Godot: Expose CanvasItemEditor.snap_point() and CanvasItemEditor.snap_angle() to GDscript to use in EditorPlugins.

[efirdc]

I would like to make an EditorPlugin that has draggable points that snap to the 2d canvas grid. Plugins like Path2DEditor, CollisionPolygon2DEditor, Line2DEditor, ect, all use CanvasItemEditor.snap_point() to snap to the grid. I don't think there is a good way to even get the snap settings alone in gdscript. Right now I use get_editor_interface().get_base_control(), then I recursively search through all the child nodes to find the SnapDialog and the MenuButton with "Edit" text. Then I read all the snap settings directly from the UI so I can make my own snap_point(). Would be very convenient if these functions were available in some way to GDscript.

[groud]

I'm currently working on improving this function to perform smart snapping. I can make it available to gdscript on the way.

[groud]

This ended up more diffcult than I though to implement. It needs the editor classes to be available to GDscript which is not the case yet. Should be done but only when 'tool' is set in a script.

[MCrafterzz]

@groud Have you figured it out?

[groud]

Well I'm not sure it is clear enough for it to be exposed. I'll have a look someday.

[Piet-G]

I'm having this issue as well, the lack of these functions makes creating custom nodes with editable settings really annoying.

[Takanu]

+1, this is pretty important to have access to for both 2D and 3D tools.

[KarlWerf]

I would like to make custom snap settings (for a hex grid) would that be covered in what you're doing here @groud, or should I create a new issue?

[groud]

Handling a hex grid requires a rework of the grid system, it's unrelated to this issue.

[akien-mga]

@groud What's the status on this issue?

[groud]

@groud What's the status on this issue?

Not done yet ^^. However, I'd like to have a simple way to declare functions as editor (or tool scripts) only, I am not sure it can be done in a clean way for now.

[mechPenSketch]

@efirdc Did you find the function/variable that gets the snap settings by any chance? I'm looking for a way for my plugin such that when Configure Snap > Grid Step is set, it'll then set the snap settings in, say, a TileMap in the process.

[UPDATE] Nvm found the question/solution in which then links to this topic: https://godotengine.org/qa/18051/tool-script-in-3-0
I had to do some pruning refactoring as some variables become null in the process.

[takaturre]

Anyone wondering about the last missing steps for this mentioned hack - how to apply the values - the key is to set the values to the SpinBox controls and then press the OK button of the SnapDialog virtually (no need to popup):

For example, horizontal grid size to 100: spin_boxes[2].set_value(100), and to apply: snap_dialog.get_ok().emit_signal("pressed").

Documented the stuff here:
https://godotengine.org/qa/39440/can-i-get-snap-settings-in-a-script?show=79083#a79083