I have been working on the Asteroids Game example code that they give in the tutorials section of the wiki and I ran into a strange error.
The code works just fine in my development environment, Eclipse. The game runs without error and exits normally.
I go through the export process in the file menu and create an executable jar that when run with this batch file code
java -Djava.library.path=D:\Tools\lwjgl-2.8.4\lwjgl-2.8.4\native\windows -jar SpaceInvaders.jar
Starts the display and the fails when it trys to load a wav file. Giving this error.
Exception in thread "main" java.lang.NullPointerException
I traced to where in the code this is happening and it is at the location where the wavs are being loaded. Apprently outside of the environment it can't locate the files even though they are right next to the code? All my wav files and gif files are just in the same directory as the java class files right now so calling them from the code looks likes this:
http://i.imgur.com/2gnN1.png
Searching for stuff on google it tells me to zip them into a seperate file and then import to the class folder and refrence from there. I was wondering if there was a way to keep the files inside my main jar file instead of having to create a seperate entity.
Thanks for the replys! Let me know if more information is needed.
You may want to consider using a higher-level API, such as the 3d soundsystem from paulscode. SoundSystem can read from inside the jar(like you are asking), and automatically switch to java sound if LWJGL sound isn't supported on the current hardware.
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I'm trying to follow directions given by MonsterDebugger I've linked the SWC, added the code. Then built the project.
The last thing they say: "Publish your project and watch the magic happen."
What I got is a SWF that is built to an http directory where my PHP file picks it up and displays it in browser.
What I'm expecting/want is to interact with my SWF application through browser and debug it with MonsterDebugger.
I'm obviously missing something since there it looks like there is no way for Monster tool to attach itself to the SWF? I'm not sure how does Monster will know about my published SWF?
I'm using FlashDevelop/FlashCS5 and Actionscript 3.
Sorry if this is a stupid question, but did you actually started Monster Debugger.exe after publishing and opening your project in browser? Also MonsterDebugger.initialize(); has second argument which is an address if you publishing and accessing your project on the server I suppose. Did you try to change it?
My bad. I had MonsterDebugger.initialize() statement to execute last in constructor of my document file. I moved initialize statement to be the very first line in my constructor. Now it attaches. Apparently there was some code that executed before initialize that caused issue. All is well now that it is the first line in the document file.
I am writing a little test program, and I have a problem regarding the ActionScript 3 Facebook API (Graph_API_Web_1_8_1.swc).
I am using FlashDevelop, and I correctly added the SWC file to the "lib" folder.
I also imported the Facebook API correctly in my class file (the auto-finish function of FD recognizes all code from there).
BUT, once I start compiling my code, I get the following error:
Error: Access of undefined property Facebook
for each line of code, that includes a Facebook call (such as Facebook.init(...), Facebook.login(...) and Facebook.logout(...)).
I added a screenshot of my FlashDevelop setup to clarify things:
This is even more mysterious to me, since the AIR application with the FacebookDesktop API is running without any errors.
How do I fix this problem?
This has happened to me several times. Don't waste your time looking into which ActionScript 3 SDK SWC version or Flex SDK you are using. It's just a weird bug. Instead, do the following.
Close FlashDevelop
Create a completely new project
Add the Facebook SWC to library
Then it should work. If not, reboot. It happened to me several times. I hope this helps.
I have a Flash AS3 application that uses FileReference.browse() to request a SWF from the user. If the chosen SWF is AS3, I'm good to go. However, if it's AS2, I need to load it into an AS2 wrapper first (so my app can alter it). All of these files (including my app and wrapper) are intended to exist locally on the user's machine, but the file they select can exist in any directory. So to be clear: Main application (AS3) -> Wrapper (AS2) -> User's file (AS2)
I know how to get the uploaded file's ActionScript version from the Loader's loaderInfo.actionScriptVersion variable, and that's working correctly. My issue is how to pass the file from the AS3 application to the AS2 wrapper so it can load it.
My first thought was to dump the ByteArray from the FileReference's load() function into a SharedObject "cookie". This method seemed pretty bad from a user-experience point of view, but it seemed most likely to work. However, I've been unable to find any method within AS2 to load the ByteArray as a movie (in fact, AS2 doesn't even seem to have a ByteArray class). So the first potential solution to my problem would be if anyone knew of a method for loading a movie from a ByteArray in AS2.
My second thought was to pass the uploaded file's path to my wrapper via the already-setup LocalConnection bridge, and then just have it load the file from that. However, I can't find any way to get the file's path, and my Googling suggests the security model intentionally prevents it. Not to mention, I'm not sure I can load an arbitrary file from the user's machine.
