }
+	}
+
+	public class PowerMultiplier : ConditionalTrait<PowerMultiplierInfo>, IPowerModifier, INotifyOwnerChanged
+	{
+		PowerManager power;
+
+		public PowerMultiplier(Actor self, PowerMultiplierInfo info)
+			: base(info)
+		{
+			power = self.Owner.PlayerActor.Trait<PowerManager>();
+		}
+
+		protected override void TraitEnabled(Actor self) { power.UpdateActor(self); }
+		protected override void TraitDisabled(Actor self) { power.UpdateActor(self); }
+
+		int IPowerModifier.GetPowerModifier() { return IsTraitDisabled ? 100 : Info.Modifier; }
+
+		void INotifyOwnerChanged.OnOwnerChanged(Actor self, Player oldOwner, Player newOwner)
+		{
+			power = newOwner.PlayerActor.Trait<PowerManager>();
+		}
+	}
+}