Detecting whether users are standing up or sitting down

"peterept" wrote:
Yes, why not get the user to Recenter when they are seated at the start. Then you know the Y position in tracking space VR.InputTracking.GetLocalPosition. Now the Y increases by .5 they are standing.

"wheatgrinder" wrote:
obviously Unity knows where the HMD is in y space.. when I stand up my view rises..

I think its just a matter of finding which transform to watch...

You probably need the Oculus Utilities for Unity to get at the data you want, I dont know that the built in Unity VR support provides that.. though it probably does..

I have a scale player, seems the best approach to scaling the player is to place the OVRPlayerContoller as a child of an empty game object and then scale the empty game object. This works perfect for me (with an exception of a bug in the game pad controller script that is easily fixed)


FYI: I think this is a really neat idea I may try it for fun!

"Ohyeahitsjosh" wrote:

That sounds good but I'm not sure how to code that (I'm a total newbie). Additionally, I would want the script to handle it automatically without the user having to press a button. Is that possible?

using UnityEngine;
using UnityEngine.VR;
using System.Collections;

public class SeatedOrStanding : MonoBehaviour 
{
	[Tooltip("Normalized Seated, Standing or Transitioning. 0..1 = Seated to Standing")]
	public float Standing; 

	private float seatedY;

	void Start()
	{
		RecenterSeated();
	}

	void Update()
	{
		float y = UnityEngine.VR.InputTracking.GetLocalPosition(0).y;
//		y = transform.localPosition.y;
		float yMaxSeated = seatedY + 0.2f;
		float yMinStanding = seatedY + 0.4f;
		float rawStanding = (y - yMaxSeated) / (yMinStanding - yMaxSeated);
		Standing = Mathf.Clamp(rawStanding, 0f, 1f);
	}

	public void RecenterSeated() 
	{
		StartCoroutine(RecenterSeatedCoroutine());
		
	}
	
	IEnumerator RecenterSeatedCoroutine() 
	{
		InputTracking.Recenter();	
		yield return new WaitForEndOfFrame();
		seatedY = InputTracking.GetLocalPosition(0).y;
		//		seatedY = transform.localPosition.y;
	}

}

"peterept" wrote:



You can do it automatically (grab the position on startup), but you will find it is much better to recenter any way because the user is not always facing forwards. Most games do it automagically, by having a button like "Face Forward and Press Start".

Here 's a quick attempt to do it. This is completely untested as I don't have access to my Dk2...

Attach this to any gameobject. Then you can check the Standing float to get the users current situation. 0 = seated. 1 = standing. any where in between is the percentage of transition.

It will auto calibrate on on Start(), but you should call RecenterSeated() when the user is actually ready to start.

using UnityEngine;
using UnityEngine.VR;
using System.Collections;

public class SeatedOrStanding : MonoBehaviour 
{
	[Tooltip("Normalized Seated, Standing or Transitioning. 0..1 = Seated to Standing")]
	public float Standing; 

	private float seatedY;

	void Start()
	{
		RecenterSeated();
	}

	void Update()
	{
		float y = UnityEngine.VR.InputTracking.GetLocalPosition(0).y;
//		y = transform.localPosition.y;
		float yMaxSeated = seatedY + 0.2f;
		float yMinStanding = seatedY + 0.4f;
		float rawStanding = (y - yMaxSeated) / (yMinStanding - yMaxSeated);
		Standing = Mathf.Clamp(rawStanding, 0f, 1f);
	}

	public void RecenterSeated() 
	{
		StartCoroutine(RecenterSeatedCoroutine());
		
	}
	
	IEnumerator RecenterSeatedCoroutine() 
	{
		InputTracking.Recenter();	
		yield return new WaitForEndOfFrame();
		seatedY = InputTracking.GetLocalPosition(0).y;
		//		seatedY = transform.localPosition.y;
	}

}

using UnityEngine;
using System.Collections;

public class ChangeSize : MonoBehaviour 
{
	
	public float maxScale = 10.0f;
	public float minScale = 2.0f;
	public float shrinkSpeed = 1.0f;
	public GameObject player;
	public GameObject eye;
	
	// Use this for initialization
	void Start ()
	{
		
	}
	// Update is called once per frame
	void Update () 
	{
		float angle = Vector3.Dot(Vector3.up, eye.transform.forward);
		var playerScale = player.transform.localScale;
		
		
		if(angle > .9){
			player.transform.localScale += new Vector3(shrinkSpeed, shrinkSpeed, shrinkSpeed);
			Debug.Log ("looking up");
		}
		
		else if(angle < -.9){
			player.transform.localScale -= new Vector3(shrinkSpeed, shrinkSpeed, shrinkSpeed);
			Debug.Log ("looking down");
		}
	}
}

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(SeatedOrStanding))]
public class SeatedOrStandingPlayerScaler : MonoBehaviour 
{
	public float maxScale = 10.0f;
	public float minScale = 2.0f;
	public Transform Player;
	private SeatedOrStanding seatedOrStanding;

	void Awake()
	{
		seatedOrStanding = GetComponent<SeatedOrStanding>();
	}

	void Update () 
	{
		Player.localScale = Vector3.Lerp (Player.localScale, Vector3.one * (minScale + ((maxScale - minScale) * seatedOrStanding.Standing)), 0.1f);
	}
}

"peterept" wrote:
I see what your doing there.

Drag this script onto the same game object that has the SeatedOrStanding script. Then drag your player gameobject on to Player.

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(SeatedOrStanding))]
public class SeatedOrStandingPlayerScaler : MonoBehaviour 
{
	public float maxScale = 10.0f;
	public float minScale = 2.0f;
	public Transform Player;
	private SeatedOrStanding seatedOrStanding;

	void Awake()
	{
		seatedOrStanding = GetComponent<SeatedOrStanding>();
	}

	void Update () 
	{
		Player.localScale = Vector3.Lerp (Player.localScale, Vector3.one * (minScale + ((maxScale - minScale) * seatedOrStanding.Standing)), 0.1f);
	}
}

That should do what you want I think.