AT and AP mine traits

OpenRa.Game/Traits/APMine.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using OpenRa.Game.GameRules;
+using OpenRa.Game.Effects;
+namespace OpenRa.Game.Traits
+{
+	class APMine : ICrushable
+	{
+		readonly Actor self;
+		public APMine(Actor self)
+		{
+			this.self = self;
+		}
+
+		public void OnCrush(Actor crusher)
+		{
+			Game.world.AddFrameEndTask(_ =>
+			{
+				Game.world.Remove(self);
+				Game.world.Add(new Explosion(self.CenterLocation.ToInt2(), 5, false));
+				crusher.InflictDamage(crusher, Rules.General.APMineDamage, Rules.WarheadInfo["APMine"]);
+			});
+		}
+		
+		public bool IsPathableCrush(UnitMovementType umt, Player player)
+		{
+			return (player != Game.LocalPlayer); // Units should avoid friendly mines
+		}
+		
+		public bool IsCrushableBy(UnitMovementType umt, Player player)
+		{
+			// Mines should explode indiscriminantly of player
+			switch (umt)
+			{
+				case UnitMovementType.Foot: return true;
+				default: return false;
+			}
+		}
+	}
+}