1

i have a 3rd person shooter game that i am trying to make and i am having problems with the camera. i want when i move th camera it moves the camera around my character, and the character to rotate so the camera is always looking at his back. how do i do that?

2

I've created a small script for you, hope that helps:

var target : GameObject;
var followingDistance : float = 25.0;

private var rotationAngle : float = 0.0;
private var cameraY : float = 20.0;

var cameraSpeed = 3.0;
var targetRotationSpeed = 1.5;

function LateUpdate () {
    //
    //Make sure that the object is centered in camera and is always on the same distance
    var mouseY = -5.0 * Input.GetAxis ("Mouse Y");
    cameraY += mouseY;

    //v = target - camera
    var targetCameraPosition : Vector3 = -(target.transform.forward - transform.position).normalized * followingDistance + Vector3.up * cameraY;

    //Rotate camera on plane xz
    var mouseX = -5.0 * Input.GetAxis ("Mouse X");
    rotationAngle += mouseX;

    var rotationQuaternion1 : Quaternion = Quaternion.AngleAxis(rotationAngle, Vector3.up);
    targetCameraPosition = rotationQuaternion1 * targetCameraPosition;
    targetCameraPosition += target.transform.position;
    targetCameraPosition = Vector3.Slerp(transform.position,  targetCameraPosition, Time.deltaTime * cameraSpeed);
    transform.position = targetCameraPosition;

    //Make camera look at the object
    var rotationQuaternion2 : Quaternion = Quaternion.LookRotation( (target.transform.position - transform.position).normalized );
    transform.rotation = Quaternion.Slerp(transform.rotation, rotationQuaternion2, Time.deltaTime * cameraSpeed);

    //
    //Rotate target accordingly

    //Make sure that the target will rotate only on xz plane
    var xzRotationVector = (target.transform.position - transform.position).normalized;
    xzRotationVector.y = 0.0;

    var targetQuaternion : Quaternion = Quaternion.LookRotation( xzRotationVector );
    target.transform.rotation = Quaternion.Slerp(target.transform.rotation, targetQuaternion, Time.deltaTime * targetRotationSpeed);
}