Dynamic File Loading

#1

so I’m making a rhythm game where the players can create custom maps and add custom songs (json, mp3, png for background), but i don’t know how to load files which weren’t present during the build.

1 Like
#2

https://api.openfl.org/openfl/net/URLLoader.html This API embodies one cross platform solution.

#3

does it also work with local files?

#4

For local files you can use

ByteArray.loadFromFile() which in the background is similar to URLLoader’s logic, or if you’re not using HTML/JS or Flash, Haxe’s File.getBytes(). Whichever suits your needs, there are several methods to achieve the same results.

I recommend async loading of data for multiple reasons even in desktop/mobile apps.

#5

Yes, it works for local the local filesystem as well.

#6

thanks it worked with the json files but how do i do it for .ogg and .png files?

#7

For audio and image files, OpenFL has static methods Sound.fromFile( filepath ) and BitmapData.fromFile( filePath ).

#8

but how do i use BitmapData.fromFile(); on FlxSprites?

#9

Sorry, I wasn’t aware that you were using HaxeFlixel.

I’m not familiar with HaxeFlixel, but by looking at the API, it looks like you can one of the following:

var bitmapData:BitmapData = BitmapData.fromFile( srcPath );
myFlxSprite.graphics = FlxGraphic.fromBitmapData(bitmapData);

or
myFlxSprite.pixels = BitmapData.fromFile( srcPath );

as indicated by these API references below:


#10

thanks it worked

even tho i had to do

var mySprite = new FlxSprite(0, 0, bitmapData);

now i just have to find out how to do it with audio files (FlxSound)

#11

Maybe this?

var byteArray:ByteArray = ByteArray.fromFile(soundSrcPath);
myFlxSound.loadByteArray(byteArray);
#12

loadByteArray() only works on flash11 (i build to windows / linux)

#13

ok i got it by doing this:

var musicData:ByteArray = ByteArray.fromFile(audioSrc);

var music = new Sound();
music.loadCompressedDataFromByteArray(musicData, musicData.length);

FlxG.sound.playMusic(music);

thanks you guys helped me a lot!