36 lines
1.5 KiB
Markdown
36 lines
1.5 KiB
Markdown
---
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uid: input-system-use-in-editor
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---
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# Using Input in the Editor
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Unlike Unity's old Input Manager, you can use the new Input System from within `EditorWindow` code as well. For example, you can gain access to pen pressure information like this:
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```CSharp
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class MyEditorWindow : EditorWindow
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{
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public void OnGUI()
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{
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var pen = Pen.current;
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if (pen != null)
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{
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var position = pen.position.ReadValue();
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var pressure = pen.pressure.ReadValue();
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//...
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}
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}
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}
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```
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This encompasses all code called from `OnGUI()` methods, which means that you can also use the Input System in property drawers, Inspectors, and other similar places.
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>__Note__: Unity doesn't support Actions in Edit mode.
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## Coordinate System
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The coordinate system differs between `EditorWindow` code and `UnityEngine.Screen`. `EditorWindow` code has its origin in the upper-left corner, with Y down. `UnityEngine.Screen` has it in the bottom-left corner, with Y up.
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The Input System compensates for that by automatically converting coordinates depending on whether you call it from your application or from Editor code. In other words, calling `Mouse.current.position.ReadValue()` from inside `EditorWindow` code returns mouse coordinates in Editor UI coordinates (Y down), and reading the position elsewhere returns it in application screen coordinates (Y up).
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Internally, an editor-specific Processor called `AutoWindowSpace` handles this translation.
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