void Start()
{
mask = LayerMask.GetMask("Plane");
bloodMgr = GameObject.Find("BloodMgr").GetComponent <BloodMgr>();
scoreUIMgr = GameObject.Find("ScoreUI").GetComponent <ScoreUIMgr> ();
isFinishShoot = false; // set this to true everytime after shooting boomerang
anim = GetComponentInChildren <PlayerAnimationController>();
boomerangFolder = GameObject.Find("boomerangFolder").transform;
playerMove = GetComponent <PlayerMove> ();
}