/*
* Check if this object meets all conditions. If yes, show arrow and update its position.
* Else, hide arrow.
*
***Technically, this checks the distance between this object and the center of the screen,
***not the player's actual position.
*/
void Update()
{
//Gets the center of the screen in world position
Vector3 playerPos = Camera.main.ViewportToWorldPoint(new Vector3(0.5f, 0.5f, 0));
Vector3 objectPos = transform.position;
//Gets how far the object is away from center of the screen.
Vector3 heading = objectPos - playerPos;
float distance = heading.magnitude;
//Checks if this object:
//1) Is close enough to be detected
//2) Is actually outside the screen/not rendered by the camera
//3) Is moving faster than the speed threshhold
if (distance <= DetectionRange && !_renderer.isVisible && _rb2d.velocity.magnitude >= SpeedThreshhold)
{
if (transform.tag == "Enemy")
{
if (_playerWithinRangeScript != null)
{
_playerWithinRangeScript.activateCommentary();
_playerWithinRangeScript = null;
}
}
_arrow.SetActive(true);
UpdateArrow();
}
else
{
_arrow.SetActive(false);
}
}
/*
* Cache all needed components.
*/
void Start()
{
_renderer = GetComponent <Renderer>();
_rb2d = GetComponent <Rigidbody2D>();
_arrow = (GameObject)Instantiate(arrowPrefab);
_arrow.SetActive(false);
_playerWithinRangeScript = GameObject.FindGameObjectWithTag("CommentaryObject").GetComponentInChildren <PlayerWithinRangeOfEnemy> ();
}
