VR Walk Controller, Walk in place to move forward.

WalkVRController.cs

using UnityEngine;
using System.Collections;

public class WalkVRController : MonoBehaviour {

	[SerializeField]
	private float walkSpeed = 2f;
	private float walkNormalize = 0.1f;
	[SerializeField]
	private float sensorThreshold = 1f;
	[SerializeField]
	private Transform targetTransform;

	private float walkCount = 0;

	private void Awake() {
		Input.gyro.enabled = true;
	}

	private void Update () {
		if (Shake ()) {
			walkCount += 1;
			LogController.i.Log ("Walked Steps:" + walkCount);
			targetTransform.Translate (0, 0, walkNormalize * walkSpeed);
		}
	}

	private bool Shake()
	{
		float x = Input.gyro.userAcceleration.x;

		float length = Mathf.Sqrt (x * x);
		if (length >= sensorThreshold)
			return true;
		else
			return false;
	}
}