GPS satellite launch animation

OpenRa.Game/Effects/GpsSatellite.cs

@@ -0,0 +1,33 @@
+using System.Collections.Generic;
+using OpenRa.Game.Graphics;
+using OpenRa.Game.Traits;
+
+namespace OpenRa.Game.Effects
+{
+	class GpsSatellite : IEffect
+	{
+		readonly float heightPerTick = 10;
+		float2 offset;
+		Animation anim = new Animation("sputnik");
+
+		public GpsSatellite(float2 offset)
+		{
+			this.offset = offset;
+			anim.PlayRepeating("idle");
+		}
+
+		public void Tick()
+		{
+			anim.Tick();
+			offset.Y -= heightPerTick;
+			
+			if (offset.Y < 0)
+				Game.world.AddFrameEndTask(w => w.Remove(this));
+		}
+		
+		public IEnumerable<Renderable> Render()
+		{
+			yield return new Renderable(anim.Image,offset, PaletteType.Gold);
+		}
+	}
+}

OpenRa.Game/Effects/SatelliteLaunch.cs

@@ -0,0 +1,37 @@
+using System.Collections.Generic;
+using OpenRa.Game.Graphics;
+using OpenRa.Game.Traits;
+
+namespace OpenRa.Game.Effects
+{
+	class SatelliteLaunch : IEffect
+	{
+		int frame = 0;
+		Actor a;
+		Animation doors = new Animation("atek");
+		float2 doorOffset = new float2(-4,0);
+
+		public SatelliteLaunch(Actor a)
+		{
+			this.a = a;
+			doors.PlayThen("active",
+				() => Game.world.AddFrameEndTask(w => w.Remove(this)));
+		}
+
+		public void Tick()
+		{
+			doors.Tick();
+			
+			if (++frame == 19)
+			{
+				Game.world.AddFrameEndTask(w => w.Add(new GpsSatellite(a.CenterLocation - .5f * doors.Image.size + doorOffset)));
+			}
+		}
+		
+		public IEnumerable<Renderable> Render()
+		{
+			yield return new Renderable(doors.Image,
+				a.CenterLocation - .5f * doors.Image.size + doorOffset, PaletteType.Gold);
+		}
+	}
+}

OpenRa.Game/OpenRa.Game.csproj

@@ -83,10 +83,12 @@
     <Compile Include="Effects\Corpse.cs" />
     <Compile Include="Effects\DelayedAction.cs" />
     <Compile Include="Effects\FlashTarget.cs" />
+    <Compile Include="Effects\GpsSatellite.cs" />
     <Compile Include="Effects\InvulnEffect.cs" />
     <Compile Include="Effects\MoveFlash.cs" />
     <Compile Include="Effects\PowerDownIndicator.cs" />
     <Compile Include="Effects\RepairIndicator.cs" />
+    <Compile Include="Effects\SatelliteLaunch.cs" />
     <Compile Include="Effects\Smoke.cs" />
     <Compile Include="Effects\TeslaZap.cs" />
     <Compile Include="Exts.cs" />

OpenRa.Game/Shroud.cs

@@ -32,6 +32,7 @@ namespace OpenRa.Game
 			for (int x = 0; x < 128; x++)
 				for (int y = 0; y < 128; y++)
 					explored[x, y] = true;
+			dirty = true;
 		}
 		
 		public void HideAll()
@@ -39,6 +40,7 @@ namespace OpenRa.Game
 			for (int x = 0; x < 128; x++)
 				for (int y = 0; y < 128; y++)
 					explored[x, y] = false;
+			dirty = true;
 		}
 
 		Sprite ChooseShroud(int i, int j)

OpenRa.Game/Traits/GpsSatellite.cs

@@ -1,22 +1,29 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
+using OpenRa.Game.Effects;
 
 namespace OpenRa.Game.Traits
 {
-	class GpsSatellite
+	class GpsSatellite : ITick
 	{
-		public GpsSatellite(Actor self)
-		{
-			// TODO: connect this to a special power that calls Activate();
-			Activate(self);
-		}
+		int frame = 0;
+		int revealTicks = 30 * 25; // 30 second delay between launch and reveal
+		bool fired = false;
 		
+		public GpsSatellite(Actor self) {}
+		public void Tick(Actor self)
+		{
+			// HACK: Launch after 5 seconds
+			if (++frame == 150)
+				Activate(self);
+
+			if (fired && --revealTicks == 0)
+			{
+				self.Owner.Shroud.RevealAll();
+			}
+		}
 		public void Activate(Actor self)
 		{
-			// TODO: Launch satellite
-			self.Owner.Shroud.RevealAll();
+			Game.world.AddFrameEndTask(w => w.Add(new SatelliteLaunch(self)));
+			fired = true;
 		}
 	}
 }

sequences.xml

@@ -94,6 +94,7 @@
     <sequence name="idle" start="0" />
     <sequence name="damaged-idle" start="1" />
     <sequence name="make" start="0" length="*" src="atekmake" />
+	<sequence name="active" start="0" length="*" src="sputdoor" />
   </unit>
   <!-- soviet tech center -->
   <unit name="stek">
@@ -1030,4 +1031,7 @@
     <sequence name="left-normal" start="0" length="1" />
     <sequence name="left-pressed" start="1" length="1" />
   </unit>
+  <unit name="sputnik">
+	  <sequence name="idle" start="0" length="4" />
+  </unit>
 </sequences>