private GameObject FindOrInitializeIndicator(GameObject navigatable)
{
int targetId = navigatable.GetInstanceID();
player = player ?? GameObject.FindGameObjectWithTag("Player");
GameObject indicator;
if (indicators.ContainsKey(targetId))
{
indicator = (GameObject)indicators[targetId];
}
else
{
indicator = Instantiate(indicatorPrefab, navigatable.transform.position, Quaternion.identity, radar.transform);
PlanetIndicator pi = indicator.GetComponent <PlanetIndicator>();
pi.planet = navigatable;
pi.player = player;
if (navigatable.name == "HomePlanet")
{
pi.SetHighlight();
}
indicators.Add(targetId, indicator);
}
return(indicator);
}
void PlaceIndicator(GameObject target)
{
Vector3 screenPos = Camera.main.WorldToScreenPoint(target.transform.position);
GameObject indicator = FindOrInitializeIndicator(target);
PlanetIndicator pi = indicator.GetComponent <PlanetIndicator>();
// IF within screenbounds, set marker on planet
if (screenPos.z > 0 &&
screenPos.x >= 0 && screenPos.x <= Screen.width &&
screenPos.y <= Screen.height && screenPos.y >= 0)
{
if (!pi.hidden)
{
pi.Hide();
}
return;
}
else
{
if (pi.hidden)
{
pi.Show();
}
}
if (screenPos.z < 0)
{
screenPos *= -1;
}
Vector3 screenCenter = new Vector3(Screen.width, Screen.height, 0) / 2;
// Change 0,0 to screen center
screenPos -= screenCenter;
// find angle from center of screen to object
float angle = Mathf.Atan2(screenPos.y, screenPos.x);
angle -= 90 * Mathf.Deg2Rad;
float cos = Mathf.Cos(angle); // Run
float sin = -Mathf.Sin(angle); // Rise
// This moves position along rise over run. Why 150 though? Is that a rad thing?
screenPos = screenCenter + new Vector3(sin * 150, cos * 150, 0);
float m = cos / sin;
Vector3 screenBounds = screenCenter * 1f; // add padding around edge of screen ?
// Snapping point to edge of screen
if (cos > 0) // if fore or aft
{
screenPos = new Vector3(screenBounds.y / m, screenBounds.y, 0);
}
else
{
screenPos = new Vector3(-screenBounds.y / m, -screenBounds.y, 0);
}
// if right or left
if (screenPos.x > screenBounds.x)
{
screenPos = new Vector3(screenBounds.x, screenBounds.x * m, 0);
}
else if (screenPos.x < -screenBounds.x)
{
screenPos = new Vector3(-screenBounds.x, -screenBounds.x * m, 0);
}
// Remove coordinate translation
screenPos += screenCenter;
indicator.transform.position = screenPos;
}