「Godot」信号相关

Signal custom_signal
Signal custom_signal2(custom_param)

Signal custom_signal
Signal custom_signal2(custom_param)

custom_signal.connect(your_func)
custom_signal2.connect(your_func2.bind(your_param))

custom_signal.connect(your_func)
custom_signal2.connect(your_func2.bind(your_param))

custom_signal.emit()
custom_signal2.emit(your_param)

custom_signal.emit()
custom_signal2.emit(your_param)

# 重写_notification函数
func _notification(waht):
  if what == NOTIFICATION_WM_WINDOW_FOCUS_IN:
    print("获得焦点")
  if what == NOTIFICATION_WM_WINDOW_FOCUS_OUT:
    print("失去焦点")

# 重写_notification函数
func _notification(waht):
  if what == NOTIFICATION_WM_WINDOW_FOCUS_IN:
    print("获得焦点")
  if what == NOTIFICATION_WM_WINDOW_FOCUS_OUT:
    print("失去焦点")