void UpdateMessageObjects()
{
// add new icons and move all icons if user position has changed
Dictionary <string, List <long> > updates = UpdateNearbyMessages(distThreshold);
ClearMessageObjects(updates["remove"]);
// add icons for new messages within range
//this.transform.Find("helperText").GetComponent<TextMesh>().text = "" + messages.Count;
//print("add: " + updates["add"].Count + " remove: " + updates["remove"].Count);
foreach (long mid in updates["add"])
{
print("adding message ball with id " + mid);
// set location of icon to be the difference between the user and the message's 3-d location
messageBalls[mid] = Instantiate(metalBall, messages[mid].getLoc().diff(loc_origin), Quaternion.AngleAxis(180, Vector3.up));
// attache the message info to the icon
messageBalls[mid].AddComponent <Message>();
messageBalls[mid].GetComponent <Message>().message = messages[mid].getMessage();
messageBalls[mid].GetComponent <Message>().id = mid;
}
// move all icons if user location changed since last update
if (!last_loc.equals(loc_origin))
{
foreach (long mid in messageBalls.Keys)
{
messageBalls[mid].transform.position = messages[mid].getLoc().diff(loc_origin);
}
last_loc = loc_origin.copy();
}
updateLock = false;
}
private OLocation loc_origin; // current user location
// Use this for initialization
void Start()
{
// load with initialized location
// for demo purposes, use dummy locations
loc_origin = new OLocation(1, 1, 10);
last_loc = loc_origin.copy();
// initialize empty dicts of messages, icons
messages = new Dictionary <long, Message>();
messageBalls = new Dictionary <long, GameObject>();
// hide the UI overlay
uiCanvasGroup.alpha = 0f;
uiCanvasGroup.blocksRaycasts = false;
//InvokeRepeating("UpdateLocation", 0, LOC_UPDATE_DELAY);
}