Mostly implemented Sonar Pulse

OpenRa.Game/Traits/SonarPulsePower.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using OpenRa.Orders;
+
+namespace OpenRa.Traits
+{
+	public class SonarPulsePowerInfo : SupportPowerInfo
+	{
+		public override object Create(Actor self) { return new SonarPulsePower(self, this); }
+	}
+
+	public class SonarPulsePower : SupportPower
+	{
+		public SonarPulsePower(Actor self, SonarPulsePowerInfo info) : base(self, info) { }
+
+		protected override void OnBeginCharging() { }
+		protected override void OnFinishCharging() { Sound.Play("pulse1.aud"); }
+		protected override void OnActivate()
+		{
+			// Question: Is this method synced? or does it have to go via an order?
+			
+			// TODO: Reveal submarines
+			
+			// Should this play for all players?
+			Sound.Play("sonpulse.aud");
+			FinishActivate();
+		}
+	}
+}

OpenRa.Game/Traits/SupportPower.cs

@@ -5,7 +5,7 @@ using System.Text;
 
 namespace OpenRa.Traits
 {
-	abstract class SupportPowerInfo : ITraitInfo
+	public abstract class SupportPowerInfo : ITraitInfo
 	{
 		public readonly bool RequiresPower = true;
 		public readonly bool OneShot = false;
@@ -20,7 +20,7 @@ namespace OpenRa.Traits
 		public abstract object Create(Actor self);
 	}
 
-	class SupportPower : ITick
+	public class SupportPower : ITick
 	{
 		public readonly SupportPowerInfo Info;
 		public int RemainingTime { get; private set; }
@@ -58,7 +58,8 @@ namespace OpenRa.Traits
 			}
 			
 			// Do we have enough powered prerequisites?
-			var isPowered = effectivePrereq.Any() && effectivePrereq.All(a => buildings[a].Any(b => !b.traits.Get<Building>().Disabled));
+			// Hack in support for special powers without prereqs
+			var isPowered = (Info.Prerequisites.Count() == 0) ? self.Owner.GetPowerState() == PowerState.Normal : effectivePrereq.Any() && effectivePrereq.All(a => buildings[a].Any(b => !b.traits.Get<Building>().Disabled));
 			
 			if (IsAvailable && (!Info.RequiresPower || isPowered))
 			{