C# Unity3D Scale using Accelerometer with Clamp

debugcn Published at Dev

user2360140

I'm trying to translate the roll(y) of a phone into the scale of an object but with size limits.

I have had success scaling to infinity +- with the following code:

void Update () {
   float accelY = Input.acceleration.y;
   transform.localScale += new Vector3(0, accelY, 0);
}

The problem I am having is with the max and min limits of the scale.

I attempted to use Clamp in the following way but have ended up just limiting the direction of scale where -y (rolling toward myself) equals 0 therefore no shrinking happens and +y (rolling away from self) scales up endlessly assumed at a max rate of 0.045f.

transform.localScale += new Vector3(0, Mathf.Clamp(accelY, 0f, 0.045f), 0);

In an ideal world I'd like to have a min scale of y = 1 and a max scale y = 100 and as you roll the phone back and forth it would tween between the two sizes.

I can find code snippets for Translate and rotate but nothing for scaling.. Please help.

kamyker

void Update () {
   float accelY = Input.acceleration.y;
   transform.localScale = new Vector3(0, Mathf.Clamp(transform.localScale.y + accelY, 1f, 
   100f), 0)
}

You should add Time.deltaTime because Update is frames/sec dependant:

[SerializeField]
float speed = 10f;
[SerializeField]
float minSize = 1f;
[SerializeField]
float maxSize = 100f;

void Update () {
   float accelY = Input.acceleration.y * Time.deltaTime * speed;
   transform.localScale = new Vector3(0, Mathf.Clamp(transform.localScale.y + accelY, minSize , 
   maxSize ), 0)
}

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