StickMove.cs

using System;
using UnityEngine;
using Valve.VR;

public class StickMove : MonoBehaviour
{
    [Tooltip("input action for stick movement, e.g. left joystick")]
    public SteamVR_Action_Vector2 moveAction;

    [Tooltip("input action for turning, e.g. right joystick. only the X axis is used.")]
    public SteamVR_Action_Vector2 turnAction;

    [Tooltip("headset position, for head-relative stick movement and turning.")]
    public Transform headTransform;

    [Tooltip("Transform to affect, e.g. the Player's playspace.")]
    public Transform targetTransform;

    [Tooltip("joystick range to ignore, since usually they stick to small positive values.")]
    [Range(0.0f, 1)]
    public float deadZone = 0.1f;

    [Tooltip("move speed multiplier")]
    [Range(0.0f, 50f)]
    public float moveSpeed = 10.0f;

    [Tooltip("turn speed multiplier, in degrees")]
    [Range(0.0f, 180f)]
    public float turnSpeed = 50.0f;

    void Update()
    {
        if (moveAction.axis.magnitude > deadZone)
        {
            targetTransform.Translate(
                // rotated around the Y axis (yaw) according to head,
                // ignoring X/Z roll/pitch, so no Y axis movement
                // there is likely a more efficient way to do this transform
                Quaternion.Euler(0.0f, headTransform.rotation.eulerAngles.y,0.0f) *
                // by the joystick axes along forward/right
                ((Vector3.forward * moveAction.axis.y + Vector3.right * moveAction.axis.x) *
                // by move speed
                moveSpeed * Time.deltaTime),
                // in world space, since headTransform.rotation is in world space
                Space.World);
        }

        if (Math.Abs(turnAction.axis.x) > deadZone)
        {
            // rotate the playspace relative to your head
            targetTransform.RotateAround(
                headTransform.transform.position,
                Vector3.up, // around Y axis
                turnAction.axis.x * turnSpeed * Time.deltaTime);
        }
    }
}