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path: root/helpers/action.py
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import pygame
import time

class Action:
    action_types = [
        'command',
        'pause',
        'play',
        'stop',
        'stop_all_actions',
        'volume',
        'wait',
    ]

    def __init__(self, action, key, **kwargs):
        if action in self.action_types:
            self.action = action
        else:
            raise Exception("Unknown action {}".format(action))

        self.key = key
        self.arguments = kwargs

    def ready(self):
        if 'music' in self.arguments:
            return self.arguments['music'].loaded
        else:
            return True

    def run(self):
        print(self.description())
        return getattr(self, self.action)(**self.arguments)

    def description(self):
        return getattr(self, self.action + "_print")(**self.arguments)

    def command(self, command = "", **kwargs):
        pass

    def pause(self, music = None, **kwargs):
        if music is not None:
            music.pause()
        else:
            pygame.mixer.pause()

    def play(self, music = None, fade_in = 0, start_at = 0,
            restart_if_running = False, volume = 100, **kwargs):
        if music is not None:
            if restart_if_running:
                if music.is_playing():
                    music.stop()
                music.play(volume = volume, fade_in = fade_in, start_at = start_at)
            else:
                if not music.is_playing():
                    music.play(volume = volume, fade_in = fade_in, start_at = start_at)
        else:
            pygame.mixer.unpause()

    def stop(self, music = None, fade_out = 0, **kwargs):
        if music is not None:
            music.stop(fade_out = fade_out)
        else:
            if fade_out > 0:
                pygame.fadeout(fade_out * 1000)
            else:
                pygame.mixer.stop()

    def stop_all_actions(self, **kwargs):
        self.key.mapping.stop_all_running()

    def volume(self, music = None, value = 100, **kwargs):
        if music is not None:
            music.set_volume(value)
        else:
            pass

    def wait(self, duration = 0, music = None, **kwargs):
        # FIXME: Make it stoppable
        # http://stackoverflow.com/questions/29082268/python-time-sleep-vs-event-wait
        if music is None:
            time.sleep(duration)
        else:
            # TODO
            music.wait_end()

    def command_print(self, command = "", **kwargs):
        return "running command {}".format(command)

    def pause_print(self, music = None, **kwargs):
        if music is not None:
            return "pausing {}".format(music.filename)
        else:
            return "pausing all musics"

    def play_print(self, music = None, fade_in = 0, start_at = 0,
            restart_if_running = False, volume = 100, **kwargs):
        message = "starting "
        if music is not None:
            message += music.filename
        else:
            message += "music"

        if start_at != 0:
            message += " at {}s".format(start_at)

        if fade_in != 0:
            message += " with {}s fade_in".format(fade_in)

        message += " at volume {}%".format(volume)

        if restart_if_running:
            message += " (restarting if already running)"

        return message

    def stop_print(self, music = None, fade_out = 0, **kwargs):
        if music is not None:
            if fade_out == 0:
                return "stopping music {}".format(music.filename)
            else:
                return "stopping music {} with {}s fadeout".format(music.filename, fade_out)
        else:
            if fade_out == 0:
                return "stopping all musics"
            else:
                return "stopping all musics with {}s fadeout".format(fade_out)

    def stop_all_actions_print(self, **kwargs):
        return "stopping all actions"

    def volume_print(self, music = None, value = 100, **kwargs):
        if music is not None:
            return "setting volume of {} to {}%".format(music.filename, value)
        else:
            return "setting volume to {}%".format(value)

    def wait_print(self, duration, **kwargs):
        return "waiting {}s".format(duration)