made ursfx ui not get created on import but on open.

ursina/prefabs/ursfx.py

@@ -51,7 +51,7 @@ def ursfx(volume_curve, volume=.75, wave='sine', pitch=0, pitch_change=0, speed=
     return a
 
 
-class SynthGUI(Entity):
+class UrsfxGUI(Entity):
     def __init__(self, **kwargs):
         super().__init__(parent=camera.ui, z=-998, **kwargs)
 
@@ -270,19 +270,21 @@ def play(self):
 
         self.code_text.text = self.recipe
 
-if __name__ == '__main__':
-    app = Ursina()
-
-gui = SynthGUI(enabled=False)
-
-def toggle_gui_input(key):
-    if key == 'f3':
-        gui.enabled = not gui.enabled
+gui = None
+def open_gui():
+    global gui
+    if not gui:
+        gui = UrsfxGUI(enabled=False)
 
-Entity(input=toggle_gui_input)
+        def toggle_gui_input(key):
+            if key == 'f3':
+                gui.enabled = not gui.enabled
+        Entity(input=toggle_gui_input)
+    gui.enabled = True
 
 
 if __name__ == '__main__':
+    app = Ursina()
+    sfx_editor = UrsfxGUI()
     Sprite('shore', z=10, ppu=64, color=color.gray)
-    gui.enabled = True
     app.run()

ursina/window.py

@@ -191,7 +191,7 @@ def _collider_counter_update():
             # 'Build' : Func(print, ' '),
             'API Reference' : Func(webbrowser.open, 'https://www.ursinaengine.org/api_reference.html'),
             # 'Asset Store' : Func(webbrowser.open, 'https://itch.io/tools/tag-ursina'),
-            'ursfx (Sound Effect Maker)' : lambda: exec('from ursina.prefabs import ursfx; ursfx.gui.enabled = True'),
+            'ursfx (Sound Effect Maker)' : lambda: exec('from ursina.prefabs import ursfx; ursfx.open_gui()'),
             # 'Open Scene Editor' : Func(print, ' '),
             'Change Render Mode <gray>[F10]<default>' : self.next_render_mode,
             'Reset Render Mode <gray>[Shift+F10]<default>' : Func(setattr, self, 'render_mode', 'default'),