72 lines
3.2 KiB
Markdown
72 lines
3.2 KiB
Markdown
# Trigger a Custom Scripting Event from a C# script
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You can send or trigger a Custom Scripting Event node in a Script Graph with a C# script instead of a Custom Scripting Event Sender node. For more information on how to create a Custom Scripting Event Sender node, see [Create a Custom Scripting Event Sender node](vs-create-own-custom-event-send-node.md).
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> [!NOTE]
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> Before you can trigger a Custom Scripting Event node, you must create your Custom Scripting Event node. [!include[tasks-note-end](./snippets/custom-events/vs-tasks-note-end.md)].
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To trigger an Event from a C# script:
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1. [!include[open-project-window](./snippets/vs-open-project-window.md)]
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1. [!include[right-click-project](./snippets/custom-events/vs-right-click-project.md)]
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1. [!include[create-c-script-project](./snippets/vs-create-c-script-project.md)]
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1. Enter a name, such as `CodeTriggerCustomEvent`, for the new script file.
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1. Press Enter.
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1. [!include[open-new-external-code](./snippets/vs-open-new-external-code.md)]
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1. In your external editor, copy and paste the following code into your C# script:
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```csharp
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using Unity.VisualScripting;
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using UnityEngine;
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public class CodeTriggerCustomEvent : MonoBehaviour
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{
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void Update()
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{
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if (Input.anyKeyDown)
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{
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//Trigger the previously created Custom Scripting Event MyCustomEvent with the integer value 2.
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EventBus.Trigger(EventNames.MyCustomEvent, 2);
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}
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}
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}
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```
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1. [!include[save-script](./snippets/vs-save-script.md)]
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1. [!include[return-unity](./snippets/vs-return-unity.md)]
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1. [!include[open-hierarchy-window](./snippets/vs-open-hierarchy-window.md)]
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1. Do one of the following in the Hierarchy window:
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- Select an existing GameObject where you want to attach the new script.
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- Select **Add New** (+) and in the menu, select a new GameObject to add to your scene from any of the available options. You can also right-click anywhere in the Hierarchy window and select the same options in the context menu.
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1. [!include[open-inspector-window](./snippets/vs-open-inspector-window.md)]
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1. Select **Add Component**.
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1. In the Component menu, enter the name of the script file.
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1. Select it to add it to the GameObject.
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1. Select **Play** from [the Unity Editor's Toolbar](https://docs.unity3d.com/Manual/Toolbar.html) to enter Play mode.
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1. Press any key on keyboard in the [Game view](https://docs.unity3d.com/Manual/GameView.html).
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Visual Scripting triggers your Event in any Script Graph in the current scene that contains the Custom Scripting Event node.
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## Next steps
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After you create the script, you can [create a script to listen to your Event](vs-create-own-custom-event-listen-code.md).
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You can also [create an Event Sender node](vs-create-own-custom-event-send-node.md) to trigger the Event from another Script Graph or location in the same Script Graph.
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