At the end of the game calculate kills/deaths, taking aegis into account
        This has to be done at the end when we have a playerid : hero map

def calculate_kills(self):
        """
        At the end of the game calculate kills/deaths, taking aegis into account
        This has to be done at the end when we have a playerid : hero map
        """

        aegises = deque(self.aegis)

        next_aegis = aegises.popleft() if aegises else None
        aegis_expires = None
        active_aegis = None

        real_kills = []

        for kill in self.kills:
            if next_aegis and next_aegis[0] < kill["tick"]:
                active_aegis = next_aegis[1]
                aegis_expires = next_aegis[0] + 1800 * 10  # 10 minutes

                self.indexed_players[active_aegis].aegises += 1

                next_aegis = aegises.popleft() if aegises else None
            elif aegis_expires and kill["tick"] > aegis_expires:
                active_aegis = None
                aegis_expires = None

            source = kill["source"]
            target = kill["target"]
            timestamp = kill["timestamp"]

            if active_aegis == self.heroes[target].index:
                #This was an aegis kill
                active_aegis = None
                aegis_expires = None

                self.heroes[target].aegis_deaths += 1
            else:
                real_kills.append(kill)
                self.heroes[target].add_death(source, timestamp)
                if target != source:
                    #Don't count a deny as a kill
                    self.heroes[source].add_kill(target, timestamp)

        self.kills = real_kills