custom_camera_2d.gd

tool
class_name CustomCamera2D
extends Camera2D

# Overriding the set_zoom() method from Camera2D
func set_zoom(value):
    .set_zoom(value) # I want the set_zoom() setter of my class to do the same thing as Camera2D set_zoom() setter
    apply_changes()  # However I need to do something more, therefore calling another method after setting the zoom value

# Method that need to be applied when the zoom changed
func apply_changes():
    ...