fix exploitable support powers

OpenRA.Game/Traits/SupportPowers/SupportPower.cs

@@ -50,7 +50,7 @@ namespace OpenRA.Traits
 		public int TotalTime { get { return (int)(Info.ChargeTime * 60 * 25); } }
 		public bool IsUsed;
 		public bool IsAvailable;
-		public bool IsReady { get { return RemainingTime == 0; } }
+		public bool IsReady { get { return IsAvailable && RemainingTime == 0; } }
 		public readonly Player Owner;
 
 		bool notifiedCharging;

OpenRA.Mods.RA/AirstrikePower.cs

@@ -42,6 +42,8 @@ namespace OpenRA.Mods.RA
 
 		public void ResolveOrder(Actor self, Order order)
 		{
+			if (!IsAvailable) return;
+
 			if (order.OrderString == "Airstrike")
 			{
 				var startPos = Owner.World.ChooseRandomEdgeCell();

OpenRA.Mods.RA/IronCurtainPower.cs

@@ -44,6 +44,8 @@ namespace OpenRA.Mods.RA
 
 		public void ResolveOrder(Actor self, Order order)
 		{
+			if (!IsAvailable) return;
+
 			if (order.OrderString == "IronCurtain")
 			{
 				if (self.Owner == self.World.LocalPlayer)

OpenRA.Mods.RA/ParatroopersPower.cs

@@ -45,6 +45,8 @@ namespace OpenRA.Mods.RA
 
 		public void ResolveOrder(Actor self, Order order)
 		{
+			if (!IsAvailable) return;
+
 			if (order.OrderString == "ParatroopersActivate")
 			{
 				if (self.Owner == self.World.LocalPlayer)

OpenRA.Mods.RA/SonarPulsePower.cs

@@ -41,6 +41,8 @@ namespace OpenRA.Mods.RA
 
 		public void ResolveOrder(Actor self, Order order)
 		{
+			if (!IsAvailable) return;
+
 			if (order.OrderString == "SonarPulse")
 			{
 				// TODO: Reveal submarines

OpenRA.Mods.RA/SpyPlanePower.cs

@@ -44,6 +44,8 @@ namespace OpenRA.Mods.RA
 
 		public void ResolveOrder(Actor self, Order order)
 		{
+			if (!IsAvailable) return;
+
 			if (order.OrderString == "SpyPlane")
 			{
 				FinishActivate();

OpenRA.Mods.RA/SupportPowers/ChronoshiftPower.cs

@@ -35,16 +35,12 @@ namespace OpenRA.Mods.RA.SupportPowers
 	class ChronoshiftPower : SupportPower, IResolveOrder
 	{	
 		public ChronoshiftPower(Actor self, ChronoshiftPowerInfo info) : base(self, info) { }
-		protected override void OnBeginCharging() { Sound.PlayToPlayer(Owner, "chrochr1.aud"); }
+		protected override void OnActivate() { Game.controller.orderGenerator = new SelectTarget(); }
-		protected override void OnFinishCharging() { Sound.PlayToPlayer(Owner, "chrordy1.aud"); }
-		protected override void OnActivate()
-		{
-			Game.controller.orderGenerator = new SelectTarget();
-			Sound.Play("slcttgt1.aud");
-		}
 
 		public void ResolveOrder(Actor self, Order order)
 		{
+			if (!IsAvailable) return;
+
 			if (order.OrderString == "ChronosphereSelect" && self.Owner == self.World.LocalPlayer)
 			{
 				Game.controller.orderGenerator = new SelectDestination(order.TargetActor);

OpenRA.Mods.RA/SupportPowers/NukePower.cs

@@ -43,6 +43,8 @@ namespace OpenRA.Mods.RA.SupportPowers
 
 		public void ResolveOrder(Actor self, Order order)
 		{
+			if (!IsAvailable) return;
+
 			if (order.OrderString == "NuclearMissile")
 			{
 				var silo = self.World.Queries.OwnedBy[self.Owner]

mods/ra/system.yaml

@@ -22,6 +22,9 @@ Player:
 		TechLevel: 12
 		Duration: 3
 		KillCargo: yes
+		SelectTargetSound: slcttgt1.aud
+		BeginChargeSound: chrochr1.aud
+		EndChargeSound: chrordy1.aud
 	IronCurtainPower:
 		Image: infxicon
 		ChargeTime: 11