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/AcceptsDeliveredCash.cs

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+#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 System.Collections.Frozen;
+using System.Collections.Immutable;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[Desc("Tag trait for actors with `DeliversCash`.")]
+	public class AcceptsDeliveredCashInfo : TraitInfo
+	{
+		[Desc("Accepted `DeliversCash` types. Leave empty to accept all types.")]
+		public readonly FrozenSet<string> ValidTypes = FrozenSet<string>.Empty;
+
+		[Desc("Player relationships the owner of the delivering actor needs.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally;
+
+		[Desc("Play a randomly selected sound from this list when accepting cash.")]
+		public readonly ImmutableArray<string> Sounds = [];
+
+		public override object Create(ActorInitializer init) { return new AcceptsDeliveredCash(this); }
+	}
+
+	public class AcceptsDeliveredCash : INotifyCashTransfer
+	{
+		readonly AcceptsDeliveredCashInfo info;
+
+		public AcceptsDeliveredCash(AcceptsDeliveredCashInfo info)
+		{
+			this.info = info;
+		}
+
+		void INotifyCashTransfer.OnAcceptingCash(Actor self, Actor donor)
+		{
+			if (info.Sounds.Length > 0)
+				Game.Sound.Play(SoundType.World, info.Sounds, self.World, self.CenterPosition);
+		}
+
+		void INotifyCashTransfer.OnDeliveringCash(Actor self, Actor acceptor) { }
+	}
+}