public void RotateLeft()
{
    cameraY = Mathf.Clamp(cameraY, minAngle, maxAngle);
    if(cameraY >= minAngle)
    {
        Camera.main.transform.Rotate(0,-cameraY,0);
    }
}
public void RotateRight()
{
    cameraY = Mathf.Clamp(cameraY, minAngle, maxAngle);
    if(cameraY <= maxAngle)
    {
        Camera.main.transform.Rotate(0,cameraY,0);
    }
}