accelerometer script but used while device in landscape mode?

Questions & Answers
1

I have an accelerometer script that works great in portrait mode.

Tilt forward = move forwards Tilt back = move back Tilt left = move left Tilt right = move right

all good!

Now I changed things up a bit by forcing player into Landscape mode... I now have the device horizontal with button on right side. This is the mode I want to develop the game for...but the accelerometer script is now confusing me Im not sure how to modify it.

Now I get this from this slightly modified script:

Tilt forwards = move forwards ( ok! ) Tilt back = move backwards ( great! ) Tilt right = goes up?? Tilt left = goes down??

Im not really looking for Y acceleration...I think Im looking for Z rotation?? how do I find this?

How do I get this to:

Tilt right = goes right. Tilt left = goes left.

using UnityEngine; 
using System.Collections; 

public class NewBehaviourScript : MonoBehaviour { 

   // Use this for initialization 
   void Start () { 

   } 

   // Update is called once per frame 
   void Update () { 

      if ( Application.platform == RuntimePlatform.IPhonePlayer ) 
      { 

         float z = iPhoneInput.acceleration.z * -1; 
         transform.Translate(0,0,z*8); 

         float y = iPhoneInput.acceleration.y;  // should i get some rotation?
         transform.Translate(0,y*8,0);

      } 
      else 
      { 

         float z = Input.GetAxis("Vertical"); 
         float x = Input.GetAxis("Horizontal"); 

         transform.Translate(0,0,z); 
         transform.Translate(x,0,0); 

      } 

   } 
}
2

Well for motion, all you need to do is flip your x and y readings around for the accelerometer when in landscape:

Vector3 accelerator = iPhoneInput.acceleration;

float currentXf = accelerator.x;  // store current X
accelerator.x = -accelerator.y;   // X is now -Y
accelerator.y = currentXf;        // Y is original X

Measuring tilt is a little different however; I use this trig-fu in a Steering Wheel fashion; basically it's like a moving pointer on a protractor and based on the current reading +/- degrees relative to 270. You can do what you want from there (i.e., apply stronger steering force based on whatever Lerp formula you like via that offset). Note, you'll want the code above of course to set the x/y relationship correctly when in landscape.

float rotationAngle = Mathf.Rad2Deg * Mathf.Atan2(accelerator.y, accelerator.x);

if (rotationAngle < 0f)
    rotationAngle = rotationAngle + 360.0f;