/// MouseLook rotates the transform based on the mouse delta.
/// Minimum and Maximum values can be used to constrain the possible rotation

/// To make an FPS style character:
/// - Create a capsule.
/// - Add the MouseLook script to the capsule.
/// -> Set the mouse look to use LookX. (You want to only turn character but not tilt it)
/// - Add FPSInputController script to the capsule
/// -> A CharacterMotor and a CharacterController component will be automatically added.

/// - Create a camera. Make the camera a child of the capsule. Reset it's transform.
/// - Add a MouseLook script to the camera.
/// -> Set the mouse look to use LookY. (You want the camera to tilt up and down like a head. The character already turns.)
[AddComponentMenu("Camera-Control/Mouse Look")]
public class MouseLook : MonoBehaviour {

public enum RotationAxes { MouseZAndY = 0, MouseY = 1, MouseZ = 2 }
public RotationAxes axes = RotationAxes.MouseZAndY;
public float sensitivityY = 15F;
public float sensitivityZ = 15F;

public float minimumY = -360F;
public float maximumY = 360F;

public float minimumZ = -60F;
public float maximumZ = 60F;

float rotationZ = 0F;

void Update ()
{
if (axes == RotationAxes.MouseZAndY)
{
float rotationY = transform.localEulerAngles.y + -Input.GetAxis("Mouse Y") * sensitivityY ;

rotationZ += Input.GetAxis("Mouse Y") * sensitivityZ;
rotationZ = Mathf.Clamp (rotationZ, minimumZ, maximumZ);

transform.localEulerAngles = new Vector3(-rotationZ, rotationY, 0);
}
else if (axes == RotationAxes.MouseY)
{
transform.Rotate(0,Input.GetAxis("Mouse X") * sensitivityY,0);
}
else
{
rotationZ += Input.GetAxis("Mouse X") * sensitivityZ;
rotationZ = Mathf.Clamp (rotationZ, minimumZ, maximumZ);

transform.localEulerAngles = new Vector3(-rotationZ, transform.localEulerAngles.z, 0);
}
}

void Start ()
{
// Make the rigid body not change rotation
if (rigidbody)
rigidbody.freezeRotation = true;
}
}