update README

GUI.py

@@ -231,23 +231,19 @@ def main_window(debug):
     fileName = str()
     finishGenerating = False
     oldNum = str()
-    while True:
     (event, values) = window.read()
     if event == ui.WINDOW_CLOSED:
-            break
+        pass
-
     elif event == 'Num':
         if len(values['Num']) > 3:
             window['Num'].update(oldNum)
         for x in range(4):
-                if x < len(values['Num']):
+            if x < len(values['Num']) or values['Num'][x] not in '0123456789':
-                    if values['Num'][x] not in '0123456789':
                 window['Num'].update(oldNum)
-                        break
-                else:
-                    oldNum = values['Num']
             
-        elif event == 'Generate':
+        oldNum = values['Num']
+        # continue
+    if event == 'Generate':
         basegame = ui.popup_get_file('Choose base game', no_titlebar=True, file_types=[('GBA File', '*.gba')], history=True, history_setting_filename=os.path.join('.', 'settings.json'))
         if basegame == '':
             ui.popup('Please select a Metroid Fusion (U) rom.', title='No source rom selected')
@@ -272,12 +268,11 @@ def main_window(debug):
                 window['Num'].update(disabled=True)
                 window['Patch'].update(disabled=True)
                 window['Generate'].update(disabled=True)
-
     if generating:
         ui.popup_animated(ui.DEFAULT_BASE64_LOADING_GIF, 'Generating game, please wait...', time_between_frames=20)
         window.Refresh()
-
+        # continue
-        elif finishGenerating:
+    if finishGenerating:
         ui.popup_animated(None)
         if failedgen:
             ui.popup('Could not generate a game with the current settings. Try changing your settings.', title='Metroid Fusion Open Randomizer')
@@ -304,5 +299,6 @@ def main_window(debug):
     window['Patch'].update(disabled=False)
     window['Generate'].update(disabled=False)
     finishGenerating = False
+    # continue
     window.close()