oops.

OpenRa.Game/Effects/Smoke.cs

@@ -10,13 +10,17 @@ namespace OpenRa.Game.Effects
 	{
 		readonly int2 pos;
 		readonly Animation anim = new Animation("smokey");
+		bool removed;
 
 		public Smoke(int2 pos)
 		{
 			this.pos = pos;
 			anim.PlayThen("idle",
-				() => Game.world.AddFrameEndTask(
-					w => w.Remove(this)));
+				() =>
+				{
+					removed = true;
+					Game.world.AddFrameEndTask(w => w.Remove(this));
+				});
 		}
 
 		public void Tick()
@@ -26,7 +30,8 @@ namespace OpenRa.Game.Effects
 
 		public IEnumerable<Tuple<Sprite, float2, int>> Render()
 		{
-			yield return Tuple.New(anim.Image, pos.ToFloat2() - .5f * anim.Image.size, 0);
+			if (!removed)
+				yield return Tuple.New(anim.Image, pos.ToFloat2() - .5f * anim.Image.size, 0);
 		}
 	}
 }

sequences.xml

@@ -607,6 +607,6 @@
     <sequence name="idle" start="0" length="32" />
   </unit>
   <unit name="smokey">
-    <sequence name="idle" start="0" length="6" />
+    <sequence name="idle" start="0" length="7" />
   </unit>
 </sequences>