Correct issue with changing scale of joystick at runtime

[ztc0611]

If you have any method to handle window resizing which changes the scale of the joystick, the joystick ceases functioning once that runs. This fixes the issue and doesn't create any new ones as far as I can see. I don't think this has any performance hit, but if that is a concern I can modify the code to only rescale it based on a checkbox.

[MarcoFazioRandom]

Hello, The purpose of the var _base_radius is to calculate _base.size * _base.get_global_transform_with_canvas().get_scale() / 2 just at the start and saving the result. By recalculating it every frame its purpose is defeated. I thought of 4 better (imho) alternatives:

• Change _base_radius to a function _get_base_radius().
• Find a event/signal for the window's resize and recalculating _base_radius there.
• Similar to your solution, recalculate _base_radius in the _input function, but not at the top, after lines 74 and 87.
• Recompute _base_radius inside _is_point_inside_base‎ and _update_joystick‎. <- this seems like the cleanest solution to me.

[ztc0611]

I think I did what you intended? Tell me if it's still wrong and I'll be on it.