83 lines
3.4 KiB
Markdown
83 lines
3.4 KiB
Markdown
# Add documentation to a Custom C# node
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You can also add [Graph Inspector](vs-interface-overview.md#the-graph-inspector) documentation to a Custom C# node. Visual Scripting displays the documentation in the Graph Inspector when you select a node in a Script Graph. The documentation isn't required to use the node, but can help your users understand the purpose and usage of a node.
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To add documentation to a node:
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1. [!include[vs-open-project-window](./snippets/vs-open-project-window.md)]
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> [!NOTE]
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> If you already have an **Editor** folder in your project, you can skip Steps 2-3.
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2. Right-click your **Assets** folder or select **Add** (+), then select **Folder**.
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1. Name the folder **Editor**.
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3. Do one of the following:
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- Right-click your **Editor** folder in the Project window's folder list.
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- Right-click anywhere in the Project window's preview pane with your **Editor** folder selected.
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4. [!include[vs-create-c-script](./snippets/vs-create-c-script-project.md)]
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5. Enter a name, such as `MyNodeDescriptor` for the new script file.
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1. Press Enter.
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6. [!include[vs-open-new-external-code](./snippets/vs-open-new-external-code.md)]
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7. In your external editor, copy and paste the following code into the C# script:
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```C#
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using System;
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using Unity.VisualScripting;
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using UnityEngine;
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[Descriptor(typeof(MyNode))]
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public class MyNodeDescriptor : UnitDescriptor<MyNode>
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{
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public MyNodeDescriptor(MyNode unit) : base(unit) {}
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protected override void DefinedPort(IUnitPort port, UnitPortDescription description)
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{
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base.DefinedPort(port, description);
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switch (port.key)
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{
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case "inputTrigger":
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description.summary = "Trigger the concatenation of two strings, myValueA and myValueB, and return the result string on the Result port.";
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break;
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case "myValueA":
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description.summary = "First string value.";
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break;
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case "myValueB":
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description.summary = "Second string value.";
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break;
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case "outputTrigger":
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description.summary = "Execute the next action in the Script Graph after concatenating myValueA and myValueB.";
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break;
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case "result":
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description.summary = "The result string obtained from concatenating myValueA and myValueB.";
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break;
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}
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}
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}
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```
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You can modify the script to suit the specifics of your own node.<br/>
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8. [!include[vs-save-script](./snippets/vs-save-script.md)]
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1. [!include[vs-return-unity](./snippets/vs-return-unity.md)]
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9. Do one of the following:
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- [!include[vs-open-graph-w-node](./snippets/custom-c-nodes/vs-open-graph-w-node.md)].
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- [!include[vs-ff-add-node](./snippets/custom-c-nodes/vs-ff-add-node.md)]
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10. Select the node and open the [Graph Inspector](vs-interface-overview.md#the-graph-inspector) to view your documentation.
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## Next steps
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After you add documentation to a node, you can choose to further customize the node with [node class and port attributes](vs-create-custom-node-attributes-reference.md).
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