void cleanPool()
{
while (indicatorPool.Count > indicatorCursor)
{
ElementIndicator obj = indicatorPool [indicatorPool.Count - 1];
indicatorPool.RemoveAt(indicatorPool.Count - 1);
Destroy(obj.gameObject);
}
}
private void setIndicatorForObj(Vector3 screenPos, Color color)
{
if (screenPos.x > 0 && screenPos.x < Screen.width &&
screenPos.y > 0 && screenPos.y < Screen.height)
{
// NO indicator
}
else // OFFSCREEN
{
Vector3 screenCenter = new Vector3(Screen.width, Screen.height, 0) / 2;
// Coordinate translated to screen center
screenPos -= screenCenter;
float angle = Mathf.Atan2(screenPos.y, screenPos.x);
angle -= 90 * Mathf.Deg2Rad;
Vector3 screenBound = screenCenter * 0.9f;
if (screenPos.x == 0)
{
if (screenPos.y > 0)
{
screenPos = new Vector3(0, screenBound.y, 0);
}
else
{
screenPos = new Vector3(0, -screenBound.y, 0);
}
}
else
{
float k = screenPos.y / screenPos.x;
float screenK = (float)Screen.height / Screen.width;
if (k > 0)
{
if (screenPos.x > 0)
{
if (k > screenK) // TOP: right half
{
screenPos = new Vector3(screenBound.y / k, screenBound.y, 0);
}
else // RIGHT: top half
{
screenPos = new Vector3(screenBound.x, screenBound.x * k, 0);
}
}
else
{
if (k > screenK) // BOTTOM: left half
{
screenPos = new Vector3(-screenBound.y / k, -screenBound.y, 0);
}
else // LEFT: bottom half
{
screenPos = new Vector3(-screenBound.x, -screenBound.x * k, 0);
}
}
}
else
{
if (screenPos.x > 0)
{
if (k > -screenK) // RIGHT: bottom half
{
screenPos = new Vector3(screenBound.x, screenBound.x * k, 0);
}
else // BOTTOM: right half
{
screenPos = new Vector3(-screenBound.y / k, -screenBound.y, 0);
}
}
else
{
if (k > -screenK) // LEFT: top half
{
screenPos = new Vector3(-screenBound.x, -screenBound.x * k, 0);
}
else // TOP: left half
{
screenPos = new Vector3(screenBound.y / k, screenBound.y, 0);
}
}
}
}
// Coordinate translated to bottom left
screenPos += screenCenter;
ElementIndicator indicator = GetIndicator();
indicator.transform.position = screenPos;
indicator.transform.localRotation = Quaternion.Euler(0, 0, angle * Mathf.Rad2Deg);
indicator.GetComponent <Image> ().color = color;
}
}
