How do I rotate an object with the mouse?

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1

My goal is to have an object get rotated when the mouse is moved in a direction, and to have it stay rotated until the mouse is moved in the opposite direction.

So far I have:

 `    var xDeg = 0;
    
    var yDeg = 0;
    
    var currentX = 0;
    
    var currentZ = 0;
    
    function Update () { /*if(Input.GetMouseButton(0))*/ 
    	currentX = transform.position.x;
    	
    	currentZ = transform.position.z;
    
        xDeg = Input.GetAxis("Mouse X");
     
        yDeg = Input.GetAxis("Mouse Y");
     
        transform.rotation = /*Vector3(yDeg, xDeg, 0);*/ Quaternion.Euler(currentX + yDeg, 0, currentZ + xDeg * Time.deltaTime);
`

This successfully rotates it, but it rotates back if you stop moving the mouse. How can I get it to stay rotated?

Add to your x/yDef. When you stop moving Input.GetAxis is 0, therefore it goes back to 0 degree. Just add onto what you have moved thus far. Ex. xDeg += Input.GetAxis("Mouse X");

 –

use MouseLook script on your object.

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1 Answer

1
2

With relative motions you can use Transform.Rotate(). Quaternion.Euler() is an absolute rotation. @agocdrandin solution would work if you want to track the rotation.

var xDeg = 0;
var yDeg = 0;
var currentX = 0;
var currentZ = 0;
var speed = 10.0;

function Update () { /*if(Input.GetMouseButton(0))*/ 
	currentX = transform.position.x;
	currentZ = transform.position.z;

    xDeg = -Input.GetAxis("Mouse X") * speed;
    yDeg = Input.GetAxis("Mouse Y") * speed;
 
    transform.Rotate(yDeg, xDeg, 0.0);
    }