SamplyGame.Background.RotateBackground C# (CSharp) Method

		async void RotateBackground() 
		{
			while (true)
			{
				// calculate positions using Law of sines
				var x = BackgroundScale * (float)Math.Sin(MathHelper.DegreesToRadians(90 - BackgroundRotationX));
				var y = BackgroundScale * (float)Math.Sin(MathHelper.DegreesToRadians(BackgroundRotationX)) + FlightHeight;

				var moveTo = x + 1f; //a small adjusment to hide that gap between two tiles
				var h = (float)Math.Tan(MathHelper.DegreesToRadians(BackgroundRotationX)) * moveTo;
				await Task.WhenAll(frontTile.RunActionsAsync(new MoveBy(1 / BackgroundSpeed, new Vector3(0, -moveTo, -h))),
					rearTile.RunActionsAsync(new MoveBy(1 / BackgroundSpeed, new Vector3(0, -moveTo, -h))));

				//switch tiles
				var tmp = frontTile;
				frontTile = rearTile;
				rearTile = tmp;

				rearTile.Position = new Vector3(0, x, y);
			}
		}