Tie Minimap to ProvidesRadar trait

OpenRa.Game/Traits/ProvidesRadar.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OpenRa.Game.Traits
+{
+	class ProvidesRadar
+	{
+		Actor self;
+		public ProvidesRadar(Actor self)
+		{
+			this.self = self;
+		}
+		
+		public bool IsActive()
+		{
+			// TODO: Check for nearby MRJ
+			
+			// Check if powered
+			var b = self.traits.Get<Building>();
+			if (b != null && b.InsuffientPower())
+				return false;
+			
+			return true;
+		}
+	}
+}