How can I increase the character's velocity the farther the device is tilted?

Questions & Answers
1

I am making a platform game for mobile in Unity and I would like to increase the speed of my character the farther he travels along the x-axis, up until a max speed, using the accelerometer.

Right now I have this:

void FixedUpdate ()
	{
		Vector2 direction = Vector2.zero;
		direction.x = Input.acceleration.x * horizontalSpeed;

		if ( direction.sqrMagnitude > 1 )
		{
			direction.Normalize();
		}
		
		direction *= Time.deltaTime;
		transform.Translate(direction);
	}

Currently, the character is always moving at the same speed. How can I increase the character’s velocity the farther the device is tilted?

I’m thinking I could measure the position of the accelerometer and as the position changes, I could adjust the speed variable. I just can’t figure out how to measure it.

2

If you get the orientation of the device using the gyroscope you can determine how far it’s rotated in a certain axis and apply velocity based on that rotation.