Add Go to coordinates

[766974616c79]

My PR adds a "Go to coordinates" button in the "View" category. After clicking it, a dialog opens where the user can enter coordinates. I use Vector3 to parse the input vector and then update the camera's target position accordingly.

Resolves #1361

[Copilot]

Pull request overview

This PR adds an editor “Go to coordinates” action that opens a dialog, parses a Vector3 from the user’s input, and uses it to move the scene view camera smoothly to the specified position.

Changes:

• Exposes SceneViewportWidget.cameraTargetPosition as internal so it can be set from outside the class.
• Adds a “Go to coordinates” entry to the View menu via MainAssetBrowser.AddViewMenuButtons, which shows a Dialog.AskString prompt and, on submit, parses the input into a Vector3 and assigns it to the selected scene viewport’s cameraTargetPosition.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
game/addons/tools/Code/Scene/SceneView/SceneViewportWidget.cs	Makes cameraTargetPosition internal so external code (like menu actions) can trigger camera moves by setting a target position.
game/addons/tools/Code/Editor/AssetBrowser/MainAssetBrowser.cs	Adds the “Go to coordinates” View menu option, opens an input dialog, parses a Vector3 from the entered string, and attempts to set the selected viewport’s cameraTargetPosition.

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[Copilot]

SceneViewportWidget.LastSelected is referenced here but there is no corresponding static LastSelected property or field defined on SceneViewportWidget, so this will not compile. It looks like you intended to use the existing SceneViewWidget.Current?.LastSelectedViewportWidget instead to access the active viewport before setting cameraTargetPosition.

Suggested change

	SceneViewportWidget.LastSelected?.cameraTargetPosition = parsedCoordinates;
	var viewport = SceneViewWidget.Current?.LastSelectedViewportWidget;
	if ( viewport != null )
	{
	viewport.cameraTargetPosition = parsedCoordinates;
	}

[Copilot]

Vector3.Parse(coordinates) is called directly on user input from Dialog.AskString without any validation or error handling, so entering an invalid coordinate string (e.g. a typo or wrong format) will throw and likely surface as an unhandled exception in the editor. Consider validating the input format and handling parse failures (e.g. by rejecting the dialog input with a message) instead of letting the parse exception propagate.

Suggested change

	var parsedCoordinates = Vector3.Parse( coordinates );
	SceneViewportWidget.LastSelected?.cameraTargetPosition = parsedCoordinates;
	try
	{
	var parsedCoordinates = Vector3.Parse( coordinates );
	SceneViewportWidget.LastSelected?.cameraTargetPosition = parsedCoordinates;
	}
	catch
	{
	// Invalid coordinates entered; ignore and avoid crashing the editor.
	}