// MQTT receive callback
// this code runs when a message is received
// It can't update objects, that has to be done in the main 'Update()' thread
public void MqttReceiveCallback(object sender, MqttMsgPublishEventArgs e)
{
//System.Diagnostics.Debug.WriteLine("received something");
received_data = Encoding.UTF8.GetString(e.Message);
//System.Diagnostics.Debug.WriteLine("MQTT: " + received_data);
// enqueue a position update to be dequeued during Update() time
// (once per frame)
string[] splits = received_data.Split(',');
if (splits.Length < 8)
{
System.Diagnostics.Debug.WriteLine("Bad MQTT message: " + received_data);
return;
}
string worldname = splits[0];
// strip extra non-component-name bits from world name
// e.g. "drone1" -> "drone", "avatar-2" -> "avatar", "fire_3" -> "fire"
String basename = worldname.Trim(trimChars);
//System.Diagnostics.Debug.WriteLine("baseName is: " + splits[0]);
float x = float.Parse(splits[1]);
float y = float.Parse(splits[2]);
float z = float.Parse(splits[3]);
float xrot = float.Parse(splits[4]);
float yrot = float.Parse(splits[5]);
float zrot = float.Parse(splits[6]);
float wrot = float.Parse(splits[7]);
string onoff = splits[8];
// System.Diagnostics.Debug.WriteLine("x,y,z are: " + x + " " + y + " " + z);
// System.Diagnostics.Debug.WriteLine("myDict is: " + myDict.ToString());
// System.Diagnostics.Debug.WriteLine("Dict keys are: " + g.name + "," + h.name + "," + i.name);
// System.Diagnostics.Debug.WriteLine("gObj is: " + gObj.name);
Boolean enabled = false;
if (onoff == "on")
{
enabled = true;
}
//GameObject go = myDict[name];
updateStruct us = new updateStruct(worldname, basename, x, y, z, xrot, yrot, zrot, wrot, true, enabled);
workQueue.Enqueue(us);
// dump stale updates
while (workQueue.Count > 5)
{
workQueue.Dequeue();
}
}
private void Update()
{
// pull only one location update from the queue
// we might want to empty out ALL such updates, but hesitant
// to put a loop inside Update()
// it would allow to skip/drop multiple updates to same GameObject
if (workQueue.Count > 0)
{
//System.Diagnostics.Debug.WriteLine("Qcount: " + workQueue.Count);
updateStruct us = workQueue.Dequeue();
GameObject go;
// where Name is something like "drone1" "avatar-2" "fire_3" etc.
if (!worldObjects.ContainsKey(us.worldName))
{
// Instantiate new GameObject
// caveat: Start() may not get called for newly instantiated GameObject scripts!
go = Instantiate(myDict[us.baseName], transform);
go.name = us.worldName;
worldObjects.Add(us.worldName, go);
ObjectController obj = (ObjectController)go.GetComponent <ObjectController>();
//us.baseName = go;
us.Enabled = true;
obj.hasUpdate = true;
obj.us = us;
go.transform.position = new Vector3(us.X, us.Y, us.Z);
go.transform.rotation = new Quaternion(us.Xrot, us.Yrot, us.Zrot, us.Wrot);
go.SetActive(true);
}
else
{
// Update existing GameObject
go = worldObjects[us.worldName];
ObjectController obj = (ObjectController)go.GetComponent <ObjectController>();
if (us.Enabled == true)
{
//us.baseName = go;
us.Enabled = true;
obj.hasUpdate = true;
obj.us = us;
go.SetActive(true);
}
else
{
Destroy(go);
worldObjects.Remove(us.worldName);
}
}
if (us.Enabled)
{
ObjectController obj = (ObjectController)go.GetComponent <ObjectController>();
// if previously inactive, warp directly to new coordinate
obj.targetX = us.X;
obj.targetY = us.Y;
obj.targetZ = us.Z;
obj.targetXrot = us.Xrot;
obj.targetYrot = us.Yrot;
obj.targetZrot = us.Zrot;
obj.targetWrot = us.Wrot;
obj.hasUpdate = true;
}
else
{
go.SetActive(false);
}
}
}
