Replace AnnounceOnBuild with VoiceAnnouncement.

OpenRA.Mods.Common/Traits/Sound/VoiceAnnouncement.cs

@@ -0,0 +1,61 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2018 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, 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.Sound
+{
+	[Desc("Plays a voice clip when the trait is enabled.")]
+	public class VoiceAnnouncementInfo : ConditionalTraitInfo
+	{
+		[FieldLoader.Require]
+		[Desc("Voice to play.")]
+		[VoiceReference] public readonly string Voice = null;
+
+		[Desc("Player stances who can hear this voice.")]
+		public readonly Stance ValidStances = Stance.Ally | Stance.Neutral | Stance.Enemy;
+
+		[Desc("Play the voice to the owning player even if Stance.Ally is not included in ValidStances.")]
+		public readonly bool PlayToOwner = true;
+
+		[Desc("Disable the announcement after it has been triggered.")]
+		public readonly bool OneShot = false;
+
+		public override object Create(ActorInitializer init) { return new VoiceAnnouncement(this); }
+	}
+
+	public class VoiceAnnouncement : ConditionalTrait<VoiceAnnouncementInfo>
+	{
+		bool triggered;
+
+		public VoiceAnnouncement(VoiceAnnouncementInfo info)
+			: base(info) { }
+
+		protected override void TraitEnabled(Actor self)
+		{
+			if (IsTraitDisabled)
+				return;
+
+			if (Info.OneShot && triggered)
+				return;
+
+			triggered = true;
+			var player = self.World.LocalPlayer ?? self.World.RenderPlayer;
+			if (player == null)
+				return;
+
+			if (Info.ValidStances.HasStance(self.Owner.Stances[player]))
+				self.PlayVoice(Info.Voice);
+			else if (Info.PlayToOwner && self.Owner == player)
+				self.PlayVoice(Info.Voice);
+		}
+	}
+}