void Start()
{
tr = GetComponent <RectTransform>();
//싱글톤할당
instance = this;
}
/// <summary>
/// Handles the target switch - targets are sorted by their x-position.
/// </summary>
/// <param name="moveBy">Move by (-1 means left, 1 means right).</param>
void handleTargetSwitch(TargetDirection moveBy)
{
var enemies = GameObject.FindGameObjectsWithTag("Hostile");
//Order by x-coord so first index is lowest x-coord
List <GameObject> list = new List <GameObject>(enemies);
list.Sort(((GameObject x, GameObject y) => Mathf.CeilToInt(x.transform.position.x - y.transform.position.x)));
if (target == null)
{
if (list.Count > 0)
{
target = list [0];
placeArrow();
}
}
else
{
//Remove old arrow
Destroy(arrow);
int currIndex = list.FindIndex((GameObject obj) => obj == target);
int nextIndex = Mathf.Abs((currIndex + (int)moveBy) % list.Count);
target = list [nextIndex];
placeArrow();
}
}
