Making a game that uses an android tablet as a controller. Both the game and the controller being written in Flash / AS3.
Mostly it is working well. However, on occasion, the controller will just stop sending data. The server is receiving messages they are just blank.
I am using the accelerometer on the device to control the game, and send the 'angle' at 50ms intervals. Sometimes I can play through all three game levels 10 times with no issue. And then once in a while I'll be playing and the accel data is blank.
Not sure what is happening... I'm not getting a disconnect or other error - the server keeps replying showing that the clientMessage handler is being called - it just shows blank data.
Related
I have a simple setup for Desktop Capturing using html5 libraries.
This includes a simple webpage and a chrome-extension. I am using
Extension to get the sourceId
Using the sourceId I call navigator.mediaDevices.getUserMedia to get the MediaStream
This MediaStream is then fed into an instance of MediaRecorder for recording.
This setup works most of the times, but a few times I see that requestData() on MediaRecorder instance returns blob with empty data consistently. I am clueless as to what can cause a running setup to start misbehaving sometimes.
Some weird behaviour that I noticed in the bad state:
When I try to close/refresh the window it doesn't respond.
The MediaStreamTrack object in Step 2) above is 'live' but as soon as I go to Step 3) it becomes 'muted'.
There's no pattern to it, sometimes it even happens when I request for the MediaStreams the very first time(which rules out the possibility that there could be some dangling resources eating up the contexts)
Is there anything that I am doing wrong and am unaware of? Any help/pointers would be highly appreciated!
I got a problem with RED5 in combination with Flash. For a personal project i am trying to make a Skype-like application. I already got a application that records the users webcam and saves it with a custom filename on the RED5 server.
But i am stuck trying to connect one more user to that window for a video chat. I made a new video container in Flash but i don't know how to connect a second client to the same stream in AS3 with Red5?
I searched on the net but i only get really old threads about RED5 in combination with Flex.
Maybe this is helping understanding my problem?
Could someone help me out? Or get me in the right direction?
Video chat? You will need 2 streams, for every client. Inbound and outbound. Outbound is a stream from the client to the media server, inbound is consumed stream of another user. So it will look like:
_streamOut = new NetStream(connection, NetStream.CONNECT_TO_FMS);
_streamIn = new NetStream(connection, NetStream.CONNECT_TO_FMS);
_streamOut.addEventListener(NetStatusEvent.NET_STATUS, onStreamOutNetStatus);
_streamIn.addEventListener(NetStatusEvent.NET_STATUS, onStreamInNetStatus);
_streamOut.attachAudio(microphone);
_streamOut.attachCamera(camera);
_streamOut.publish(hostPeerID);
_streamIn.play(companionPeerID);
Also there are some helpful examples, did you check them?
My Facebook app is a flash game. I want the game swf to save its latest state to the server when the window unloads. Since I embed the swf with swfobject, I use its embed handler to add a onbeforeunload listener to window:
function embedHandler(event)
{
shell=event.ref;
window.onbeforeunload=function(event)
{
shell.message("save", null);
//delay the unloading a bit so flash has time to contact server
var now = new Date().getTime();
var later=now+50;
while (now < later)
{
now = new Date().getTime();
}
}
}
Here's the problem. This works every time when the swf is loaded directly from the app (a rails app). It never works when the swf is loaded from Amazon.
All the cross-domain issues are worked out between the swf and the app--the rails app accepts calls from Amazon swf, and the Amazon swf loads data from the rails app.
ExternalInterface also works for both outgoing and ingoing calls. But I suspect this is nonetheless a browser security issue, since the inward-going ExternalInterface call only fails when:
it is called from inside the window.onbeforeunload handler
the swf originates from Amazon.
What is the problem? How does one unobtrusively save game state when the game is from a CDN and the save is triggered by onbeforeunload in Javascript? Or is there a better way to accomplish this same thing?
Testing in Firefox.
ExternalInterface also works for both outgoing and ingoing calls. But
I suspect this is nonetheless a browser security issue, since the
inward-going ExternalInterface call only fails when:
it is called from inside the window.onbeforeunload handler
the swf originates from Amazon.
From the sounds of it you worked out all the security issues.
It is more likely a lack of understanding on your part on what is going on behind the scene when onbeforeunload is triggered.
This is a function that will not wait for your "game.swf" to finish the call back via ExternalInterface.This is why you added a stalling mechanism to delay that process. However, I will assume here that this works from the rails app because that is a local server and you are not subject to the lag monster.
Now you might be thinking well I put in a delay it should work. Well that delay is on 50 milliseconds. Try increasing to to 5000(5 seconds) and you should see it start to work on the cdn.
The saving of data should be controlled via the flash app and not triggered by an outside source.
In the game itself you should have milestones that should trigger a save event.
In closing I do want to add that is by far the worst method you could use to save information up to a server. onbeforeunload is unreliable and is subject to cross browser issues let alone putting a lag loop in the JavaScript is just a bad idea and in the end just annoy your users to the point that they won't return.
We are using a Cumulus server as our RTMFP server to implement a voice chat.
The voice streaming with NetStreams works perfectly fine almost no delay here, but we also want to transfer the activity level of the microphone of each member of the NetGroup.
So we tried transferring the data using NetGroup.post(data). That worked well, but had a delay of ~500ms even when testing with multiple clients on the same machine!
Obviously, half a second in microphone activity is just waaay to much delay to display it in any way.
Now we are trying to use direct routing with NetGroup.sendToAllNeighbors(, but it simply does nothing. I have read all the documentation on it and normally a NetGroup status event with "NetGroup.SendTo.Notify" should be triggered on the receiving clients. Instead, nothing happens.
Here is the code, which is called each frame:
var tsObject :TimestampedObject = new TimestampedObject();
tsObject.timestamp = (new Date()).getTime();
tsObject.sender = _netConnection.nearID;
tsObject.object = _mic.activityLevel;
_netGroup.sendToAllNeighbors(tsObject);
I know each frame is a bit much, but for now it is just a test case.
What are we doing wrong? As I said, voice communication itself works fine. As does Netgroup.post(data), which is just way too slow to use for this use case.
We want to create a Windows desktop version of our weather widget
There are 2 special things about the widget.
It consumes a lot of processor time
while active - it displays an
animated picture (Flash without GPU acceleration, unfortunately).
It updates the weather from our
server (frequent server requests from all widget users).
When the user does not look at the widget there is no need for animation and weather loading.
So I have an idea of putting my widget to sleep when it is not visible and hense not used.
Is it possible to detect whether the widget is used or not.
Speaking precisely I need to know whether the widget is covered by other windows?
I mostly interested in Vista/7 gadgets engine, however I also would like to know if this problem is solved in these widget engines
Yahoo widgets
Google desktop
Hope to find some desktop widget guru here.
Pasha
If you InvalidateRect and don't get a subsequent WM_PAINT message, than your window is hidden. You can call UpdateWindow after InvalidateRect to force the WM_PAINT message to happen (or not happen) right away.
So you could do something like this
request server data (and cancel request timer if any)
when data arrives InvalidateRect
when WM_PAINT message arrives, draw the data and set a timer for next request
when timer arrives, goto 1
When you stop getting WM_PAINT messages, you stop re-setting your timer, and you therefor stop requesting updates from the server. When the WM_PAINT message happens (because you are no longer covered). You start requesting data again.