Limit player transform on x axis

Questions & Answers
1

I m making a game on android device , i use accelerometer and i want my player to transform only on x axis.

this is the code i write:

void Update()
{
float amtToMove = -Input.acceleration.y * PlayerSpeed * Time.deltaTime;
Vector3 pos = transform.position;
pos.x = Mathf.Clamp(pos.x + amtToMove, -0.19f, 2.3f);
transform.position = pos;
}
I use Mathf.Clamp and this work very well but i don’t want to put a fixed value.
i want my player to be limited on screen width.
Can any one help me
PS: Sorry for my bad english and
thanks in advance.

2

Sure you just need to convert the screen coordinates into world coordinates at the position of the player.

So you have Screen.width which will tell you your horizontal width, then:

 minX = Camera.main.ScreenToWorldPoint(new Vector3(0,0,player.transform.position.z - Camera.main.transform.position.z)).x;
maxX = Camera.main.ScreenToWorldPoint(new Vector3(Screen.width, 0, player.transform.position.z - Camera.main.transform.position.z)).x;

So using ScreenToWorldPoint will convert the screen coordinate, based on the camera, to the world at z units from the camera.