My "hands up in the air; I give up" solution was to just create separate buttons for loading AS3 and AS2 files (leaving it up to the users to guess which it is!) and have the AS2 button actually within the AS2 wrapper. However, it looks like AS2 doesn't have a file browsing uploading API, and the PHP-hybrid solutions I've found aren't an option (because this is meant to be run locally).
So, I would be eternally grateful if anyone could point me in the right direction for solving any of these three roadblocks. Alternative workarounds are of course welcome.
(Edit)
Ok, I found the documentation for AS2's version of the FileReference class. It supports the same file-browsing capability, but does not support directly loading the selected file into the SWF.
However, the security sandbox doesn't seem as strict for local files as I expected, and it looks like I can load any SWF on the user's machine once I have a path to it. So I should be able use JavaScript and an HTML form with a file input to get and pass the file path to my application. It's not ideal having to do all of this from within a web browser, but it should work. If it turns out satisfactorily I'll submit it as an answer.
(Edit 2)
Scratch the HTML-form idea. Looks like the path is hidden from JavaScript for the same reasons Flash hides it. The only option I can think of now is to have the user copy and paste the path to the file...
After reading over your post, you may be able to retry one of your previous attemps with some new information. Actionscript 2 DOES have a method for looking up files from a browser, same as AS3 does. AS2 also has a FileReference class. Check out the documentation here:
http://help.adobe.com/en_US/AS2LCR/Flash_10.0/help.html?content=00001040.html
Also, here is a tutorial:
http://markshu.ca/imm/flash/tutorial/fileReference.html
Well, all of my other leads have dried up, so I'm submitting the two answers that will actually work, although neither is ideal:
A) Use Adobe AIR, which will give more access to the filesystem (such as for getting path info) at the cost of requiring the separate AIR runtime to be installed.
B) Have the user enter the path to the file themselves (cumbersome for the user)
I built an AS3 image gallery using FlashDevelop.
Before I zip up the application, I can run the image gallery in my browser by simply opening the index.html for the project. Everything works perfectly.
I then zip up the project as proj-0.1.2.zip using winrar.
I then unzip this newly created zip and try to load the application using the project index.html like above. The gallery doesn't function properly. From seeing what happens, it appears as though the image metadata is not present(but I'm not sure, see below).
There are other applications as well that are broken. Videos don't load. If an application doesn't depend on any external assets then everything looks fine.
Another thing..If I then build the FlashDevelop project and republish the swf..then it works in the index.html like I want. What is going on here?
I want people to be able to fire up my demo apps out of the box by just running the index.html. If that doesn't always work and they have to figure out that they need to rebuild the SWF then that's pretty bad.
I don't think zipping is the problem, I think moving to a different folder is a problem.
I assume you are running this index.html on your local PC, and not on a webserver?
By default, Flash cannot access from a local SWF to load other local files. However, FlashDevelop / Flash CS3 / Flex Builder, in order to get around this restriction, set some flags in the flash player telling him "This SWF is a trusted SWF, allow him to open local files". But it's based on the exact location of the SWF.
There's a setting somewhere in the compiler, that sets a flag in the SWF saying "This SWF can access local data", but there's one downside: It blocks all access to network resources. So it's either/or: access local data, OR access network resources (anything that goes over HTTP, Socket, etc). I'm not sure where this setting is offhand. It may be that the default setting for Flash CS3 is different than the default setting for FlashDevelop.
Anyway, the easy way to avoid all this issue is to not run the file locally. Put it on your webserver before testing.
In a panic since I'm trying to meet a deadline so appreciate any feedback on this.
For some reason, Flexbuilder 3 on my mac won't launch, crashes on startup.
I've never experienced this before.
Checked the .log file and what seems to be the problem is the following
/Users/foo/Library/Preferences/Macromedia/Flash Player/#Security/FlashPlayerTrust/flexbuilder.fbr (No such file or directory)
WTF is the flexbuilder.fbr???
Googled but not much luck.
The only thing I've done that might have caused this is change flash player versions system wide using the official flash player uninstaller...but obviously this should not happen
Any feedback appreciated...
It's hard to know where it went, but this file just contains a number of paths of 'trusted' locations for the Flash Player. Normally when you create a new workspace in FlexBuilder it adds the workspace location to this file, or if you create a project outside of the workspace it adds the project path.
It's surprising the absence of that file would keep FlashBuilder from launching though.
Ok, my workaround was to simply create an empty text file called flexbuilder.fbr in the location of the missing file.
But still would like to know the purpose of this file and how it went MIA...