Camera movement problem

Unity Engine
1

Hi all,

I am writing a camera movement script, but I cant get it to work properly. The camera is slight rotated on the X-axis and when I move the camera on the x axis the script works fine. However, when I want to move it only on the Y or Z axis, the camera moves on both the X and Y axis, creating an unwanted zoom effect. I somehow need to account for the camera rotation when translating the position, but I don’ know how. Can anyone lend me a hand?

private var speed = 150.0f;
private var turnSpeed = 35.0f;
private var turnSpeedMouse = 10.0f;

function Update () 
{

    var movement = Vector3.zero;
       
	//forward
    if(Input.GetKey("w"))
    {
        movement.y++;
    }
    //backward
    if(Input.GetKey("s"))
    {
        movement.y--;
    }
    
        
    //left
    if(Input.GetKey("a"))
    {
        movement.x--;
    }
    
   //right
    if(Input.GetKey("d"))
    { 
        movement.x++;
 	}

 	//turn right
 	if(Input.GetKey("e"))
 	{
 		transform.Rotate(Vector3.up, Time.deltaTime * turnSpeed, Space.World);
 	}
 	//turn left
 	if(Input.GetKey("q"))
 	{
 		transform.Rotate(0, -1 *Time.deltaTime * turnSpeed, 0, Space.World);
 	}
 	
 //this bit of code I found on the forums, but it does not work well.
	var theta : float = transform.rotation.y;
	var phi : float = transform.rotation.x;
	
	var xMove : float = movement.x * Mathf.Sin(phi) * Mathf.Cos(theta);
	var yMove : float = movement.y * Mathf.Sin(phi) * Mathf.Cos(theta);
	var zMove : float = movement.z * Mathf.Cos(phi);
	
 	var xxxx : Vector3 = Vector3(xMove,yMove,zMove);
        transform.Translate(xxxx * speed * Time.deltaTime, Space.Self);
}
2

If you translate with Space.World, it should just move on the axis specified.