GD-VirtualFileAccess/vfs_loaders.gd

static func validate_loader(loader:Callable)->bool:
	if loader.get_unbound_arguments_count() != 1:
		push_error("Cannot add loader for %s as only one String arg can be taken.")
		return false
	elif loader.get_bound_arguments()[0] is not String \
		or loader.get_bound_arguments()[0] is not StringName:
		push_error("Cannot add loader for %s as only one String arg can be taken.")
		return false
	return true


static func load_bin(buffer:PackedByteArray)->PackedByteArray: return buffer

static func load_png(buffer:PackedByteArray)->Image:
	var img := Image.new()
	img.load_png_from_buffer(buffer)
	return img

static func load_jpg(buffer:PackedByteArray)->Image:
	var img := Image.new()
	img.load_jpg_from_buffer(buffer)
	return img

static func load_mp3(buffer:PackedByteArray)->AudioStreamMP3:
	var sfx := AudioStreamMP3.new()
	sfx.data = buffer
	return sfx

static func load_ogg(buffer:PackedByteArray)->AudioStreamOggVorbis:
	return AudioStreamOggVorbis.load_from_buffer(buffer)

static func load_txt(buffer:PackedByteArray)->String:
	var txt:String = buffer.get_string_from_utf8()
	return txt

static func load_wav(buffer:PackedByteArray)->AudioStreamWAV:
	var sfx := AudioStreamWAV.new()
	push_warning("""
	Cannot automatically parse wav because dynamic Godot parsing wav is currently manual and awful.
	Despite this, somehow Godot's editor importer seems to handle parsing wav just fine.""")
	return sfx

# can't use CONST since Callables are technically instanced dynamically

static var DEFAULT_SUPPORTED_FILES:Dictionary[String,Callable] = {
	"bin": load_bin,
	"txt": load_txt,
	"png": load_png,
	"jpg": load_jpg,
	"jpeg": load_jpg,
	"mp3": load_mp3,
	"ogg": load_ogg,
	"wav": load_wav,
}

static var DATA_FILES:Dictionary[String,Callable] = {
	"bin": load_bin,
	"txt": load_txt,
}

static var IMAGE_FILES:Dictionary[String,Callable] = {
	"png": load_png,
	"jpg": load_jpg,
	"jpeg": load_jpg,
}

static var AUDIO_FILES:Dictionary[String,Callable] = {
	"mp3": load_mp3,
	"ogg": load_ogg,
	"wav": load_wav,
}