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         'unpause',
  12         'volume',
  13         'wait',
  14     ]
  15
  16     def __init__(self, action, key, **kwargs):
  17         if action in self.action_types:
  18             self.action = action
  19         else:
  20             raise Exception("Unknown action {}".format(action))
  21
  22         self.key = key
  23         self.arguments = kwargs
  24
  25     def ready(self):
  26         if 'music' in self.arguments:
  27             return self.arguments['music'].loaded
  28         else:
  29             return True
  30
  31     def run(self):
  32         print(self.description())
  33         getattr(self, self.action)(**self.arguments)
  34         pygame.event.post(pygame.event.Event(pygame.USEREVENT))
  35
  36     def description(self):
  37         return getattr(self, self.action + "_print")(**self.arguments)
  38
  39     def command(self, command = "", **kwargs):
  40         pass
  41
  42     def pause(self, music = None, **kwargs):
  43         if music is not None:
  44             music.pause()
  45         else:
  46             pygame.mixer.pause()
  47
  48     def unpause(self, music = None, **kwargs):
  49         if music is not None:
  50             music.unpause()
  51         else:
  52             pygame.mixer.unpause()
  53
  54     def play(self, music = None, fade_in = 0, start_at = 0,
  55             restart_if_running = False, volume = 100, **kwargs):
  56         if music is not None:
  57             if restart_if_running:
  58                 if music.is_playing():
  59                     music.stop()
  60                 music.play(volume = volume, fade_in = fade_in, start_at = start_at)
  61             else:
  62                 if not music.is_playing():
  63                     music.play(volume = volume, fade_in = fade_in, start_at = start_at)
  64         else:
  65             pygame.mixer.unpause()
  66
  67     def stop(self, music = None, fade_out = 0, **kwargs):
  68         if music is not None:
  69             music.stop(fade_out = fade_out)
  70         else:
  71             if fade_out > 0:
  72                 pygame.fadeout(fade_out * 1000)
  73             else:
  74                 pygame.mixer.stop()
  75
  76     def stop_all_actions(self, **kwargs):
  77         self.key.mapping.stop_all_running()
  78
  79     def volume(self, music = None, value = 100, **kwargs):
  80         if music is not None:
  81             music.set_volume(value)
  82         else:
  83             pass
  84
  85     def wait(self, duration = 0, music = None, **kwargs):
  86         # FIXME: Make it stoppable
  87         # http://stackoverflow.com/questions/29082268/python-time-sleep-vs-event-wait
  88         if music is None:
  89             time.sleep(duration)
  90         else:
  91             # TODO
  92             music.wait_end()
  93
  94     def command_print(self, command = "", **kwargs):
  95         return "running command {}".format(command)
  96
  97     def pause_print(self, music = None, **kwargs):
  98         if music is not None:
  99             return "pausing « {} »".format(music.name)
 100         else:
 101             return "pausing all musics"
 102
 103     def unpause_print(self, music = None, **kwargs):
 104         if music is not None:
 105             return "unpausing « {} »".format(music.name)
 106         else:
 107             return "unpausing all musics"
 108
 109     def play_print(self, music = None, fade_in = 0, start_at = 0,
 110             restart_if_running = False, volume = 100, **kwargs):
 111         message = "starting "
 112         if music is not None:
 113             message += "« {} »".format(music.name)
 114         else:
 115             message += "music"
 116
 117         if start_at != 0:
 118             message += " at {}s".format(start_at)
 119
 120         if fade_in != 0:
 121             message += " with {}s fade_in".format(fade_in)
 122
 123         message += " at volume {}%".format(volume)
 124
 125         if restart_if_running:
 126             message += " (restarting if already running)"
 127
 128         return message
 129
 130     def stop_print(self, music = None, fade_out = 0, **kwargs):
 131         if music is not None:
 132             if fade_out == 0:
 133                 return "stopping music « {} »".format(music.name)
 134             else:
 135                 return "stopping music « {} » with {}s fadeout".format(music.name, fade_out)
 136         else:
 137             if fade_out == 0:
 138                 return "stopping all musics"
 139             else:
 140                 return "stopping all musics with {}s fadeout".format(fade_out)
 141
 142     def stop_all_actions_print(self, **kwargs):
 143         return "stopping all actions"
 144
 145     def volume_print(self, music = None, value = 100, **kwargs):
 146         if music is not None:
 147             return "setting volume of « {} » to {}%".format(music.name, value)
 148         else:
 149             return "setting volume to {}%".format(value)
 150
 151     def wait_print(self, duration, **kwargs):
 152         return "waiting {}s".format(duration)
 153
 154