split out hardcoded editor tools into ITool impls

OpenRA.Editor/ActorTool.cs

@@ -0,0 +1,45 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2010 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 LICENSE.
+ */
+#endregion
+
+using System.Linq;
+using OpenRA.FileFormats;
+
+using SGraphics = System.Drawing.Graphics;
+
+namespace OpenRA.Editor
+{
+	class ActorTool : ITool
+	{
+		ActorTemplate Actor;
+		public ActorTool(ActorTemplate actor) { this.Actor = actor; }
+
+		public void Preview(Surface surface, SGraphics g)
+		{
+			/* todo: include the player 
+				* in the brush so we can color new buildings too */
+
+			surface.DrawActor(g, surface.GetBrushLocation(), Actor, null);
+		}
+
+		public void Apply(Surface surface)
+		{
+			if (surface.Map.Actors.Any(a => a.Value.Location() == surface.GetBrushLocation()))
+				return;
+
+			var owner = "Neutral";
+			var id = surface.NextActorName();
+			surface.Map.Actors[id] = new ActorReference(Actor.Info.Name.ToLowerInvariant())
+			{
+				new LocationInit( surface.GetBrushLocation() ),
+				new OwnerInit( owner)
+			};
+		}
+	}
+}