// Start is called before the first frame update
protected virtual void Start()
{
player = GameObject.Find("Player").transform;
MaxLifeAmount = lifeAmount;
startPosition = transform.position;
navMeshAgent = GetComponent <NavMeshAgent>();
enemyIndicator = GetComponent <EnemyIndicator>();
uiLifeBarFront = transform.Find("Canvas/lifebar/front").gameObject.GetComponent <Image>();
}
private void PositionIndicator(EnemyIndicator indicator)
{
Vector2 viewPos = Camera.main.WorldToViewportPoint(indicator.enemy.position);
Vector2 enemyPos = Vector2.zero;
enemyPos.x = (viewPos.x * mainCanvas.sizeDelta.x) - (mainCanvas.sizeDelta.x * 0.5f);
enemyPos.y = (viewPos.y * mainCanvas.sizeDelta.y) - (mainCanvas.sizeDelta.y * 0.5f);
//Vector2 indicatorPos = Vector2.zero;
//if (Mathf.Abs(enemyPos.x) > Mathf.Abs(enemyPos.y))
//{
// //calculate y where x = 1
// indicatorPos.x = enemyPos.x / Mathf.Abs(enemyPos.x);
// indicatorPos.y = enemyPos.y / Mathf.Abs(enemyPos.x);
//}
//else
//{
// indicatorPos.y = enemyPos.y / Mathf.Abs(enemyPos.y);
// indicatorPos.x = enemyPos.x / Mathf.Abs(enemyPos.y);
//}
////assume width > height
//indicatorPos.x *= indicatorBoundsX.y;
//indicatorPos.y *= indicatorBoundsX.y;
//if (Mathf.Abs(indicatorPos.y) > indicatorBoundsY.y)
//{
// //out of bounds
// float boundsExceededRatio = indicatorBoundsY.y / Mathf.Abs(indicatorPos.y);
// indicatorPos.y *= boundsExceededRatio;
// indicatorPos.x *= boundsExceededRatio;
//}
Vector2 enemyNormalized = enemyPos.normalized;
Vector2 indicatorPos = enemyNormalized;
//gets circular notifier
if (indicatorPos.x < 0.0f)
{
indicatorPos.x *= indicatorBoundsX.x * -1;
}
else
{
indicatorPos.x *= indicatorBoundsX.y;
}
if (indicatorPos.y < 0.0f)
{
indicatorPos.y *= indicatorBoundsY.x * -1;
}
else
{
indicatorPos.y *= indicatorBoundsY.y;
}
//find out which magnitude is bigger
//if (Mathf.Abs(indicatorPos.x) > Mathf.Abs(indicatorPos.y))
//{
// //x is bigger, so arrow is on left/right side
// indicatorPos *= indicatorBoundsX.y;
//}
//else
//{
// //y is bigger, so arrow is on top/bottom side
// indicatorPos *= indicatorBoundsY.y;
//}
//y = ((y2-y1)/(x2-x1))x + c
//assuming enemyPos is positive on both axis
//x1,y1 = 0,0
//x2,y2 = enemyPos.x,enemyPos.y
//x = indicatorBoundsX.y (max x boundary)
//c = y intercept (0)
//indicatorPos.y = ((enemyPos.y - 0)/(enemyPos.x - 0)) * indicatorBoundsX.y + 0
//Vector2 indicatorPos = enemyPos;
//indicatorPos.x = Mathf.Clamp(enemyPos.x, indicatorBoundsX.x, indicatorBoundsX.y);
//indicatorPos.y = Mathf.Clamp(enemyPos.y, indicatorBoundsY.x, indicatorBoundsY.y);
indicator.indicatorRect.anchoredPosition = indicatorPos;
Vector3 thisPos = Vector2.zero;
Vector2 offset = new Vector2(enemyPos.x - thisPos.x, enemyPos.y - thisPos.y);
var angle = Mathf.Atan2(offset.y, offset.x) * Mathf.Rad2Deg;
indicator.indicatorRect.rotation = Quaternion.Euler(0, 0, angle);
//Vector2 viewPos = Camera.main.WorldToViewportPoint(indicator.enemy.position);
//Vector2 enemyPos = Vector2.zero;
//enemyPos.x = (viewPos.x * mainCanvas.sizeDelta.x) - (mainCanvas.sizeDelta.x * 0.5f);
//enemyPos.y = (viewPos.y * mainCanvas.sizeDelta.y) - (mainCanvas.sizeDelta.y * 0.5f);
//Vector2 indicatorPos = enemyPos;
//indicatorPos.x = Mathf.Clamp(enemyPos.x, indicatorBoundsX.x, indicatorBoundsX.y);
//indicatorPos.y = Mathf.Clamp(enemyPos.y, indicatorBoundsY.x, indicatorBoundsY.y);
//indicator.indicatorRect.anchoredPosition = indicatorPos;
//Vector3 thisPos = Vector2.zero;
//Vector2 offset = new Vector2(enemyPos.x - thisPos.x, enemyPos.y - thisPos.y);
//var angle = Mathf.Atan2(offset.y, offset.x) * Mathf.Rad2Deg;
//indicator.indicatorRect.rotation = Quaternion.Euler(0, 0, angle);
}
private void RemoveIndicator(EnemyIndicator indicator)
{
// enemy has been destroyed, destroy indicator
enemyIndicators.Remove(indicator);
indicator.gameObject.SetActive(false);
Destroy(indicator.gameObject);
}
private bool UpdateIndicator(EnemyIndicator indicator)
{
if (indicator.enemy == null)
{
return true; //true = remove this indicator
}
//not destroyed
//indicator is only visible when enemy is not
bool indicatorVisible = !TransformIsVisible(indicator.enemy);
if (indicatorVisible)
{
PositionIndicator(indicator);
}
if (indicatorVisible != indicator.isVisible)
{
indicator.isVisible = indicatorVisible;
indicator.gameObject.SetActive(indicatorVisible);
}
return false;
}
// called in editor when reset button is pressed, or when script is first attached
private void Reset()
{
// set the default inspector values for convenience
enemyIndicators = FindObjectOfType <EnemyIndicator>();
}
