#67 fixed: spinners work again

OpenRa.Game/GameRules/UnitInfo.cs

@@ -50,6 +50,7 @@ namespace OpenRa.Game.GameRules
 		public readonly int[] PrimaryOffset = { 0, 0 };
 		public readonly int[] SecondaryOffset = null;
 		public readonly int Recoil = 0;
+		public readonly int[] ScreenSpaceTurretOffset = { 0, 0 };
 
 		public UnitInfo(string name) { Name = name; }
 

OpenRa.Game/Traits/RenderUnitTurreted.cs

@@ -16,7 +16,11 @@ namespace OpenRa.Game.Traits
 			: base(self)
 		{
 			turretAnim = new Animation(self.unitInfo.Name);
-			turretAnim.PlayFetchIndex("turret", () => self.traits.Get<Turreted>().turretFacing / 8);
+			if (self.traits.Contains<Turreted>())
+				turretAnim.PlayFetchIndex("turret", 
+					() => self.traits.Get<Turreted>().turretFacing / 8);
+			else
+				turretAnim.PlayRepeating("turret");		/* not really a turret; it's a spinner */
 		}
 
 		public override IEnumerable<Pair<Sprite, float2>> Render(Actor self)

OpenRa.Game/Traits/Util.cs

@@ -87,7 +87,9 @@ namespace OpenRa.Game.Traits
 			var bodyFacing = self.traits.Get<Mobile>().facing;
 			var quantizedFacing = bodyFacing - bodyFacing % ru.anim.CurrentSequence.Length;
 
-			return (RotateVectorByFacing(new float2(offset[0], offset[1]), quantizedFacing, .7f) + GetRecoil(self, recoil));
+			return (RotateVectorByFacing(new float2(offset[0], offset[1]), quantizedFacing, .7f) + GetRecoil(self, recoil))
+				+ new float2(self.unitInfo.ScreenSpaceTurretOffset[0],
+					self.unitInfo.ScreenSpaceTurretOffset[1]);
 		}
 
 		public static Pair<Sprite, float2> Centered(Sprite s, float2 location)