#crib sheet:
#realm.write = echoing
#realm.send = send to Achaea
#wib = wield bow
#sh TARGET DIR = aim and snipe

from mudpyl.modules import EarlyInitialisingModule
from mudpyl.aliases import binding_alias
from mudpyl.triggers import binding_trigger

class MultiArcher(EarlyInitialisingModule):

    def __init__(self, targets):
        self.targets = targets
        self.direction = None
        self.index = None
        self.aliases = [self.shoot]
        self.triggers = [self.no_target, self.hit]

    @binding_alias("^ms(n|ne|e|se|s|sw|w|nw|i|o|u|d|m)$")
    def shoot(self, match, realm):
        realm.send_to_mud = False
        if not self.targets:
            realm.write("No target to shoot!")
            return
        self.direction = match.group(1)
        self.index = 0
        realm.send("wib")
        self.next_shot(realm)

    @binding_trigger("^(You are prevented from doing that by the magical shield around \w+|You detect nothing here by that name|Nothing can be seen here by that name|Ahh, I am truly sorry, but I do not see anyone by that name here|I do not recognise anything called that here|You cannot see that being here)\.$")
    def no_target(self, match, realm):
        if self.index is None:
            return
        if self.index < len(self.targets):
            self.next_shot(realm)
        else:
            self.index = None
            self.direction = None

    def next_shot(self, realm):
        realm.write("Trying to shoot " + self.targets[self.index])
        realm.send("sh %s %s" % (self.targets[self.index], self.direction))
        self.index += 1

    @binding_trigger("^You train your expert eye on \w+ and let fly an arrow with breathtaking precision\.$")
    def hit(self, match, realm):
        self.index = None
        self.direction = None