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"""Fichier contenant la volonté Virer."""

import re

from corps.fonctions import lisser
from secondaires.navigation.equipage.ordres.long_deplacer import LongDeplacer
from secondaires.navigation.equipage.ordres.relacher_gouvernail import \
        RelacherGouvernail
from secondaires.navigation.equipage.ordres.tenir_gouvernail import \
        TenirGouvernail
from secondaires.navigation.equipage.ordres.virer import Virer as OrdreVirer
from secondaires.navigation.equipage.volonte import Volonte

class Virer(Volonte):

    """Classe représentant une volonté.

    Cette volonté choisit un matelot pour, si besoin, se déplacer
    dans la salle du gouvernail, le prendre en main et lui demander de
    virer (soit sur bâbord soit sur tribord, en fonction de la direction
    actuelle du navire).

    Cette volonté appelle également les rameurs.

    """

    cle = "virer"
    ordre_court = re.compile(r"^v([0-9]{1,3})$", re.I)
    ordre_long = re.compile(r"^virer\s+([0-9]{1,3})$", re.I)
    def __init__(self, navire, direction=0):
        """Construit une volonté."""
        Volonte.__init__(self, navire)
        self.direction = direction

    @property
    def arguments(self):
        """Propriété à redéfinir si la volonté comprend des arguments."""
        return (self.direction, )

    def choisir_matelots(self, exception=None):
        """On ne retourne aucun matelot."""
        return None

    def executer(self, matelot):
        """Exécute la volonté."""
        navire = self.navire
        navire.equipage.controler("direction", self.direction)

    def crier_ordres(self, personnage):
        """On fait crier l'ordre au personnage."""
        direction = self.direction
        if direction < 23 or direction > 337:
            nom_dir = "l'est"
        elif direction < 67:
            nom_dir = "le sud-est"
        elif direction < 112:
            nom_dir = "le sud"
        elif direction < 157:
            nom_dir = "le sud-ouest"
        elif direction < 202:
            nom_dir = "l'ouest"
        elif direction < 247:
            nom_dir = "le nord-ouest"
        elif direction < 292:
            nom_dir = "le nord"
        else:
            nom_dir = "le nord-est"

        direction = (direction + 90) % 360
        nom_dir = lisser("cap à " + nom_dir)
        msg = "{} s'écrie : {}, {}° !".format(
                personnage.distinction_audible, nom_dir, direction)
        self.navire.envoyer(msg)

    @classmethod
    def extraire_arguments(cls, navire, direction):
        """Extrait les arguments de la volonté."""
        direction = (int(direction) - 90) % 360
        return (direction, )
