Initial GpsSatellite support

OpenRa.Game/OpenRa.Game.csproj

@@ -216,6 +216,7 @@
     <Compile Include="Traits\Explodes.cs" />
     <Compile Include="Traits\ChronoshiftDeploy.cs" />
     <Compile Include="Traits\Fake.cs" />
+    <Compile Include="Traits\GpsSatellite.cs" />
     <Compile Include="Traits\Harvester.cs" />
     <Compile Include="Traits\Helicopter.cs" />
     <Compile Include="Traits\InvisibleToOthers.cs" />

OpenRa.Game/Shroud.cs

@@ -26,6 +26,20 @@ namespace OpenRa.Game
 
 			dirty = true;
 		}
+		
+		public void RevealAll()
+		{
+			for (int x = 0; x < 128; x++)
+				for (int y = 0; y < 128; y++)
+					explored[x, y] = true;
+		}
+		
+		public void HideAll()
+		{
+			for (int x = 0; x < 128; x++)
+				for (int y = 0; y < 128; y++)
+					explored[x, y] = false;
+		}
 
 		Sprite ChooseShroud(int i, int j)
 		{

OpenRa.Game/Traits/GpsSatellite.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OpenRa.Game.Traits
+{
+	class GpsSatellite
+	{
+		public GpsSatellite(Actor self)
+		{
+			// TODO: connect this to a special power that calls Activate();
+			Activate(self);
+		}
+		
+		public void Activate(Actor self)
+		{
+			// TODO: Launch satellite
+			self.Owner.Shroud.RevealAll();
+		}
+	}
+}