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import math
from character import CharacterPlan
from game import Roll, d

import pb2e



class Weapon:
    def __init__(self, crit_effect, main_die, potency, striking=1, fatal=0,
                 deadly=0, backstabber=False,
                 agile=False, twin=False) -> None:
        self.main_die = main_die
        self.striking = striking
        self.potency = potency
        self.backstabber = backstabber
        self.fatal = fatal
        self.deadly = deadly
        self.agile = agile
        self.twin = twin
        self.crit_effect = crit_effect

    def get_map(self, number):
        number = max(0, min(2, number))
        if self.agile:
            return number * -4
        return number * -5

    def damage(self, dmg_bonus, check=Roll.Success, number = 0):
        persistant_damage_factor = 3 + 1/3
        if self.backstabber:
            dmg_bonus += 1
            if self.potency >= 3:
                dmg_bonus += 1

        if self.twin and number > 0:
            dmg_bonus += self.striking

        if check == Roll.Success:
            return self.striking * d(self.main_die) + dmg_bonus
        if check == Roll.Crit:
            dmg = None
            if self.fatal is not None and self.fatal > 0:
                dmg = (self.striking + 1) * d(self.fatal)
            else:
                dmg = self.striking * d(self.main_die)
            dmg = 2 * (dmg+dmg_bonus)

            if self.deadly is not None and self.deadly > 0:
                dmg += max(1, self.striking-1) * d(self.deadly)

            if self.crit_effect == "crossbow":
                dmg += persistant_damage_factor * d(8).expected()
            elif self.crit_effect == "dart" or self.crit_effect == "knife":
                dmg += persistant_damage_factor * d(6).expected()
            elif self.crit_effect == "dagger":
                dmg += persistant_damage_factor * d(6).expected()
            elif self.crit_effect == "pick":
                dmg += 2 * self.striking
            
            return dmg
        return 0


    def strike(self, attack_bonus, dmg_bonus, ac, number = 0):
        def strike_dmg(check):
            return self.damage(dmg_bonus, check, number)
        bonus = attack_bonus+self.potency+self.get_map(number)
        attack_roll = d(20).apply(Roll.check, ac, bonus)
        return attack_roll.apply(strike_dmg)


def treat_wounds(check_res, heal_bonus=0):
    if check_res <= Roll.Fumble:
        return -d(8)
    if check_res == Roll.Fail:
        return 0
    if check_res == Roll.Success:
        return 2*d(8) + heal_bonus
    if check_res == Roll.Crit:
        return 4*d(8) + heal_bonus

def strike(check_res, dmg, crit_dmg=0):
    if check_res == Roll.Success:
        return dmg
    if check_res == Roll.Crit:
        return 2*dmg + crit_dmg
    return 0


def show_stat(name, dist):
    print(name)
    values = list(dist.probabilities.keys())
    mn = min(values)
    mx = max(values)
    print("min", mn, dist.probabilities[mn])
    print("max", mx, dist.probabilities[mx])
    print("Exp", dist.expected())
    print("Std", dist.standard_deviation())
    print("<0", dist.accumulate_prob(lambda x: x < 0))
    print(">0", dist.accumulate_prob(lambda x: x > 0))
    print("")
    assert abs(dist.accumulate_prob(lambda x: True) - 1) < math.pow(10, -10)


coin = d(2)


def main():
    treat_options = [
        {"dc": 15, "heal_bonus": 0},
        {"dc": 20, "heal_bonus": 15}
    ]
    bonus = 10
    show_stat("Assurance 15", 2*d(8))
    for opt in treat_options:
        dc = opt["dc"]
        treat = d(20).apply(Roll.check, dc, bonus).apply(treat_wounds, opt["heal_bonus"])
        risky = d(20).apply(Roll.check, dc, bonus+2).apply(lambda x: Roll.Crit if x == Roll.Success else x)
        risky = risky.apply(treat_wounds, opt["heal_bonus"]) + (-d(8))

        show_stat("Treat Wounds " + str(dc), treat)
        show_stat("Risky Surgery " + str(dc), risky)

    treat = d(20).apply(Roll.check, 20, bonus+1).apply(treat_wounds, 15)
    show_stat("Treat Wounds 20 +1", treat)

def main2():
    ac = 18
    bonus = +8
    dmg = d(6)+4
    attack = d(20).apply(Roll.check, ac, bonus)
    show_stat("attack", attack)
    total_dmg = attack.apply(strike, dmg+1)
    show_stat("dogslicer", total_dmg)
    total_dmg = attack.apply(strike, dmg, d(8))
    show_stat("rapier", total_dmg)

def test3():
    falcata = Weapon("sword", 8, 0, fatal=0)
    ac = 18
    bonus = +8 +3
    dmg_bonus = d(6)+4
    attack = d(20).apply(Roll.check, ac, bonus)
    show_stat("attack", attack)
    show_stat("falcata", falcata.strike(bonus, dmg_bonus, ac, 0))

def main4():
    #char_js = pb2e.download_character(pfb_id=160180)
    char_js = pb2e.open_character("quizrel2")
    plan = CharacterPlan(char_js)
    char = plan.build(1)
    print(char.toJSON())
    char = plan.build(5)
    print(char.toJSON())

def main5():
    from creature import stats
    print(stats.stats)


if __name__ == '__main__':
    main5()