MonoBehaviour script for sending events to the graph

[bcristian]

Hello

Created this utility script that can raise graph events in response to Unity Events.
I’m using it in UI’s dynamically created by behaviors from data-bound templates.

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using System; using System.Collections.Generic; using System.Linq; using System.Text; using NodeCanvas.Framework; using ParadoxNotion; using UnityEngine;   namespace NodeCanvas.Tasks.Actions {     /// <summary>     /// Sends a graph event. The primary intended usage of this is to attach the SendEvent method to some Unity event (e.g. a button click)     /// and have that raise the graph event. The argument was previously set by a graph action, e.g. when instancing UI controls from a     /// behavior tree for each item in a list, set the argument field to the currently iterated value. Clicking the button will then raise     /// the graph event with that argument - each instanced button using the proper value.     /// </summary>     public class SendEventScript : MonoBehaviour     {         /// <summary>         /// The event argument. This will not serialize (or show in the inspector), but using the basic object type is what allows sending         /// any argument value, including types that Unity cannot serialize.         /// This should not be a big issue, as this should be runtime data anyway.         /// </summary>         public System.Object argument;           /// <summary>         /// The name of the event.         /// </summary>         public string eventName;           /// <summary>         /// The recipient of the event. Null for a global event.         /// </summary>         public GraphOwner recipient;           public void SendEvent()         {             var arg = new EventData<System.Object>(eventName, argument);             if (recipient)                 recipient.SendEvent(arg);             else                 Graph.SendGlobalEvent(arg);         }     } }

[bcristian]

In order for this to work though with typed event arguments, the following modification needs to be made in CheckEvent.cs:

original

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if (receivedEvent is EventData<T>){ saveEventValue.value = (receivedEvent as EventData<T>).value; }

replace with:

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if (receivedEvent.value is T)                     saveEventValue.value = (T)receivedEvent.value;

[Gavalakis]

Great!
Thanks for sharing 🙂

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[Gavalakis]

I will also make the modification to CheckEvent since it makes sense.

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[Author]

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