"Initial Input Handling"

// This anonymous callback is called when the player moves the left-stick
currentRegisteredGameplayLeftStickEvent = gameIPB.RegisterLeftStickEvent((x, y, _) => {
	switch (currentGameState) {
		case OverallGameState.LevelPlaying:
			float tiltDeadzone = Config.BoardTiltDeadZone;
			float maxAxialTilt = 32767f - tiltDeadzone;
			float tiltFractionX = (Math.Abs(x) - tiltDeadzone)) / maxAxialTilt;
			float tiltFractionY = (Math.Abs(y) - tiltDeadzone)) / maxAxialTilt;
			
			if (x < -tiltDeadzone) {
				TiltGameboard(GameboardTiltDirection.Left, tiltFractionX);
			}
			else if (x > tiltDeadzone) {
				TiltGameboard(GameboardTiltDirection.Right, tiltFractionX);
			}

			if (y < -tiltDeadzone) {
				TiltGameboard(GameboardTiltDirection.Backward, tiltFractionY);
			}
			else if (y > tiltDeadzone) {
				TiltGameboard(GameboardTiltDirection.Forward, tiltFractionY);
			}
			break;
	}
});


Code snippet taken from "Postmortems - Absolutely Wrong".