Move *ResourceWarheads to Common, move warheads to Common.Warheads namespace

OpenRA.Mods.Common/Warheads/CreateResourceWarhead.cs

@@ -0,0 +1,60 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2014 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 COPYING.
+ */
+#endregion
+
+using System.Collections.Generic;
+using System.Linq;
+using OpenRA.Effects;
+using OpenRA.GameRules;
+using OpenRA.Mods.Common.Traits;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Warheads
+{
+	public class CreateResourceWarhead : Warhead
+	{
+		[Desc("Size of the area. The resources are seeded within this area.", "Provide 2 values for a ring effect (outer/inner).")]
+		public readonly int[] Size = { 0, 0 };
+
+		[Desc("Will this splatter resources and which?")]
+		public readonly string AddsResourceType = null;
+
+		// TODO: Allow maximum resource splatter to be defined. (Per tile, and in total).
+
+		public override void DoImpact(Target target, Actor firedBy, IEnumerable<int> damageModifiers)
+		{
+			if (string.IsNullOrEmpty(AddsResourceType))
+				return;
+
+			var world = firedBy.World;
+			var targetTile = world.Map.CellContaining(target.CenterPosition);
+			var resLayer =  world.WorldActor.Trait<ResourceLayer>();
+
+			var minRange = (Size.Length > 1 && Size[1] > 0) ? Size[1] : 0;
+			var allCells = world.Map.FindTilesInAnnulus(targetTile, minRange, Size[0]);
+
+			var resourceType = world.WorldActor.TraitsImplementing<ResourceType>()
+				.FirstOrDefault(t => t.Info.Name == AddsResourceType);
+
+			if (resourceType == null)
+				Log.Write("debug", "Warhead defines an invalid resource type '{0}'".F(AddsResourceType));
+			else
+			{
+				foreach (var cell in allCells)
+				{
+					if (!resLayer.CanSpawnResourceAt(resourceType, cell))
+						continue;
+
+					var splash = world.SharedRandom.Next(1, resourceType.Info.MaxDensity - resLayer.GetResourceDensity(cell));
+					resLayer.AddResource(resourceType, cell, splash);
+				}
+			}
+		}
+	}
+}