private IEnumerator MovementNpcX(Wave wave, GameObject npc, Vector3 dstPos, int listIndex, float sign)
{
yield return(new WaitForSeconds(MovementData.npcMoveTime * listIndex * MovementData.waitBeforeMoveNextNpc));
Vector3 startPos = npc.transform.position;
GameEntities.NPCs.NPC npcC = npc.GetComponent <GameEntities.NPCs.NPC>();
npcC.StartMove();
float startMove = 0.5f; // percent value
float endMove = 0.4f; // percent value
float moveDuration = (1f - startMove) * MovementData.npcMoveTime + endMove * MovementData.npcMoveTime;
yield return(npcC.StartCoroutine(OnWayMovementNpcX(npc, startPos, dstPos, sign, startMove, 1, 0, moveDuration, false)));
yield return(npcC.StartCoroutine(OnWayMovementNpcX(npc, startPos, dstPos, sign, -1, endMove,
(1f - startMove) * MovementData.npcMoveTime, moveDuration, true)));
npcC.EndMove();
}