private void Awake()
{
prevFramePos = this.transform.position;
chaseState = new ChaseState(this);
alertState = new AlertState(this);
patrolState = new PatrolState(this);
attackState = new AttackState(this);
retreatState = new RetreatState(this);
attackState.Start(); // note to self call start on states that it is needed
navMeshAgent = GetComponent <NavMeshAgent>();
weaponSwingRenderer = GetComponent <LineRenderer>();
m_sphereCol = GetComponent <SphereCollider>();
m_animator = GetComponent <Animator>();
m_animator.applyRootMotion = true;
}