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Loading a file with a custom extension as a TextAsset

Discussion in 'Addressables' started by Firewolf34, Feb 6, 2019.

  1. Firewolf34


    May 14, 2013
    Perhaps this is not the right subforum to post this in, as I realize the Addressable Assets System is based on the underlying Unity Asset Database and how it interprets files... but I have a similar issue while using the AAS to @MaxBowser in his thread here:

    When I try to load a text file with a custom extension (they are actually a custom Class serialized into JSON and written to disk, marked as Addressable) using this form:
    Addressables.LoadAssets<TextAsset>("Assets/BlockConfigs/Default.bconfig", null).Completed += onLoadHandler;

    I get a bunch of nulls back in the onLoadHandler Result array, because Unity does not see these files as TextAssets. I need Unity to interpret my file as a text file, and load it as a TextAsset, despite it's non-txt extension. Is there any way I could get the Addressable Assets system to help me with this? Perhaps by using a Resource Handler or something?

    Here's what my AddressableAssets database currently looks like, as you can see only two objects exist:

    Everything works fine when the extension of these files end in ".txt", but the system returns nulls if they have my custom extension.

    As you can see, they are pretty simple UTF-8 formatted JSON text files:

    Code (CSharp):
    1. {
    2.     "renderables": {
    3.         "renderable0": {
    4.             "instanceID": 6316
    5.         },
    6.         "renderable1": {
    7.             "instanceID": 0
    8.         },
    9.         "renderable2": {
    10.             "instanceID": 0
    11.         },
    12.         "renderable3": {
    13.             "instanceID": 0
    14.         },
    15.         "renderable4": {
    16.             "instanceID": 0
    17.         }
    18.     },
    19.     "castShadows": false,
    20.     "receiveShadows": false,
    21.     "renderableGroup": {
    22.         "i0": 0,
    23.         "i1": -1,
    24.         "i2": -1,
    25.         "i3": -1,
    26.         "i4": -1
    27.     }
    28. }
    Thanks in advance for your help!!

    Here's the script I used for testing this, if you're interested (it's very short):
    Last edited: Feb 6, 2019
  2. kleicht


    Aug 1, 2018
    According to the manual:
    "The supported text formats are:

    • .txt
    • .html
    • .htm
    • .xml
    • .bytes
    • .json
    • .csv
    • .yaml
    • .fnt
  3. Firewolf34


    May 14, 2013
    Oh, nice. I suppose I can just use JSON extension then. Thanks!

    I would still appreciate if anyone had any info about how to do a custom extension though, if anyone knows a way. I did look into the whole Custom Importer experimental stuff, didn't work for my use case though (can't create TextAssets like that). But thanks again, man.
  4. pointcache


    Sep 22, 2012
    you can use scriptable asset importer and convert the file to textasset on import. Not sure that it will work with the whole pipeline, but its going to be an actual asset.