Reply To: Share Blackboard across Agents with same Behaviour Tree

December 5, 2017 at 7:14 pm #12739

Gavalakis

Keymaster

Hello,

Hmm. There are two possible solutions that I can think of for this.

1) You can use the Blackboard API, to set the variables by code directly. For example:

public void SetVariables(){

var bb = GetComponent<Blackboard>();

bb.SetValue("myFloat", 13f);

bb.SetValue("myColor", Color.yellow);

}

2) You could save a Blackboard variables to a serialized json string and store it somewhere, then deserialize the target blackboard you want, using that json. Some example code:

public class Examples : MonoBehaviour {

public string blackboardPresetJson;

public void SaveToJson(){

var bb = GetComponent<Blackboard>();

blackboardPresetJson = bb.Serialize();

}

public void LoadFromJson(){

var bb = GetComponent<Blackboard>();

bb.Deserialize(blackboardPresetJson);

}

You could of course also create some editor utility to save the json string to a file in editor only, like for example:

[ContextMenu("Save Attached Blackboard To Preset File")]

public void SaveToFile(){

var bb = GetComponent<Blackboard>();

var path = EditorUtility.SaveFilePanelInProject("Save Preset", string.Empty, "bb", string.Empty);

if (!string.IsNullOrEmpty(path)){

System.IO.File.WriteAllText( path, bb.Serialize() );

AssetDatabase.Refresh();

}

Then in runtime you would need to of course have a reference to that saved TextAsset file and deserialize the blackboard from it’s contents. Once again, for example:

public TextAsset presetFile;

public void LoadPreset(){

var bb = GetComponent<Blackboard>();

bb.Deserialize( presetFile.text );

}

Let me know if any of the above solutions works for you.

Thanks!

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