void Start()
 {
     anim = GetComponent<Animator> ();
     walkMechanics = GetComponent <WalkMechanics> ();
     crouchMechanics = GetComponent<CrouchMechanics> ();
 }
 void Start()
 {
     walkMechanics = GetComponent<WalkMechanics> ();
     throwMechanics = GetComponent<ThrowMechanics>();
     crouchMechanics = GetComponent<CrouchMechanics>();
 }