Trouble Serializing JSON data for an object array from JS for Unity-CodePudding

I am trying to send data from JS to C# in Unity in a WebGL project, but I am not as familiar with javascript and JSON.

In the JS code, I am serializing an array of objects from js with Json.Stringify, and that is sent to Unity as a string. This is what comes through to Unity...

[
    [],[],[],[],
    [
        {
            "damage": 0,
            "opaque": false,
            "safe": false

        }
    ],

    [
        {
            "damage": 0,
            "opaque": false,
            "safe": false
        }
    ]
]

I did not write the js code, so I am not sure what exactly to post. If it seems like my Unity code is okay, I will try to see what I can share from js.

I am not sure why there are empty brackets above. I wonder if unity is getting stuck trying to serialize those empty sets.

I made two Serializable classes in Unity for the incoming objects.

[System.Serializable]
public class minimap
{
    public int damage;
    public bool opaque;
    public bool safe;

}

[System.Serializable]
public class minimaps
{
    public minimap[] minimapArray;
}

On a gameObject, I placed a script that is called from JS. The "Json convert completed" works, but the minimap loop does not. The array seems to have something in it, but not what I was hoping for unless I am not accessing it properly.

public class GameController : MonoBehaviour
{
    public JsonDeserialize(string minimap)
    {
        minimaps minimaps = JsonUtility.FromJson<minimaps>(minimap);

        if(minimaps != null) _debugText.text  = "JSON convert completed";

        foreach (minimap mm in minimaps.minimapArray)
        {
            _debugText.text  = "Damage: "   mm.damage   "opaque: "   mm.opaque;
        }

    }
}

Thanks for reading and any help!

CodePudding user response：

try this

if(!string.IsNullOrEmpty(minimap)
{
  minimap[][] minimaps = JsonUtility.FromJson<minimaps[][]>(minimap);

 if(minimaps!=null)
 {
  foreach (var mms in minimaps)
  {
      if(mms==null) _debugText.text ="Error: mms is null";
      else
       foreach (minimap mm in mms)
         _debugText.text  = "Damage: "   mm.damage   "opaque: "   mm.opaque;
   }
 }
} else _debugText.text ="Error: minimaps is null";
} else _debugText.text ="Error: minimap is an empty string";

but I highly recommend you to google and istall Newtonsoft.Json for Unity3d

using Newtonsoft.Json;

 minimap[][] minimaps = JsonConvert.DeserializeObject<minimaps[][]>(minimap);