Move Smoke effect, ContrailFader effect, SmudgeLayer and LeaveSmudgeWarhead to Mods.Common

OpenRA.Mods.Common/Warheads/LeaveSmudgeWarhead.cs

@@ -0,0 +1,51 @@
+#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;
+using System.Collections.Generic;
+using System.Linq;
+using OpenRA.Effects;
+using OpenRA.GameRules;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common
+{
+	public class LeaveSmudgeWarhead : Warhead
+	{
+		[Desc("Size of the area. A smudge will be created in each tile.", "Provide 2 values for a ring effect (outer/inner).")]
+		public readonly int[] Size = { 0, 0 };
+
+		[Desc("Type of smudge to apply to terrain.")]
+		public readonly string[] SmudgeType = { };
+
+		public override void DoImpact(Target target, Actor firedBy, IEnumerable<int> damageModifiers)
+		{
+			var world = firedBy.World;
+			var targetTile = world.Map.CellContaining(target.CenterPosition);
+			var smudgeLayers = world.WorldActor.TraitsImplementing<SmudgeLayer>().ToDictionary(x => x.Info.Type);
+
+			var minRange = (Size.Length > 1 && Size[1] > 0) ? Size[1] : 0;
+			var allCells = world.Map.FindTilesInAnnulus(targetTile, minRange, Size[0]);
+
+			// Draw the smudges:
+			foreach (var sc in allCells)
+			{
+				var smudgeType = world.Map.GetTerrainInfo(sc).AcceptsSmudgeType.FirstOrDefault(t => SmudgeType.Contains(t));
+				if (smudgeType == null) continue;
+
+				SmudgeLayer smudgeLayer;
+				if (!smudgeLayers.TryGetValue(smudgeType, out smudgeLayer))
+					throw new NotImplementedException("Unknown smudge type `{0}`".F(smudgeType));
+
+				smudgeLayer.AddSmudge(sc);
+			}
+		}
+	}
+}