Move camera when right mouse button is pressed

Hi guys im new to scripting and i need help i want to make the camera rotate around the Y-axis when i press the right mouse button and when released it stays still can some one plz help.

Thanks

You say "rotate around the Y-axis", but you don't say which Y-axis

Local y-axis rotation:

RightMouseRotate.js (Attached to camera);

var speed : float = 5.0f;

function Update() {
    if(Input.GetMouseButton(1))
        transform.eulerAngles.y += Input.GetAxis("Mouse Y") * speed;
}

World y-axis rotation:

RightMouseRotate.js (Attached to camera);

var speed : float = 5.0f;

function Update() {
    if(Input.GetMouseButton(1))
        transform.RotateAround(Vector3.zero, Vector3.up,
                               Input.GetAxis("Mouse Y") * speed);
}

You also don't specify how you want it to move. The above was based on mouse input. The following is automated movement:

Local y-axis rotation:

RightMouseRotate.js (Attached to camera);

var speed : float = 30.0f;

function Update() {
    if(Input.GetMouseButton(1))
        transform.eulerAngles.y += Time.deltaTime * speed;
}

World y-axis rotation:

RightMouseRotate.js (Attached to camera);

var speed : float = 30.0f;

function Update() {
    if(Input.GetMouseButton(1))
        transform.RotateAround(Vector3.zero, Vector3.up,
                               Time.deltaTime * speed);
}

Check this for Rotating an object: http://unity3d.com/support/documentation/ScriptReference/Transform.Rotate.html

Check this for getting Input and identifying them:

Try this:

void Update()
{
 if ( Input.GetMouseButton( 1 ) )
        {
          Camera.mainCamera.transform.RotateAround(Vector3.zero, Vector3.up, 20 * Time.deltaTime);
        }
}

Regardless of which Y axis we want to rotate around, transform.Rotate is the way to go. Either use

`transform.Rotate(speed*Time.deltaTime);`

or

`transform.Rotate(speed*Time.deltaTime, Space.World);`

for local or global rotation, respectively. Or for rotating around something, use what diabloroxx said, because that individual is an intelligent individual.