helpers/action.py

   1 import pygame
   2 import time
   3
   4 class Action:
   5     action_types = [
   6         'command',
   7         'pause',
   8         'play',
   9         'stop',
  10         'stop_all_actions',
  11         'volume',
  12         'wait',
  13     ]
  14
  15     def __init__(self, action, key, **kwargs):
  16         if action in self.action_types:
  17             self.action = action
  18         else:
  19             raise Exception("Unknown action {}".format(action))
  20
  21         self.key = key
  22         self.arguments = kwargs
  23
  24     def ready(self):
  25         if 'music' in self.arguments:
  26             return self.arguments['music'].loaded
  27         else:
  28             return True
  29
  30     def run(self):
  31         print(self.description())
  32         return getattr(self, self.action)(**self.arguments)
  33
  34     def description(self):
  35         return getattr(self, self.action + "_print")(**self.arguments)
  36
  37     def command(self, command = "", **kwargs):
  38         pass
  39
  40     def pause(self, music = None, **kwargs):
  41         if music is not None:
  42             music.pause()
  43         else:
  44             pygame.mixer.pause()
  45
  46     def play(self, music = None, fade_in = 0, start_at = 0,
  47             restart_if_running = False, volume = 100, **kwargs):
  48         if music is not None:
  49             if restart_if_running:
  50                 if music.is_playing():
  51                     music.stop()
  52                 music.play(volume = volume, fade_in = fade_in, start_at = start_at)
  53             else:
  54                 if not music.is_playing():
  55                     music.play(volume = volume, fade_in = fade_in, start_at = start_at)
  56         else:
  57             pygame.mixer.unpause()
  58
  59     def stop(self, music = None, fade_out = 0, **kwargs):
  60         if music is not None:
  61             music.stop(fade_out = fade_out)
  62         else:
  63             if fade_out > 0:
  64                 pygame.fadeout(fade_out * 1000)
  65             else:
  66                 pygame.mixer.stop()
  67
  68     def stop_all_actions(self, **kwargs):
  69         self.key.mapping.stop_all_running()
  70
  71     def volume(self, music = None, value = 100, **kwargs):
  72         if music is not None:
  73             music.set_volume(value)
  74         else:
  75             pass
  76
  77     def wait(self, duration = 0, **kwargs):
  78         # FIXME: Make it stoppable
  79         # http://stackoverflow.com/questions/29082268/python-time-sleep-vs-event-wait
  80         time.sleep(duration)
  81
  82     def command_print(self, command = "", **kwargs):
  83         return "running command {}".format(command)
  84
  85     def pause_print(self, music = None, **kwargs):
  86         if music is not None:
  87             return "pausing {}".format(music.filename)
  88         else:
  89             return "pausing all musics"
  90
  91     def play_print(self, music = None, fade_in = 0, start_at = 0,
  92             restart_if_running = False, volume = 100, **kwargs):
  93         message = "starting "
  94         if music is not None:
  95             message += music.filename
  96         else:
  97             message += "music"
  98
  99         if start_at != 0:
 100             message += " at {}s".format(start_at)
 101
 102         if fade_in != 0:
 103             message += " with {}s fade_in".format(fade_in)
 104
 105         message += " at volume {}%".format(volume)
 106
 107         if restart_if_running:
 108             message += " (restarting if already running)"
 109
 110         return message
 111
 112     def stop_print(self, music = None, fade_out = 0, **kwargs):
 113         if music is not None:
 114             if fade_out == 0:
 115                 return "stopping music {}".format(music.filename)
 116             else:
 117                 return "stopping music {} with {}s fadeout".format(music.filename, fade_out)
 118         else:
 119             if fade_out == 0:
 120                 return "stopping all musics"
 121             else:
 122                 return "stopping all musics with {}s fadeout".format(fade_out)
 123
 124     def stop_all_actions_print(self, **kwargs):
 125         return "stopping all actions"
 126
 127     def volume_print(self, music = None, value = 100, **kwargs):
 128         if music is not None:
 129             return "setting volume of {} to {}%".format(music.filename, value)
 130         else:
 131             return "setting volume to {}%".format(value)
 132
 133     def wait_print(self, duration, **kwargs):
 134         return "waiting {}s".format(duration)
 135
 136