nme/AssetData.hx: needed for openfl asset embedding when running headless and compiling without openfl

AssetData.hx

package nme;


import sys.FileSystem;
import openfl.Assets;



enum LibraryType {

    SWF;
    SWF_LITE;
    XFL;

}


class AssetData {
    public static var library:Map <String, LibraryType>;
    public static var path:Map <String, String>;
    public static var type:Map <String, AssetType>;
    
    private static var initialized:Bool = false;
    
    public static function setPaths(dir, new_dir, resource_type) {
        var files = FileSystem.readDirectory(dir);
        for (file in files) {
#if debug
            trace(new_dir + '/' + file);
#end
            if (FileSystem.isDirectory(dir + '/' + file))
                setPaths(dir + '/' + file, new_dir + '/' + file, resource_type);
            else {
                AssetData.path.set(new_dir + '/' + file, dir + '/' + file);
                AssetData.type.set(new_dir + '/' + file, Reflect.field(AssetType, resource_type.toUpperCase ()));
            }
        }
    }
    
    public static function initialize ():Void {
        
        if (!initialized) {
            
            path = new Map<String, String> ();
            type = new Map<String, AssetType> ();
            library = new Map<String, LibraryType> ();
            
            setPaths("assets/graphics", "graphics", "image");
            setPaths("assets/maps", "maps", "text");
            setPaths("assets/data", "data", "text");
            
            initialized = true;
        }
    }
}