Limit transfrom.rotatearound to 45 degrees using mouse speed?

Questions & Answers
1

I found a script online for rotating an object using mouse speed and its been working great but in one part of my project I need to limit the rotation to about 45 degrees. I’ve searched around and havent been able to get any of the limit rotation scripts I’ve seen to work with what I am currently using. I am pretty new to Unity scripting so any help is greatly appreciated.

Current script:

using UnityEngine;
using System.Collections;

public class MouseOribit: MonoBehaviour {

public float speed = 10.0f;	

private Bounds bound;

void Start () {
	var collider = gameObject.GetComponent<BoxCollider>();
	if(collider ==null)
	{
		collider = gameObject.AddComponent<BoxCollider>();
		Debug.Log("No collider is detected. A new one will be created.");			
	}
		
	bound = collider.bounds;		
	Debug.Log ("Collider Size: " + bound.size.ToString());
	Debug.Log ("Collider Center: " + bound.center.ToString());
}

void Update () {

	if(Input.GetKey(KeyCode.LeftAlt))
	{
		
		float speed = 0.0f;
	}
		
	else if(Input.GetKey(KeyCode.RightAlt))
	{

		float speed = 0.0f;
	}

	else if(Input.GetMouseButton(1))
	{

		if(bound.size.magnitude > 0)
		{	
			var dtx = Input.GetAxis("Mouse X")*speed;
			/*
			var dty = Input.GetAxis("Mouse Y")*speed;
			*/
			var pivot = bound.center; 					
			//Debug.Log(pivot);
			//Debug.Log(dtx.ToString() +", " + dty.ToString());
			transform.RotateAround(pivot, Vector3.down, dtx);
			/* transform.RotateAround(pivot, Vector3.left, dty); */ 
		}
	}
}

}

2

You can use Mathf.Clamp(dtx, 0, 45)