Add TransformsInto* traits to trigger construction yard undeploy.

OpenRA.Mods.Common/Traits/Buildings/TransformsIntoEntersTunnels.cs

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+#region Copyright & License Information
+/*
+ * Copyright 2007-2019 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 System;
+using System.Collections.Generic;
+using System.Linq;
+using OpenRA.Activities;
+using OpenRA.Mods.Common.Activities;
+using OpenRA.Mods.Common.Orders;
+using OpenRA.Primitives;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[Desc("Add to a building to expose a move cursor that triggers Transforms and issues an enter tunnel order to the transformed actor.")]
+	public class TransformsIntoEntersTunnelsInfo : ConditionalTraitInfo, Requires<TransformsInfo>
+	{
+		public readonly string EnterCursor = "enter";
+		public readonly string EnterBlockedCursor = "enter-blocked";
+
+		[VoiceReference]
+		public readonly string Voice = "Action";
+
+		public override object Create(ActorInitializer init) { return new TransformsIntoEntersTunnels(this); }
+	}
+
+	public class TransformsIntoEntersTunnels : ConditionalTrait<TransformsIntoEntersTunnelsInfo>, IIssueOrder, IResolveOrder, IOrderVoice
+	{
+		Transforms[] transforms;
+
+		public TransformsIntoEntersTunnels(TransformsIntoEntersTunnelsInfo info)
+			: base(info) { }
+
+		protected override void Created(Actor self)
+		{
+			transforms = self.TraitsImplementing<Transforms>().ToArray();
+			base.Created(self);
+		}
+
+		IEnumerable<IOrderTargeter> IIssueOrder.Orders
+		{
+			get
+			{
+				if (!IsTraitDisabled)
+					yield return new EntersTunnels.EnterTunnelOrderTargeter(Info.EnterCursor, Info.EnterBlockedCursor);
+			}
+		}
+
+		Order IIssueOrder.IssueOrder(Actor self, IOrderTargeter order, Target target, bool queued)
+		{
+			if (order.OrderID == "EnterTunnel")
+				return new Order(order.OrderID, self, target, queued) { SuppressVisualFeedback = true };
+
+			return null;
+		}
+
+		void IResolveOrder.ResolveOrder(Actor self, Order order)
+		{
+			if (IsTraitDisabled || order.OrderString != "EnterTunnel" || order.Target.Type != TargetType.Actor)
+				return;
+
+			var tunnel = order.Target.Actor.TraitOrDefault<TunnelEntrance>();
+			if (tunnel == null || !tunnel.Exit.HasValue)
+				return;
+
+			var currentTransform = self.CurrentActivity as Transform;
+			var transform = transforms.FirstOrDefault(t => !t.IsTraitDisabled && !t.IsTraitPaused);
+			if (transform == null && currentTransform == null)
+				return;
+
+			self.SetTargetLine(order.Target, Color.Green);
+
+			var activity = currentTransform ?? transform.GetTransformActivity(self);
+			activity.Queue(self, new IssueOrderAfterTransform(order.OrderString, order.Target));
+
+			if (currentTransform == null)
+				self.QueueActivity(order.Queued, activity);
+		}
+
+		string IOrderVoice.VoicePhraseForOrder(Actor self, Order order)
+		{
+			return order.OrderString == "EnterTunnel" ? Info.Voice : null;
+		}
+	}
+}