from . import Ifc, Utl
import th

TYPE_NO_USE, TYPE_ESCAPE, TYPE_OFFENSE, TYPE_DEFENSE, TYPE_MISC = range(5)
RETURN_TRUE, RETURN_FALSE, HANDLED_TAINTED, HANDLED_NONE = range(4)
VEGETARIAN = 1
VEGAN = 2

class Item(object):
    def __init__(self):
        self.here = None
        self.blessed = False
        self.tainted = False
        self._living_form = None
        self.name = ''
        self.worn = False
        self.wielded = False
        self.destroyed = False
    
    living_form = Utl.WeakrefProperty('_living_form')
    
    def describe(self, article=True):
        ret = self.kind.adesc if article else self.kind.name
        if self.name: ret += ' named %s' % self.name
        if self.worn: ret += ' (worn)'
        if self.wielded: ret += ' (wielded)'
        return ret
    def destroy(self):
        if isinstance(self.here, th.Monster.Monster):
            self.here.inventory.remove(self)
            if self.here.wielded is self:
                self.here._set_unwielded(self)
            if self.worn:
                self.here._set_unworn(self)
        elif isinstance(self.here, th.Node.Node):
            self.here.items.remove(self)
        else:
            raise ValueError, 'Itm instance is being destroyed, but has no valid "here"'
        self.destroyed = True
        self.here = None